COLLABORATIVE RESEARCH: Cretaceous Paleomagnetic Tests of the Baja British Columbia Hypothesis

合作研究：白垩纪古地磁对巴哈不列颠哥伦比亚省假说的测试

• 批准号: 9804961
• 负责人: Kenneth Kodama
• 金额: $ 5.98万
• 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 2001-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9804961&HistoricalAwards=false
• 关键词: COLLABORATIVE; RESEARCH; Cretaceous; Paleomagnetic; Tests

9804961 Kodama The Cordillera of western North America is composed of an amalgamation of tectonic terranes, attached at various times onto the stable North American craton, after being transported variable distances from their origins. This transport and amalgamation history is not well known and has given rise to several conflicting ideas. These proposals address two important but conflicting and mutually exclusive hypotheses, namely whether the Insular superterrane, presently in western British Columbia, originated in the Cretaceous north of California (no or small northward movement) or from far to the south, near Baja California. The work will be a careful reassessment of prior data and the assumptions underlying those data. Results are expected to help resolve the important controversy about the origins of the Insular terrane.

9804961 Kodama西部北美西部的Cordillera由构造式地形的融合组成，并在从其起源起来的可变距离后，在稳定的北美克拉顿（Stectoins Terranes）组成。 这种运输和合并历史并不众所周知，已经引起了几个矛盾的想法。 这些提议介绍了两个重要但相互矛盾的互斥假设，即目前在不列颠哥伦比亚省西部的岛上超级岩是起源于加利福尼亚州北部的白垩纪（没有或北向北部运动），还是从遥远的南部到南部，附近的加利福尼亚州。 这项工作将是对先前数据的仔细重新评估以及这些数据的基础。 预计结果将有助于解决有关岛屿地层的起源的重要争议。