Fluids, Faulting and In Situ Stress to 9 km in the KTB Borehole, Germany

小行星9614267 PI建议分析9公里KTB钻孔的数据，以更好地了解深度、岩性、当代原地应力场和地壳流体流动性之间的关系。这项工作将通过一个接近脆韧性转换深度的地壳剖面，调查构造对渗透率和渗透率各向异性的控制。 该项目将包括测量KTB主钻孔和KTB先导孔（分别钻至9公里和4公里）所穿透的断层和裂缝的分布和方向，通过与与水有关的热和流动异常进行比较来研究其水文特性，最后试图将相对渗透的裂缝与目前的应力场联系起来。 通过记录断裂方向和水文特性之间的系统关系，PI预计将为9100 m以下的水力特性解释提供框架。 ***

9614267 Zoback The PI proposes to analyze data from the 9 km KTB borehole to better understand the relationships among depth, lithology, the contemporary in situ stress field, and the mobility of crustal fluids. The work will investigate tectonic controls on permeability and permeability anisotropy through a crustal section that approaches the depth of the brittle-ductile transition. The project will include measurements of the distribution and orientation of faults and fractures penetrated by both the main KTB borehole and the KTB pilot hole (drilled to 9 and 4 km, respectively), a study of their hydrologic properties through comparison with fracture-related thermal and flow anomalies, and finally an attempt to relate the relatively permeable fractures with the current stress field. By documenting systematic relationships between fracture orientation and hydrologic properties, the PI expects to provide a framework for interpretation of hydraulic properties to 9100 m. ***