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LCL RESOURCES LIMITED — Capital/Financing Update 2019
Nov 24, 2019
65217_rns_2019-11-24_58507aa5-545d-4a75-96e2-8a6d2d343c04.pdf
Capital/Financing Update
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ASX Announcement, 25 November 2019
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First Hole at Chuscal Intersects Impressive 350-Metre Gold Interval from Surface
Potential for a Significant Gold Discovery at Chuscal Re-Affirmed
Metminco Limited ( ASX: MNC ), soon to be renamed Los Cerros Limited , is pleased to advise that it has intersected an impressive 350m wide zone of gold mineralisation, from surface, in the first diamond hole ever drilled into the Chuscal Gold Target, located in the Mid-Cauca Porphyry Belt of Colombia, and part of the Company’s Quinchia Gold Project (refer Figure 1).
The Mid-Cauca Porphyry Belt hosts several multi-million ounce porphyry and epithermal ore bodies, some with characteristics similar to those we are observing in early results now being received from the maiden drilling program into the large Chuscal Gold Target, as detailed within this release.
Highlights:
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First hole of maiden Chuscal drilling program (CHDDH001) ended at 452m depth, delivering significant gold mineralisation.
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CHDDH001 passed through an extensive 350-metre-wide mineralised zone from surface carrying an average uncut[1] grade of 0.57 g/t gold over this extensive interval.
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A number of intervals with higher grade[2] gold and silver were intersected within the broader 350m zone, including:
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6m @ 2.52 g/t Au and 10.25 g/t Ag from 0m to 6m, including 2m @ 5.56 g/t Au and 29 g/t Ag from surface
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22m @ 1.22 g/t Au and 0.50 g/t Ag from 10m to 32m
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54m @ 0.81 g/t Au and 0.63 g/t Ag from 56m to 110m
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2m @ 3.09 g/t Au and 0.77 g/t Ag from 222m to 224m
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2m @ 6.44 g/t Au and 87.40 g/t Ag from 324m to 326m
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8m @ 2.82 g/t Au and 29.96 g/t Ag from 342m to 350m
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The first hole provides critical information for understanding the broader mineralising system and supports the exploration model of a high temperature porphyry-related gold event being locally overprinted by lower temperature epithermal (ISS) vein gold.
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The second hole (CHDDH002) completed at 412.4m cut across the Guyacanes diorite and encountered considerable brecciation before ending in monzonite, all of which contained local ISS veining to varying degrees. Porphyry style potassic alteration was noted around 260m. Assays are awaited.
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Drilling of the 3rd hole (CHDDH003) is now in progress and expected to be completed by end of November, with assays due in mid-December.
1 Includes values below 0.1 g/t intervals which occur in isolated intervals of up to 10m length. Maximum value was 6.44 g/t over 2m.
2 Using a 0.5 g/t Au lower cut-off and maximum 4m internal dilution for gold. All widths quoted are intercept widths, not true widths, as there is insufficient information at this stage of exploration to know the geometries within the system.
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Results have now been received from the first diamond hole ever drilled at Chuscal, confirming Chuscal to be a porphyry related system. Most significantly, the first hole (CHDDH001) has reported a 350m wide intersection, from surface, grading 0.57 g/t gold. The highest gold interval is 6.44 g/t over 2m, while isolated silver intervals of up to 30 g/t over 8m were also present (Table 1 and Annex).
Metminco’s Managing Director, Jason Stirbinskis commented:
“This is a remarkably strong result on our first hole given the extent of the mineralisation encountered from surface, and it has proven very illuminating, greatly improving our understanding of the geology.
After outstanding drill success last year at the nearby Tesorito porphyry discovery, including a best result of 253.1m @ 1.01 g/t Au from surface , including a higher grade zone of 64m @ 1.67 g/t Au[4] , and now hitting this wide interval at Chuscal, we believe we are in enviable porphyry territory.
It remains early days into our drilling at Chuscal, but this first intersection has certainly provided very strong encouragement about what Chuscal could be when you consider the sheer scale of the gold anomaly at surface, the impressive widths of mineralisation encountered and its location in the heart of the Mid-Cauca belt, which is already host to several multi-million ounce porphyry and epithermal deposits.
When compared to other global porphyry systems and recent discoveries, this early result reaffirms our view that our Quinchia Project and Chuscal in particular, have great potential”.
Figure 1: Location of the Chuscal target, relative to regional major gold discoveries[3]
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3Sources from Company Annual Reports, information Sources from Company Annual Reports, has not been independently verified. MI: Measured & Indicated resource, PP: Proven & Probable reserve.
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About Chuscal and the Chuscal Drill Program
The Chuscal Prospect, now being drilled by Metminco, was prioritised for drilling as a result of its expansive 900m by 530m surface gold anomaly (rock-soil and rock chip geochemistry) averaging 1.76 g/t Au (uncut) (see ASX release of 6 December 2018[4] ), channel sampling of epithermal veins exposed in the Guayacanes artisanal workings which averaged 8g/t Au including a continuous along strike zone of 83m @ 7.3g/t Au[4] , and favourable geology - suggesting potential for Chuscal to be a very significant deposit for the company.
The Chuscal Prospect is located within the Quinchia Gold Project, which is a mineral district hosting a cluster of porphyry stocks, breccias, and epithermal vein occurrences. Specifically, the Chuscal target is situated in close proximity to existing Metminco discoveries:
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2kms from Metminco’s 100% owned Miraflores deposit where a Mineral Resource of 877,000 ounces at 2.82g/t Au[5] and an Ore Reserve 457,000 Au ounces at 3.29 g/t Au[5] has been defined, and a DFS completed in October 2017; and
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1km from the Tesorito Prospect, where Metminco has previously reported significant wide gold intersection from surface, with a best result of 384m @ 1.01g/t Au from surface to end-of-hole, including 32.5m @ 1.34 g/t Au from 48.8m ; and 156.6m @ 1.28 g/t Au from 88.3m (TSDH-02, see ASX release of 30 August 2018[4] ).
Together, Miraflores, Chuscal and Tesorito may form the cornerstone assets to a multi-mine district, with a central processing facility.
At Chuscal, the near surface, high-grade epithermal vein population overprinting the porphyry mineralisation is of particular interest given the potential to create wide mineralised zones with internal, higher grade zones.
Metminco is earning a 51% interest in the Chuscal Gold Prospect from Anglo Gold Ashanti Colombia SA (“ AngloGold ”), and otherwise has a 100% interest in the balance of the Quinchia Gold Project. Full details of the joint venture agreement were announced on 6 December 2018.
Technical Discussion of Results
The maiden hole (CHDDH001) of the first drill campaign ever conducted at Chuscal was designed to test the NE flank of the Guyacanes diorite which hosts artisanal underground workings; and to test a magnetic low geophysical anomaly flanking this to the north.
The hole reported significant gold values to 350m of the 452m deep hole with mineralisation occurring in monzonite, diorite and breccias (hydrothermal, crackle and magmatic breccias). There is a close correlation of the brecciation zone with a northwest trending magnetic low in the ground magnetic data, suggestive of magnetite destruction associated with a significant phyllic alteration hydrothermal event in this zone.
4 Tesorito drilling assays first announced 30 August 2018. Chuscal soil and underground channel sample assays first announced by the Company on 6 December 2018 and 21 January 2019 respectively. The Company confirms that it is not aware of any new information that affects the information contained in these presentations.
