Acquisition of a cryogenic magnetometer and demagnetization devices, with applications toward global geodynamics, long-term paleoclimate, regional tectonics, and stratigraphy

采购低温磁力计和消磁装置，应用于全球地球动力学、长期古气候、区域构造学和地层学

• 批准号: 0319172
• 负责人: David Evans
• 金额: $ 17.27万
• 依托单位: Yale University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-01 至 2005-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0319172&HistoricalAwards=false
• 关键词: Acquisition; cryogenic; magnetometer; demagnetization; devices

0319172EvansThis grant supports the development of a new paleomagnetic laboratory at Yale University where the primary research goals will be: (1) to establishamalgamation and dispersal histories of pre-Pangean supercontinents, (2) toinvestigate their implications toward first-order geodynamic development ofEarth, and (3) to determine relationships among supercontinental tectonics, long-termglobal climate, and biological evolution. Secondary research goals will include paleomagnetic applications toward rotations or translations in orogenic belts, the timing and pattern of crustal-scale fluid flow associated with ore-forming events, interbasinal stratigraphic correlation, and long-term variations of the Earth's magnetic dynamo. Specific equipment to be purchased includes a 2G-Enterprises superconducting rock magnetometer (SRM) equipped with automated sample handling system, alternating field and thermal demagnetizers and instruments for measuring bulk susceptibility and for imparting isothermal and anhysteretic remanences. The facility will support faculty and student research in the Department of Geology and Geophysics at Yale and will serve as a regional facility for Precambian paleomagnetic research.***

0319172 Evans这笔赠款支持在耶鲁大学建立一个新的古地磁实验室，该实验室的主要研究目标将是：(1)建立前盘古超大陆的合并和扩散历史，(2)调查它们对地球一级地球动力学发展的影响，以及(3)确定超大陆构造、长期全球气候和生物进化之间的关系。次要研究目标将包括古地磁应用于造山带的旋转或平移、与成矿事件有关的地壳尺度流体流动的时间和模式、盆地间地层对比以及地球磁性发电机的长期变化。将购买的具体设备包括配备自动样品处理系统的2G-Enterprise超导岩石磁强计(SRM)、交变磁场和热退磁器，以及用于测量整体磁化率和提供等温和无滞后剩磁的仪器。该设施将支持耶鲁大学地质和地球物理系的教职员工和学生的研究，并将作为前古地磁研究的地区性设施。*