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Summary
The Proterozoic McArthur Basin, located in the north-east Northern Territory, preserves several large sediment hosted Zn-Pb-Ag mineral deposits. These deposits are hosted within sub-basins that developed during deposition of the McArthur Group. Geophysical interpretation and modelling have allowed the mapping of the location and faults bounding sub-basins within the central Batten Fault Zone (southern McArthur Basin). Two styles of sub-basin are recognised. Transtensional sub-basins developed between segments of the north–northwest-trending Emu Fault Zone. Approximately east–west-trending sub-basins developed adjacent to east–west-trending normal and north–northwest-trending transfer faults.
Detailed geophysical modelling of the Glyde sub-basin highlights the architecture of the sub-basin, including growth faults and the depth to the prospective Barney Creek Formation. The architecture of the sub-basin is consistent with a transtensional sub-basin that formed between strike-slip faults.