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ENTERPRISE METALS LIMITED — Capital/Financing Update 2021
Dec 1, 2021
64857_rns_2021-12-01_80cbf870-113e-402b-8be3-1e97aedcccc0.pdf
Capital/Financing Update
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ACN 123 567 073 ASX Release 2 December 2021
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Ennuin Gold Target Selected for RC Drill Testing at Bullfinch North WA
-
Multiple shallow high-grade gold intersections targeted for follow-up drilling
-
Gold from surface to 50 metres remains untested at depth
-
Initial phase of six ~150 metre RC drill holes to be undertaken by Enterprise at Ennuin
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Further high priority drill targets identified at the Scorpio, Hughes and Rainbird prospects
Enterprise Metals (ENT) (“Enterprise” or the “Company”) is pleased to advise that following a comprehensive data compilation and interpretation by consultants Terra Resources Pty Ltd, (refer ENT: ASX 30 September 2021) the Company has field checked, surveyed and prioritised 4 targets (prospects) for reverse circulation (RC) drill testing. These targets are Ennuin (Target 48), Scorpio (Target 36), Hughes (Target 27) and Rainbird, (Target 32). Ennuin is the first target to be drill tested with six ~150m deep RC holes.
Between 1989 and 1993 rotary airblast (RAB) and limited RC follow up drilling was undertaken to test below several of the shallow Ennuin historic gold workings. Mapping and drilling identified three axial plane shear zones with significant gold drill intercepts. To date there has been a lack of follow up RC drilling to test these mineralised shear zones at depth. Significant results using a 20g/t Au thickness product are in Table 1 below.
Table 1. Target 48 - Ennuin Prospect - Gold Intercepts +20gm x metre Intersections
| Hole ID |
Hole Type |
Local Section |
From (m) |
To (m) |
Interval (m) |
Grade (g/t Au) |
Au (gm x thickness) |
|---|---|---|---|---|---|---|---|
| ERC010 | RC | 17240N | 21 | 28 | 7 | 4.35 | 21.32 |
| ERB012 | RAB | 17240N | 0 | 30 | 30 | 1.54 | 46.2 |
| ERB012 | RAB | 17240N | 15 | 30 | 15 | 2.39 | 35.38 |
| ERC007 | RC | 17200N | 41 | 54 | 13 | 1.54 | 20.02 |
| ERC007 | RC | 17200N | 43 | 50 | 7 | 2.39 | 16.73 |
| ERB003 | RAB | 17400N | 25 | 30 | 5* | 6.11 | 30.55 |
- End of hole
TARGET 48 Ennuin
The principal lithologies within the Ennuin prospect area include metamorphosed carbonated Archean tholeiitic volcanic rocks (meta-basalt, meta-gabbros and dolerites) with subordinate siliceous Banded Iron Formation and komatiites. Foliated Archean granitic rocks flank the NNW trending greenstone belt . Refer Figure 1.
The historical Ennuin gold workings occur on the axis of an interpreted anticline, with gold anomalism continuing to the north along the axis and flanks of the anticline. The gold mineralisation in the Ennuin workings occurs within lenticular quartz reefs within sheared and brecciated fault zones within meta-basalt and amphibolitic schists.
Suite 5, 44 Kings Park Road, West Perth, Western Australia 6005. PO Box 1014, West Perth 6872 Tel: 08 6381 0392 Email: [email protected] www.enterprisemetals.com.au
ENTERPRISE METALS LIMITED Ennuin Prospect
Historical production from the Star of Ennuin and Ennuin Star -Morning Glory mines are shown in Table 2 below.
