Perth, Dec 10, 2008 AEST (ABN Newswire) - Kasbah Resources Limited (ASX:KAS) is pleased to announce a significant increase in the company's JORC compliant Inferred Resource at its Achmmach Tin Project in Morocco.
1.1 Achmmach Inferred JORC Resource
An updated resource model on the Achmmach Tin Project was recently completed by independent resource consultants Carras Mining Pty Ltd. The Inferred JORC Resource, using a 0.6% tin cut-off grade is summarised below.
------------------------------------TONNES GRADE (Tin) CLASSIFICATION------------------------------------6 Mt 0.9% INFERRED------------------------------------
The Resource calculation takes into consideration:
1. Mineable parameters on grade and tonnage through the allowance of a mining dilution.
2. The nature of available drilling by limiting the extension of grade and tonnage for individual drill holes and then the application of a percentage continuity factor to allow for anastomosing of veins.
3. A detailed breakdown of the intersections used for extrapolation on a hole by hole basis as required by the JORC amendments 3 May 2007.
The Resource Estimation methodology is summarised in appendix A.
1.2 Forward Plans
The rapid growth of the resource base by the Kasbah Exploration team (resource tripled in 12 months from an initial 2Mt), recent assessments undertaken by an international geological tin expert and the large mineable widths and grades delineated in drilling to date indicate Achmmach has many of the critical ingredients to be a long life, low cost tin producer.
As such the company's plans are to accelerate the evaluation programme and to focus on delineation of a reserve that will underpin a 600,000 tpa - 750,000 tpa underground operation.
Kasbah is now investigating options including additional surface drilling (to define strike and depth extensions) and the development of decline access (to facilitate a more rapid reserve drill out).
Underground access from the 900RL level (from the side of the Achmmach hill directly into the main Meknes Zone which starts at approximately 890RL) would result in provision of underground drilling access to complete the reserve drill out.
Appendix A: Resource Estimation Methodology
The data on which this estimate is based consists of 20 diamond drill holes, originally drilled by BRPM (Bureau de Recherches et des Participations Minieres now ONHYM) and 25 diamond drill holes drilled by Kasbah. Assay grades in excess of 7% tin were cut back to 7% tin.
The resource is estimated from drilling on a minimum spacing of 50m to 120m.
Intersection Selection was applied to the drill holes using a 0.5% tin cut off grade and a horizontal minimum mining width of approximately 2.5m, although most intersections are well in excess of this. A minimum dilution of 0.5m horizontal was added to those intersections in excess of the minimum mining width.
The intersections were interpreted on section using extensions of 60m along strike on either side of the intersection and 50m up and down dip.
The interpreted shapes were wire framed and an inverse distance squared method was used to interpolate grades into blocks within the wireframes. A cut off grade of 0.6% tin was then applied to the wire framed shapes. Only 75% of the tonnage within shapes whose grade exceeded 0.6% tin was reported in the Inferred Resource to allow for the anastomosing shapes and the wide spaced drilling.
The volume covered in the estimation process is approximately 2km along strike, 400m wide and 500m deep (1200mRL to 700mRL). The ore body is open at depth and to the east.
It should be noted Achmmach is located in a major hill and access for underground mining can be directly from the side of the hill, adjacent to the level of the main mineralised zone.
Contact
Wayne Bramwell
Managing Director
Phone: +61 8 9463 6651
Peter Youd
Chief Financial Officer
Phone: +61 8 9463 6651
info@kasbahresources.com
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