In the present study, the tectono-geomorphic attributes of the northern part of the Cambay basin, Western India, which has recently witnessed a surge in seismic activity has been investigated. The anomalies in the drainage network (morphometry) along with the sedimentological character of the drainages with OSL chronology was used to unravel the abrupt aggradation and incision processes during the late Holocene period. The analysis reveals two major lineaments i.e. NE-SW, which are related to the transfer faults and NW-SE lineaments, related to the listric/normal faults prevalent in the northern Cambay region. The NW-SE trend exhibited the first order streams, which hints the ongoing tectonic activity along the buried structural elements/faults. The valley fill sediments were incised during the late Holocene period i.e. < 3 ka, which is ascribed to the tectonic activity along the buried structure/faults in the Tharad-Sanchor block of the north Cambay basin. The present study is the first attempt to characterize the tectonic activity along the Tharad-Sanchor block of the north Cambay basin using geomorphometry and optical dating.

中文翻译：

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印度北古吉拉特邦全新世晚期北坎贝盆地构造不稳定性的地质特征

在本研究中，研究了印度西部坎贝盆地北部的构造地貌属性，该地区最近见证了地震活动的激增。排水网络（形态测量学）中的异常以及具有 OSL 年代学的排水系统的沉积学特征被用来解开全新世晚期的突然聚集和切割过程。分析揭示了两个主要的线状构造，即 NE-SW，它们与转移断层有关，而 NW-SE 构造物与北坎贝地区普遍存在的链状/正断层有关。NW-SE 趋势表现出一级流，这暗示了沿埋藏结构元素/断层正在进行的构造活动。填谷沉积物在全新世晚期被切开，即 < 3 ka，这归因于北坎贝盆地 Tharad-Sanchor 地块中沿埋藏结构/断层的构造活动。本研究是首次尝试使用地貌测量法和光学年代测定法来表征沿北坎贝盆地 Tharad-Sanchor 地块的构造活动。