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Biogenic silica in surficial sediments of Prydz Bay,Antarctica

【标题】Biogenic silica in surficial sediments of Prydz Bay,Antarctica

【Title】Biogenic silica in surficial sediments of Prydz Bay,Antarctica

【作者】 扈传昱; 薛斌; 于培松; 潘建明

【Author】 Hu Zhuanyu ; Xue Bin ; Yu Peisong ; Pan Jianming

【期刊】极地研究

【Journal】

【期刊年份】2008

【卷】19

【期】1-Eng

【关键词】

【Keywords】 biogenic silica; surface sediment; organic carbon; Prydz Bay.;

【摘要】The content and distribution of biogenic silica were investigated in sedi- ment cores from Prydz Bay,Antarctica,during the CHINARE-18/21.cruise.The re- sults show that the content of biogenic silica(BSiO 2 ) is ranged from 4.89% to 85. 41%,and the average content of biogenic silica is 30.90%,the highest value oc- curred at theⅣ-10 station.The profile of BSiO 2 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.

【Abstract】The content and distribution of biogenic silica were investigated in sedi- ment cores from Prydz Bay,Antarctica,during the CHINARE-18/21.cruise.The re- sults show that the content of biogenic silica(BSiO 2 ) is ranged from 4.89% to 85. 41%,and the average content of biogenic silica is 30.90%,the highest value oc- curred at theⅣ-10 station.The profile of BSiO 2 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.

【基金/项目】 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”

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