ADVANCES IN POLAR SCIENCE ›› 1996, Vol. 7 ›› Issue (2-English): 118-125.

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Preliminary study on late Quaternary foraminiferal assemblagein the Bransfield Strait, West Antarctica and its significance ofenvironment

Chen Chaoyun   

  1. Second Marine Geological Investigation Brigade, MGMR, Guangzhou 510760, China
  • Online:1946-06-30 Published:1946-06-30
  • Contact: Chen Chaoyun
  • Supported by:

    This project was supported by the State Antarctic Committee of China.

Abstract:

21 species foraminifera, including in 14 genera were encountered from 39samples of core PC10, which were drilled in the Bransfield Strait of Antarctic Peninsula. They are divided into 3 assemblages as follow: 1. Siliceous shell assemblage; 2. Calcareous shell assemblage; 3. Mixed shell assemblage. The Siliceous shell assemblageoccurred in normal deep-sea, with weaker water dynamic condition. The Calcareousshell assemblage was formed by turbidity now, while the Mixed shell assemblage represented intense to weaker water dynamic condition. It changed from warm to cold towarm during the late Quaternary.

Key words: Antarctica, Bransfield Strait, late Quaternary, Foraminifera, sedimentary environment