Collaborative Research: Thermal Contraction, Oceanic Intraplate Deformation, and Plate Circuit Closure

合作研究：热收缩、海洋板内变形和板电路闭合

• 批准号: 0928969
• 负责人: Cornelis Kreemer
• 金额: $ 9.2万
• 依托单位: Board of Regents, NSHE, obo University of Nevada, Reno
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2012-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0928969&HistoricalAwards=false
• 关键词: Collaborative; Research; Thermal; Contraction; Oceanic

Plate tectonics - the discovery that the Earth's surface is composed of a mosaic of rigid plates in motion, and that most significant events such as earthquakes and volcanic eruptions occur along the plate boundaries ? is the single most important theory about how he Earth works. If plates are truly rigid, it follows that where three plates meet, the sum of their motions must be zero, but observations clearly demonstrate that this condition is not met. This unresolved problem is of fundamental importance to our understanding of plate tectonics. One possible explanation is that the shapes of plates are slightly modified by thermal contraction as they age. This project has the aim of testing that hypothesis by quantifying the effects of the thermal contraction in a re-evaluation of the Pacific-Cocos-Nazca and Pacific-North America plate circuits. The results will contribute to our understanding ofht e workings of the Earth. The project will support a young investigator, and a graduate student, and the results will be shared with students in their coursework and through educational outreach.

板块构造 - 发现地球表面由运动中的刚性板组成，并且大多数重要的事件（例如地震和火山喷发）沿板边界发生？是关于他的地球工作方式的最重要的理论。如果板确实是刚性的，则得出的是，在三个板相遇的地方，其动作的总和必须为零，但是观察结果清楚地表明了这种情况无法满足。这个未解决的问题对于我们对板构造学的理解至关重要。一种可能的解释是，随着年龄的增长，板的形状会因热收缩而稍微修饰。该项目的目的是通过量化热收缩对太平洋cocos纳粹和太平洋北美板板电路的重新评估的影响来检验假设。结果将有助于我们对地球工作的理解。该项目将支持一位年轻的调查员和研究生，结果将在课程和教育外展中与学生共享。