The geological and structural complexities of the Southern Granulite Terrane (SGT) of India, a key Gondwana collisional orogenic belt, are increasingly recognized and our understanding is still evolving despite several multidisciplinary efforts. Six important structural cross sections along some critical geological corridors have been reconstructed covering the entire stretch of SGT. We propose subduction related multiple thrust systems for the evolution of the SGT, based on the salient features derived from the structural cross sections and the currently available geoscientific data sets. The presence of tectonic windows and klippe structures in Madurai block and unusual occurrence of high strain zones on top of some of the highly elevated quartzite hills support the thrust-nappe tectonic model for the SGT implying possible allochthonous nature of many of the supracrustals and granulitic units involving multiphases of thrusting. The evolution of the SGT involves converging accretionary processes of island arc magmatic intrusives, thrust stacking, crustal coupling, granitic emplacement and the obduction of ophiolite complexes indicating a complete range of geological processes encountered in modern orogenic belts. These features could thus be representative of multiple thrusting related to south directed subduction processes followed by wide scale collision of Gondwana fragments during the end Precambrian.

作为重要的冈瓦纳碰撞造山带，印度南部花岗岩田地（SGT）的地质和结构复杂性已得到越来越多的认识，尽管经过多方努力，我们的理解仍在不断发展。沿一些关键地质走廊重建了六个重要的结构剖面，覆盖了整个SGT。我们基于构造断面和当前可用的地球科学数据集的显着特征，提出了与俯冲有关的多推力系统，用于SGT的演化。Madurai块中存在构造窗口和klippe结构，以及在一些高度升高的石英岩山丘上出现高应变带的异常现象，为SGT的逆冲推覆构造模型提供了支持，这暗示着许多上地壳和花岗质单元可能具有外源性。涉及多阶段的推力。SGT的演化包括岛弧岩浆侵入体，逆冲堆积，地壳耦合，花岗岩沉积和蛇绿岩复合体的聚集增生过程，这表明现代造山带遇到了完整的地质过程。因此，这些特征可以代表与南向俯冲过程有关的多次逆冲作用，然后是前寒武纪末期冈瓦纳碎片的大规模碰撞。