Distributions of surface sediments surrounding the Antarctic Peninsula and its environmental signifi cance

doi:10.13679/j.advps.2014.3.00164

Abstract

Abstract: We analyzed grain size composition to provide information on the types and distributions as well as depositional varieties of marine surface sediments from the area surrounding the Antarctic Peninsula. The samples retrieved from the study area contain gravel, sand, silt and clay. As suggested by bathymetry and morphology, the study area is characterized by neritic, hemipelagic and pelagic deposits. The glacial-marine sediments can be divided into two types, residual paratill and compound paratill, which are primarily transported by glaciers and as ice-rafted debris. Ocean current effects on deposition are more obvious, and the deposit types are distributed consistently with terrain variations.

Key words: Antarctic Peninsula, surface sediments, grain size, environmental signifi cance

WANG Chunjuan, CHEN Zhihua, LI Chunshun, DU Dewen, YAN Shijuan & ZHU Zhiwei. Distributions of surface sediments surrounding the Antarctic Peninsula and its environmental signifi cance[J]. ADVANCES IN POLAR SCIENCE, DOI: 10.13679/j.advps.2014.3.00164.

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Distributions of surface sediments surrounding the Antarctic Peninsula and its environmental signifi cance

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