Collaborative Research: Integrated Isotopic, Geochronologic & Paleomagnetic Investigations of Cretaceous Coastal Basins: Assessment of Northward Translation of the 'Baja-BC'

合作研究：综合同位素、地质年代学

• 批准号: 0073888
• 负责人: Bernard Housen
• 金额: $ 5万
• 依托单位: Western Washington University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-07-01 至 2003-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0073888&HistoricalAwards=false
• 关键词: Collaborative; Research; Integrated; Isotopic; Geochronologic

0073888 Housen0073692 JohnsonThe mesozoic and tertiary accretion and transport history of terranes along the western plate margin of North America has received considerable study, however work to date has been unable to resolve between the two major hypotheses that have emerged. These models differ mainly in the timing of accretion and particularly in the subsequent northward terrane translation along the continental margin. This project will take a new tack and focus on a innovative detrital provenance analysis of basin sediments that were deposited along the margin during this time period is the hopes of pinning the source terranes and therefore the locations of terranes at various times. Results should help break the impasse in understanding the tectonic history of terrane accretion along the pacific margin of North America during mesozoic and tertiary time.

0073888 Housen0073692 Johnson 北美西板块边缘地体的中生代和第三纪增生和迁移历史已得到大量研究，但迄今为止的工作还无法解决已出现的两个主要假设之间的问题。 这些模型的不同之处主要在于吸积的时间，特别是随后沿大陆边缘向北的地体平移。 该项目将采取新的策略，重点对这一时期沿边缘沉积的盆地沉积物进行创新的碎屑物源分析，希望能够确定源地体，从而确定不同时期地体的位置。 研究结果应有助于打破理解中生代和第三纪北美太平洋边缘地体增生构造历史的僵局。