Cooper basin sediments

Cooper basin sediments consist of glaciofluvial, fluvio-lacustrine and deltaic elastics (Fig. 2) (Bat-tersby, 1976 Thornton, 1979). The Jurassic section of the Eromanga basin sequence was deposited in an intercratonic basin sag, and is made up of non-marine elastics deposited under fluvial, deltaic and lacustrine conditions. The Early Cretaceous Murta Member to Cadna-Owie Formation (Fig. 2) show deposition changing from lacustrine to marine, with marine conditions prevailing from the Aptian until the Upper Albian, when a return to paralic and fluvio-lacustrine conditions is indicated (Senior et al., 1978 Armstrong Barr, 1986). 

The 5 C character of SI is consistent with a major source of carbon involving methanogenesis (Curtis Coleman, 1986). Although a marine source of carbon (-2 to +2%o Hudson, 1977) could also theoretically explain the observed 5 C composition of SI, this explanation is inconsistent with the fluvio-lacustrine nature of the Cooper basin sediments. Locally, marine Warburton basin lime-... 

The Permo-Triassic Cooper basin of central Australia (Fig. 1) is Australia s largest onshore hydrocarbon province, containing about 6 TCF of recoverable gas and 300 MMSTB of oil and gas liquids (Heath, 1989 Laws, 1989). The basin consists dominantly of lacustrine-fluvial deposits with local glaciofluvial and rare paraglacial aeolian sediments (see Kapel, 1966, 1972 Gatehouse, 1972 ... 

Apak, S.N. (1994) Structural development and control on stratigraphy and sedimentation in the Cooper Basin Australia. PhD thesis. University of Adelaide, 105 pp. 

Williams, B.P.J. Wild, E.K. (1984) The Tirrawarra Sandstone and Merrimelia Formation of the Southern Cooper Basin, South Australia—the sedimentation and evolution of a glaciofluvial system. Aust. Petrol. Explor. Asi. J., 24, 377-392. 

First reported in recent marine sediments in 1967 275) have since been found in several marine basins 140, 141) Cooper and Blumer 140) suggested that the isoprenoid acids may provide markers for the contribution of animals lipids to the organic matter of recent sediments... 

The initial geophysical surveys of McMurdo Sound by Robinson (1962, 1963, 1964) were continued by Pederson et al. (1981), Wong and Christoffel (1981), McGinnis et al. (1983, 1985), Stem (1984), and Davy and Alder (1989). The scope of the geophysical studies of McMurdo Sound was enlarged by Kim et al. (1986), Davey (1987), and by Cooper et al. (1987, 1991) to include the crastal sfructure and sediment fill of the Victoria Land Basin north of McMurdo Sound. 

The concentration of Pu, " Pu, Pu, Pu, and Np isolated fi om oceanic estuarine and riverine sediments in the Arctic Ocean Basin indicates that the Pu in these sediments, as well as that in the deep basins (Amerasian and Eurasian) of the Arctic Ocean, has its origin in stratospheric and tropospheric fallout (Cooper et al. 2000). 

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