Table 2. Gold Production from the Historic Ennuin Mines
| Mining Subgroup |
Ore Treated (t) |
Gold Produced (kg) |
Av. Grade (g/t) |
|---|---|---|---|
| Star of Ennuin | 600 | 21.7 | 36.2 |
| Ennuin Star–Morning Glory | 590 | 16.2 | 27.5 |
Figure 1. Ennuin: Geological Interpretation
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Figure 2. Ennuin: Image of 1[st] Vertical Derivative of Total Magnetic Intensity with Gold Soil Image Superimposed (Historical Gold Soil Sampling - P77/3324)
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ENTERPRISE METALS LIMITED Ennuin Prospect
Figure 3 . Ennuin: Image Showing Outcropping Geology & Historic Local Grid Drill Lines, RC Drill Collars & Polaris Auger Soil Locations
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Figure 4. Local Cross Section 17240mN, Centred on GDA94. 6594540N 060[0,] +/-10m window
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ENTERPRISE METALS LIMITED Ennuin Prospect
Figure 5. Local Cross Section 17210mN, Centred on GDA94. 6594430N 0600, +/-10m window
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Figure 6. Local Cross Section 17400mN, Centred on GDA94. 6594680N 060[0,] +/-10m window
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ENTERPRISE METALS LIMITED Ennuin Prospect
Exploration History
In 1988-89, Broken Hill Metals NL (BHM) joint ventured into tenements over the old Ennuin gold workings held by Ascot Holdings Pty Ltd. BHM undertook detailed 1:5,000 scale geological mapping and collected 511 soil samples and 41 rockchip samples for Au and base metal analysis on M77/182, in preparation for drill testing. The soil samples were assayed for gold and base metals and highlighted a number of anomalies called the “Payne” anomalies. (Edwards 1989)
In 1990 BHM drilled 32 shallow (~30m) RAB holes over the current Ennuin Prospect. (ERB001-0019, ERB023-026, ERB030-034 and ERB059-062). Initially 5 metre composite samples were assayed, and mineralised composites were subsequently assayed on a 1 metre basis. ( Edwards, 1990)
In 1992 BHM drilled 9 RC holes (ERC001-009, total 692m) to follow up the 1989 RAB hole results. A further 5 RC holes (ERC010 - 015, total 270m) were drilled, 3 of which are on the current Ennuin Prospect. (Edwards 1992)
Table 3. Target 48 - Ennuin Prospect – Significant BHM Shallow RC Gold Intercepts
| Hole ID |
Max Depth(m) |
From (m) |
To (m) |
Intercept **Auppm ** |
|---|---|---|---|---|
| ERC002 ERC005 and ERC005 and and ERC007 and and and ERC008 ERC009 and ERC010 and ERC011 |
78 | 18 | 19 | [email protected] |
| 80 | 28 | 30 | [email protected] | |
| 80 | 32 | 33 | [email protected] | |
| 80 | 47 | 50 | [email protected] | |
| 80 | 58 | 59 | [email protected] | |
| 80 | 61 | 66 | [email protected] | |
| 90 | 29 | 33 | [email protected] | |
| 90 | 43 | 50 | [email protected] | |
| 90 | 53 | 54 | [email protected] | |
| 90 | 67 | 68 | [email protected] | |
| 90 | 63 | 64 | [email protected] | |
| 65 | 26 | 27 | [email protected] | |
| 65 | 31 | 32 | [email protected] | |
| 50 | 13 | 16 | 3m @ 1.62 ppm | |
| 50 | 21 | 28 | [email protected] | |
| 50 | 12 | 13 | [email protected] |
Table 4. Target 48 - Ennuin Prospect – Significant BHM Shallow RAB Gold Intercepts
| Hole ID |
Max Depth(m) |
From (m) |
To (m) |
Intercept **Auppm ** |
|---|---|---|---|---|
| ERB003 | 30 | 25 | 30 | [email protected] |
| ERB004 | 30 | 0 | 5 | [email protected] |
| ERB012 | 30 | 0 | 30 | [email protected] |
| and | 30 | 15 | 30 | [email protected] |
| ERB015 | 30 | 20 | 22 | [email protected] |
| ERB030 | 30 | 11 | 15 | 4m @ 1.25 ppm |
| and | 30 | 16 | 18 | 2m @ 1.13 ppm |
| and | 30 | 22 | 24 | 2m @ 1.39ppm |
| ERB031 | 30 | 4 | 5 | 1m @ 6.21 ppm |
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ENTERPRISE METALS LIMITED Ennuin Prospect
Between 2004 and 2007 Polaris Metals NL undertook detailed geological mapping, rock chip sampling and auger soil sampling. 176 auger soil samples were taken on four infill patterns. Sample line spacing was 80m x 40m. All auger soil samples were analysed for Au (B/ETA, 1 ppb), As (B/AAS, 10 ppm), Cu (B/AAS, 1 ppm), and Ni (B/AAS, 1 ppm). Peak soil assay results were 1,193 ppb Au, 9,345 ppm As, 207 ppm Cu and 880ppm Ni
– Background Bullfinch North Exploration Project
In May 2020 Enterprise entered into a 2 year “ Option to Purchase ” phase of a Binding Terms Sheet covering the Bullfinch North Project in the Southern Cross Greenstone Belt of WA. The tenement package is owned by Nickgraph Pty Ltd. A separate 2 year option agreement was negotiated over the western margin of the greenstone belt and Lake Deborah with Mr Peter Gianni.
