why peninsula mostly consist of relict and residual mountains?
Answers
Explanation:
Peninsular Block in Indian Subcontinent
The Indian Subcontinent constitutes a distinguishing geographic entity that can be separated into three geomorphic provinces: (a) the Indian Peninsula, (b) the Himalayas, and (c) the Indo-Gangetic Alluvial Plains. The Peninsular Plateau of India is also named as the Plateau of Peninsular India. It is one of the main physiographic elements of India. The northern boundary of the Peninsular Block may be taken as an irregular line running from Kachchh along the western flank of the Aravali Range near Delhi and then roughly parallel to the Yamuna and the Ganga as far as the Rajmahal Hills and the Ganga delta. Apart from these, the Karbi Anglong and the Meghalaya Plateau in the northeast and Rajasthan in the west are also extensions of this block. The northeastern parts are separated by the Malda fault in West Bengal from the Chotanagpur plateau. In Rajasthan, the desert and other desert-like features overlay this block. The Indian Peninsula is a triangular-shaped landscape of earliest landmass with a record of a prolonged history of erosion, denudation, and resurgent tectonic activities. The plateau ascends 100 meters in the north, ascending further to over 1,000 meters to the south, creating a prominent triangle located in the well-known downhill-moving triangle of the seashore of the Indian subcontinent. Its origin lies in the collision of Indian and Eurasian plates around 15 million years ago.