Did Eastern Mexico and the Eastern Margin of Laurentia Collide During the Grenvillian Orogeny

墨西哥东部和劳伦西亚东缘在格伦维尔造山运动期间是否发生碰撞

• 批准号: 9909459
• 负责人: Kenneth Cameron
• 金额: $ 17万
• 依托单位: University of California-Santa Cruz
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-12-01 至 2002-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9909459&HistoricalAwards=false
• 关键词: Did; Eastern; Mexico; Margin; Laurentia

9909459CameronThe Grenvillian Orogeny that affected eastern Canada and the eastern and southern seaboard of the U.S. at about 1.0 Ga is normally interpreted to be a continent-continent collision between North America and a large continental mass to the southeast. However considerable controversy exists about whether South America (Amazonia), Africa, Mexico or some other craton was involved. This project will test and employ a relatively new dating technique to attempt to determine if Mexico is a viable candidate for the continental mass that collided with the southern part of the Orogen. Results will help clarify precambrian plate positions and a successful test of the new dating method is expected to be applicable elsewhere.

9909459卡梅隆大约在1.0 Ga时影响加拿大东部和美国东部和南部沿海的格伦维尔造山运动通常被解释为北美和东南部的大大陆块之间的大陆-大陆碰撞。 然而，关于是否涉及南美洲（亚马逊），非洲，墨西哥或其他克拉通存在相当大的争议。 该项目将测试和采用一种相对较新的测年技术，试图确定墨西哥是否是与造山带南部相撞的大陆块的可行候选者。 结果将有助于澄清前寒武纪板块的位置和一个成功的测试，新的定年方法，预计将适用于其他地方。