North Atlantic Foraminifers and Climate: Expedition 395

北大西洋有孔虫和气候：第 395 次探险

• 批准号: NE/Y001745/1
• 负责人: Bridget Wade
• 金额: $ 4.3万
• 依托单位: University College London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FY001745%2F1
• 关键词: North; Atlantic; Foraminifers; Climate; Expedition

This research will contribute to an expedition of the International Ocean Discovery Program to the mid-Atlantic Reykjanes Ridge south of Iceland which will take a series of sediment cores up to about 1 km into the sea bed. Foraminifers are small sub-millimetric organisms that occur in the ocean plankton and secrete microscopic shells that build up in vast numbers in sea floor sediment. The foraminifera will be studied in this project to establish what species are present in the sediment cores and determine the age of the sediment layers. Variations in the type of foraminifers will be used to establish the history of climate variation in the North Atlantic and the contribution of various cold and warm deep sea currents that flow in the area.Detailed studies will also determine the evolutionary history of several of the modern plankton groups which are currently not well known and in particular establish whether their origin was related to climatic change.

这项研究将有助于国际海洋发现计划对冰岛南部大西洋中部雷克雅内斯海岭的考察，该考察将在海床深处约 1 公里处采集一系列沉积岩芯。有孔虫是存在于海洋浮游生物中的小型亚毫米生物，它们分泌的微小贝壳在海底沉积物中大量堆积。该项目将研究有孔虫，以确定沉积物岩心中存在哪些物种，并确定沉积物层的年龄。有孔虫类型的变化将被用来确定北大西洋气候变化的历史，以及在该地区流动的各种冷暖深海流的贡献。详细的研究还将确定目前尚不为人所知的几个现代浮游生物群体的进化历史，特别是确定它们的起源是否与气候变化有关。