Triassic-Lower Cretaceous wireline log data from Sites 759 through 764

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Abstract

Log analysis at these sites defined boundaries, trends, and log units. These analyses were also used to interpret the lithology at each site and, where possible, to correlate between adjacent sites on each plateau. Results enabled detailed correlation between Sites 762 and 763 on the southern Exmouth Plateau and a broader relationship to be established between Sites 759 and 760 on the Wombat Plateau. Wireline log data from the Exmouth and Wombat plateaus document two tectonic depositional cycles on the northwest Australian margin. The first is Late Triassic in age and follows a Permian rifting event. It was encountered only on the Wombat Plateau. The second is Early Cretaceous, documents a continental breakup event, and can be identified on both the Wombat and Exmouth plateaus. Superimposed on the large tectonic events are cycles of shorter duration reflecting sea-level oscillations and fluctuations in sediment supply. -from Authors

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Boyd, R., & Bent, A. (1992). Triassic-Lower Cretaceous wireline log data from Sites 759 through 764. Proc. Scientific Results, ODP Leg 122, Exmouth Plateau, 377–391. https://doi.org/10.2973/odp.proc.sr.122.119.1992

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