Mt Samuel GML774E Sheriden Joint Venture, Annual statuatory report period ending 28 October 1984

Abstract

CRA Exploration Pty Ltd (CRAE), under Joint Venture Agreement with W Appel and L Appel , carried out gold exploration on the Sheriden, GML 774E, lease area. CRAE carried out a detailed grid and level survey with photogrammetic mapping at 1.1000 scale to establish a base for detailed geological mapping and geophysical surveys. These surveys entailed geological mapping at 1:1000 scale; detailed ground magnetics at five metre station spacing and 50m line intervals; and a detailed gravity survey on 25m centres at 50 and l00m line intervals. An area of anomalous magnetics with coincident excess mass was delineated. The anomaly is downdip from surface outcrops of quartz-haematite ironstone which cover an area of 100 x l00m. Modelling of the geophysical data suggests considerable downpitch extent of ironstone and drillholes have been designed to test the body at depth below the zone of surface leaching.