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.

PI将研究活生物的钙质海洋动植物组织的氢同位素组成，以及它们的氧气和碳同位素组成。 前提是，脂质的氢成分非常紧密地反映了水的氢同位素组成，因此应产生有关氧同位素组成的信息，这些氧密切相关。 该研究希望得出适合化石材料的系统 - 最终目的是在过去的古过温估计中使用氢同位素，这是一种千变万化的氧同位素。 为海洋钙质藻类和脂质提供一年可行性研究提供了资金，以确定这些生物体和海水的氢同位素组成之间的关系是否。