Sahul Shelf

Sahul Shelf

      stable structural shelf or platform of the ocean floor, extending from the northern coast of Australia to the island of New Guinea. A continental shelf, it was once above sea level, and its surface still bears erosional features formed when streams crossed it to the oceans. The shelf was slowly warped downward by crustal forces; overall it has subsided, as indicated by drowned atolls along its margin, which extend to depths of 2,000 feet (600 metres). The shelf's main divisions are the shallow 360,000-square-mile (930,000-square-km Arafura Shelf, covered by the Arafura Sea and Gulf of Carpentaria; the Sahul Shelf (120,000 square miles [310,800 square km]) under the Timor Sea; and the Rowley Shelf (120,000 square miles [310,800 square km]) underlying a part of the northwest Indian Ocean extending to North West Cape, Western Australia. To the north lie the deeper Timor Trough and the volcanic Lesser Sunda Islands, separating the Sahul from the Sunda Shelf. The shelf's existence was suggested as early as 1845 by G.W. Earl.

* * *

Universalium. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Sahul Shelf — The Sahul Shelf is part of the continental shelf of Sahul (the Australia New Guinea continent) and lies off the northern coast of Australia. The Sahul Shelf proper stretches northwest from Australia much of the way under the Timor Sea towards… …   Wikipedia

  • Sunda Shelf — ▪ geological formation, Asia       stable continental shelf, or platform, a southward extension of mainland Southeast Asia. Most of the platform is covered by shallow seas including the southern South China Sea, the Gulf of Thailand (Thailand,… …   Universalium

  • Australia (continent) — Sahul redirects here. For the continental shelf, see Sahul Shelf. Australia (continent) Area 8,468,300 km2 (3,269,629 sq mi) Population 31,260,000 (estim …   Wikipedia

  • Indonesia — /in deuh nee zheuh, sheuh, zee euh, doh /, n. 1. See East Indies (def. 1). 2. Republic of. Formerly, Netherlands East Indies, Dutch East Indies. a republic in the Malay Archipelago consisting of 13,677 islands, including Sumatra, Java, Sulawesi,… …   Universalium

  • New Guinea — (Papua Island) Geography Location Melanesia Coordinates …   Wikipedia

  • Oceanía Cercana — (en inglés Near Oceania) es un nuevo concepto biogeográfico utilizado para designar la parte de Oceanía que cubre la isla de Nueva Guinea y los archipiélagos que la rodean como el archipiélago Bismarck y el archipiélago de las islas Salomón.… …   Wikipedia Español

  • Wallace Line — The Wallace Line (or Wallace s Line) is a boundary that separates the zoogeographical regions of Asia and Australia. West of the line are found organisms related to Asiatic species; to the east, mostly organisms related to Australian species. The …   Wikipedia

  • Arafura Sea — The Arafura Sea is west of the Pacific Ocean overlying the continental shelf between Australia and New Guinea. It is bordered by Torres Strait and through that the Coral Sea to the east, the Gulf of Carpentaria to the south, the Timor Sea to the… …   Wikipedia

  • Max Carl Wilhelm Weber — Born December 5, 1852(1852 12 05) Died February 7, 1937(1937 02 07) (aged 84) …   Wikipedia

  • Geography of Indonesia — Indonesia is an archipelagic island country in Southeast Asia, lying between the Indian Ocean and the Pacific Ocean. It is in a strategic location astride or along major sea lanes from Indian Ocean to Pacific Ocean. The country s variations in… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”