SPATIAL DISTRIBUTION OF GE IN THE SEDIMENTS OF PRYDZ BAY, SOUTHERN OCEAN

doi:10.3724/SP.J.1084.2013.00105

Abstract

Abstract: The spatial distribution and concentration of Germanium (Ge) was investigated in sediments from the Southern Ocean (Prydz Bay). The content of Ge_total in surface sediments ranged from 1.14×10^-6—2.35×10^-6, with a mean of 1.71×10^-6. The highest Ge_total content was found in P3-9 station, which was in the deeper open sea area out of the Prydz Bay. The lowest Ge_totalwas recorded at the P4-13 station, which was near the edge of the Amery ice shelf. In the surface sediments, Ge_bio accounted for 16%—68% of Ge_total.Spatially,Ge_bio and Ge_totalhad similar distribution patterns, with higher values recorded outside, and lower contents in the south area of 67°S. The vertical distribution of Ge decreased with depth in the core sediments. In the surface sediments outside of the Polynyas, there was a positive correlation between Ge_bioand biogenic silica（BSiO₂）. Specifically, the depth profiles of Ge_bio and BSiO₂were similar in the sediments from the P3-16 station.

Key words: Ge, sediment, Prydz Bay, Southern Ocean

Shen Chen，Hu Chuanyu，Sun Weiping，Zhang Haisheng. SPATIAL DISTRIBUTION OF GE IN THE SEDIMENTS OF PRYDZ BAY, SOUTHERN OCEAN[J]. ADVANCES IN POLAR SCIENCE, 2013, 25(2): 105-112.

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