Report on investigations at MCC 183 Black Cat Prospect.

Abstract

During December 1987 a reverse circulation (RC) drilling program was carried out on six prospects which are included in the Adelaide Petroleum - Sabminco joint venture for the Tennant Creek region of the Northern Territory. This report details the findings at one of the prospects namely Black Cat. This RC drilling program was planned as a follow-up to geological mapping and sampling of the more prospective areas investigated and reported by Forrest in mid-1987. Drilling was contracted to Rockdril of Brisbane, Queensland who provided a SCHRAM 2000 reverse circulation rig in the first period of drilling from December 13th to 19th, 1987. A second period of drilling went from 4th January to 7th February 1988, using a Versatile 1000 rig. Drill cuttings and dust, samples of each metre drilled, were collected by the cyclone, then split and bagged in plastic bags. Composite two metre samples were then collected and sent for gold analysis by the fire assay method to ALS Brisbane Qld.

Airborne magnetometer surveys were flown over all five prospect areas in November 1987, however the timing of data processing was such that no data was available to assist in siting drill holes etc. Interpretation of the airborne magnetic data was in progress at the time of preparation of this report, and a supplement to the information provided here will be prepared.