The project area stretches from Bullfinch in the south to Trough Well in the north and covers approximately 50 strike km’s (232 km[2] ) of granted tenements over Archaean greenstone lithologies prospective for orogenic gold deposits, high-grade massive sulphide nickel-copper deposits and lithium. Refer Figure 7.
Figure 7. Bullfinch North Project, Optioned Tenements over Simplified Geology
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ENTERPRISE METALS LIMITED Ennuin Prospect
The Southern Cross Greenstone Belt hosts more than 150 known gold deposits, which have collectively produced more than 10 million ounces of gold. The major gold deposits such as Frasers at Southern Cross, Marvel Loch, Nevoria, Great Victoria, Yilgarn Star and Copperhead (at Bullfinch) have produced the majority of these ounces. The great majority of these ounces were mined from deposits south of Bullfinch. Refer Figure 8.
Figure 8. Location of Bullfinch North Project In Southern Cross Greeenstone Belt
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By comparison, competitor gold exploration north of Bullfinch was largely focused on relatively shallow drill testing of small historic outcropping gold workings, which failed to find any major new deposits. Other impediments to successful exploration included transported overburden on the eastern and western flanks of the belt and the previous fragmented tenement ownership.
This ASX Announcement has been approved in accordance with the Company’s published continuous disclosure policy and authorised for release by the Company’s Board of Directors.
Further information, contact:
Dermot Ryan - Director
Ph: +61 8 6381 0392 [email protected]
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ENTERPRISE METALS LIMITED Ennuin Prospect
Competent Person Statement
The information in this report that relates to Exploration Activities and Results is based on information compiled by Mr Dermot Ryan, who is an employee of Montana Exploration Services Pty Ltd and a Director and security holder of the Company. Mr Ryan is a Fellow of the Australasian Institute of Mining and Metallurgy and a Member of the Australian Institute of Geoscientists and has sufficient experience of relevance to the styles of mineralisation and the types of deposits under consideration, and to the activities undertaken, to qualify as a Competent Person as defined in the 2012 Edition of the Joint Ore Reserves Committee (JORC) Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves. Mr Ryan consents to the inclusion in this report of the matters based on information in the form and context in which it appears.
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ENTERPRISE METALS LIMITED Ennuin Prospect
Appendix 1: Historical Drill Hole Collar Details
| Hole ID |
BHM Local East |
BHM Local North |
GDA94_50 East |
GDA94_50 North |
RL | Depth (m) |
Hole Azimuth |
Hole Dip |
|---|---|---|---|---|---|---|---|---|
| ERB001 | 3744 | 17400 | 688292 | 6594651 | 391 | 16 | 60 | -60 |
| ERB002 | 3759 | 17400 | 688302 | 6594660 | 394 | 19 | 60 | -60 |
| ERB003 | 3797 | 17400 | 688335 | 6594677 | 398 | 30 | 60 | -60 |
| ERB004 | 3807 | 17399 | 688345 | 6594682 | 399 | 30 | 60 | -60 |
