A comparative study of boron isotopes and trace elements of the marine foraminifers during the last glacial maximum and Holocene |
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| Authors: | NI YunYan Research Institute of Petroleum Exploration Development PetroChina Beijing China Bristol Isotope Group |
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| Institution: | NI YunYan 1,2 1 Research Institute of Petroleum Exploration , Development,PetroChina,Beijing 100083,China,2 Bristol Isotope Group,Department of Earth Sciences,Bristol University,Wills Memorial Building,Queens Road,Bristol BS8 1RJ,United Kingdom |
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| Abstract: | Boron isotopic compositions in marine planktonic foraminifers can record changes in seawater pH and hence provide a new tool to reconstruct the changes of paleo-atmospheric PCO 2.Here a comparative study was done on boron isotopes and trace element abundances of planktonic foraminifers,Globigerinoides sacculifer and Globigerinoides ruber from three tropical ODP sites,Site 806B,Site 664C and Site 999A.It is demonstrated here that G.ruber is a better species to be used for downcore boron isotope analyses on g... |
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| Keywords: | foraminifers boron isotope trace element last glacial maximum atmospheric PCO2 |
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