Application of Planktonic Foraminifera Size-Normalized Shell Weight in the Western Pacific
An Baizheng
Li Tiegang
Sun Hanjie
Xiong Zhifang
Chang Fengming
Abstract：Planktonic foraminifera Globigerinoides ruber (G .ruber )shell weight of sediment samples from South China Sea (SCS)located in the South China Sea and MD06-3052 located in the western Pacific are tested using size-normalized shell weight method and traditional shell weight method.In comparison with traditional shell weight method,SCS data indicate that the size-normalized shell weight method for G .ruber can significantly reduce the influence of test size on foraminifera shell weight in the study area.Comparing the variation curves of CO 2 concentration (p CO 2 )recorded in Vostok ice core,MD06-3052 G .ruber data show that size-normalized shell weight can indicate the change of sea surface water [CO 3 2- ]more effective-ly.The size-normalized shell weight method provides a reliable and rapid proxy for the weight analyses in the paleoceanographic study,and a potential proxy in studying the influence of surface sea water in global carbon cycle since Late Pleistocene.
Keywords：size-normalized shell weightplanktonic foraminiferacarbonatecarbon cyclethe western Pacificmarine geology
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：9( 881-889 )