| ERB005 | 3893 | 17401 | 688420 | 6594727 | 401 | 21 | 60 | -60 |
| ERB006 | 3905 | 17400 | 688430 | 6594732 | 400 | 30 | 60 | -60 |
| ERB007 | 3884 | 17240 | 688492 | 6594580 | 405 | 30 | 60 | -60 |
| ERB008 | 3871 | 17240 | 688481 | 6594573 | 405 | 30 | 60 | -60 |
| ERB009 | 3859 | 17240 | 688470 | 6594567 | 404 | 30 | 60 | -60 |
| ERB010 | 3846 | 17240 | 688457 | 6594560 | 403 | 30 | 60 | -60 |
| ERB011 | 3834 | 17240 | 688445 | 6594550 | 402 | 15 | 60 | -60 |
| ERB012 | 3800 | 17243 | 688415 | 6594541 | 399 | 30 | 60 | -60 |
| ERB013 | 3790 | 17243 | 688404 | 6594537 | 397 | 30 | 60 | -60 |
| ERB014 | 3669 | 17240 | 688299 | 6594475 | 401 | 30 | 60 | -60 |
| ERB015 | 3640 | 17240 | 688273 | 6594462 | 399 | 30 | 60 | -60 |
| ERB016 | 3628 | 17239 | 688262 | 6594450 | 399 | 30 | 60 | -60 |
| ERB017 | 3554 | 17239 | 688197 | 6594419 | 390 | 30 | 60 | -60 |
| ERB018 | 3796 | 17080 | 688487 | 6594395 | 412 | 15 | 60 | -60 |
| ERB019 | 3501 | 17080 | 688225 | 6594255 | 396 | 30 | 60 | -60 |
| ERB023 | 3805 | 10080 | 688497 | 6594403 | 412 | 19 | 60 | -60 |
| ERB024 | 3880 | 17080 | 688564 | 6594439 | 409 | 30 | 60 | -60 |
| ERB025 | 3889 | 17078 | 688873 | 6594441 | 391 | 19 | 60 | -60 |
| ERB026 | 3832 | 16920 | 688599 | 6594275 | 411 | 15 | 60 | -60 |
| ERB030 | 3627 | 17175 | 688292 | 6594398 | 390 | 30 | 60 | -60 |
| ERB031 | 3872 | 17320 | 688292 | 6594398 | 400 | 30 | 60 | -60 |
| ERB032 | 3881 | 17320 | 688440 | 6594644 | 404 | 30 | 60 | -60 |
| ERB033 | 3699 | 17320 | 688448 | 6594648 | 405 | 30 | 60 | -60 |
| ERB034 | 3691 | 17320 | 688288 | 6594560 | 392 | 29 | 60 | -60 |
| ERB059 | 3617 | 17176 | 688279 | 6594556 | 392 | 30 | 60 | -60 |
| ERB060 | 3841 | 17160 | 688490 | 6594490 | 403 | 11 | 60 | -60 |
| ERB061 | 3830 | 17160 | 688482 | 6594448 | 405 | 30 | 60 | -60 |
| ERB062 | 3819 | 17160 | 688472 | 6594480 | 403 | 30 | 60 | -60 |
| ERC001 | 3792 | 17400 | 688332 | 6594675 | 398 | 33 | 60 | -60 |
| ERC002 | 3763 | 17400 | 688305 | 6594660 | 394 | 78 | 60 | -60 |
| ERC003 | 3743 | 17400 | 688290 | 6594650 | 392 | 75 | 60 | -60 |
| ERC004 | 3840 | 17240 | 688452 | 6594560 | 403 | 80 | 60 | -60 |
| ERC005 | 3795 | 17240 | 688415 | 6594536 | 399 | 80 | 60 | -60 |
| ERC006 | 3780 | 17240 | 688397 | 6594530 | 397 | 100 | 60 | -60 |
| ERC007 | 2632 | 17200 | 688287 | 6594435 | 402 | 90 | 60 | -60 |
| ERC008 | 3673 | 17200 | 688319 | 6594455 | 403 | 90 | 240 | -60 |
| ERC009 | 3827 | 17400 | 688360 | 6594692 | 401 | 65 | 240 | -60 |
| ERC010 | 3825 | 17240 | 688443 | 6594550 | 402 | 50 | 240 | -60 |
| ERC011 | 3657 | 17200 | 688304 | 6594445 | 403 | 50 | 240 | -60 |
| ERC012 | 3812 | 17400 | 688347 | 6594685 | 399 | 75 | 240 | -60 |
ERB: BHM RAB holes ERC: BHM RC Holes
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ENTERPRISE METALS LIMITED Ennuin Prospect
References
Denig, W., 2000, Geology of the Ennuin, Trough Well Greenstone Belt, Southern Cross Province WA. Western Areas NL Report (unpublished).
Edwards, N. M., 1989, Ennuin Project, Annual Report for the period 06/04/1988 to 05/04/1989, M77/182. Broken Hill Metals NL (unpublished).
Edwards, N. M., 1990, Ennuin Project, Annual Report for the period 01/01/1989 to 01/01/1990, M77/182, 291 & 293. Broken Hill Metals NL (unpublished).
