The Neoarchaean Dharwar Supergroup of rocks in the Chitradurga area unconformably overlie the Mesoarchaean Peninsular Gneissic Complex in the west and are tectonically juxtaposed with Javagondanahalli Schist Belt in the east. The rocks of the supergroup have been divided into older Bababudan and younger Chitradurga Groups. We support the recent division of the Bababudan rocks into a lower conglomerate–sandstone facies association and an upper sandstone–mudstone facies association indicating tidal flat depositional environment. The Talya Conglomerate sequence at the base of the Chitradurga Group is inferred to represent a fault-controlled debris flow deposit. The basin opens out to the east where sedimentation and volcanism took place on an uneven basement surface. The Vanivilas and Ingaldhal Formations likely represent contemporaneous and overlapping sequences indicative of facies variation in space. The KM Kere Conglomerate at the base of the Hiriyur Formation represents a facies series comprising a sequence of volcanic–pyroclastic–volcaniclastic–epiclast association. We propose a four-fold stratigraphic classification with introduction of a new ‘Kantaramanahalli Formation’, placed above the Vanivilas and Ingaldhal Formations and below the Hiriyur Formation. The interpretation of multiple deformed nature of Dharwar Supergroup of rocks and the dominance of the second deformation (D₂) is supported. The initial irregularities on basement surface and the F₁ folds have significant role in fold superposition and outcrop patterns. The intra- and inter-formational ductile shear zones have dominant sinistral transcurrent component. Structural studies are conclusive of simple shear (D_2b) superposed on intense pure shear (D_2a) indicative of an overall transpressional type of horizontal tectonics.

Chitradurga地区的新古生代的Dharwar超群岩石不整合地覆盖了西部的Mesoarchaean半岛片麻岩构造体，并与东部的Javagondanahalli Schist带在构造上并列。超级集团的岩石分为老的巴巴布丹集团和年轻的奇特拉杜尔加集团。我们支持最近将巴巴布丹岩石划分为下部砾岩-砂岩相和上部砂岩-泥岩相的关联，表明潮汐沉积环境。据推断，Chitradurga组底部的Talya砾岩层序代表着由断层控制的泥石流沉积物。盆地向东敞开，在不平坦的基底表面上发生了沉积和火山作用。Vanivilas和Ingaldhal地层可能代表了同时期和重叠的层序，表明了空间相的变化。Hiriyur地层底部的KM Kere砾岩代表了一个相系列，其中包括一系列火山－火山碎屑－火山碎屑－表观弹性联系。我们提出了一种四层地层分类方法，并引入了一个新的“ Kantaramanahalli组”，该组位于Vanivilas和Ingaldhal组之上，在Hiriyur组之下。Dharwar岩石超群的多重变形性质的解释和第二变形的优势（D 我们提出了一种四层地层分类方法，其中引入了一个新的“ Kantaramanahalli地层”，该地层位于Vanivilas和Ingaldhal地层之上，而在Hiriyur地层之下。Dharwar岩石超群的多重变形性质的解释和第二变形的优势（D 我们提出了一种四层地层分类方法，其中引入了一个新的“ Kantaramanahalli地层”，该地层位于Vanivilas和Ingaldhal地层之上，而在Hiriyur地层之下。Dharwar岩石超群的多重变形性质的解释和第二变形的优势（D₂）支持。基底表面的初始不规则性和F ₁褶皱在褶皱叠加和露头模式中起着重要作用。构造内和构造间的韧性剪切带具有主要的左旋横流分量。结构研究的结论是简单剪切（D _2b）叠加在强烈的纯剪切（D _2a）上，表明水平构造的整体压移类型。