Prelims-2016 (Geography Session)-Islands

  • Total 247 islands in India  204 islands in Bay of Bengal and 43 in the Arabian Sea
  • Few coral islands in the Gulf of Mannar also
  • Andaman and Nicobar Islands in Bay of Bengal consist of hard volcanic rocks
  • The middle Andaman and Nicobar Islands are the largest islands of India
  • Lakshadweep islands in the Arabian Sea are formed by corals
  • The southern – most point of India is in Nicobar Island, known as Indira Point
  • Formerly Indira point was called Pigmalion Point, it is submerged now, after 2004 Tsunami

Andaman & Nicobar Islands

Lakshadweep Islands

  • Volcanic islands representing submarine volcanism
  • Represent the surfaces of submerged folds viz. extension of Himalaya, precisely Arakan yoma fold mountains of Myanmar
  • Formed of Granite rocks & have high hills &l peaks for ex. Saddle peak
  • Equatorial climate with tropical rain-forests
  • a union of coral islands, entirely different from A & N islands
  • comprises of large number of dead corals, fringing, barrier and atoll coral reefs
  • Have calcium rich soils filled with organic limestone
  • Have scattered vegetation of palm species

Famous Islands in India

A & N IslandsContinuation of Arakan Yoma mountain range of Myanmar
Nicobar IslandsJust 147 km from Sumatra island (Indonesia)
Mazuli IslandLargest riverrine island of the world, located on Brahamaputra in Assam
New Moore IslandOn Ganges-Brahmaputra Delta region & a disputed site b/w India & Bangladesh
Sagar IslandW.B – on the continental shelf of Bay of Bengal
Wheeler IslandOdisha, Integrated Missile Test Range facility
Hope IslandOn coast of Kakinada, Andhra Pradesh — Houses Satish Dhawan Space Centre
Sriharikota IslandAndhra Pradesh – Satellite launch center
Narcondam IslandExtinct Volcano island – Andaman Sea
Barren IslandDormant Volcano island – Andaman Sea
Katchatheevu Islandforcibly given to Srilanka by India in 1974
Salasette IslandGroup of 7 islands, known as Mumbai today
Wellington IslandNaval Station  Kerala

Adam’s BridgeRama’s BridgeRama Setu 

  • a chain of limestone shoals, between Pamban Island, also known as Rameswaram Island
  • Lies off the southeastern coast of Tamil Nadu, India, and Mannar Island, off the northwestern coast of Sri Lanka

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