We present 2D and 3D inversion results using data from 22 broadband magnetotelluric sites in Saurashtra peninsula, India. The configuration of the Deccan basalt and sub-basaltic Mesozoic sediments is imaged using 2D inversion by implementing the appropriate regularization operator and the model is analogous to the 3D model. The regional fault systems are imaged within the highly resistive granitic crustal segment. The trend of these deep extending faults, seismicity and dyke patterns have similarities with those in Narmada – Son Lineament (NSL) region and it hints the possible extension of NSL to Saurashtra, in which both regions are now separated by Gulf of Cambay. Imaged fault systems have played a vital role in the magmatic transport to the surface during the Deccan volcanic event, and it has resulted in the modification of the crustal segments.

我们使用来自印度Saurashtra半岛的22个宽带大地电磁站点的数据呈现2D和3D反演结果。通过实施适当的正则化算子，使用2D反演对Deccan玄武岩和亚玄武岩中生代沉积物的构造进行成像，并且该模型类似于3D模型。区域断层系统在高电阻花岗岩地壳段内成像。这些深层延伸的断层，地震活动性和堤防模式的趋势与纳尔默达－松线地区（NSL）地区的趋势相似，这暗示了NSL可能扩展到索拉什特拉，而这两个地区现在都被坎贝湾分开了。成像断层系统在Deccan火山事件中在岩浆向地表的传输中起着至关重要的作用，并导致了地壳段的变质。