5 Feasibility Study first publicly released 18 October 2017 and updated 30 October 2017. The sensitivity table was first publicly released 28 May 2018. No material change has occurred after that date that may affect the JORC Code (2012 Edition) Ore Reserve estimation and Metminco confirms that all material assumptions and technical parameters applicable to the Reserve continue to apply. Source: Ausenco 2017.
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Consistent with our exploration model and expectations, the drill core has also confirmed two types of gold mineralisation:
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a higher temperature, broad disseminated Au event (associated with elevated (not mineralisation) Cu, Mo, Re values) suggesting a proximal porphyry source; as well as
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more localised, late stage Au, Ag epithermal mineralisation (associated with elevated Te, Sb, W, Zn, Pb), associated with thin epithermal veins overprinting many of the rock units. These quartzsulphide veinlets and veins have sericite-illite and clay minerals as vein selvages and halos. Quartz is drusy and filled with calcite. Sulphides are fine grained pyrite, minute galena and brown sphalerite. Where galena appears, the Ag content is enhanced.
The results from CHDDH001 and the geological logging of the second hole (assays pending) have materially increased the Company’s understanding of the regional system and unit relationships. Most importantly, the vein gold mineralisation event appears to be possibly related to structures that are part of a “horsetail” fault splay within the Chuscal project.
This late stage “horsetail” event cuts across all units including the diorite, monzonite and related breccias. This observation has raised the importance of the regional “horsetail” fault structure as the primary conduit and therefore a priority drilling target.
Table 1: Significant[6][7] intersections in CHDDH001 at Chuscal.
| Interval | Interval | Interval | Interval | Intersection | Intersection | Intersection |
|---|---|---|---|---|---|---|
| From(m) | To(m) | Au(g*m) | Ag (g*m) | Au(g/t) | Ag (g/t) | Interval(m) |
| 0.0 | 6.0 | 15.14 | 61.48 | 2.52 | 10.25 | 6.0 |
| 10.0 | 32.0 | 26.92 | 10.93 | 1.22 | 0.50 | 22.0 |
| 56.0 | 110.0 | 43.68 | 34.12 | 0.81 | 0.63 | 54.0 |
| 222.0 | 224.0 | 6.18 | 1.54 | 3.09 | 0.77 | 2.0 |
| 324.0 | 326.0 | 12.88 | 174.80 | 6.44 | 87.40 | 2.0 |
| 342.0 | 350.0 | 22.54 | 239.70 | 2.82 | 29.96 | 8.0 |
The interval from 324m to 350m in CHDDH001, which includes the intervals of 2m @ 6.44g/t Au and 87.40g/t Ag from 324m to 326m depth and 8m @ 2.82g/t Au and 29.96g/t Ag from 342m to 350m depth, are both logged as a magmatic breccia. Geochemistry suggests that this interval is dominantly of monzonitic composition but with the mineralised zones having a strong overprinting of both the porphyry and epithermal signatures. This, together with the presence of two dioritic breccias cutting and altering the magmatic monzonitic breccia, suggests this to be a potentially significant dilational zone experiencing repeated pulses of mineralisation, which is a favourable situation for the accumulation of gold associated with the multiple events.
Understanding this zone will be important for planning future drilling in order to test the structural zone along strike and/or discover similar repetitions. Similarly, high gold grades reported from the Guayacanes workings, not tested in CHDDH001, are also potentially related to a dilational “horsetail” structure.
6 Assuming 0.5g/t cut-off and maximum internal dilution of 4m. Intervals are drill intercept measurements as there is insufficient information at this time to define subsurface geometries
7 g*m refers to Au or Ag grade (g/t) times the length of the interval (m). It is a parameter used in early exploration to provide a weighting for the relevance of the intersection ie. gold content.
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Metminco’s Managing Director explained;
“As this is the first drilling campaign at Chuscal, our understanding is evolving dramatically with every few meters drilled. What we can say so far, is that we are confident we are seeing overprinting gold events that have the potential to introduce, remobilise and enrich the gold grades and, under the right conditions, could generate significant high grade zones within a much larger lower grade region, such as those discussed above.
The extensive gold event with a higher temperature porphyry signature is providing a large lower grade gold backdrop and, based on alteration signatures observed (potassic alteration), suggest there may be a porphyry source close by.
We also see vein gold cutting though most rock units. These ISS veins are more localised and preliminary interpretations suggest may be associated with a dilatational “horsetail” fault structure that is inferred in the area.
The deeper half of hole CHDDH002, which tested the Guayacanes veins (assays pending) and CHDDH003 will no doubt tell us much more about the role of the structures and source of the gold in the project”.
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Figure 2: Preliminary interpretation of results has raised the importance of the inferred regional “horsetail” fault system (red dashed lines) as a conduit for gold mineralisation.
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Figure 3: Cross section interpretation in the plane of CHDDH001. The vein sets are interpreted to be part of the regional “horsetail” fault structure as seen in figure one. The drill hole also intercepted a 2.6m wide stope at 43.7m, believed to be the mined-out Montana vein .
CHDDH002 was recently completed for a total depth of 412.4m (Figure 4). The primary objective of the drill hole is to test the eastern end of the large surface geochemical anomaly and pass underneath the historic Guayacanes workings to investigate the core of the diorite zone as mapped on surface. After passing through the diorite, the hole intersected an extension of the breccia zones mapped in CHDDH001. The second half of CHDDH002 is of most interest as it passes under old workings and should intercept several of the horsetail structures mentioned above (see Figures 2 & 4). This will be discussed once all results are received.
Mr Stirbinskis added; “We only have visual quick logs for most of CHDDH002. However, we note that we entered a zone of considerable potassic alteration characterised by magnetite and secondary biotite alteration around 260m down hole. Both of these alteration minerals are indicative of higher temperatures associated with porphyry style mineralisation. We were also very encouraged to intercept a number of zones of increased veining between 120m – 240m, 290m – 300m, 320m – 340m and again at 360m - 390m, which coincides with where the structural model predicted them to occur. We expect assay results for the hole to be available within 2 to 3 weeks.”
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Figure 4: Preliminary geologic cross-section and interpreted setting, along CHDDH002 based on a preliminary quick log of the drill hole.
Drill Program continuing
The rig has now begun drilling CHDDH003 (Figure 2). This hole lies some 500m north-northwest of CHDDH002 and will test the Corporacion diorite on the NW end of the gold soil anomaly and is orientated to intercept several of the inferred “horsetail” structures. The 350m hole is expected to take the remainder of November with results due mid-December.
Metminco’s Managing Director explained;
“We are early days into demonstrating the real exploration potential that we believe exists within our Quinchia Portfolio, and eagerly await the next instalment of assay results from our Chuscal drilling. The Company will provide timely updates to the market as and when new information comes to hand.”
