3-D Seismic Modelling of Wide-Angle Fan Profiles to Establish the Lateral and Vertical Extent of the Sierra Nevada Root

9316008克伦佩雷尔1993年9月，内华达山脉南部大陆动力学项目获得了横跨锡拉斯南部和西部盆地和山脉省的“轴向”(南北)和“横向”(东西)广角反射/折射地震剖面。基于斯坦福大学的模型研究，SSCD在计划中的接收器阵列中引爆并记录了四个额外的风扇快照。关于内华达山脉岩基的一个根本不确定因素是，这个山脉的根部有多大；厚度有多大(如果它存在)以及在哪里(位于现在的山脉之下，或者在西部盆地和山脉的岩基延伸片段下方继续向东延伸)。这个项目包括支持研究生一年的努力，对收集到的数据进行三维建模。如果成功，该项目的结果将阐明大陆构造的两个基本问题：岩层的地壳结构和伸展构造的运动学。***

9316008 Klemperer In September, 1993 the Southern Sierra Nevada Continental Dynamics (SSCD) project acquired "axial" (north-south) and "transverse" (east-west) wide-angle reflection/refraction seismic profiles across the southern Sierras and western Basin and Range Province. Based on modelling studies at Stanford, the SSCD detonated and recorded four additional fan shots into the planned receiver arrays. One of the fundamental uncertainties about the Sierra Nevada batholith is the extent of the root to this mountain range; how thick (if it is present) and where (localized beneath the present mountains or also continuing east beneath the extended fragments of the batholith in the western Basin and Range). This project involves support for one year of graduate student effort to carry out three-dimensional modelling of the data that has been collected. If successful, the results of this project will shed light on two fundamental issues of continental tectonics; the crustal structure of batholiths, and the kinematics of extensional tectonics. ***