Amadeus Basin

Amadeus Basin

The Amadeus Basin is a large (ca. 170,000 km²) intracratonic sedimentary basin in central Australia, lying mostly within the southern Northern Territory, but extending into the state of Western Australia. It is named after Lake Amadeus which lies within the basin. Deposition of locally up to 14 km of marine and non-marine sedimentary rocks took place from the Neoproterozoic to the late Paleozoic. Along with other nearby sedimentary basins of similar age (Officer Basin, Georgina Basin, Ngalia Basin), the Amadeus Basin is believed to have once been part of the hypothetical Centralian Superbasin. The basin was locally deformed during the Petermann Orogeny (late Neoproterozoic — Cambrian), and more extensively during the Paleozoic Alice Springs Orogeny, events that fragmented the former Centralian Superbasin. The Amadeus Basin contains the producing Mereenie Oilfield and Palm Valley Gasfield, that supply most of the energy resources to the Northern Territory.

Key references

*Wells AT, Forman DJ, Ranford LC, Cook PJ (1970) Geology of the Amadeus Basin, Central Australia. Bureau of Mineral Resources, Australia, Bulletin 100.

*Lindsay JF, Korsch RJ (1991) The evolution of the Amadeus Basin, central Australia. In Korsch RJ, & Kennard JM (Editors). Geological and geophysical studies in the Amadeus Basin, central Australia. Bureau of Mineral Resources, Australia, Bulletin 236, 7-32.

*Shaw RD (1991) The tectonic development of the Amadeus Basin, central Australia. In Korsch RJ, & Kennard JM (Editors). Geological and geophysical studies in the Amadeus Basin, central Australia. Bureau of Mineral Resources, Australia, Bulletin 236, 429-462.

External resources

* [http://www.ga.gov.au/oceans/ea_Amadeus.jsp Amadeus Basin at Geoscience Australia]
* [http://www.nt.gov.au/dpifm/Minerals_Energy/Geoscience/index.cfm?newscat1=Palaeozoic%20Basins&newscat2=Amadeus%20Basin&header=Amadeus%20Basin Amadeus Basin at Northern Territory Geological Survey]

ee also

*Georgina Basin
*Ngalia Basin
*Officer Basin
*Alice Springs Orogeny
*Petermann Orogeny

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