This report is a continuaton of "Base Metal Geochemical Data from Eastern Officer Basin drill holes" compiled in January 1984 (SAR1090). Drill holes sampled include Marla 2, 3, 4, 5,6 and 7 and Meramangye 1, all of which were completed during the...

A series of lithostratigraphic interpretations of outcrop and drillhole sections (for SADME and Comalco holes) have been drawn up to assist in the production of a satisfactory palaeogeographic and stratigraphic model of the Officer Basin. 3...

This consultant's interpretation was done to assist with Comalco's trona and petroleum exploration. The crystalline (Carpentarian) basement surface has been delineated at depths ranging from less than 200 m to greater than 3000 m. NE-trending...

SADME and BMR data were reprocessed to produce Bouguer and residual gravity contour maps.

120 magnetic anomalies were investigated (14 in detail). All 14 anomalies are located over areas interpreted as either basement ridges or on the flanks of basement ridges. Most anomalies are located on interpreted fault trends.

TRONA EXPLORATION: Of the 9 rotary/diamond holes drilled, only the first, Meramangye 1, intersected a unit equivalent to the Observatory Hill Beds, which was the target horizon for trona. Drillholes Manya nos 2-6 and Marla 7 intersected Cambrian red...

Exploration for trona and base metals was centred on the Marla region. Work included regional gravity and magnetic studies, acquisition of airborne magnetic and multi-channel radiometric data, with follow-up ground magnetic and gravity surveys,...

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