Chronostratigraphy and Environmental Variability in Postglacial Carbonates of the Tahiti Coral Reef

大溪地珊瑚礁冰后碳酸盐的年代地层学和环境变化

• 批准号: 0751827
• 负责人: Steven Lund
• 金额: $ 17.62万
• 依托单位: University of Southern California
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-04-01 至 2011-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0751827&HistoricalAwards=false
• 关键词: Chronostratigraphy; Environmental; Variability; Postglacial; Carbonates

This project is to conduct paleomagnetic/rock magnetic studies on 504 samples of carbonate deposited by microbes (stromatolites) in the interstices of the macro-coral framework in Postglacial/late-Pleistocene coral-reef sediments from Tahiti on IODP Expedition #310. The aim is to develop a chronostratigraphic/lithostratigraphic framework for the microbial component of the entire Tahiti Coral Reef. This framework will be used to determine the age and growth rate for the reef microbialites and assess the timing of millennial-scale environmental variability in the coral reef for the last ~19,000 years.

该项目是在IODP Expectition＃310的Tahiti中，在冰川后/晚期/晚期珊瑚珊瑚的珊瑚珊瑚色沉积物中，在冰川后/晚期晚期珊瑚珊瑚珊瑚礁沉积物中沉积的504个碳酸盐样品（基质石）对504个碳酸盐样品进行了古磁/岩石磁研究。目的是为整个大溪地珊瑚礁的微生物成分开发一个年度地层/地层学框架。该框架将用于确定礁石微生物的年龄和增长率，并评估过去约19，000年来珊瑚礁千禧一代环境变异性的时机。