Thermal and Tectonic History of the Hudson Valley-Little Mountains Thrust Belt Using Structural Geometries, Thermal Indices, and Thermal Modeling

利用结构几何、热指数和热模拟研究哈德逊河谷-利特尔山脉冲断带的热和构造历史

• 批准号: 8709305
• 负责人: Gautam Mitra
• 金额: $ 4.55万
• 依托单位: University of Rochester
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-07-15 至 1989-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8709305&HistoricalAwards=false
• 关键词: Thermal; Tectonic; History; Hudson; Valley

Considerable research interest has recently been focused on fold-and- thrust belts, not only on the geometry and kinematics but also on their thermal evolution. This project will utilized a well-studied fold-and- thrust belt in the Hudson Valley of New York to attempt to distinquish burial heating effects from conductive heating from overriding thrust sheets. Regional down-section trends of illite crystallinity and vitrinite reflectance will be documented in order to establish relative temperature trends form the Catskill Mountains into the Hudson Valley- Little Moutains thrust belt. These temperature estimates from thermal maturation indexes, together with palinspastic restoration of thrust geometries, will be used in constructing thermal models illustrating the thermal and structural evolution of the region. Results are expected to demonstrate whether or not significant heating occurred by over thrusting, and these findings will have wide importance.

最近，相当多的研究兴趣集中在折叠和- 冲断带，不仅在几何学和运动学上，而且在其 热演化 该项目将利用一个良好的研究折叠和- 在纽约的哈德逊河谷的逆冲带，试图区分 逆冲断层传导加热的埋藏加热效应 薄膜. 伊利石结晶度和结晶度的区域下降趋势 将记录镜质组反射率，以确定相对 从卡茨基尔山脉到哈德逊河谷的气温趋势- 小山脉冲断带。 这些温度估计从热 成熟指数，以及逆冲断层的塑性恢复 几何形状，将用于构建热模型，说明 该地区的热演化和构造演化。 结果预计将 证明是否有明显的加热发生过逆冲推覆， 这些发现将具有广泛的重要性。