Andaman Islands

The Andaman Islands are a group of islands in the Bay of Bengal, and are part of the Andaman and Nicobar Islands Union Territory of India. Port Blair is the chief community on the islands, and the administrative center of the Union Territory. The Andaman Islands form a single administrative district within the Union Territory, the Andaman district (the Nicobar district was separated and established as a new district in 1974). The population of the Andamans was 314,084 in 2001.

Geology

The Andaman Islands and the Nicobar Islands to the south form part of a range of submarine mountains, 1130 km long, running from Cape Negrais in the Arakan Yoma range of Burma, to Achin Head in Sumatra. This range separates the Bay of Bengal from the Andaman Sea, and it contains much that is geologically characteristic of the Arakan Yoma. The older rocks are early Tertiary or late Cretaceous. The newer rocks are in Ritchie's Archipelago chiefly, and contain fossils of radiolarians and foraminifera. There is coral along the coasts everywhere, and the Sentinel Islands are composed of the newer rocks with a superstructure of coral. A theory of a still continuing subsidence of the islands was formed by Kurz in 1866 and confirmed by Oldham in 1884. Signs of its continuance are found on the east coast in several places.

Related Topics:
Nicobar Islands - 1866 - 1884

~ ~ ~ ~ ~ ~ ~ ~ ~ ~