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沃克巷是西部大盆地中NW向延伸的地带,长700km,宽100—300km。Krantz的奇数轴模式被用来建立内华达西部沃克巷中沃克湖和Excelsior-Coaldale两构造片的三维应变模型。地震震源机制断层/辅助平面与航天飞机成像雷达-B(SIR-B)图像上的一条构造线平行或近于平行。地震震源机制表明Excelsior-Coaldale构造片断层为走向滑动,而沃克湖构造片断层以倾向滑动为主,三维应变分析表明沃克湖构造片应变椭球体为拉长型,而Excelsior-Coaldale构造片应变椭球体为压扁型。沃克巷内两构造片应变椭球体的差异可归因于区域性的沃克巷构造剪切不是一条贯穿性走滑断层而是容纳了两个独立的构造片。三维应变的差异可能与两构造片流变特性各向异性有关,也可能与中生代构造继承有关。
Walker Lane is an NW-extended zone in the western Great Basin, 700 km long and 100-300 km wide. Krantz’s odd-axis model was used to create a three-dimensional strain model of the Walker Lake and Excelsior-Coaldale structural pieces in Walker Lane, Western Nevada. Earthquake focal mechanism Fault / Auxiliary Plane One line of construction on the SIR-B image is parallel or nearly parallel. The focal mechanism shows that the fault of Excelsior-Coaldale tectonic plate is strike-slip and the fault of Walker Lake tectonic fault is predominantly slippery. The three-dimensional strain analysis shows that the strain gauge ellipsoid of Walker Lake tectonic plate is elongated and that of Excelsior-Coaldale structural plate strain ellipse Sphere is flat. The difference in the strain ellipsoid between the two structural slices in Walker Lane can be attributed to the fact that the regional Walker Lane structure shear is not a penetrating strike-slip fault but accommodates two separate structural pieces. The difference in 3D strain may be related to the anisotropy of the rheological properties of the two tectonic plates and may also be related to the Mesozoic structural succession.