课题基金 / 基金详情

Origin of the Pacific-Antarctic EPR and of its Large-Scale Segmentation

Origin of the Pacific-Antarctic EPR and of its Large-Scale Segmentation
太平洋-南极洲EPR的起源及其大规模分割
批准号：
9314679
负责人：
Peter Lonsdale
金额：
$47.98万
依托单位：
University of California-San Diego Scripps Inst of Oceanography
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
1994
资助国家：
美国
项目状态：
已结题
起止时间：
1994-01-01 至 1998-12-31
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9314679&HistoricalAwards=false
关键词：
OriginPacificAntarcticEPRits

项目摘要

项目成果

Peter Lonsdale的其他基金

相似基金

相关文献

中文摘要
翻译
朗斯代尔9314679 在太平洋-南极东太平洋隆起的每一个边缘进行的一对海洋地球物理调查将确定这一隆起在新生代期间如何延长了2500公里，以及它如何产生主要的偏移，这些偏移定义了目前扩张中心的大规模分割。现有的数据表明，上升的增长是通过创建和捕获risecrest微板块，旧海洋岩石圈的裂谷，以及三重连接的迁移，因此该项目将包括这些过程的调查。 主要勘测工具将是多波束声纳、磁力计和单通道地震剖面仪。
英文摘要
Lonsdale 9314679 A pair of marine geophysical surveys, on each margin of the Pacific-Antarctic East Pacific Rise, will establish how this rise lengthened by 2500 km during the Cenozoic, and how it produced major offsets which define the large-scale segmentation of the present spreading center. Existing data indicate that growth of the rise was by creation and capture of risecrest microplates, rifting of old oceanic lithosphere, and migration of triple junctions, so the project will include investigation of these processes. Principal survey tools will be a multibeam sonar, magnetometer, and single channel seismic profiler.
期刊论文(0)
专著(0)
科研奖励(0)
会议论文
Collaborative Research: Dating Submerged Continental Crust Beneath the Southern Gulf of California, and a Synthesis of the Magmatic and Tectonic History of This MARGINS Focus Site
The submarine magmatic record of the transition from arc magmatism to continental rifting and seafloor spreading at the Gulf of California MARGINS focus site
The Bend in the Louisville Hotspot Chain: Comparison with the Hawaiian-Emperor Elbow
Indirect Study of Subducted Oceanic Lithosphere at the Central American Margin
海外基金