The Southern Marion Platform (Marion Plateau, NE Australia) during the early Pliocene: a lowstand-producing, temperate-water carbonate factory
Published:January 01, 2006
Pascal Kindler, Cyril Ruchonnet, Tim White, 2006. "The Southern Marion Platform (Marion Plateau, NE Australia) during the early Pliocene: a lowstand-producing, temperate-water carbonate factory", Cool-Water Carbonates: Depositional Systems and Palaeoenvironmental Controls, H. M. Pedley, G. Carannante
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The Southern Marion Platform (Marion Plateau, offshore NE Australia) is a drowned, isolated carbonate platform of Neogene age that was drilled during ODP Leg 194 in January–March 2001. Initial results from the Leg suggested that temperate-water carbonate production was terminated by a phase of subaerial exposure during the late Miocene, and did not resume during the ensuing Pliocene transgression. New petrographic, geochemical, isotopic and biostratigraphical data obtained from samples collected during the cruise show that the Southern Marion Platform was not subaerially exposed during the late Miocene, and further remained intermittently active during the early Pliocene. At that time, its mode of functioning was probably the reverse of that of classical, Bahamian-type, isolated platforms: sediment production occurred during sea-level lowstands and was shut off during highstands.
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Cool-Water Carbonates: Depositional Systems and Palaeoenvironmental Controls
During the past decade, work on cool water carbonates has expanded to become a mainstream research area. Studies on modern and Quaternary deposits will continue to be important; however, there is increasing momentum towards unravelling sediment processes, biota-sediment interactions and diagenetic products in Cenozoic and older cool-water carbonates.
Many contributions in this book document Cenozoic and Quaternary carbonates from landlocked (microtidal) water-bodies. These carbonates display important differences in biota and fabric distributions when compared with world ocean examples. Consequently, the scientific community is now better placed to reinterpret pre-Tertiary carbonates where there is a suspicion that they have developed under microtidal conditions. Some papers in the book provide new approaches to interpreting environmental change within macrotidal regimes and others lay firm foundations for future cool-water carbonate diagenetic research
The aim of the book is to illustrate recent international contributions to cool-water carbonates research, with an emphasis on Neogene and Recent case studies. Contributions are divided into three sections: microtidal carbonates from the Mediterranean realm; macrotidal examples from New Zealand, Australia and Mexico; and early diagenetic fabrics.