Author: Daniel Aaron Mack
Publisher:
ISBN:
Category :
Languages : en
Pages :
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The hydrocarbon prospects of the Triassic sequence of the Candace Terrace and Southwestern Preston Shelf (the eastern margin of the Barrow Sub-basin of the North West Shelf - W.A.) were investigated chiefly by seismic interpretation. The potential of the Triassic has been established in the Carnarvon Basin. There is incentive for further exploration of shelf areas following recent discoveries.
Author: Angelo Crostella
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 132
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Author: Karen K. Romine
Publisher:
ISBN: 9780642223357
Category : Carnarvon Basin (W.A.)
Languages : en
Pages : 46
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Author: M. H. Johnstone
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 58
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Author: M. F. Middleton
Publisher:
ISBN: 9780730911791
Category : Canning Basin (W.A.)
Languages : en
Pages : 70
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Author: M. J. A. Haynes
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 146
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Author: Matthew James Smith
Publisher:
ISBN:
Category :
Languages : en
Pages :
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The stratigraphic evolution of the Cenozoic strata was investigated through the interpretation of 2D and 3D seismic surveys, integrated with wireline and biostratigraphic data. Results show that the Cenozoic stratigraphy of the Dampier and Barrow Sub-basins in the North Carnarvon Basin, NW Shelf of Australia, is characterized by two second-order sequences, separated by a late-Miocene to Pliocene sequence boundary. The Dampier and Barrow Sub-basins contain: 1) Base Paleocene to Oligocene siliciclastic-carbonates, 2) Oligocene to early-middle Miocene non-tropical carbonate ramps, 3) early-middle Miocene to late Miocene-Pliocene tropical rimmed platforms, 4) a middle Miocene to Pliocene siliciclastic deposit, 5) late Miocene-Pliocene to Pleistocene non-tropical carbonate ramps and 6) Pleistocene to Recent tropical rimmed platforms. The initiation of tropical reef production in the North Carnarvon Basin was likely triggered by local climate, linked to the strengthening of the Leeuwin Current and the northwards migration of the NW Shelf to tropical latitudes. The temporary demise of carbonate reef production was likely a combination of 1) the closure of the Indonesian Throughflow to the North Carnarvon Basin, amplifying regional cooling trends and 2) rapid rise in relative sea-level in response to increasing subsidence rates from Australian and Indonesian Miocene to Recent collisional tectonics. The temporary onset of siliciclastic sedimentation in the Dampier Sub-basin was possibly due to 1) a fall in relative sea-level 2) tectonic uplift and 3) the onset of middle Miocene aridity, decreasing vegetation coverage and increasing the erosion rates of the Pilbara hinterland. This study presents new insight on the evolution of carbonate margins and slopes during the Cenozoic in the context of Australia's tectonic and climatic changes. It also provides a detailed characterization of the Cenozoic overburden in the Dampier and Barrow Sub-basins, which is essential to access for exploration geophysics and future drilling operations. Lastly, this work provides an additional analogue for mixed carbonate-siliciclastic reservoirs in SE Asia.
Author: Vickie Clare Iasky
Publisher:
ISBN:
Category :
Languages : en
Pages : 160
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Author: Arthur John Mory
Publisher:
ISBN:
Category : Geology, Stratigraphic
Languages : en
Pages : 56
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Author: Iain Alexander Copp
Publisher:
ISBN:
Category : Canning Basin (W.A.)
Languages : en
Pages : 140
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