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| Mesozoic pelagic sediments: archives for ocean and climate history during green-house conditions Weissert, H.J. (2011). Mesozoic pelagic sediments: archives for ocean and climate history during green-house conditions, in: Hüneke, H. et al. Deep-sea sediments. Developments in Sedimentology, 63: pp. 765-792. http://dx.doi.org/10.1016/B978-0-444-53000-4.00011-1
In: Hüneke, H.; Mulder, T. (Ed.) (2011). Deep-sea sediments. Developments in Sedimentology, 63. Elsevier: Amsterdam. ISBN 978-0-444-53000-4. xiv, 849 pp.
In: Developments in Sedimentology. Elsevier: New York; London; Amsterdam. ISSN 0070-4571; e-ISSN 2352-2844, meer
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Deep sea Earth sciences > Geology > Tectonics > Plate tectonics Geological structures > Folds > Geosynclines Geological time > Phanerozoic > Geological time > Mesozoic Sediments Sediments > Pelagic sediments Marien/Kust |
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| Abstract |
Pelagic sediments were discovered as archives for ocean history. The Mesozoic with its peculiar climate became a promising target for this new field of palaeoceanography. Most exciting were findings of Cretaceous black shales in all the major oceans and the recognition of globally occurring ‘Oceanic Anoxic Events’ (OAE). Mesozoic black shales serve as proxies for peculiar conditions in palaeoceanography and they record perturbations of the global carbon cycle, possibly triggered by changes in atmospheric CO2 concentrations and recorded in the carbon-isotope signature of marine carbonates. The combination of isotope geochemistry and sedimentology resulted in a step from palaeoceanography to palaeoclimatology. New developments in stratigraphy provided the time frame for unravelling climate history with a high time resolution of 104 years or less. Future investigations of pelagic sediments will be based on an ‘earth system’ approach, and new geochemical and palaeontological tools will be used in the investigation of pelagic sediments as archives of past climate and environment. |
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