Recent diatom and foraminiferal assemblages in surficial sediments of Prydz Bay, Antarctica.

Surficial bottom sediments collected from Prydz Bay, Antarctica contain three sedimentary facies, four foraminiferal faunas, and two diatom floras. A sandy diamict (Facies Ds) is deposited by iceberg rafting and reworked by currents of the Prydz Bay Cyclonic Gyre. A massive mud (Facies Mm) represents the sediments being supplied to the Bay and could provide a high resolution record of the Quaternary in Antarctica. A carbonate sand (Facies Cs) is a modern cold water carbonate deposited under special conditions on the outer continental shelf.

The presence of planktonic flora and fauna, and variations in sedimentological parameters are consistent with the physical oceanographic evidence for a large cyclonic gyre operating in the Bay.

The fields in this dataset are:
Sight Device Comments
Depth (m)
Sample
Foram
Diatom
Percentages of Individual species
Number of individuals counted.
Plankton

采自南极普里兹湾（Prydz Bay）的表层海底沉积物，包含3种沉积相、4种有孔虫动物群以及2种硅藻植物群。砂质混杂沉积（Facies Ds）由冰山浮运沉积而成，并经普里兹湾气旋环流（Prydz Bay Cyclonic Gyre）的水流改造。块状泥质沉积（Facies Mm）代表输入至该海湾的沉积物，可提供南极第四纪的高分辨率沉积记录。碳酸盐砂沉积（Facies Cs）是一类形成于大陆架外缘特殊条件下的现代冷水碳酸盐沉积。
浮游动植物的存在以及沉积学参数的变化，与该海湾存在大型气旋环流的物理海洋学证据相吻合。
本数据集包含以下字段：
观测设备备注
水深（m）
样品
有孔虫
硅藻
各物种占比
统计个体数
浮游生物