For further enquiries contact:
Jason Stirbinskis Managing Director Metminco Limited
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ANNEX 1: Gold and silver assay results CHDDH001 Lat:75.41.26.761 Long:5.16.16.325 Az: 60 Inc:60
| SAMPLE | FROM | TO | Quick Log | Au | Ag | SAMPLE | FROM | TO | Quick Log | Au | Ag | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| m | m | Lithology | **g/t ** | **g/t ** | m | m | Lithology | **g/t ** | **g/t ** | |||
| D-29251 | 0 | 2 | Soil | 5.56 | 29.00 | D-29315 | 122 | 124 | Monz | 0.12 | 0.193 | |
| D-29252 | 2 | 4 | Soil | 1.00 | 0.752 | D-29316 | 124 | 126 | Monz | 0.38 | 0.545 | |
| D-29253 | 4 | 6 | Monz | 1.01 | 0.99 | D-29317 | 126 | 128 | Monz | 0.16 | 0.287 | |
| D-29254 | 6 | 8 | Monz | 0.34 | 0.429 | D-29318 | 128 | 130 | Monz | 0.2 | 0.325 | |
| D-29255 | 8 | 10 | Monz | 0.22 | 0.288 | D-29319 | 130 | 132 | Monz | 0.14 | 0.311 | |
| D-29256 | 10 | 12 | Monz | 0.62 | 0.373 | D-29320 | 132 | 134 | Monz | 0.16 | 0.344 | |
| D-29257 | 12 | 14 | Dio | 0.47 | 0.387 | D-29321 | 134 | 136 | Aplite | 0.43 | 0.503 | |
| D-29258 | 14 | 16 | Monz | 0.52 | 0.368 | D-29322 | 136 | 138 | Monz | 0.52 | 0.551 | |
| D-29259 | 16 | 18 | Monz | 0.87 | 0.462 | D-29323 | 138 | 140 | Monz | 0.35 | 0.523 | |
| D-29260 | 18 | 20 | Monz | 1.07 | 0.512 | D-29325 | 140 | 142 | Monz | 0.19 | 0.374 | |
| D-29261 | 20 | 22 | Monz | 1.02 | 0.781 | D-29326 | 142 | 144 | Monz | 0.19 | 0.32 | |
| D-29262 | 22 | 24 | Monz | 0.84 | 0.694 | D-29327 | 144 | 146 | Monz | 0.18 | 0.358 | |
| D-29263 | 24 | 26 | 24.8 contact | 1.52 | 0.611 | D-29328 | 146 | 148 | Monz | 0.14 | 0.298 | |
| D-29264 | 26 | 28 | Dio | 0.61 | 0.37 | D-29330 | 148 | 150 | 148-149 Bx | 0.09 | 0.263 | |
| D-29265 | 28 | 30 | Dio | 5.06 | 0.345 | D-29331 | 150 | 152 | Monz | 0.09 | 0.222 | |
| D-29266 | 30 | 32 | Monz | 0.86 | 0.563 | D-29332 | 152 | 154 | Monz | 0.25 | 0.397 | |
| D-29267 | 32 | 34 | Monz | 0.25 | 0.298 | D-29333 | 154 | 156 | Monz | 0.18 | 0.429 | |
| D-29268 | 34 | 36 | Monz | 0.42 | 0.432 | D-29334 | 156 | 158 | Monz | 0.22 | 0.436 | |
| D-29269 | 36 | 38 | Magm Bx | 0.26 | 0.418 | D-29335 | 158 | 160 | Monz | 0.3 | 0.398 | |
| D-29270 | 38 | 40 | Monz | 0.42 | 0.658 | D-29336 | 160 | 162 | Monz | 0.11 | 0.474 | |
| D-29271 | 40 | 42 | Monz | 0.37 | 0.413 | D-29337 | 162 | 164 | Monz | 0.26 | 0.359 | |
| D-29272 | 42 | 43.7 | Monz | 0.32 | 0.901 | D-29338 | 164 | 166 | Monz | 0.17 | 0.312 | |
| **Stope ** | 43.7 | 46.3 | **Stope ** | D-29339 | 166 | 168 | Monz | 0.24 | 0.394 | |||
| D-29273 | 46.3 | 48 | Monz | 0.36 | 2.79 | D-29340 | 168 | 170 | Monz | 0.11 | 0.323 | |
| D-29275 | 48 | 50 | Monz | 0.33 | 0.361 | D-29341 | 170 | 172 | Monz | 0.16 | 0.318 | |
| D-29276 | 50 | 52 | Monz | 0.22 | 0.384 | D-29342 | 172 | 174 | Monz | 0.25 | 0.363 | |
| D-29277 | 52 | 54 | Monz | 0.29 | 0.343 | D-29343 | 174 | 176 | Monz | 0.33 | 0.441 | |
| D-29278 | 54 | 56 | 55.09 contact | 0.41 | 0.484 | D-29344 | 176 | 178 | Monz | 0.35 | 0.639 | |
| D-29280 | 56 | 58 | Aplite | 0.78 | 0.768 | D-29345 | 178 | 180 | Monz | 0.24 | 0.482 | |
| D-29281 | 58 | 60 | Aplite | 1.03 | 0.66 | D-29346 | 180 | 182 | Monz | 0.19 | 0.678 | |
| D-29282 | 60 | 62 | Aplite | 0.78 | 0.55 | D-29347 | 182 | 184 | Monz | 0.16 | 0.374 | |
| D-29283 | 62 | 64 | 63.3 Contact | 0.45 | 0.441 | D-29348 | 184 | 186 | Monz | 0.09 | 0.288 | |
| D-29284 | 64 | 66 | Monz | 0.82 | 0.762 | D-29350 | 186 | 188 | Monz | 0.11 | 0.278 | |
| D-29285 | 66 | 68 | Monz | 0.74 | 0.686 | D-29351 | 188 | 190 | Monz | 0.05 | 0.309 | |
| D-29286 | 68 | 70 | Monz | 1.52 | 0.955 | D-29352 | 190 | 192 | 191 contact | 0.09 | 0.236 | |
| D-29287 | 70 | 72 | Monz | 0.7 | 0.694 | D-29353 | 192 | 194 | Magm Bx | 0.14 | 0.27 | |
| D-29288 | 72 | 74 | Monz | 1.08 | 0.861 | D-29355 | 194 | 196 | Dior | 0.06 | 0.144 | |
| D-29289 | 74 | 76 | Monz | 1.23 | 0.741 | D-29356 | 196 | 198 | Dior | 0.04 | 0.126 | |
| D-29290 | 76 | 78 | Monz | 0.73 | 0.961 | D-29357 | 198 | 200 | Dior | 0.09 | 0.139 | |
| D-29291 | 78 | 80 | Monz | 0.28 | 0.44 | D-29358 | 200 | 202 | 200-201 vein | 0.11 | 0.233 | |
| D-29292 | 80 | 82 | 1m magm Bx | 0.91 | 0.681 | D-29359 | 202 | 204 | Dior | 0.2 | 0.232 | |
| D-29293 | 82 | 84 | Monz | 0.81 | 0.717 | D-29360 | 204 | 206 | Dior | 0.12 | 0.125 | |
| D-29294 | 84 | 86 | Monz | 0.63 | 0.516 | D-29361 | 206 | 208 | Magm Bx | 0.19 | 0.271 | |
| D-29295 | 86 | 88 | Monz | 0.52 | 0.54 | D-29362 | 208 | 210 | Magm Bx | 0.34 | 0.238 | |
| D-29296 | 88 | 90 | Monz | 0.66 | 0.704 | D-29363 | 210 | 212 | Magm Bx | 0.52 | 0.281 | |
| D-29297 | 90 | 92 | Aplite | 0.37 | 0.472 | D-29364 | 212 | 214 | Hyd Bx | 0.28 | 0.116 | |
| D-29298 | 92 | 94 | Monz | 0.46 | 0.644 | D-29365 | 214 | 216 | Hyd Bx | 0.23 | 0.255 | |
| D-29300 | 94 | 96 | 95 contact | 0.64 | 0.613 | D-29366 | 216 | 218 | Hyd Bx | 0.27 | 0.216 | |
| D-29301 | 96 | 98 | Magm Bx | 1.16 | 0.799 | D-29367 | 218 | 220 | Hyd Bx | 0.22 | 0.155 | |
| D-29302 | 98 | 100 | Monz | 0.96 | 0.513 | D-29368 | 220 | 222 | Hyd Bx | 0.16 | 0.197 | |
