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LEGEND MINING LIMITED — Regulatory Filings 2012
Apr 16, 2012
65223_rns_2012-04-16_518334d0-e04c-4b97-92ad-b9095ddecb3a.pdf
Regulatory Filings
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ASX:LEG
17 April 2012 ASX Announcement
FURTHER SIGNIFICANT ASSAY RESULTS
FROM PHASE 1 DRILLING AT MELOMBO EAST
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Iron assay results for seven drillholes return significant grades/thicknesses
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Results include: 75.9m @ 33.68% Fe, 62.0m @ 28.71% Fe
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Five of the seven drillholes ended in mineralisation
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Phase 2 drilling programme planned to commence late this quarter
Legend Mining Limited (“Legend”) is pleased to announce assay results from a further seven diamond drillholes at the Melombo East Prospect in Cameroon West Africa, see Figure 1. These results represent all outstanding drillhole assays from the Phase 1 diamond drilling programme, which comprised 34 holes (DH042-075) for 2,349m.
Significant iron grades and thicknesses of magnetite bearing gneiss were returned including;
DH054: 54.4m @ 23.92% Fe from 46.1m to end of hole.
DH055: 58.5m @ 21.13% Fe from 42.0m to end of hole.
DH058: 47.3m @ 24.29% Fe from 49.5m.
DH060: 62.0m @ 28.71% Fe from 42.9m to end of hole.
DH061: 55.6m @ 28.96% Fe from 1.3m.
DH064: 73.5m @ 23.69% Fe from 27.0m to end of hole. DH066: 75.9m @ 33.68% Fe from 1.2m to end of hole.
Legend Managing director Mark Wilson said:
“These assays are consistent with previous drill results from Melombo East, both in grade and thickness. They also provide initial indication of continuity of mineralisation, with further closer spaced drillholes planned along cross sections. In addition, we have purchased a new rig to accelerate our drilling programme. This rig is due for shipping to Cameroon from South Africa this month.”
The Phase 2 drilling programme will initially focus on determining the continuity of grade/thickness of mineralisation on NW-SE trending cross sections over the prospect. Drillholes testing several recently identified geophysical targets will also be undertaken. Detailed planning of the Phase 2 programme is underway now these assays have been received.
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Figure 1: Ngovayang Project – Target Areas over Aeromagnetic Image (Analytical Signal of Total Magnetic Intensity)
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Technical Discussion
Melombo East
All assay results from the recently completed Phase 1 diamond drilling programme at Melombo East have now been received. The results of the outstanding seven drillholes (DH054, 55, 58, 60, 61, 64, 66) are presented in Table 1 below. Full drillhole details and previously returned assay results are given in Appendices 1 & 2.
| Table 1: Melombo East | Table 1: Melombo East | Table 1: Melombo East | – Diamond Drillhole Results | – Diamond Drillhole Results | – Diamond Drillhole Results | – Diamond Drillhole Results | ||
|---|---|---|---|---|---|---|---|---|
| Hole | **From ** | To | Int | Fe% | SiO2% | Al2O3% | P% | LOI% |
| DH054 | 1.2 | 32.2 | 31.0 | 25.80 | 44.19 | 10.24 | 0.070 | 4.23 |
| Incl. | 20.5 | 32.2 | 11.7 | 32.59 | 48.27 | 1.53 | 0.111 | -0.01 |
| DH054 | 46.1 | 100.5 EOH | 54.4 | 23.92 | 50.17 | 6.41 | 0.062 | 0.01 |
| Incl. | 58.7 | 100.5 EOH | 41.8 | 26.78 | 47.84 | 5.15 | 0.069 | 0.01 |
| DH055 | 1.2 | 19.7 | 18.5 | 25.22 | 40.72 | 13.62 | 0.064 | 7.35 |
| 42.0 | 100.5 EOH | 58.5 | 21.13 | 52.75 | 8.02 | 0.078 | 0.01 | |
| DH058 | 1.3 | 10.4 | 9.1 | 23.17 | 35.07 | 18.74 | 0.057 | 11.54 |
| 49.5 | 96.8 | 47.3 | 24.29 | 51.60 | 6.36 | 0.072 | -0.01 | |
| DH060 | 42.9 | 104.9 EOH | 62.0 | 28.71 | 48.41 | 4.29 | 0.084 | 0.01 |
| DH061 | 1.3 | 56.9 | 55.6 | 28.96 | 45.33 | 6.52 | 0.078 | 2.32 |
| DH064 | 27.0 | 100.5 EOH | 73.5 | 23.69 | 48.40 | 6.70 | 0.083 | 0.06 |
| DH066 | 1.2 | 77.1 EOH | 75.9 | 33.68 | 39.70 | 3.96 | 0.087 | 0.77 |
These results continue to demonstrate encouraging iron grades (+25% Fe) and thicknesses (+40m) of magnetite gneiss across the prospect. The fact that five of the seven drillholes ended in magnetite gneiss with associated iron grades between 21.1-33.7% Fe, adds to the potential of the prospect.
