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Exposed gneiss hillock at Lal Bagh Geological Map of South India – The Dharwars of South India. The Archean gneisses and schists, which are the oldest rocks of the Indian Shield, constitute a considerable area of Peninsular India. The Dharwar (Super Group) and the Peninsular Gneissic Complex are the classified groups of the Precambrian rocks ...
[127] [128] On 14 April 1951, the Madras and Southern Mahratta Railway, the South Indian Railway, and the Mysore State Railway were merged to form the Southern Railway, the first zone of Indian Railways. [129] The Western was established on 5 November 1951, the South Central zone on 2 October 1966, and the South Western zone on 1 April 2003. [130]
Due to continental drift, the India Plate split from Madagascar and collided with the Eurasian Plate resulting in the formation of the Himalayas.. The earliest phase of tectonic evolution was marked by the cooling and solidification of the upper crust of the earth's surface in the Archaean Era (prior to 2.5 billion years) which is represented by the exposure of gneisses and granites especially ...
The location map of the Dharwar Craton. The shaded area represents the Dharwar Craton. Generated from GeoMapApp (Ryan et al., 2009). [1]The Dharwar Craton is an Archean continental crust craton formed between 3.6-2.5 billion years ago (), which is located in southern India and considered the oldest part of the Indian peninsula.
NASA satellite photo of South India, 31 January 2003.. The Geography of South India comprises the diverse topological and climatic patterns of South India.South India is a peninsula in the shape of a vast inverted triangle, bounded on the west by the Arabian Sea, on the east by the Bay of Bengal and on the north by the Vindhya and Satpura ranges.
South India, also known as Southern India or Peninsular India, is the southern part of the Deccan Peninsula in India encompassing the states of Andhra Pradesh, Karnataka, Kerala, Tamil Nadu and Telangana as well as the union territories of Lakshadweep and Puducherry, occupying 19.31% of India's area (635,780 km 2 or 245,480 sq mi) and 20% of India's population.
The Indian Shield is part of the Indian Craton and occupies two-thirds of the southern Indian peninsula. The shield has remained relatively stable since its formation, over 3.5 billion years ago. It is bounded on the west, south and east by the present day coastline and Phanerozoic sediment cover. On the north, it is bounded by the Proterozoic ...
Augen gneiss, from the German: Augen, meaning "eyes", is a gneiss resulting from metamorphism of granite, which contains characteristic elliptic or lenticular shear-bound grains (porphyroclasts), normally feldspar, surrounded by finer grained material. The finer grained material deforms around the more resistant feldspar grains to produce this ...