Annual Report on EL 4954 Finniss River year ending 20-7-1988

Abstract

Exploration Licence 4954, comprising 6 blocks, is located 46 kilometers south of Darwin in the Finniss range area. Corporate Developments Pty. Ltd. has been exploring the area for tin /tantalite mineralization in the pegmatites and other prospective zones and envisages recommissioning the existing alluvial plant on adjacent tenements in 1989. Exploration during the 87/88 year consisted of sampling of pegmatites and alluvial/elluvial material from a number of places within EL 4954. The pegmatites, which have beem emplaced in Burrell Creek Formation, are zoned and a small proportion contain visible mineralization. Microscopic and microbe studies of mineral concentrates has established that the ore minerology consists of tantalite-colombite, cassiterite, rutile, ilmenite, magnetite and amblygonite. Other associated minerals are a wide spectrum of rare earths, gold, muscovite and kaolin.

The distribution of mineralization throughout individual pegmatites is patchy. As exploration proceeds it is planned to utilise the existing alluvial plant on MLN 1052 for bulk testing ore to sample and test material from EL 4954 and adjacent tenements.