Acquisition of a Sensitive Magnetic Susceptibility/Anisotropy System for Investigating Red Bed Inclination Shallowing

获取用于研究红层倾角变浅的灵敏磁化率/各向异性系统

• 批准号: 9807099
• 负责人: Kenneth Kodama
• 金额: $ 2.32万
• 依托单位: Lehigh University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-08-01 至 2000-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9807099&HistoricalAwards=false
• 关键词: Acquisition; Sensitive; Magnetic; Susceptibility; Anisotropy

9807099 Kodama This grant provides partial support for the cost of acquiring a sensitive magnetic susceptibility/anisotropy system for the paleomagnetics laboratory at Lehigh University. The addition of the susceptibility/anisotropy system at Lehigh University will allow sensitive measurements of magnetic susceptibility and anisotropy of magnetic susceptibility (AMS) by the PI (Kodama) and his graduate students. These data will be important for developing a technique to identify and correct inclination shallowing of chemical remanent magnetizations (CRM) carried by hematite in red beds. Detailed AMS measurements of natural red bed samples and CRMs produced in the laboratory will be used in conjunction with remanence anisotropy measurements to determine empirical and test theoretical relationships between AMS and remanence anisotropy. The results will be used to understand the cause of anomalously shallow inclinations observed in Tertiary and Cretaceous red beds from central Asia. AMS measurements will also be important to a study initiated recently of the Nanaimo Group sediments in Vancouver. The anomalously shallow inclinations in these rocks have been used to provide support for the Baja British Columbia hypothesis of major terrane motions along the western margin of North America. ***

小行星9807099 该补助金为利哈伊大学古磁学实验室购买敏感的磁化率/各向异性系统的费用提供部分支持。 利哈伊大学增加的磁化率/各向异性系统将允许PI（Kodama）和他的研究生对磁化率和磁化率各向异性（AMS）进行灵敏的测量。这些数据将是重要的发展技术，以识别和纠正倾斜变浅的化学还原磁化（CRM）携带的红层中的赤铁矿。详细的天然红层样品和标准物质在实验室生产的AMS测量将与剩磁各向异性测量结合使用，以确定经验和测试AMS和剩磁各向异性之间的理论关系。研究结果将用于了解中亚第三纪和白垩纪红层中观察到的异常浅倾斜的原因。AMS测量对最近开始的温哥华纳奈莫群沉积物研究也很重要。这些岩石的极浅倾角被用来支持沿着北美西缘的主要地壳运动的下不列颠哥伦比亚省假说。 ***