Mechanics and Thermal Structure of Compressional and Extensional Wedges

这笔赠款将支持继续进行的机械工作， 沉积楔 PI已经开发了一种运动学和 侵蚀临界楔形褶皱冲断的热模型 带，利用西部的稳定褶皱-冲断带 以台湾为中心的造型作品。 校长 一个新的项目是将机械和热模型扩展到 压缩楔的伸展对应物，即正常的 断层楔状物质， 断层 PI已经开发了一个关键的锥度模型， 构造（如挤压楔模型） 需要良好的结构数据，尤其是孔隙流体压力数据 接受测试 他们最近获得了一套广泛的 巴西山脊的工业地震和钻井数据 墨西哥湾的扩张楔。 他们 将开发一个完整的机械，运动学和热模型， 拉张楔，以布拉索斯楔为主要例子。

This grant will support continued work on the mechanics of sedimentary wedges. The PIs have developed a kinematic and thermal model of an eroding critically tapered fold-and-thrust belt, using the steady-state fold-and-thrust belt in western Taiwan as the center piece of modelling efforts. The principal new project is to extend mechanical and thermal models to the extensional counterparts of compressive wedge, namely the normally faulted wedges of material that overly shallow angle detachment faults. The PIs have developed a critical taper model of these structures which (like the model of a compressional wedge) requires good structural and especially pore-fluid pressure data to be tested. They have recently acquired an extensive set of industrial seismic and drilling data from the Brazos Ridge extensional wedge in the Gulf of Mexico for this purpose. They will develop a complete mechanical, kinematic and thermal model of an extensional wedge, using the Brazos wedge as the main example.