| D-29303 | 100 | 102 | Monz | 0.28 | 0.367 | D-29369 | 222 | 224 | Hyd Bx | 3.09 | 0.769 | |
| D-29305 | 102 | 104 | Monz | 0.35 | 0.454 | D-29370 | 224 | 226 | Hyd Bx | 0.27 | 0.341 | |
| D-29306 | 104 | 106 | Monz | 0.54 | 0.505 | D-29371 | 226 | 228 | Hyd Bx | 0.23 | 0.34 | |
| D-29307 | 106 | 108 | Monz | 2.79 | 0.562 | D-29372 | 228 | 230 | Hyd Bx | 0.36 | 0.364 | |
| D-29308 | 108 | 110 | Monz | 0.62 | 0.452 | D-29373 | 230 | 232 | Hyd Bx | 0.59 | 0.406 | |
| D-29309 | 110 | 112 | Monz | 0.29 | 0.396 | D-29375 | 232 | 234 | Hyd Bx | 0.43 | 0.211 | |
| D-29310 | 112 | 114 | 113 contact | 0.17 | 0.35 | D-29376 | 234 | 236 | Hyd Bx | 0.71 | 0.259 | |
| D-29311 | 114 | 116 | Magm Bx | 0.2 | 0.237 | D-29377 | 236 | 238 | Hyd Bx | 0.14 | 0.224 | |
| D-29312 | 116 | 118 | Monz | 0.17 | 0.303 | D-29378 | 238 | 240 | Hyd Bx | 0.35 | 0.277 | |
| D-29313 | 118 | 120 | Monz | 0.15 | 0.302 | D-29380 | 240 | 242 | Hyd Bx | 0.3 | 0.258 | |
| D-29314 | 120 | 122 | Monz | 0.16 | 0.299 | D-29381 | 242 | 244 | Hyd Bx | 0.19 | 0.198 |
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| SAMPLE | FROM | TO | Quick Log | Au | Ag | SAMPLE | FROM | TO | Quick Log | Au | Ag | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| m | m | Lithology | **g/t ** | **g/t ** | m | m | Lithology | **g/t ** | **g/t ** | |||
| D-29382 | 244 | 246 | Hyd Bx | 0.16 | 0.22 | D-29447 | 366 | 368 | Magm Bx | 0.06 | 0.12 | |
| D-29383 | 246 | 248 | Hyd Bx | 0.28 | 0.411 | D-29448 | 368 | 370 | Magm Bx | 0.31 | 0.465 | |
| D-29384 | 248 | 250 | Hyd Bx | 0.23 | 0.376 | D-29450 | 370 | 372 | Magm Bx | 0.03 | 0.116 | |
| D-29385 | 250 | 252 | Hyd Bx | 0.18 | 0.323 | D-29451 | 372 | 374 | Magm Bx | 0.02 | 0.119 | |
| D-29386 | 252 | 254 | Hyd Bx | 0.18 | 0.355 | D-29452 | 374 | 376 | Magm Bx | 0.09 | 0.147 | |
| D-29387 | 254 | 256 | Hyd Bx | 0.12 | 0.3 | D-29453 | 376 | 378 | Magm Bx | 0.11 | 0.174 | |
| D-29388 | 256 | 258 | Hyd Bx | 0.15 | 0.261 | D-29455 | 378 | 380 | Magm Bx | 0.21 | 0.214 | |
| D-29389 | 258 | 260 | Hyd Bx | 0.15 | 0.222 | D-29456 | 380 | 382 | Magm Bx | 0.07 | 0.181 | |
| D-29390 | 260 | 262 | Hyd Bx | 0.15 | 0.219 | D-29457 | 382 | 384 | Magm Bx | 0.09 | 0.134 | |
| D-29391 | 262 | 264 | Hyd Bx | 0.21 | 0.268 | D-29458 | 384 | 386 | Magm Bx | 0.68 | 0.242 | |
| D-29392 | 264 | 266 | Hyd Bx | 0.29 | 0.336 | D-29459 | 386 | 388 | Magm Bx | 0.47 | 0.197 | |
| D-29393 | 266 | 268 | Hyd Bx | 0.23 | 0.302 | D-29460 | 388 | 390 | Magm Bx | 0.35 | 0.244 | |
| D-29394 | 268 | 270 | Hyd Bx | 0.45 | 0.408 | D-29461 | 390 | 392 | Magm Bx | 0.1 | 0.186 | |
| D-29395 | 270 | 272 | 270.8 contact | 0.47 | 0.299 | D-29462 | 392 | 394 | Magm Bx | 0.9 | 0.808 | |
| D-29396 | 272 | 274 | Crkl Monz | 0.35 | 0.303 | D-29463 | 394 | 396 | Magm Bx | 0.08 | 0.189 | |
| D-29397 | 274 | 276 | Crkl Monz | 0.45 | 0.404 | D-29464 | 396 | 398 | Magm Bx | 0.09 | 0.203 | |
| D-29398 | 276 | 278 | Crkl Monz | 0.28 | 0.264 | D-29465 | 398 | 400 | Magm Bx | 0.09 | 0.293 | |
| D-29400 | 278 | 280 | Crkl Monz | 0.27 | 0.223 | D-29466 | 400 | 402 | Magm Bx | 0.08 | 0.29 | |
| D-29401 | 280 | 282 | Crkl Monz | 1.26 | 0.248 | D-29467 | 402 | 404 | Magm Bx | 0.04 | 0.197 | |
| D-29402 | 282 | 284 | Crkl Monz | 0.31 | 0.231 | D-29468 | 404 | 406 | Magm Bx | 0.1 | 0.56 | |
| D-29403 | 284 | 286 | Crkl Monz | 0.69 | 0.217 | D-29469 | 406 | 408 | Magm Bx | 0.02 | 0.221 | |
| D-29405 | 286 | 288 | Crkl Monz | 0.35 | 0.274 | D-29470 | 408 | 410 | Magm Bx | 0.04 | 0.214 | |
| D-29406 | 288 | 290 | Crkl Monz | 0.4 | 0.226 | D-29471 | 410 | 412 | Monz | 0.03 | 0.168 | |
| D-29407 | 290 | 292 | 291-293 vein | 0.15 | 0.233 | D-29472 | 412 | 414 | Monz | 0.07 | 0.195 | |
| D-29408 | 292 | 294 | 291-293 vein | 0.77 | 2.46 | D-29473 | 414 | 416 | Monz | 0.15 | 0.316 | |
| D-29409 | 294 | 296 | Crkl Monz | 0.07 | 0.214 | D-29475 | 416 | 418 | Monz | 0.23 | 0.354 | |
| D-29410 | 296 | 298 | 297-299 Dior | 0.5 | 0.248 | D-29476 | 418 | 420 | Monz | 0.07 | 0.199 | |
| D-29411 | 298 | 300 | 297-299 Dior | 0.11 | 0.19 | D-29477 | 420 | 422 | Magm Bx | 0.06 | 0.192 | |
| D-29412 | 300 | 302 | Crkl Monz | 0.31 | 0.354 | D-29478 | 422 | 424 | Magm Bx | 0.19 | 0.319 | |
| D-29413 | 302 | 304 | Crkl Monz | 0.24 | 0.311 | D-29480 | 424 | 426 | Magm Bx | 0.19 | 0.482 | |
| D-29414 | 304 | 306 | Crkl Monz | 1.84 | 0.681 | D-29481 | 426 | 428 | Monz | 0.07 | 0.227 | |
| D-29415 | 306 | 308 | Crkl Monz | 0.54 | 0.379 | D-29482 | 428 | 430 | Monz | 0.07 | 0.19 | |
| D-29416 | 308 | 310 | Magm Bx | 0.43 | 0.414 | D-29483 | 430 | 432 | Monz | 0.1 | 0.474 | |
| D-29417 | 310 | 312 | Magm Bx | 0.33 | 0.266 | D-29484 | 432 | 434 | Monz | 0.08 | 0.209 | |
| D-29418 | 312 | 314 | Magm Bx | 0.08 | 0.215 | D-29485 | 434 | 436 | Monz | 0.09 | 0.199 | |
| D-29419 | 314 | 316 | Magm Bx | 0.09 | 0.181 | D-29486 | 436 | 438 | Monz | 0.14 | 0.311 | |
| D-29420 | 316 | 318 | Magm Bx | 0.07 | 0.187 | D-29487 | 438 | 440 | Monz | 0.08 | 0.256 | |
| D-29421 | 318 | 320 | Magm Bx | 0.03 | 0.088 | D-29488 | 440 | 442 | **441-442 And Porph ** | 0.02 | 0.149 | |
| D-29422 | 320 | 322 | Magm Bx | 0.07 | 0.246 | D-29489 | 442 | 444 | Monz | 0.07 | 0.203 | |
