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Proterozoic gold-copper project Tennant Creek and Starra Districts Workshop manual No. 2 (CODES publication 15)


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Large, RR, Davidson, GJ, Wedekind, R, Williams, BT, Rattenbury, MS, Berry, RF, Zaw, K, Kary, GL and Osbourne, R 1988 , Proterozoic gold-copper project Tennant Creek and Starra Districts Workshop manual No. 2 (CODES publication 15).

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To investigate the geological and geochemical
controls on Proterozoic gold-copper mineralisation in
iron oxide dominated hydrothermal systems. Major emphasis is to be placed on the gold-copper deposits at Tennant Creek (NT) and in the Selwyn basin (Queensland).

This research program commenced in 1984 as a joint University of Tasmania-CSIRO project with concentration on the application of lead isotopes and trace element geochemistry to exploration in the Tennant Creek region. In 1986 the project was expanded to include studies on other Proterozoic gold-copper-iron oxide deposits at Starra and Trough Tank, and a field workshop was held in July 1987 in Tennant Creek to review progress and plan Stage II of the research program. Twelve mining and exploration companies plus the Northern Territory Geological Survey are sponsoring Stage II which has now been running for twelve months. This second workshop
manual is a progress report on our research carried out
in 1988.

Members of the Ore Deposit Research Team have achieved the following progress in the past twelve months:
* Garry Davidson has reviewed the importance of Proterozoic gold-copper deposits in the context of gold
metallogeny in Australia.
* Mark Rattenbury has undertaken a study of the regional structure and stratigraphic relationships of the
Tennant Creek gold field with particular emphasis on
the southeastern section (Nobles Nob to TC8) and the
northwestern section (Greatwestern-White Devil-Warrego).
* Richard Wedekind has completed his PhD research on the Warrego deposit and is currently writing-up. A joint study on the structure of Warrego by Richard Wedekind, Mark Rattenbury and Ron Berry is included in this report.
* Khin Zaw has extended his study of fluid inclusions
in the ironstone lodes and revealed a complex history
of fluid evolution. This work has implications for both
ore genesis and mineral exploration in the district.
* Ross Large and Richard Wedekind have continued
their oxygen-hydrogen isotopic studies of hydrothermal
chlorite in the Tennant Creek lodes and developed a
working hypothesis for the evolution of mineralised
and barren systems.
* Garry Davidson has continued his PhD research on the Starra and Trough Tank deposits (Qld) and reports on the results of carbon/oxygen isotope studies, and tourmaline geochemistry which have relevance to the development of exploration models in the district.

Item Type: Report (Technical Report)
Authors/Creators:Large, RR and Davidson, GJ and Wedekind, R and Williams, BT and Rattenbury, MS and Berry, RF and Zaw, K and Kary, GL and Osbourne, R
Publisher: University of Tasmania
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