Carbonate factory turnovers influenced by the monsoon (Xisha Islands, South China Sea)
作者： Feng Wu , Xinong Xie , Xushen Li , Christian Betzler , Zhilei Shang
DOI: 10.1144/JGS2018-086
关键词:
摘要: Carbonate factory turnovers are the integrated result of climatic, oceanographic and biological controls. Sedimentological, geochemical palaeontological data from core XK-1 drilled in Xisha Islands, South China Sea, reveal that photozoan to heterozoan carbonate during Early Middle Miocene isolated platforms were mainly caused by changes upwelling regime. A open bank association thrived tropical shallow water under conditions nutrient excess, indicated high ln(Cu/Ti) ln(Ba/Ti), increased abundances rhodoliths some foraminifer genera. During Miocene, episodes characterized a production correlate with times East Asian Summer Monsoon strengthening, especially 21.2 17.3 Ma 15.6 11.6 Ma. This study thus provides new insights into variability deposition monsoon-influenced areas also shows can contribute better understanding monsoon9s evolution. Supplementary material: Biostratigraphic magnetostratigraphic data, coral content, mineral compositions related this available at https://doi.org/10.6084/m9.figshare.c.4507070
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