Regional Tectonic-Stratigraphic Analysis of Late Jurassic- Early Cretaceous Cordilleran Foreland Basin

晚侏罗世-早白垩世科迪勒拉前陆盆地区域构造地层分析

• 批准号: 8709039
• 负责人: Lee Suttner
• 金额: $ 11.79万
• 依托单位: Indiana University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-05-01 至 1990-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8709039&HistoricalAwards=false
• 关键词: Regional; Tectonic; Stratigraphic; Analysis; Late

A tectono-stratigraphic study of a sequence of Late Jurassic-Early Cretaceous continental sediments in the Cordilleran Foreland Basin in Wyoming and Montana is proposed. The objective of the study is to determine the local and regional sedimentary responses within the foreland both to external structural events and internal basin partitioning by ancestral Laramide basement uplifts. Fission-track and magnetostratigraphic dating techniques will be used to temporarily relate sedimentary responses to specific tectonic events. Results of the study will form the basis for an integrative sedimentary-tectonic model for the early phase of evolution of the Cordilleran Foreland Basin. The model likely will provide important new constraints on theoretical attempts to predict foreland lithosphere response to external tectonic events.

晚白垩世层序的构造地层学研究 侏罗纪-早白垩世陆相沉积 提出了怀俄明州和蒙大拿州的科迪勒纳前陆盆地。 研究的目的是确定当地和区域 前陆内部的沉积响应， 构造事件和盆地内部划分 Laramide基底隆起。 裂变径迹与磁性地层 年代测定技术将被用来暂时联系沉积物 对特定构造事件的反应 研究结果将 形成了一个综合的沉积-构造模型的基础， 科迪勒拉前陆盆地演化的早期阶段。 该模型可能会提供重要的新约束， 预测前陆岩石圈对 外部构造事件