Edwards, N. M., 1992, Ennuin Project Annual Report for the period 01/05/1991 to 01/05/1992, M77/182 & 291, P77/2086-89, 2472 & 2564, Broken Hill Metals NL Report (unpublished).
Edwards, N. M., 1993: Ennuin Project Annual Report for the period ending 01/11/1993, M77/182, & 291, M77/596, P77/2734-2735, Broken Hill Metals NL Report (unpublished).
Jeffries, D. J., 1997, Ennuin Project Annual Report, P77/2734-2735, M77/182, M77/291 & M77/596, 28 November 1995 to 27 November 1996, Barcfin Pty Ltd Report (unpublished).
Keats, W., 1991: Geology and Gold Mines of the Bullfinch-Parker Range Region, Southern Cross Province, Geological survey of Western Australia, Report No 28.
Kettlewell, D. C., 2005, Ennuin Project, Combined Annual Report for the Period 31 October 2004 to 30 October 2005 for P77/3324, P77/3326, and P77/3327, Polaris Metals NL Report. No. 2005-30 Polaris Metals NL (unpublished).
Kettlewell, D., 2006, Ennuin Project P77/3324,3326-3327, Combined Annual Report C51/2005 for the Period 31 October 2005 to 30 October 2006, (Polaris Report No. 2006-28, Jackson). Polaris Metals NL (unpublished).
Kettlewell, D., 2008, Ennuin Project Surrender Report for The Period 31 October 2003 - 30 October 2007 for P77/3324 - P77/3327. Polaris Metals NL (unpublished)
Kuehnapfel, C., 2005, (September): Ennuin Exploration Report, Tenements: P77/3324, P77/3326, P77/3327, E77/485, Polaris Metals NL Report No 2005-16 (unpublished).
Kuehnapfel, C., 2005, (August): Update on Ennuin Prospect Soil Auger Geochemistry, Polaris Metals NL Report (unpublished).
Matheson, R.S., 1947, The Mining Groups of the Yilgarn Goldfield North of the Great Eastern Railway: West. Australia. Geol. Survey, Bul1. 101
Polaris Metals NL, 2005, Ennuin Tenement Group, Annual report for the period 31/10/03 - 30/10/04, Ennuin Tenement Group, for P77/3324, P77/3326, P77/3327, Jackson Sheet, Polaris Metals NL (unpublished)
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ENTERPRISE METALS LIMITED Ennuin Prospect
JORC Code, 2012 Edition – Table 1 Report Ennuin Prospect-Bullfinch North Gold Project, WA
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
| Criteria | Commentary |
|---|---|
| Sampling techniques |
• No drilling or geochemical sampling of targets undertaken by Enterprise to date. |
| Drilling techniques |
• No drilling undertaken by Enterprise to date. |
| Drill sample recovery |
• No drilling undertaken by Enterprise to date. |
| Logging | • No drilling undertaken by Enterprise to date. |
| Sub-sampling techniques and sample preparation |
• No drilling undertaken by Enterprise to date. |
| Quality of assay data and laboratory tests |
• No drilling undertaken by Enterprise to date. |
| Verification of sampling and assaying |
• No drilling undertaken by Enterprise to date. |
| Location of data points |
• No drilling undertaken by Enterprise to date. |
| Data spacing and distribution |
• No drilling undertaken by Enterprise to date. |
| Orientation of data in relation to geological structure |
• No drilling undertaken by Enterprise to date. |
| Sample security |
• No drilling undertaken by Enterprise to date. |
| Audits or reviews |
• No drilling undertaken by Enterprise to date. |
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Section 2 Ennuin Prospect-Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this section.)