Importantly, drillholes DH046 and DH060, which are located 200m apart along a NW-SE trending section (perpendicular to the strike of the magnetite gneiss) display good correlation, see Figure 2. DH046 returned 80.5m @ 36.6% Fe from 20m to end of hole, while DH060 returned 62m @ 28.7% Fe from 42.9m to end of hole.
This correlation over a minimum width of 200m is also supported by geological mapping and geophysical modelling. Further infill drilling at 50m spacing between holes DH046 and DH060 and along section is planned to confirm the continuity of grade and thickness of the mineralisation.
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Figure 2: Drillhole Locations over Aeromagnetics
Phase 2 Drilling Programme
Based on a full geological, geochemical and geophysical review of the 34 hole drilling programme at Melombo East the following Phase 2 programme is proposed:
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Close spaced drilling initially between drillholes DH046 and DH060 to test grade/thickness continuity.
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Additional drillholes along several NW-SE trending cross sections to confirm grade and thickness continuity across the prospect.
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Complete drill testing in the northeastern part of the prospect with the new (more powerful) track mounted rig, where previous holes were not completed due to poor ground conditions and man portable rig limitations.
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Test four areas identified by geophysical interpretation as currently untested.
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APPENDIX 1: Full Details of Diamond Drilling Programme - Melombo East Prospect
| Hole ID | Easting | Northing | Dip/Azimuth | Final Depth |
|---|---|---|---|---|
| DH042 | 686065 | 373167 | -60/135 | 16.5* |
| DH043 | 686398 | 372915 | -90/000 | 96.0 |
| DH044 | 685676 | 372406 | -90/000 | 150.0 |
| DH045 | 686082 | 373171 | -90/000 | 30.0* |
| DH046 | 685435 | 371695 | -90/000 | 100.4 |
| DH047 | 685664 | 371930 | -90/000 | 84.0 |
| DH048 | 685351 | 371421 | -90/000 | 100.4 |
| DH049 | 684773 | 370886 | -90/000 | 100.6 |
| DH050 | 684313 | 371615 | -90/000 | 15.2* |
| DH051 | 684305 | 371618 | -90/000 | 100.0 |
| DH052 | 684660 | 371511 | -90/000 | 89.1 |
| DH053 | 685020 | 371068 | -90/000 | 101.6 |
| DH054 | 684578 | 372111 | -90/000 | 100.5 |
| DH055 | 684834 | 371194 | -90/000 | 100.5 |
| DH056 | 684470 | 370806 | -90/000 | 100.5 |
| DH057 | 684276 | 371538 | -90/000 | 101.3 |
| DH058 | 684683 | 371342 | -90/000 | 102.0 |
| DH059 | 684482 | 371424 | -90/000 | 30.2* |
| DH060 | 685301 | 371914 | -90/000 | 104.9 |
| DH061 | 686455 | 373419 | -90/000 | 77.3 |
| DH062 | 686081 | 373115 | -90/000 | 89.2 |
