THE GREAT ARTESIAN BASIN — ORIGIN AND HISTORY

1966 ◽  
Vol 6 (1) ◽  
pp. 88
Author(s):  
G. D. Williams

The Great Artesian Basin, occupying an area of nearly 700,000 square miles in eastern Australia, is a sedimentary basin which was initiated late in the Triassic period. Less than 9,000 feet of predominantly non-marine clastics make up the Great Artesian Sequence of Jurassic-Cretaceous age. This sequence, which includes one Lower Cretaceous marine interval, was deposited over an eroded surface of sedimentary, metamorphic, and igneous rocks of Triassic to Precambrian age between the Hunter-Bowen orogenic belt and the Australian Shield. Three, possibly four, primary dynamic basins are present within the limits of the Great Artesian Basin. One is the Surat Basin, two lie in the region known as the Eromanga Basin, and a fourth is probably present under the south-eastern Gulf of Carpentaria.

2002 ◽  
Vol 76 (5) ◽  
pp. 906-909 ◽  
Author(s):  
Robert A. Henderson ◽  
E. Donald McKenzie

The late Albian marine fossil record from eastern Australia derives from the sedimentary succession of the Great Artesian Basin deposited in a vast epicontinental sea which then covered much of the continent (see Frakes et al., 1987). Ammonites of this age are common but their generic diversity is low. Heteromorph assemblages almost exclusively comprise the taxa Myloceras, Labeceras sensu stricto and Labeceras (Appurdiceras) of the Family Labeceratidae that were widely distributed in higher latitudes of the Southern Hemisphere during Late Albian time (see Aguirre Urreta and Riccardi, 1988; Klinger, 1989). Some 19 endemic species of these genera are recorded from the Great Artesian Basin in the present literature (Etheridge, 1892; Whitehouse, 1926; Reyment, 1964) and there are additional undescribed species (Henderson and McKenzie, unpublished data). The Australian Late Albian epicontinental sea was clearly a site of significant speciation for Labeceras and Myloceras and it has been argued that the Great Artesian Basin represents the evolutionary center for these genera (Henderson, 1990).


1966 ◽  
Vol 6 (1) ◽  
pp. 93 ◽  
Author(s):  
Ralph N. Freeman

The Lake Frome Embayment Area occupies a position in the southernmost extension of the Great Artesian Basin. It is bounded on the west by the North Flinders limb of the Adelaide Geosyncline and on the east by the Tibooburra Block. It is limited on the south by the Olary Region and the arbitrary northern limits are taken at the south-eastern extension of the Muloorina Gravity Swell.The structural configuration of the area is fault controlled, and is believed to be related to block movements in the basement. A complex of evolved troughs is present. Two major troughs are especially evident, the Bancannia Trough in the east and the Lake Frome Gravity Depression in the west.Remnants of Cambro-Ordovician sediments are preserved on both sides of the Embayment, although outcrop is dominated by rocks of Proterozoic and older age. Devonian sediments are present in the eastern part of the area. Jurassic-Cretaceous sediments related to the Great Artesian Basin sequence are present.


Ground Water ◽  
2013 ◽  
Vol 53 (1) ◽  
pp. 171-178 ◽  
Author(s):  
Owen Powell ◽  
Jennifer Silcock ◽  
Rod Fensham

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