Fitzmaurice Basin

Sedimentary and volcanic: sandstone, siltstone, shale, conglomerate, dolostone, minor felsic volcanics.

Epoch Min:

Mesoproterozoic.

Epoch Max:

Palaeoproterozoic.

Age Min:

1500 Ma.

Age Max:

1800 Ma.

Summary:

A structurally bound and variably deformed sedimentary basin that occurs to the west of the Halls Creek and Giants Reef faults.

Relationship:

Faulted contact with the Neoproterozoic Victoria and Wolfe Basins. Overlies the Palaeoproterozoic Pine Creek and Halls Creek orogens, and is unconformably overlain by the Phanerozoic Bonaparte Basin.

Thickness:

At least 3.5 km.

Economic:

No significant known mineral occurrences.

Metamorphism:

Unmetamorphosed.

Main Reference:

Dunster JN, 2013. Chapter 20: Fitzmaurice Basin: in Ahmad M and Munson TJ (compilers) ‘Geology and Mineral Resources of the Northern Territory’. Northern Territory Geological Survey, Special Publication 5