Environmental parameters controlling the genesis of microbialites in the post-LGM reef sequence of Tahiti (IODP MSP Expedition 310)

控制塔希提岛末次海潮后珊瑚礁序列中微生物岩起源的环境参数（IODP MSP Expedition 310）

• 批准号: 33647780
• 负责人: Professorin Dr. Hildegard Westphal
• 金额: --
• 依托单位: Leibniz-Zentrum für Marine Tropenforschung (ZMT)
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2006
• 资助国家: 德国
• 起止时间: 2005-12-31 至 2009-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/33647780?language=en
• 关键词: Environmental; parameters; controlling; genesis; microbialites

The proposed project will study the microbialites of the post-LGM reef sequence (ca. 21-10 ka) drilled off Tahiti during IODP Expedition 310. The study of structural (LM, SEM, TEM) and geochemical and geomicrobiological (trace element ratios; stable isotopes, phosphate contents, organic carbon contents, lipid biomarkers) trends aims at unraveling the relationship between environmental change and the genesis of the microbialites that make up up to 80% of the reef succession. The ultimate goal of the project is, by combining the results from the microbialites with sea-level and sea-surface temperature data from corals (studies by other Science Party Members), to reconstruct a comprehensive picture of climatic and oceanographic changes during the post-LGM sealevel rise.

拟议的项目将研究IODP探险310期间在塔希提岛附近钻探的LGM后生物礁序列(约21-10ka)的微生物。构造(光镜、扫描电子显微镜、透射电子显微镜)、地球化学和地球微生物(微量元素比值、稳定同位素、磷酸盐含量、有机碳含量、脂类生物标志物)趋势的研究旨在揭示环境变化与占生物礁序列80%以上的微生物岩成因之间的关系。该项目的最终目标是，通过将来自微生物的结果与来自珊瑚的海平面和海面温度数据(由其他科学党成员进行的研究)相结合，重建一幅关于末次冰川事件后海平面上升期间气候和海洋变化的综合图景。