These are some sweet grades:
HIGHLIGHTS
Phase 1 diamond drilling program in the Eastern area of the Achmmach Tin Project completed
Phase 1 tested 650 metres of a 2 kilometre long mineralised system
Drilling has discovered new shallow tin zones in the Eastern area
New high grade down hole tin intercepts achieved include;
AD015: 1.9m @ 3.1% Sn from 163.6m;
5.2m @ 2.0% Sn from 382.9m;
3.8m @ 1.1% Sn from 392.8m
AD016: 1.9m @ 1.2% Sn from 121.7m;
1.0m @ 10.5% Sn from 129.8m
(Including 0.3m @ 31.6% Sn from 130.2m)
5.2m @ 1.0% Sn from 132.5m
AD017: 2.0m @ 1.2% Sn from 113.5m
Phase 2 drilling has commenced with the aim of the program being to expand the proven mineralisation beyond the existing underground workings in the Western area of the Achmmach tin project.
With respect to open pittable ore the Kasbah drilling has identified a new shallow ore target in the zone from AD016 to AD014 (between sections 2300E and 2600E). This target is available for future drilling but in terms of scale, it appears that the deeper portions of the Achmmach tin mineralised system have a much greater potential for the discovery of economically viable ore.
In addition to validating some of the BRPM drilling results, the Phase 1 drilling has reaffirmed the BRPM exploration concept for the Achmmach project. Analysis of drilling data and gravity surveys indicate that the tin source granite has intruded into a relatively simple greywacke and siltstone sequence creating a 3D fracture network within the overlying sediments. Hydrothermal fluids, some of which are tin bearing, have penetrated this fracture network resulting in zones of silica-tourmaline alteration, quartz-sulphide veining and crack-seal breccias.
Drilling suggests there is a spatial relationship between low temperature epithermal quartz; either as veining or hydrothermal breccia fill, with higher grade tin mineralisation. Although silica-tourmaline alteration is common, tin mineralisation is generally restricted to where this hard rock has been subsequently micro-fractured proximate to these epithermal quartz occurrences.
This could infer that Kasbah is at the top of a large mineralised system that is largely intact with better potential at depth.
There are several possible mineralised orientations within the Achmmach tin system. Drilling results give some support to the vertical ore model, as proposed by BRPM but other fracture controlled orientations have yet to be clearly defined and warrant additional drilling. (Figures 3 and 4).
The Phase 1 drilling has tested only 650 metres of the 2 kilometre long Achmmach tin mineralised system. Given the observed higher grade intersections at depth, conceptually the project may be capable of supporting an underground operation at Achmmach.
Phase 2 is focusing on the Western area of the Achmmach project, where underground workings by BRPM at the 890m level have proven ore continuity.
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