| Criteria | Commentary | |
|---|---|---|
| Mineral tenement and land tenure status |
• The Ennuin Prospect is located within Exploration Licence 77/2325. • E77/2325 was granted on 5 April 2019 for 5 years. The tenement is held by Nickgraph Pty Ltd. • Enterprise entered into a 2 year Option to Purchase Agreement with Nickgraph Pty Ltd on 25 May 2020, which expires on 24 May 2022, unless extended for a further two years until 24 May 2026. • If Enterprise Metals exercises the option to purchase the Project for cash and shares, then Enterprise will pay Nickgraph 1.5% of the value of Minerals obtained as a result of production from hard rock mining, capped at $1million. |
|
| Exploration done by other parties |
Ennuin Prospect • In 1988-89, BHM joint ventured into tenements over the old Ennuin workings held by Ascot Holdings Pty Ltd. BHM’s objective was to discover a large tonnage open pitable gold resource. • BHM undertook detailed 1:5,000 scale geological mapping and collected 511 soil samples and 41 rockchip samples for Au and base metal analysis on M77/182, in preparation for drill testing. The soil samples were assayed for gold and base metals and highlighted a number of anomalies called the “Payne” anomalies. (Edwards 1989) • In 1990, BHM drilled 32 shallow (~30m) RAB holes over the current Ennuin Prospect. (called Payne 1 Anomaly) (ERB001-0019, ERB023-026, ERB030-034 and ERB059- 062) Initially 5 metre composite samples were assayed, and mineralised composites were subsequently assayed on a 1 metre basis. (Edwards, 1990) • In 1992, BHM drilled 9 RC holes (ERC001-009, total 692m) to follow up the 1989 RAB hole results. A further 5 RC holes (ERC010-015, total 270m) were drilled, 3 of which are on the current Ennuin Prospect. (BHM ceased to exist in 1992, due to losses at its Southern Cross Corinthia gold mine)(Edwards 1992) • BHM’s tenements were eventually passed to Barcfin Pty Ltd, which conducted aeromagnetic and geological interpretation, gridding and geochemical sampling (152 x - 2mm soil samples and 14 rock chip samples. Five shallow RAB holes (ENRB001- ENRB005, total 212m) were drilled north along strike of BHM’s holes, with poor results. ENDD01, a pre-collar for a diamond drill hole, was abandoned at 60m, and diamond hole ENDD002 appears to have been drilled westwards away from the main line of workings. • _Following the surrender of M77/182, Vernon Strange in 2000_marked out P77/3324 over the Ennuin prospect. Strange optioned this tenement and others to Polaris Metals NL (Polaris) which listed on the ASX in 2004. • At Ennuin, Polaris undertook detailed geological mapping, rock chip sampling and auger soil sampling between 2003 and 2007. 176 auger soil samples were taken on four infill patterns. Sample line spacing was 80m x 40m. All auger soil samples were analysed for Au (B/ETA, 1 ppb), As (B/AAS, 10 ppm), Cu (B/AAS, 1 ppm), and Ni (B/AAS, 1 ppm). Peak assays returned were 1,193 ppb Au, 9345 ppm As, 207 ppm Cu and 880ppm Ni. • These anomalies were traced for almost the entire length of P77/3324 and a further 1,300m to the SW into neighbouring E77/485 (part of the BNJV group of tenements). The term‘Ennuin Shear Zone’ was adopted to describe this litho-structural zone. The Ennuin Shear Zone was interpreted to be part of a series of ESE dipping thrust faults which were inferred to occur along the length of the principally sinstral Southern Cross Greenstone Belt. • Polaris reported that most of the gold workings occurred on the axis of an interpreted anticline, with sporadic gold anomalism continuing to the north along the axis and flanks of the anticline. They considered that the gold anomalism might represent an extension of the known gold mineralisation to the north which had not been previously tested. Polaris drilled 4 RAB holes (ENRB007-010, total 106m) ) over soil anomalies north of Enterprise’s current area of interest, with no positive results. |
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| Geology | • The Project lies within the Southern Cross Greenstone Belt, a tract of slightly- to strongly metamorphosed rocks that were initially widespread mafic and ultramafic volcanic rocks, sedimentary rocks, and local felsic volcanic rocks. • The overall stratigraphic column has been divided into two sequences (Griffin, 1990). The lower stratigraphic sequence consists of basaltic and komatiitic volcanics with banded iron formations and cherty rocks, through which clastic sedimentary rocks become increasingly common upwards. • Mafic and ultramafic rocks conformably intrude this sequence. Unconformably overlying the lower sequence in the northern part of the belt is a thick clastic sedimentary unit, overlain by subaerial volcanic rocks with chemically related high- level (sub-volcanic) intrusive rocks. The margins of the greenstone belt are defined by occurrences of gneissic and granitoid igneous rocks. Contacts between greenstone and granitoid/gneissic provinces are invariably sheared, and this factor, together with generally poor exposure obscures the original relationships between the two types of terrane. |
