Biogenic silica in surficial sediments of Prydz Bay,Antarctica  

作　　者：扈传昱 薛斌 于培松 潘建明 

机构地区：[1]Lab of Marine Ecosystem and Biogeochemistry,SOA.Second Institute of Oceanography,SOA [2]China University of Geosciences

出　　处：《Chinese Journal of Polar Science》2008年第1期45-53,共9页极地研究（英文版）

基　　金：funded by the:"National Key Technology R&D Program project (2006BAB18B04)","The scientific research fund of the Second Institute of Oceanography,SOA (JT0706)",Polar stratagem fund"The mechanism of biogenic silica Preservation in the Prydz Bay and its biogeochemical significance"

摘　　要：The content and distribution of biogenic silica were investigated in sediment cores from Prydz Bay, Antarctica, during the CHINARE-18/2L cruise. The results show that the content of biogenic silica（ BSiO2 ） is ranged from 4.89% to 85. 41% , and the average content of biogenic silica is 30.90%, the highest value oc- curred at the IV-10 station. The profile of BSiO2 in sediment is contrast to that of sili- cate in the interstitial water. The content of biogenic silica and organic carbon in the surface sediments in the central area of Prydz Bay gyre were much higher than those in other area, and closely related to the Chla content and primary productivity of phyto- plankton in the surface water column.The content and distribution of biogenic silica were investigated in sediment cores from Prydz Bay, Antarctica, during the CHINARE-18/2L cruise. The results show that the content of biogenic silica（ BSiO2 ） is ranged from 4.89% to 85. 41% , and the average content of biogenic silica is 30.90%, the highest value oc- curred at the IV-10 station. The profile of BSiO2 in sediment is contrast to that of sili- cate in the interstitial water. The content of biogenic silica and organic carbon in the surface sediments in the central area of Prydz Bay gyre were much higher than those in other area, and closely related to the Chla content and primary productivity of phyto- plankton in the surface water column.

关 键 词：biogenic silica surface sediment organic carbon Prydz Bay. 

分 类 号：P593[天文地球—地球化学]