Title: General bathymetry of the Gulf of Carpentaria and the Quaternary physiography of Lake Carpentaria
Abstract: A generalized bathymetric map of the Gulf of Carpentaria has been prepared from Royal Australian Navy sounding data. The results confirm earlier work of Nix and Kalma and indicate that a closed basin Lake Carpentaria (below −53 m present water depth) could have existed during Quaternary low sea-level stands. An evaluation of previous and present work, shallow seismic records of the Canadian Superior Mining Co. (Australia), and oil company fathometer profiles indicate the preservation of lake sediments at −65 m and −53 m water depth, preserved shoreline feature at −19 m, −29 m and −65 m, as well as extensive underlying erosion and incision. These findings are consistent with erosion and incision of gulf sediments during sea-level lowering, aeolian infilling and "dune" formation on the present Arafura sill during the dry phase of Maximum glaciation and subsequent Lake Carpentaria formation and lacustrine sediment deposition most probably during the sea-level rise phase. Lake Carpentaria clearly dominates the physiography and climatology of this land bridge during Quaternary time.
Publication Year: 1983
Publication Date: 1983-04-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 59
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