Ngalia Basin EL 1662 DIN Area Annual Report to January 1979

Abstract

A total of 17 drill holes were completed within EL1662. 8 percussion holes (2504.1m) at Dingo's Rest North, Wells: DIN 1-8. 9 diamond holes (4153.1m) between Dingo's rest north and Dingo's rest south. Continuous coring took place below the weathered zone in all the diamond drill holes DIN 9-17. The Mount Eclipse Sandstone has been sub-divided into; LOWER: Units 1, 2, 3 MIDDLE: Units 4, 5, 6, 7 UPPER: Units 8, 9. The Mount Elcipse Sandstone is a fluvial sandstone, coarse- medium grained. The lower Mount Eclipse decreases in thickness from north to south, while the middle Eclipse sandstone increases in thickness. Radiometric peaks and small radiometric accumulations located in drill holes situated on or south of the Cusack's Bore overthrust. Anomalous peaks located in unit 2. Important mineralisation found in Unit 2 at contact zones of discrete oxidation (hematisation of feldspars) and reduce zones containing organic material and fresh pyrite. The thickness of the mineralised levels with a wt of 1000 c-s A.V.P. Doesn't exceed 80cm in the best drill hole (DIN 12), maximum radioactivity 3750 c-s A.V.P. CRAE has adequately tested the coal seam. The area was relinquished.

AFMECO attempted to determine the extent of Uranium mineralization within the basal unit of the Mount Eclipse Sandstone with the Ngalia Basin EL1662.