Accretion of Extraterrestrial Matter to the Earth: The Sedimentary Record

地外物质向地球的吸积：沉积记录

• 批准号: 8904833
• 负责人: Frank Kyte
• 金额: $ 11.88万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-06-15 至 1991-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8904833&HistoricalAwards=false
• 关键词: Accretion; Extraterrestrial; Matter; Earth; Sedimentary

PI's will carry out a broad-based research program designed to make major advances in the understanding of the chemical and mineralogical record of the accretion of extraterrestrial matter to the Earth, as recorded in terrestrial sediments. Basic long- term goals are (1) to determine the background accretion rate of extraterrestrial matter to the Earth, (2) to characterize and understand the record of known and suspect sedimentary horizons which may record major accretionary events (e.g., impacts), and (3) to search for and find evidence of previously unknown impact horizons in the sedimentary record.

PI将开展一项基础广泛的研究计划， 在理解化学物质方面取得重大进展， 地外物质吸积的矿物学记录 在地球上，记录在陆地沉积物中。 基本长- 长期目标是（1）确定本底吸积速率， （2）地球外的物质，（2）表征和 了解已知和可疑沉积层位的记录 其可以记录主要的增生事件（例如，影响），以及 (3)寻找和发现以前未知的影响的证据 沉积记录中的层位。