Biogenic silica in surficial sediments of Prydz Bay, Antarctica

ADVANCES IN POLAR SCIENCE ›› 2008, Vol. 19 ›› Issue (1-English): 45-53.

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Biogenic silica in surficial sediments of Prydz Bay, Antarctica

Hu Chuanyu^1,2, Xue Bin¹, Yu Peisong¹ and Pan Jianming¹

1 Lab of Marine Ecosystem and Biogeochemistry, SOA, Second Institute of Oceanography, SOA, Hangzhou 310012, China;
2 China University of Geosciences, Wuhan 430074, China

Online:1958-03-30 Published:1958-03-30
Contact: Hu Chuanyu

Abstract

Abstract:

The content and distribution of biogenic silica were investigated in sediment cores from Prydz Bay, Antarctica, during the CHINARE-18/21 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 occurred at the Ⅳ-10 station. The profile of BSiO₂ in sediment is contrast to that of silicate 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 phytoplankton in the surface water column.

Key words: biogenic silica, surface sediment, organic carbon, Prydz Bay

Hu Chuanyu, Xue Bin, Yu Peisong, Pan Jianming. Biogenic silica in surficial sediments of Prydz Bay, Antarctica[J]. ADVANCES IN POLAR SCIENCE, 2008, 19(1-English): 45-53.

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Biogenic silica in surficial sediments of Prydz Bay, Antarctica

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