Absolute Paleotemperatures

绝对古气温

• 批准号: 8900288
• 负责人: Cesare Emiliani
• 金额: $ 6.15万
• 依托单位: University of Miami
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-06-01 至 1991-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8900288&HistoricalAwards=false
• 关键词: Absolute; Paleotemperatures

The PIs will study of hydrogen isotopic composition of the tissueof living calcareous marine plants and animals, along with their oxygen and carbon isotopic composition. The premise is that the hydrogen composition of lipids very closely mirrors the hydrogen isotopic composition of water, and therefore should yield information about oxygen isotopic composition, which are closely related. The study hopes to arrive at a system suitable for fossil material - the ultimate objective being the use of hydrogen isotopes in paleotemperature estimates of the past, muchlike oxygen isotopes. Funds are provided for a one year feasibility study on marine calcareous algae and lipids to determine whether the relationship between hydrogen isotopic composition of these organisms and seawater.

PIS将研究活的钙质海洋动植物组织的氢同位素组成，以及它们的氧和碳同位素组成。前提是，脂类的氢组成非常密切地反映了水的氢同位素组成，因此应该提供有关氧同位素组成的信息，这是密切相关的。这项研究希望得出一种适合化石材料的系统--最终目标是使用氢同位素来估算过去的古温度，即类似氧的同位素。为一项为期一年的海洋钙质藻类和类脂可行性研究提供资金，以确定这些生物体的氢同位素组成与海水之间的关系。