REGIONAL GEOLOGY OF THE ARAFURA BASIN

Jun 30th, 2015
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The Arafura Basin is located on the northern margin of Australia in the Arafura Sea and extends from the onshore Northern Territory to the Australian–Indonesian border (Figure 1). It is located in mostly shallow water, with a maximum depth of 230 m. The region is under-explored with no commercial discoveries; nine wells have been drilled within the Goulburn Graben

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Regional Geology of the ARAFURA BasinBasin OutlineIntroductionThe Arafura Basin is located on the northern margin of Australia in the Arafura Sea and extends from the onshore Northern Territory to the AustralianIndonesian border (Figure1). It is located in mostly shallow water, with a maximum depth of 230m. The region is under-explored with no commercial discoveries; nine wells have been drilled within the Goulburn Graben but the main depocentre to the north (Figure2) has not been tested.Basin SummaryThe northern margin of Australia is structurally complex and contains three partially overlapping basins; the McArthur Basin (PaleoproterozoicMesoproterozoic), the Arafura Basin (NeoproterozoicPaleozoic) and the Money Shoal Basin (MesozoicCenozoic) (Figure1 and Figure3). The Australian part of the Arafura Basin extends north from the onshore McArthur Basin and covers an area of approximately 200,000km2. The basin contains up to 15km of late Neoproterozoic (CryogenianEdiacaran) to Paleozoic (Cisuralian) sediments, overlain by up to 4km of Mesozoic (Early Jurassic) to Cenozoic sediments of the Money Shoal Basin.The following regional petroleum geology is compiled from a Geoscience Australia study of the Arafura and Money Shoal basins (Earl, 2006; Struckmeyer, 2006a, b; Totterdell, 2006) and earlier work by Petroconsultants (1989), Bradshaw et al (1990), McLennan et al (1990), Labutis et al (1992) and Miyazaki and McNeil (1998). Basin Evolu

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