Carpentaria Basin
Lithology: | Sedimentary: sandstone, mudstone, limestone. | |
Epoch Min: | Cretaceous. | |
Epoch Max: | Jurassic. | |
Age Min: | 65 Ma. | |
Age Max: | 205 Ma. | |
Summary: | An intracratonic basin sporadically exposed across the northeastern Northern Territory and offshore under the Gulf of Carpentaria. | |
Relationship: | Unconformably overlies the sedimentary rocks of Palaeoproterozoic Murphy Inlier, Paleo-Mesoproterozoic McArthur and South Nicholson basins, Neoproterozoic to Palaeozoic Georgina Basin and Palaeozoic Daly Basin. | |
Thickness: | Up to 5 km. | |
Economic: | Hosts giant manganese deposits at Groote Eylandt and bauxite at Gove. Numerous additional bauxite and manganese occurrences. Oil shows have been recorded offshore. | |
Metamorphism: | Unmetamorphosed. | |
Main References: | Munson TJ, Ahmad M and Dunster JN, 2013. Chapter 39: Carpentaria Basin: in Ahmad M and Munson TJ (compilers) ‘Geology and Mineral Resources of the Northern Territory’. Northern Territory Geological Survey, Special Publication 5 |
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