Cambrian Paleogeography of the West African Craton: An International Paleomagnetic Collaboration

西非克拉通寒武纪古地理：国际古地磁合作

• 批准号: 9725577
• 负责人: Joseph Kirschvink
• 金额: $ 5.57万
• 依托单位: California Institute of Technology
• 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: 1998-01-01 至 2000-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9725577&HistoricalAwards=false
• 关键词: Cambrian; Paleogeography; West; African; Craton

9725577 Kirschvink A coherent, global paleogeography of Cambrian time has begun to emerge during the last decade, although numerous questions remain. This project is aimed at resolving one of these-whether the Cambrian rocks from the Anti-Atlas Mountains in Morocco, along the northern margin of the west African craton, originated on this craton or was not yet a part of the Gondwana assembly until after the early Cambrian. Paleomagnetic poles will be obtained and corrected in order to test for Cambrian allochtoneity between these rocks and the rest of Gondwana. Results are expected to considerably clarify the timing and geometry of the final assembly of the Gondwana supercontinent.

9725577 Kirschvink在过去的十年里，关于寒武纪时代的连贯的全球古地理已经开始出现，尽管仍然有许多问题。该项目旨在解决其中之一--无论是来自摩洛哥沿西非克拉通北缘的安提阿特拉斯山脉的寒武纪岩石，还是起源于该克拉通的寒武纪岩石，还是直到早寒武世之后才成为冈瓦那组合的一部分。将获得并校正古地磁极，以测试这些岩石与冈瓦那其余部分之间的寒武纪同源作用。预计结果将大大澄清冈瓦那超大陆最终组装的时间和几何形状。