| DH063 | 686664 | 373539 | -90/000 | 30.2* |
| DH064 | 687128 | 373680 | -90/000 | 100.5 |
| DH065 | 687221 | 373550 | -90/000 | 25.7* |
| DH066 | 686919 | 373420 | -90/000 | 77.1* |
| DH067 | 686827 | 372640 | -90/000 | 69.0 |
| DH068 | 687082 | 372798 | -90/000 | 22.7* |
| DH069 | 687140 | 372896 | -90/000 | 30.2* |
| DH070 | 687188 | 373095 | -90/000 | 20.4* |
| DH071 | 686620 | 372589 | -90/000 | 30.2* |
| DH072 | 687288 | 373033 | -90/000 | 30.2* |
| DH073 | 687454 | 373376 | -90/000 | 30.0* |
| DH074 | 687095 | 373274 | -90/000 | 65.4 |
| DH075 | 687385 | 373012 | -90/000 | 27.2* |
| Total | 2,349 |
***** Drillhole abandoned due to poor ground conditions and rig limitations. Drilling utilised an Ingetrol man portable diamond drilling rig – HQ and NQ core sizes. Co-ordinates: Universal Transverse Mercator WGS84, Zone 32, Northern Hemisphere.
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APPENDIX 2: Previously Reported Diamond Drillhole Assays - Melombo East Prospect
| Hole | **From ** | To | Int | Fe% | SiO2% | Al2O3% | P% | LOI% |
|---|---|---|---|---|---|---|---|---|
| *DH044 | 33.8 | 150.0. EOH | 116.2 | 26.2 | 48.9 | 5.4 | 0.092 | 0.04 |
| Incl. | 70.9 | 150.0 EOH | 79.1 | 29.7 | 48.1 | 3.7 | 0.096 | 0.01 |
| *DH046 | 20.0 | 100.5 EOH | 80.5 | 36.6 | 44.6 | 0.2 | 0.103 | 0.04 |
| **DH047 | 0 | 33.1 | 33.1 | 22.5 | 30.4 | 23.4 | 0.049 | 13.10 |
| #DH051 | 0 | 48.5 | 48.5 | 23.0 | 47.7 | 10.1 | 0.054 | 1.45 |
| #DH051 | 92.0 | 100.0 EOH | 8.0 | 35.0 | 44.4 | 1.8 | 0.101 | -1.37 |
| #DH053 | 0 | 101.7 | 101.7 | 11.9 | 46.8 | 16.0 | 0.052 | 2.15 |
| Incl. | 0 | 11.8 | 11.8 | 20.2 | 16.4 | 29.1 | 0.084 | 17.88 |
- DH044 & DH046 reported previously to ASX on 11 November 2011.
**DH047 reported previously to ASX on 16 December 2011.
DH051 & DH053 reported previously to ASX on 12 March 2012
Assay Method Fe, SiO2, Al2O3, P by fusion XRF – OMAC Laboratory, Ireland. LOI – Loss on Ignition at 1,000[0] C determined gravimetrically.
The information in this announcement that relates to Exploration Results has been compiled by Mr Derek Waterfield, a Member of the Australian Institute of Geoscientists and a consultant to Legend Mining Limited. Mr Waterfield has sufficient experience relevant to the styles of mineralisation and types of deposit under consideration, and in the activity he is undertaking, to qualify as a Competent Person as defined in the 2004 Edition of the “Australian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves” (the JORC Code), and consents to the inclusion of the information in the form and context in which it appears.
Visit www.legendmining.com.au for further information and announcements.
For more information:
Mr Mark Wilson Managing Director Legend Mining Limited Ph: (08) 9212 0600
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