Tectonic plates in Himalayas

Subject: Geography

Context : A recent survey has found that a tectonic fault line that runs through Ladakh , all along the indus river , is not inactive as was previously thought.

Concept :

Movement of The Indian Tectonic Plate

• The Indian plate includes Peninsular India and the Australian continental portions.
• The subduction zone along the Himalayas forms the northern plate boundary in the form of continent-continent convergence.
• In the east, it extends through Rakinyoma Mountains (Arakan Yoma) of Myanmar towards the island arc along the Java Trench.
• The eastern margin is a spreading site lying to the east of Australia in the form of an oceanic ridge in SW Pacific.
• The Western margin follows Kirthar Mountain of Pakistan. It further extends along the Makrana coast (Pakistan and Iranian coasts) and joins the spreading site from the Red Sea rift (Red Sea rift is formed due to the divergence of Somali plate and Arabian plate) south-eastward along the Chagos Archipelago (Formed due to hotspot volcanism).
• The boundary between India and the Antarctic plate is also marked by an oceanic ridge (divergent boundary) running in roughly W-E direction and merging into the spreading site, a little south of New Zealand.