RUI: A Crucial Test of Large Scale Terrane Translation: Examination of Albian-Cenomanian Conglomerates along the Intermontane/Insular Superterrane Boundary, Southwestern

RUI：大规模地体平移的关键测试：对西南部山间/岛超地体边界沿线的阿尔布-塞诺曼阶砾岩的考察

• 批准号: 9628515
• 负责人: J. Brian Mahoney
• 金额: $ 20万
• 依托单位: University of Wisconsin-Eau Claire
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-07-15 至 2000-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9628515&HistoricalAwards=false
• 关键词: RUI; Crucial; Test; Large; Scale

9628515 Mahoney A key controversy in the US and Canadian Cordillera concerns the amount and timing of northward translation of allochthouous terranes. Paleomagnetic data imply large-scale translation of both Insular and Intermontane terranes between late Cretaceous and Eocene times, but geologic data apparently limits the total margin-parallel displacement to much smaller amounts since late Cretaceous time. This investigation will attempt to resolve the controversy by testing a specific prediction of the large-scale translation hypothesis, namely a large (2000 km) relative displacement between the 80-55 ma, by use of upper Cretaceous strata, and an examination stratigraphic linkages between the rocks of this age that are found on both superterranes. Results are expected to provide robust data to resolve this controversy, which should also be useful in providing insight into the record of large-scale displacements in other orogenic systems.

小行星9628515 美国和加拿大科迪勒拉山脉的一个关键争议是， 外来语的北移。 古地磁数据意味着两者的大规模平移 晚白垩世和始新世之间的岛屿和山间地体，但地质数据 显然，自晚白垩世以来， 时间 这项调查将试图通过测试一个具体的预测来解决争议。 大规模平移假说，即80-55之间的大（2000公里）相对位移 马，通过使用上白垩纪地层，并检查岩石之间的地层联系， 这两个年龄段的人都有。 预计结果将提供可靠的数据来解决这一问题 这也应该有助于深入了解大规模流离失所的记录 在其他的造山系统中。