• The Project lies within the Southern Cross Greenstone Belt, a tract of slightly- to strongly metamorphosed rocks that were initially widespread mafic and ultramafic volcanic rocks, sedimentary rocks, and local felsic volcanic rocks. • The overall stratigraphic column has been divided into two sequences (Griffin, 1990). The lower stratigraphic sequence consists of basaltic and komatiitic volcanics with banded iron formations and cherty rocks, through which clastic sedimentary rocks become increasingly common upwards. • Mafic and ultramafic rocks conformably intrude this sequence. Unconformably overlying the lower sequence in the northern part of the belt is a thick clastic sedimentary unit, overlain by subaerial volcanic rocks with chemically related high- level (sub-volcanic) intrusive rocks. The margins of the greenstone belt are defined by occurrences of gneissic and granitoid igneous rocks. Contacts between greenstone and granitoid/gneissic provinces are invariably sheared, and this factor, together with generally poor exposure obscures the original relationships between the two types of terrane. |
• The Project lies within the Southern Cross Greenstone Belt, a tract of slightly- to strongly metamorphosed rocks that were initially widespread mafic and ultramafic volcanic rocks, sedimentary rocks, and local felsic volcanic rocks. • The overall stratigraphic column has been divided into two sequences (Griffin, 1990). The lower stratigraphic sequence consists of basaltic and komatiitic volcanics with banded iron formations and cherty rocks, through which clastic sedimentary rocks become increasingly common upwards. • Mafic and ultramafic rocks conformably intrude this sequence. Unconformably overlying the lower sequence in the northern part of the belt is a thick clastic sedimentary unit, overlain by subaerial volcanic rocks with chemically related high- level (sub-volcanic) intrusive rocks. The margins of the greenstone belt are defined by occurrences of gneissic and granitoid igneous rocks. Contacts between greenstone and granitoid/gneissic provinces are invariably sheared, and this factor, together with generally poor exposure obscures the original relationships between the two types of terrane. |
|---|---|---|---|
| Drill hole Information | • Open File drill hole data has been captured for the Ennuin Prospect. |
||
| Data aggregation methods |
• Not relevant at this stage of exploration. |
||
| Relationship between mineralisation widths and intercepts |
• Not relevant at this stage of exploration. |
||
| Diagrams | • Refer to Figures in main bodyof this report. |
||
| Balancedreporting | • Relevant geological and drilling data has been compiled and assessed and are considered by Enterprise to be sufficient for RC drill targeting. |
||
| Other substantive exploration data |
• • • |
The geophysical datasets used by Terra Resources were sourced from the GSWA magnetic, radiometric and gravity grids. The magnetic data was derived from the WA_20m_Mag_Merge_v1_2018 magnetic grid of Western Australia. In particular, a1997 Finders Gold high resolution low level aeromagnetic survey over the Golden Valley area by UTS Geophysics. The equipment used included a Scintrex Caesium Vapour CS-2 Magnetometer guided by real-time GPS navigation. The plane utilised was a Fletcher (FU24-950). Survey specifications are tabled below: Flight line direction 090 - 270 (AMG) Flight line spacing 50m Tie line direction 000-180 (AMG) Tie line spacing 500m Mean surveyheight 40-50m Recordinginterval 10Hz(0.1 seconds) In 2011 Western Areas NL commissioned Thomson Aviation Pty Ltd to undertake an extensive airborne magnetic–radiometric survey over a large portion of the North Bullfinchproject area.Surveyspecifications are tabled below: Flight line direction East–west Flight line spacing 100m Tie line direction North–south Tie line spacing 1000 m Total line kilometres 6578 Mean terrain clearance 50 m Aircraft Cessna Series 210L,VH‐THS Magnetometer model Geometrics G822A Radar altimeter KingKR 495B Gamma‐ray detectorsystem Radiations Solutions Inc. RSX |
|
| Flight line direction | East–west | ||
| Flight line spacing | 100m | ||
| Tie line direction | North–south | ||
| Tie line spacing | 1000 m | ||
| Total line kilometres | 6578 | ||
| Mean terrain clearance | 50 m | ||
| Aircraft | Cessna Series 210L,VH‐THS | ||
| Magnetometer model | Geometrics G822A | ||
| Radar altimeter | KingKR 495B | ||
| Gamma‐ray detectorsystem | Radiations Solutions Inc. RSX |
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