Magnetic survey, AP 1378 Stuart's Bluff Range, NT

Abstract

Results of the magnetic survey at Stuart's Bluff Range have confirmed that the quartz haematite gossans of the Stuart's Bluff Range and Reaphook Hills areas are associated with elongate magnetic bodies of appreciable size at average depths of about 300 feet. The source of the magnetism is probably magnetite, from which the haematite of the gossans has been derived by oxidation, The similarity of the gossan occurrences and their associated magnetic anomalies with the mineralisation of the Tennant Creek area is discussed. It is concluded that there is a possibility of economic gold and base metal mineralisation associated with the magnetic bodies. Areas of special interest are recommended for further examination by induced polarisation survey and test drilling.