| D-29423 | 322 | 324 | Magm Bx | 0.14 | 0.689 | D-29490 | 444 | 446 | Monz | 0.05 | 0.18 | |
| D-29425 | 324 | 326 | Magm Bx | 6.44 | 87.4 | D-29491 | 446 | 448 | Monz | 0.08 | 0.251 | |
| D-29426 | 326 | 328 | Magm Bx | 0.27 | 0.856 | D-29492 | 448 | 450 | Monz | 0.19 | 0.449 | |
| D-29427 | 328 | 330 | Magm Bx | 0.27 | 1.29 | D-29493 | 450 | 452 | Monz | 0.36 | 0.614 | |
| D-29428 | 330 | 332 | Magm Bx | 0.12 | 0.253 | Note: missing sample numbers are QA/QC samples inserted by Metminco to provide quality control information. Hyd Bx- Hydrothermal Breccia Crkl Monz- Crackle Monzonite Magma Bx- Magmatic Breccia And Porph- Andesite Porphyry |
||||||
| D-29430 | 332 | 334 | Magm Bx | 0.17 | 0.249 | |||||||
| D-29431 | 334 | 336 | Magm Bx | 0.17 | 0.223 | |||||||
| D-29432 | 336 | 338 | Magm Bx | 0.28 | 0.326 | |||||||
| D-29433 | 338 | 340 | Magm Bx | 0.6 | 0.753 | |||||||
| D-29434 | 340 | 342 | Magm Bx | 0.35 | 1.30 | |||||||
| D-29435 | 342 | 344 | Magm Bx | 3.51 | 43.3 | |||||||
| D-29436 | 344 | 346 | Magm Bx | 3.42 | 20.9 | |||||||
| D-29437 | 346 | 348 | Magm Bx | 1.47 | 12.95 | |||||||
| D-29438 | 348 | 350 | Magm Bx | 2.87 | 42.7 | |||||||
| D-29439 | 350 | 352 | Magm Bx | 0.19 | 0.469 | |||||||
| D-29440 | 352 | 354 | Magm Bx | 0.08 | 0.287 | |||||||
| D-29441 | 354 | 356 | Magm Bx | 0.12 | 0.3 | |||||||
| D-29442 | 356 | 358 | Magm Bx | 0.15 | 0.305 | |||||||
| D-29443 | 358 | 360 | Magm Bx | 0.26 | 0.207 | |||||||
| D-29444 | 360 | 362 | Magm Bx | 0.07 | 0.234 | |||||||
| D-29445 | 362 | 364 | Magm Bx | 0.08 | 0.181 | |||||||
| D-29446 | 364 | 366 | Magm Bx | 0.03 | 0.143 |
==> picture [134 x 39] intentionally omitted <==
JORC STATEMENTS - COMPETENT PERSONS STATEMENTS
The technical information related to Metminco’s assets contained in this report that relates to Exploration Results (excluding those pertaining to Mineral Resources and Reserves) is based on information compiled by Mr Nicholas Winer, who is a Member of the Australasian Institute of Mining and Metallurgy and who is a Consulting Geologist employed by Metminco on a part-time basis. Mr Winer has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration, and to the activity which he is undertaking, to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr Winer consents to the inclusion in the release of the matters based on the information he has compiled in the form and context in which it appears.
The Company is not aware of any new information or data that materially affects the information included in this release.
FORWARD LOOKING STATEMENTS This document contains forward looking statements concerning Metminco. Forwardlooking statements are not statements of historical fact and actual events and results may differ materially from those described in the forward-looking statements as a result of a variety of risks, uncertainties and other factors. Forward-looking statements are inherently subject to business, economic, competitive, political and social uncertainties and contingencies. Many factors could cause the Company’s actual results to differ materially from those expressed or implied in any forward-looking information provided by the Company, or on behalf of the Company. Such factors include, among other things, risks relating to additional funding requirements, metal prices, exploration, development and operating risks, competition, production risks, regulatory restrictions, including environmental regulation and liability and potential title disputes. Forward looking statements in this document are based on Metminco’s beliefs, opinions and estimates of Metminco as of the dates the forward-looking statements are made, and no obligation is assumed to update forward looking statements if these beliefs, opinions and estimates should change or to reflect other future developments. Although management believes that the assumptions made by the Company and the expectations represented by such information are reasonable, there can be no assurance that the forward-looking information will prove to be accurate. Forwardlooking information involves known and unknown risks, uncertainties, and other factors which may cause the actual results, performance or achievements of the Company to be materially different from any anticipated future results, performance or achievements expressed or implied by such forward-looking information. Such factors include, among others, the actual market price of gold, the actual results of future exploration, changes in project parameters as plans continue to be evaluated, as well as those factors disclosed in the Company's publicly filed documents. Readers should not place undue reliance on forward-looking information. The Company does not undertake to update any forward-looking information, except in accordance with applicable securities laws. No representation, warranty or undertaking, express or implied, is given or made by the Company that the occurrence of the events expressed or implied in any forward-looking statements in this presentation will actually occur.
