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 尽管仍然存在许多问题，但在过去十年中，寒武纪时期的连贯的全球古地理已经开始出现。 该项目旨在解决其中一个问题——来自西非克拉通北缘摩洛哥反阿特拉斯山脉的寒武纪岩石是否起源于该克拉通，或者直到寒武纪早期之后才属于冈瓦纳大陆组合的一部分。 将获得并校正古地磁极，以测试这些岩石与冈瓦纳其他地区之间的寒武纪异体性。 预计结果将大大澄清冈瓦纳超大陆最终组装的时间和几何形状。