首页> 外文期刊>Proceedings of the Indian Academy of Sciences. Earth and Planetary Sciences >Deep seismic reflection study over the Vindhyans of Rajasthan: Implications for geophysical setting of the basin
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Deep seismic reflection study over the Vindhyans of Rajasthan: Implications for geophysical setting of the basin

机译:拉贾斯坦邦Vindhyans的深层地震反射研究:对盆地地球物理环境的启示

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This paper presents results of high-resolution deep seismic reflection profiling of the Proterozoic Vindhyan basin of the Rajasthan area along the Chandli-Bundi-Kota-Kunjer profile. Seismic images have been used to estimate the thickness of Vindhyan strata as well as to understand the tectonic framework of the basin. The results are constrained by gravity, magnetic and magne-totelluric data. The study reveals gentle SE-dipping reflection bands representing the Vindhyan strata. The seismic sections depict gradual thickening of the Vindhyan succession towards southeast from Bundi. The velocities of the upper and lower Vindhyans are identified as 4.6-4.8 km/s and 5.1-5.3 km/s. The NW limit of the Vindhyan basin is demarcated by the Great Boundary Fault (GBF) that manifests as a 30 km wide NW dipping thrust fault extending to a depth of 30 km.
机译:本文介绍了沿Chandli-Bundi-Kota-Kunjer剖面对拉贾斯坦邦元古生界Vindhyan盆地进行的高分辨率深地震反射剖面分析的结果。地震图像已被用于估计Vindhyan地层的厚度以及了解盆地的构造框架。结果受到重力,磁和镁卫星数据的限制。该研究揭示了代表Vindhyan地层的柔和的SE浸入反射带。地震剖面描绘了从邦迪向东南方向延伸的Vindhyan演替的逐渐增厚。上和下Vindhyans的速度确定为4.6-4.8 km / s和5.1-5.3 km / s。 Vindhyan盆地的西北边界由大边界断层(GBF)划定,该边界表现为30 km宽的NW俯冲断层延伸至30 km的深度。

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