CALYPSO sediment cores from the southernmost Chilean Continental Margin (52-54°S) for the reconstruction of the Pleistocene climate and glacial history at the southern margin of the Southern Westerlies

来自智利大陆边缘最南端（南纬52-54°）的CALYPSO沉积岩芯，用于重建南西风带南缘的更新世气候和冰川历史

• 批准号: 5454244
• 负责人: Dr. Frank Lamy
• 金额: --
• 依托单位: Lehrstuhl für Geologie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2005
• 资助国家: 德国
• 起止时间: 2004-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5454244?language=en
• 关键词: CALYPSO; sediment; cores; southernmost; Chilean

The south Pacific and Southern Chilean continental margin within the southern hemispheric wind belt represent one of the key areas for understanding of interhemispheric climate change during the Late Quaternary. For this area, long-term and high resolution records are scarce and the climate and glaciation history is still discussed controversially. Therefore, we propose two sites for long Calypso sediment cores... with the French RV MARION DUFRESNE at the southernmost Chilean continental margin... to investigate the Late Quaternary climate change and glaciation history by using micropaleontological, geochemical, and mineralogical proxies. Optimum core sites will be selected based on high resolution sediment echography data and sedimentological records from various short sediment cores... obtained within the framework of an ongoing DFG-project... One site is proposed for the intra-Andean fjord-system and should display a high resolution record of glacier fluctuations, inerplay of lacustrine and marine environments, terrestrial plant colonisation and bioproductivty. A second site at the continental slope is planned to provide the link to paleoceanographic changes within the Cape Horn current system. Here, we will focus on the reconstruction of surface water changes and their relation to continental environmental changes recorded at the same site and at the more proximal fjord site.

南半球风带内的南太平洋和南智利大陆边缘是研究晚第四纪南北半球气候变化的关键区域之一。对于该地区，长期和高分辨率的记录是稀缺的，气候和冰川的历史仍然是有争议的讨论。因此，我们建议在两个地点寻找长的卡里普索沉积物岩心...与法国RV MARION DUFRESNE在智利最南端的大陆边缘...利用微体古生物、地球化学和矿物学代用指标研究晚第四纪气候变化和冰川作用历史。将根据高分辨率沉积物回声数据和各种短沉积物岩心的沉积学记录选择最佳岩心取样点。在一个正在进行的DFG项目的框架内获得...一个网站是为内部安第斯峡湾系统，并应显示冰川波动，湖泊和海洋环境的相互作用，陆地植物殖民化和生物生产力的高分辨率记录。计划在大陆坡建立第二个站点，以提供与合恩角海流系统内古海洋学变化的联系。在这里，我们将集中在重建地表水的变化及其与大陆环境变化的关系记录在同一网站，并在更近的峡湾网站。