JORC Code, 2012 Edition – Table 1 report template
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Sampling | • Nature and quality of sampling (eg cut channels, random | •Diamond drilling is carried out to produce HQ3 core. |
| techniques | chips, or specific specialised industry standard | •Following verification of the integrity of sealed core boxes and the core within |
| measurement tools appropriate to the minerals under | them at the Metminco core shed in Quinchia, the core is ‘quick logged’ by a | |
| investigation, such as down hole gamma sondes, or | Project Geologist and marked for sampling. Following the marking of the cutting | |
| handheld XRF instruments, etc). These examples should | line and allocation of sample numbers, allowing for insertion of QA/QC samples, | |
| not be taken as limiting the broad meaning of sampling. | the core is cut by employees in the company’s facility within the core-shed. | |
| • Include reference to measures taken to ensure sample | •Nominally core is cut in half and sampled on 2m intervals, however the interval | |
| representivity and the appropriate calibration of any | may be reduced by the Project Geologist based on the visual ‘quick log’. | |
| measurement tools or systems used. | •Samples are bagged in numbered calico sacks and these placed in heavy duty | |
| • Aspects of the determination of mineralisation that are | plastic bags with the sample tag. Groups of 5 samples are bagged in a hessian | |
| Material to the Public Report. | sack, labelled and sealed, for transport. | |
| • In cases where ‘industry standard’ work has been done this | •Sample preparation is carried out by ALS Laboratory in Medellin where the | |
| would be relatively simple (eg ‘reverse circulation drilling | whole sample is crushed to -2mm and then 1kg split for pulverising to - | |
| was used to obtain 1 m samples from which 3 kg was | 75micron. | |
| pulverised to produce a 30 g charge for fire assay’). In other | •Splits are then generated for fire assay (Au-AA26) and analyses for an | |
| cases more explanation may be required, such as where | additional 48 elements using multi-acid (four acid) digest with ICP finish (ME- | |
| there is coarse gold that has inherent sampling problems. | MS61) at ALS’s laboratory in Lima, Peru. | |
| Unusual commodities or mineralisation types (eg submarine | ||
| nodules) may warrant disclosure of detailed information. | ||
| Drilling | • Drill type (eg core, reverse circulation, open-hole hammer, | •The maiden drilling program at Chuscal is a diamond drilling program collecting |
| techniques | rotary air blast, auger, Bangka, sonic, etc) and details (eg | HQ3 diameter core along the length of the hole. In the case of operational |
| core diameter, triple or standard tube, depth of diamond | necessity, this will be reduced to NQ core. Triple tubes are used to collect the | |
| tails, face-sampling bit or other type, whether core is | core and, where ground conditions permit, core orientation is conducted on a | |
| oriented and if so, by what method, etc). | regular basis. | |
| Drill sample | • Method of recording and assessing core and chip sample | •The drillers are required to meet a minimum recover rate of +90%. |
| recovery | recoveries and results assessed. | •On site, the drill crew are responsible for labelling (wood spacer block) the |
| • Measures taken to maximise sample recovery and ensure | beginning and end depth of each drill run plus actual and expected recovery in | |
| representative nature of the samples. | meters. This and other field processes are audited on a daily basis. | |
| • Whether a relationship exists between sample recovery and | •On receipt of the core boxes in the core shed facility at the Quinchia camp, the | |
| grade and whether sample bias may have occurred due to | coreisvisuallyverifiedfor inconsistenciesin labelling, degree of fracturing |
11
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| preferential loss/gain of fine/coarse material. | (core breakage versus natural), lithology progression, core orientation marks | ||
| etc. If the core meets the required conditions a term of acceptance is signed. | |||
| • | The Core is then cleaned, core pieces are orientated and joined, lengths and | ||
| labelling are verified, and geotechnical observations made. The core box is | |||
| then photographed. | |||
| • | Orientated sections of core are aligned, and a geologic log prepared. | ||
| • | Following logging, sample intervals are determined and marked up and the | ||
| cutting line transferred to the core. | |||
| • | Core quality is, in general high and far exceeding minimum recovery | ||
| conditions. | |||
| Logging | • Whether core and chip samples have been geologically and | • | Logging is carried out visually by the Project Geologists focusing on lithology, |
| geotechnically logged to a level of detail to support | structure, alteration and mineralization characteristics. Initially a ‘quick log’ is | ||
| appropriate Mineral Resource estimation, mining studies | carried out to guide sampling and this is then followed by detailed logging. The | ||
| and metallurgical studies. | level of logging is appropriate for exploration and initial resource estimation | ||
| • Whether logging is qualitative or quantitative in nature. Core | evaluation. | ||
| (or costean, channel, etc) photography. | • | All core is photographed following the initial verification on receipt of the core | |
| • The total length and percentage of the relevant intersections | boxes and then again after the ‘quick log’, cutting and sampling. Ie half core. | ||
| logged. | • | All core is logged and sampled, nominally on 1m and 2m intervals respectively | |
| but in areas of interest more dense logging and sampling may be undertaken. | |||
| • | On receipt of the multi-element geochemical data this is interpreted for | ||
| consistency with the geologic logging. | |||
| Sub-sampling | • If core, whether cut or sawn and whether quarter, half or all |
• | After logging and definition of sample intervals by the geologist, the marked |
| techniques | core taken. | core is cut in half using a diamond saw in a specially designed facility on site. All | |
| and sample | • If non-core, whether riffled, tube sampled, rotary split, etc | core is cut and sampled. The standard sample interval is 2m but may be varied | |
| preparation | and whether sampled wet or dry. | by the geologist to reflect lithology, alteration or mineralization variations. | |
| • For all sample types, the nature, quality and | • | As appropriate, all half or quarter core generated for a specific sample interval is | |
| appropriateness of the sample preparation technique. | collected and bagged. The other half of the core remains in the core box as a | ||
| • Quality control procedures adopted for all sub-sampling | physical archive. | ||
| stages to maximise representivity of samples. | • | The large size (4-8kg) of individual samples and continuous sampling of the drill | |
| • Measures taken to ensure that the sampling is | hole, provides representative samples for exploration activities. | ||
| representative of the in situ material collected, including for | • | Through the use of QA/QC sample procedure in this phase of drilling, any | |
| instance results for field duplicate/second-half sampling. | special sample preparation requirements eg due to unexpectedly coarse gold, | ||
| • Whether sample sizes are appropriate to the grain size of | will be identified and addressed prior to the resource drilling phase. | ||
| _the material being sampled. _ | |||
| Quality of | • The nature, quality and appropriateness of the assaying and | • |
All samples are prepared at the ALS Medellin facility using industry accepted |
| assay data | laboratory procedures used and whether the technique is | preparation procedures. Pulps for assay and analysis are sent to their facility in | |
| and | considered partial or total. | LimaPeru. |
12
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| laboratory | • For geophysical tools, spectrometers, handheld XRF | • | Gold assays are obtained using a lead collection fire assay technique (Au- |
| tests | instruments, etc, the parameters used in determining the | AA26) and analyses for an additional 48 elements using multi-acid (four acid) | |
| analysis including instrument make and model, reading | digest with ICP finish (ME-MS61) at ALS’s laboratory in Lima, Peru. | ||
| times, calibrations factors applied and their derivation, etc. | • | Fire assay for gold is considered a “total” assay technique. | |
| • Nature of quality control procedures adopted (eg standards, | • | An acid (4 acid) digest is considered a total digestion technique. However, for | |
