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首页> 外文期刊>Journal of the Geological Society of India >Paleoseismological investigations along Joggers Park Fault, Port Blair, South Andaman: Implications towards delineation of blind thrusting and related crustal deformation through ground penetrating radar (GPR) and electrical resistivity techniques (ERT and VES)
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Paleoseismological investigations along Joggers Park Fault, Port Blair, South Andaman: Implications towards delineation of blind thrusting and related crustal deformation through ground penetrating radar (GPR) and electrical resistivity techniques (ERT and VES)

机译：沿着慢跑者公园故障，南安曼港的古震学调查：通过地面穿透雷达（GPR）和电阻率技术来绘制盲目推力和相关地壳变形的影响（ERT和VES）

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摘要

Abstract A comprehensive paleoseismological investigations was carried out along Joggers Park Fault (striking NW-SE) reveals pervasive traces of active compressional tectonics (blind thrusting) and shallow-surface recent tectonic signatures along the fault. The geometry and trends in the tectonic deformation of the blind zone (shallow-subsurface stratigraphy) were examined with GPR and electrical resistivity tomography (ERT) and vertical electrical sounding (VES), strongly demonstrates severe tectonic deformation (persistent tectonic style) from Quaternary to Holocene times in a compressive stress regime. The surface manifestation of deformation (topographic expression) along the fault can be marked as hanging wall uplift and can be visually observed in the exposed sections at nearly half kilometer distance from the table land of Joggers Park in the form of a well-defined disconnected high angle thrust fault scarp (reverse fault). The reverse fault kinematically and intimately linked with underlying fault geometry provides adduced evidence to evaluate strike displacement profiles (displacement length relationship) along the fault. In addition, deformed stacked colluvial wedge below the scarp represents a powerful basis to calibrate recent and long term slip rates of the underlying fault.
机译：摘要沿着慢跑者公园故障进行了全面的古源性研究，揭示了沿着故障的普遍存在压缩构造（盲目推力）和浅层表面构造签名的普遍痕迹。用GPR和电阻率断层扫描（ERT）和垂直电阻（VES）检查了盲区构造变形的几何形状和趋势（浅层地层），强烈展示了从第四纪的严重构造变形（持续构造样式）全茂在压缩压力制度中。沿着故障的变形（地形表达式）的表面表现可以标记为悬挂壁上隆起，并且可以在暴露的部分中在视觉上观察到距离慢跑者公园的桌子土地的近似半公里的距离良好的断开的形式。角度推力故障围巾（反向故障）。与底层故障几何形状的逆向故障相关联，提供了沿故障评估罢工位移配置文件（位移长度关系）的增加的证据。此外，围巾下方的变形堆叠的抗楔形楔形表达了强大的基础，以校准底层故障的近期和长期滑移率。

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