Collaborative Research: Plate Tectonic and Geochemical Evolution of the Young Walvis Ridge and Implications for African Plate Motion Modeling
合作研究:年轻沃尔维斯海岭的板块构造和地球化学演化及其对非洲板块运动模型的影响
基本信息
- 批准号:1341047
- 负责人:
- 金额:$ 13.75万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2013
- 资助国家:美国
- 起止时间:2013-03-02 至 2016-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The cause of the bifurcating tracks of seamounts and seafloor swells in the Walvis Ridge area in the South Atlantic just off South Africa has been a longstanding enigma in Marine Geology and in our understanding of hotspots and the plate tectonic evolution of Africa. This project will go to sea to dredge and analyze rocks from the part of the seafloor to the west of the Walvis Ridge and examine changes from hotspot to diffuse volcanism. The present location of the Walvis hotspot and the reason for its waning volcanic activity over the last 60 Myr will also be determined. Argon trapped in minerals in the collected seafloor volcanic rocks will be used to determine the age progression of the volcano tracks. Rock, major and trace element geochemistry and isotopes will be used to see if the younger rocks in the bifurcated tracks can be linked to the older Walvis Ridge. Multibeam bathymetric mapping and a map of seafloor magnetics will also be generated to examine structural trends and plate tectonic motions of this part of the ocean floor. Broader impacts of the work include international collaboration with a complementary German effort that is studying the older part of the Walvis Ridge, K-12 teacher and graduate and undergraduate student training, and support of a PI whose gender is under-represented in the sciences.
南非附近南大西洋沃尔维斯海岭地区海山和海底隆起分叉轨迹的原因,长期以来一直是海洋地质学和我们对热点和非洲板块构造演化的理解中的一个谜。 该项目将出海挖掘和分析沃尔维斯海岭以西部分海底的岩石,并研究从热点到扩散火山活动的变化。 沃尔维斯热点的当前位置以及过去6000万年火山活动减弱的原因也将被确定。 收集到的海底火山岩矿物中的氩将用于确定火山轨迹的年龄进程。 岩石,主要和微量元素地球化学和同位素将被用来看看是否年轻的岩石在分叉的轨道可以连接到老沃尔维斯岭。还将制作多波束测深图和海底磁性图,以研究这一部分海底的结构趋势和板块构造运动。 这项工作的更广泛的影响包括与德国的一项补充努力进行国际合作,该努力正在研究沃尔维斯岭的旧部分,K-12教师和研究生及本科生培训,以及支持在科学领域性别代表不足的PI。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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William Sager其他文献
Magma variety and geochemical stratigraphy of Shatsky Rise
沙茨基隆起的岩浆变化和地球化学地层
- DOI:
- 发表时间:
2011 - 期刊:
- 影响因子:0
- 作者:
Takashi Sano;Kenji Shimizu;Akira Ishikawa;Ryoko Senda;Qing Chang;Jun-ichi Kimura;Mike Widdowson;William Sager - 通讯作者:
William Sager
William Sager的其他文献
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{{ truncateString('William Sager', 18)}}的其他基金
Collaborative Research: Late Cretaceous - early Cenozoic paleolatitude of the Walvis Ridge hotspot: Implications for true polar wander and hotspot geodynamics
合作研究:白垩纪晚期 - 新生代早期沃尔维斯海岭热点的古纬度:对真正的极地漂移和热点地球动力学的影响
- 批准号:
2232970 - 财政年份:2023
- 资助金额:
$ 13.75万 - 项目类别:
Standard Grant
Collaborative Research: Resolving the Origin of the Jurassic Quiet Zone
合作研究:解决侏罗纪安静区的起源
- 批准号:
2221815 - 财政年份:2023
- 资助金额:
$ 13.75万 - 项目类别:
Continuing Grant
Tectonic evolution of the Rio Grande Rise - Walvis Ridge hotspot twins inferred from magnetic anomaly and seismic reflection data
根据磁异常和地震反射数据推断的里奥格兰德隆起 - 沃尔维斯海岭热点孪生的构造演化
- 批准号:
1832197 - 财政年份:2018
- 资助金额:
$ 13.75万 - 项目类别:
Standard Grant
Collaborative Research: Rio Grande Rise: New Questions on Plume Dynamics, Atlantic Tectonic Evolution and an Important Window to the African LLSVP
合作研究:里奥格兰德海隆:羽流动力学、大西洋构造演化的新问题和非洲 LLSVP 的重要窗口
- 批准号:
1558782 - 财政年份:2017
- 资助金额:
$ 13.75万 - 项目类别:
Continuing Grant
Effects of Hurricane Harvey's extraordinary rain event on sedimentation at the tidal inlets of Galveston Bay, Texas
飓风哈维的异常降雨事件对德克萨斯州加尔维斯顿湾潮汐入口沉积物的影响
- 批准号:
1763088 - 财政年份:2017
- 资助金额:
$ 13.75万 - 项目类别:
Standard Grant
Collaborative Proposal: How Did the World's Largest Single Volcano Form at a Triple Junction? A Magnetic and Bathymetry Survey of Tamu Massif, Shatsky Rise
合作提案:世界上最大的单一火山是如何在三重交界处形成的?
- 批准号:
1458908 - 财政年份:2015
- 资助金额:
$ 13.75万 - 项目类别:
Standard Grant
Collaborative Research: Developing A Prototype Drifter to Measure the Oceanic Geomagnetic Field
合作研究:开发测量海洋地磁场的原型漂流器
- 批准号:
1341046 - 财政年份:2013
- 资助金额:
$ 13.75万 - 项目类别:
Standard Grant
Collaborative Research: A Deep-AUV Magnetic and Seismic Study of the Hawaiian Jurassic Crust - The Global Significance of Jurassic Magnetic Anomalies
合作研究:夏威夷侏罗纪地壳深部 AUV 磁和地震研究 - 侏罗纪磁异常的全球意义
- 批准号:
1341955 - 财政年份:2013
- 资助金额:
$ 13.75万 - 项目类别:
Continuing Grant
Collaborative Research: Plate Tectonic and Geochemical Evolution of the Young Walvis Ridge and Implications for African Plate Motion Modeling
合作研究:年轻沃尔维斯海岭的板块构造和地球化学演化及其对非洲板块运动模型的影响
- 批准号:
0961719 - 财政年份:2011
- 资助金额:
$ 13.75万 - 项目类别:
Continuing Grant
Collaborative Research: Developing A Prototype Drifter to Measure the Oceanic Geomagnetic Field
合作研究:开发测量海洋地磁场的原型漂流器
- 批准号:
0961718 - 财政年份:2010
- 资助金额:
$ 13.75万 - 项目类别:
Standard Grant
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