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Map of eastern Asia showing coastlines and major active faults (black lines). Arrows with white arrowheads show the movements of large regions (India, Tarim Basin, and South China) with respect to Eurasia. Dark black arrows pointing toward or away from one another indicate convergence or divergence across the intervening regions.

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Dinesh ^club

. . . .A collision of the India and Eurasia plates created the Himalaya. As India’s ancient northern margin slid beneath the southern edge of Eurasia, some of India’s upper crust detached from lower crust beneath it. Thus, as the lower crust of India continued to plunge beneath Eurasia’s southern margin, a stack of thin slice grew to form the Himalaya. At present, intact India lithosphere underlies the southern part of the Himalaya and the rock cropping out of the Himala consists largely of slices of India’ crust. Similarly, a collision of the southern edge of Eurasia plate in Europe with promontory on the northern edge of the African plate, which includes mot of the Italian peninsula, created the alps. . . .

Himalayas has been built as slices of India’s northern margin that has been detached from the remaining underlying, intact Indian lithosphere, as that lithosphere plunged beneath the ancient southern margin of Eurasia. Before India reached the southern edge of Eurasia, the oceanic lithosphere, which lay between India and Eurasia and carried India as a passenger, plunged beneath the southern edge of Eurasia, just as lithosphere of the Nazea plate plunges eastward beneath the Andes today. The Indian subcontinent followed that oceanic lithosphere and began to plunged beneath southern Eurasia until its buoyancy resisted subduction. ` Page 100

6 months ago. Edited 5 weeks ago.

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