| blanks, duplicates, external laboratory checks) and whether | some resistant minerals, not considered of economic value at this time, the | ||
| acceptable levels of accuracy (ie lack of bias) and precision | digestion may be partial e.g. Zr, Ti etc. | ||
| have been established. | • | No field non-assay analysis instruments were used in the analyses reported. | |
| • | Metminco uses certified reference material, blank samples and field duplicates | ||
| inserted into the sample sequence to verify both preparation and analytical | |||
| quality. | |||
| • | Results from the Metminco QAQC samples are reviewed by Metminco for | ||
| indications of any significant analytical bias or preparation errors in analyses | |||
| reported by the Laboratory. | |||
| • | The Laboratory also carries out internal laboratory QAQC checks which are | ||
| also reported and reviewed as part of the Metminco QAQC analysis. The | |||
| geochemical data is only accepted where the analyses are performed within | |||
| acceptable industry standard limits. | |||
| Verification of | • The verification of significant intersections by either |
• | All digital data received is verified and validated by the Company’s Competent |
| sampling and | independent or alternative company personnel. | Person before loading into the assay database. | |
| assaying | • The use of twinned holes. | • | Over limit gold or base metal samples are re-analysed using appropriate, |
| • Documentation of primary data, data entry procedures, data | alternative analytical techniques. (Au-Grav22 50g and OG46). | ||
| verification, data storage (physical and electronic) protocols. | • |
Reported results are compiled by the Company’s geologists and verified by the | |
| • Discuss any adjustment to assay data. | Company’s database administrator and exploration manager. | ||
| • | No adjustments to assay data were made. | ||
| Location of | • Accuracy and quality of surveys used to locate drill holes | • | The drill hole is located using a handheld GPS and Lider DTM. This has an |
| data points | (collar and down-hole surveys), trenches, mine workings | approximate accuracy of 3-5m which is considered sufficient at this stage of | |
| and other locations used in Mineral Resource estimation. | exploration. | ||
| • Specification of the grid system used. | • | On completion of the drilling program, the collars of all holes will be surveyed | |
| • Quality and adequacy of topographic control. | using high precision survey equipment. | ||
| • | Downhole deviations of the drill hole are evaluated on a regular basis and | ||
| recorded in a drill hole survey file to allow plotting in 3D. | |||
| • | The grid system is WGS84 UTM Z18N. | ||
| Data spacing | • Data spacing for reporting of Exploration Results. | • | The interpretation of surface mapping and sampling relies on correlating |
| and | • Whether the data spacing and distribution is sufficient to | isolated points of information that are influenced by factors such as weathering, | |
| distribution | establish the degree of geological and grade continuity | accessibility and sample representativity. This impacts on the reliability of | |
| appropriate for the Mineral Resource and Ore Reserve | interpretations which are stronglyinfluenced bythe experience of thegeologic |
13
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| estimation procedure(s) and classifications applied. | team. Structures, lithologic and alteration boundaries based on surficial | ||
| • Whether sample compositing has been applied. | information are interpretations based on the available data and will be refined as | ||
| more data becomes available during the exploration program. | |||
| • | It is only with drilling, that provides information in the third dimension, that the | ||
| geologic model can be refined. | |||
| Orientation of | • Whether the orientation of sampling achieves unbiased | • | This is the first drilling program at Chuscal. To date the extent and reliability of |
| data in | sampling of possible structures and the extent to which this | geologic information is dependent largely on surface observations, which tend | |
| relation to | is known, considering the deposit type. | to be localised and affected by weathering. | |
| geological | • If the relationship between the drilling orientation and the | • | To date, two sets of veining have been identified being around 135° with steep |
| structure | orientation of key mineralised structures is considered to | dip to the SW and 090° with steep to moderate dip to the S. | |
| have introduced a sampling bias, this should be assessed | • | All drillholes are planned to best test the lithologies and structures as known, | |
| and reported if material. | taking into account that steep topography limits alternatives for locating holes. | ||
| • | CHDH-001 is perpendicular to the first vein set and oblique to the second. | ||
| CHDH-002 is oblique to the first and perpendicular to the second. | |||
| Sample | • The measures taken to ensure sample security. | • | All core boxes are nailed closed and sealed at the drill platform. |
| security | • | On receipt at the Quinchia core shed the core boxes are examined for integrity. | |
| If there are no signs of damage or violation of the boxes, they are opened and | |||
| the core is evaluated for consistency and integrity. Only then is receipt of the | |||
| core formally signed off. | |||
| • | The core shed and all core boxes, samples and pulps are secured in a closed | ||
| Company facility at Quinchia secured by armed guard on a 24/7 basis. | |||
| • | Each batch of samples are transferred in a locked vehicle and driven 165 km to | ||
| ALS laboratories for sample preparation in Medellin. The transfer is | |||
| accompanied by a company employee. | |||
| Audits or | • The results of any audits or reviews of sampling techniques | • | n/a at this stage |
| reviews | and data. |
Section 2 Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this section.)
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| Mineral | • Type, reference name/number, location and ownership | •The Farm-in and JV agreement with AngloGold Ashanti Colombia SA (AGAC) |
| tenement and | including agreements or material issues with third parties |
includes three granted Exploration Titles with AGAC as current beneficial |
| land tenure | such as joint ventures, partnerships, overriding royalties, | owner. |
| status | native title interests, historical sites, wilderness or national | •The Exploration Titles were validly issued as Concession Agreements pursuant |
14
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| park and environmental settings. | to the Mining Code. | |
| • The security of the tenure held at the time of reporting along | •The Concession Agreement grants its holders the exclusive right to explore for | |
| with any known impediments to obtaining a licence to | and exploit all mineral substances on the parcel of land covered by such | |
| operate in the area. | concession agreement. | |
| •There are no outstanding encumbrances or charges registered against the | ||
| Exploration Title at the National Registry. | ||
| Exploration | • Acknowledgment and appraisal of exploration by other | •The first prospecting work that refers to the Chuscal prospect was recorded in |
| done by other | parties. |
1986 by the author Michael GA Hill who reported an average of 4ppm to 5ppm |
| parties | gold in the sector "Loma El Guerrero", which today is known as Chuscal Alto. | |
| There was no detailed geological description or geological map produced. The | ||
| effects of hydrothermal brecciation in dioritic intrusive rocks was noted. | ||
| •In 1995, a Canadian TVX listed company, Minera de Colombia S.A., conducted | ||
| a study in the Quinchia district, focusing on the prospects known at the time | ||
| (Miraflores, La Cumbre, Chuscal and a locality that today is Tesorito). For the | ||
| Chuscal area, three locations with gold mineralization being worked by artisanal | ||
| miners were described, which comprise quartz+limonite veins within pyritic | ||
| argillic alteration zones. | ||
| •AGAC commissioned a brief reconnaissance survey in 2004 from which their | ||
| geologist reported the types of alteration and mineralization were similar to | ||
| AGAC’s model of “Gold-Rich Porphyry Deposits”. | ||
| •AGAC conducted another prospect assessment in March 2005 from which it | ||
| was reported that artisanal miners were working auriferous quartz-pyrite | ||
| stockwork veins, some within porphyritic andesites, that had intruded into the | ||
| Ira Monzonite. The mineralized veins had a strong structural control trending | ||
| NW-SE. | ||
| •AGAC commissioned various reconnaissance exploration campaigns from | ||
| 2005 to 2006 principally focusing on the assessment of the geology exposed in | ||
