Plateaus, located far away from the plate boundaries, play an important role in understanding the deep-rooted geological processes responsible for the epeirogenic uplift and dynamics of the plate interior. The Karnataka plateau located in the Dharwar craton, southern India, is a classic example for the plateau uplift. It is explored using orthogonal deep crustal seismic reflection studies, and a mechanism for the epeirogenic uplift is suggested. A pseudo three-dimensional crustal structure derived from these studies suggests a regionally extensive 10 km thick magmatic underplating in the region. It is further constrained from active-source refraction and passive-source seismological data. We interpret the Marion and Reunion mantle plume activities during 88 Ma and 65 Ma on the western part of Dharwar craton are responsible for the magmatic underplating, which caused epeirogenic uplift. Flexural isostasy related to the onshore denudational unloading and offshore sediment loading is also responsible for the persisting uplift in the region. Plate boundary forces are found to be contributing to the plateau uplift. The present study provides a relationship between the mantle plumes, rifting, development of continental margins, plateau uplift, and denudational isostasy. Combination of exogenic and endogenic processes are responsible for the plateau uplift in the region.

远离板块边界的高原在理解负责板块内部表生隆起和动力学的深层地质过程方面发挥着重要作用。位于印度南部达瓦尔克拉通的卡纳塔克高原是高原隆升的典型例子。使用正交深地壳地震反射研究对其进行了探索，并提出了表生隆起的机制。从这些研究中得出的伪三维地壳结构表明，该地区存在 10 公里厚的区域范围广泛的岩浆底侵作用。它进一步受到主动源折射和被动源地震数据的限制。我们解释了 Dharwar 克拉通西部 88 Ma 和 65 Ma 期间的 Marion 和 Reunion 地幔柱活动是岩浆底侵造成表生隆升的原因。与陆上剥蚀卸载和近海沉积物加载相关的弯曲均衡也是该地区持续隆升的原因。发现板块边界力对高原隆起有贡献。本研究提供了地幔柱、裂谷、大陆边缘发育、高原隆起和剥蚀均衡之间的关系。外生和内生过程的结合是该地区高原隆起的原因。与陆上剥蚀卸载和近海沉积物加载相关的弯曲均衡也是该地区持续隆升的原因。发现板块边界力对高原隆起有贡献。本研究提供了地幔柱、裂谷、大陆边缘发育、高原隆起和剥蚀均衡之间的关系。外生和内生过程的结合是该地区高原隆起的原因。与陆上剥蚀卸载和近海沉积物加载相关的弯曲均衡也是该地区持续隆升的原因。发现板块边界力对高原隆起有贡献。本研究提供了地幔柱、裂谷、大陆边缘发育、高原隆起和剥蚀均衡之间的关系。外生和内生过程的结合是该地区高原隆起的原因。