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Cretaceous Oceanic Red Beds: Characters, Occurrences, and Origin

Hu Xiumian 1,Wang Chengshan 2   

  1. 1. State Key Laboratory of Mineral Deposits Research, Department of Earth Sciences, Nanjing University, Nanjing 210093, China 2. Geological Centre of the Tibetan Plateau, China University of Geosciences, Beijing 100083, P.R. China
  • Received:2007-03-20 Revised:2007-03-20 Online:2007-03-20 Published:2007-03-20

Abstract: The Cretaceous Oceanic Red Beds (CORB) has become one of hot topics since it was put forward and initiated by Chinese scholars during latest 1990s. This paper try to overview scientific results, especially from our groups, related to the CORB studying. The geological and geochemical characters of the CORB from both southern Tibet, Eastern Tethys Ocean, and central Italy, Western Tethys were introduced in detail. Based on global correlation, the characters and occurrences of the CORB were discussed. We also discussed the implications of the CORB related to the response of the paleoceanographic and paleoclimatic changes. We believe that CORB is deposited in highly oxic environment with high content of dissolved oxygen of deeper water, which the latter may be the result of changes in the location and formation of deep water and changes in ocean circulation.