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

近年来，人们对褶皱冲断带的研究已引起了极大的兴趣，不仅在几何和运动学方面，而且在热演化方面。该项目将利用纽约哈德逊河谷的一个经过充分研究的褶皱和逆冲带，试图区分埋藏加热效应、导电加热效应和上覆逆冲片。为了建立从卡茨基尔山脉到哈德逊河谷-小山脉冲断带的相对温度趋势，将记录伊利石结晶度和镜质组反射率的区域下降趋势。这些由热成熟度指数估算的温度，以及推力几何形状的原始恢复，将用于构建热模型，说明该地区的热演化和构造演化。结果有望证明是否明显的加热发生了过度推力，这些发现将具有广泛的重要性。

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.