| the shallow underground openings being developed by artisanal miners. | ||
| •In 2012, Seafield undertook a grid-based C-horizon soil geochemical survey | ||
| and conducted underground rock-chip channel sampling over the Chuscal area | ||
| and within the Guayacanes artisanal workings respectively. | ||
| •In 2013, AGAC commissioned a systematic saprolite and rock-chip sampling | ||
| and mapping program from which it was concluded that the mineralization at | ||
| Chuscal had both porphyry (Au-Cu-Mo) and epithermal (AS-Sb) affinities, with | ||
| phyllic alteration overprinting earlier potassic alteration of porphyritic rocks that | ||
| had intruded an older Monzonite. | ||
| •In 2015, AGAC conducted additional mapping, saprolite and rock-chip sampling | ||
| detailing the area previouslymapped and sampled. |
15
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| •In 2019, on completion of the JV Agreement with AGAC, Metminco compiled all | ||
| available historical data with the AGAC database and carried out a detailed re- | ||
| interpretation of the integrated geochemistry and geophysical data generating | ||
| an exploration model used to propose the current drilling program. | ||
| Geology | • Deposit type, geological setting and style of mineralisation. | •The Chuscal gold zone is associated with two diorite stocks probably of |
| Miocene age, that have intruded into the large, Cretaceous-age Irra Monzonite. | ||
| At Chuscal the formation and emplacement of the stocks generated a | ||
| significant gold rich hydrothermal event, that together produced a NW | ||
| orientated, 900m by 500m zone (+100ppb Au in soils) within which anomalous | ||
| rock samples have been collected by AGAC (refer Figure 2 in MNC ASX | ||
| release dated 6 December 2018). The rock chip sampling defined a Central | ||
| Zone of 600m by 240m (183 samples) where the average grade of samples is | ||
| 2.66g/t Au (uncut) or 1.94g/t Au (cut2). This is incorporated within a broader | ||
| area (Main Zone) of 900m by 530m (289 samples) where the average grade of | ||
| samples is 1.79g/t Au (uncut) or 1.33g/t Au (cut2). | ||
| • Note2: The cut samples were capped at 20g/t Au which affected 6 | ||
| samples including one assaying 54 g/t Au. In neither case was a lower cut | ||
| applied. For the Central & Main zones respectively, the average includes | ||
| 53 and 115 samples at <0.2g/t. | ||
| •The underground artisanal workings occur within the Central Zone, at a depth | ||
| of approximately 70m below the ridge, indicating the continuation of | ||
| mineralisation at shallow depths. The multi-element rock-chip underground | ||
| channel sample results indicate two dominant styles of mineralization. A | ||
| probable early-stage stockwork-disseminated porphyry-style mineralization and | ||
| a late stage high grade vein style (possible epithermal overprint). The porphyry- | ||
| style returned average grades of 1.5 g/t Au and the epithermal-style veins | ||
| average 8 g/t Au (cut3). | ||
| • Note3: The cut underground rock-chip channel samples were capped at | ||
| 20 g/t Au. | ||
| •The soil and rock chip anomalies remain open to the north. | ||
| Drill hole | • A summary of all information material to the understanding | •This declaration covers the start of the maiden drill program at Chuscal. |
| Information | of the exploration results including a tabulation of the following information for all Material drill holes: |
Hole Easting Northing RL (m) Azimuth Dip EOH |
o easting and northing of the drill hole collaro elevation or RL (Reduced Level – elevation above sea |
CHDDH001 423456 582685 1310 060º -60º 452m |
|
| level in metres) of the drill hole collar | CHDDH002 423564 582609 1260 345º -60º 412m |
|
o dip and azimuth of the hole |
||
o down hole length and interception depth |
16
| Criteria | JORC Code explanation | Commentary | ||
|---|---|---|---|---|
o hole length. |
CHDDH003 423425 583071 |
1226 216º |
-50º 400m est. |
|
| • If the exclusion of this information is justified on the basis | ||||
| that the information is not Material and this exclusion does | ||||
| not detract from the understanding of the report, the | ||||
| Competent Person should clearly explain why this is the | ||||
| _case. _ | ||||
| Data | • In reporting Exploration Results, weighting averaging | •The summary metrics for the underground rock-chip channel sample results | ||
| aggregation | techniques, maximum and/or minimum grade truncations (eg | have been averaged and reported as |
cut values. These have been previously | |
| methods | cutting of high grades) and cut-off grades are usually | reported to ASX. | ||
| Material and should be stated. | •No metal equivalent values have been stated. | |||
| • Where aggregate intercepts incorporate short lengths of high | ||||
| grade results and longer lengths of low grade results, the | ||||
| procedure used for such aggregation should be stated and | ||||
| some typical examples of such aggregations should be | ||||
| shown in detail. | ||||
| • The assumptions used for any reporting of metal equivalent | ||||
| _values should be clearly stated. _ | ||||
| Relationship | • These relationships are particularly important in the reporting | •The results reported in this announcement are considered to be of an early |
||
| between | of Exploration Results. | stage in the exploration of the project. | ||
| mineralisation | • If the geometry of the mineralisation with respect to the drill |
•Mineralisation geometry is not accurately known as the exact number, | ||
| widths and | hole angle is known, its nature should be reported. | orientation and extent of mineralised structures are not yet determined. | ||
| intercept lengths |
• If it is not known and only the down hole lengths are reported, there should be a clear statement to this effect (eg |
|||
| _‘down hole length, true width not known’). _ | ||||
| Diagrams | • Appropriate maps and sections (with scales) and tabulations | •Geological map showing the location of CHDH-001, 002 & 003 and key | ||
| of intercepts should be included for any significant discovery | exploration results over the Chuscal Prospect are shown | in Figure 2 within the | ||
| being reported These should include, but not be limited to a | main body of this announcement. | |||
| plan view of drill hole collar locations and appropriate | ||||
| _sectional views. _ | ||||
| Balanced | • Where comprehensive reporting of all Exploration Results is | •n/a | ||
| reporting | not practicable, representative reporting of both low and high | |||
| grades and/or widths should be practiced to avoid | ||||
| _misleading reporting of Exploration Results. _ | ||||
| Other | • Other exploration data, if meaningful and material, should be | •Figure 1 of the press release of 30thOctober 2019, presents an image of the |
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| substantive | reported including (but not limited to): geological | analytical signal from the ground magnetic survey recently completed. The | ||
| exploration | observations; geophysical survey results; geochemical | image reflects the susceptibility variations mentioned in this press release at the | ||
| data | survey results; bulk samples – size and method of treatment; | RL level of 1,150m (approximately 170m beneath the drill hole collar). No other |
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| metallurgical test results; bulk density, groundwater, | exploration data that is considered meaningful and material has been omitted | |||
| geotechnical and rock characteristics; potential deleterious |
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| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| or contaminating substances. | from this report. | |
| Further work | • The nature and scale of planned further work (eg tests for | •The preliminary drill program consists of approximately 2,400m in 6 to 8 holes |
| lateral extensions or depth extensions or large-scale step- | to evaluate the geology, alteration and mineralization styles along the Chuscal | |
| out drilling). | trend. As a maiden drill program, the project information obtained during the | |
| • Diagrams clearly highlighting the areas of possible | drilling will be used to refine the Exploration Model providing a more resilient | |
| extensions, including the main geological interpretations and | base for decision making. | |
| future drilling areas, provided this information is not | •The objective of the program is to provide a guide to the mineralization potential | |
| commercially sensitive. | of the system, both in terms of potential grade and volume, to guide resource | |
| targeted drilling in a second phase drilling program. |
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