";s:4:"text";s:3543:" This uniquely formed island is part of a 750 mile long ridge formed about 600,000 years ago by a rift in the earth’s crust subsequently closing and extruding the molten rock thus trapped in it up to the surface. [C Christodoulou; B J Griffin; J Foden; Australian National Antarctic Research Expeditions.] The latter is a narrow arcuate welt of ridges and trenches that runs southward from New Zealand to join the Indian-Pacific mid-ocean ridge system. It is seismically active and the only place on earth where rocks
No people live there now. 1969, Varne & Rubenach 1972). Engineering Geology Special Publications Macquarie Island, subantarctic island, Tasmania, Australia, lying about 930 miles (1,500 km) southeast of the main island of Tasmania. Pap. The small and remote Macquarie Island is a part of Australia.This island has several interesting features, such as: Unique geology of the island: this island is a horst – a raised block of oceanic crust.There are not many places in the world where the oceanic crust is exposed above the sea level and Macquarie Island is the best section of oceanic crust worldwide. ** Region as classified by UNESCO Macquarie Island is a large island in the Southern Ocean. Named after an early governor of New South Wales, Lachlan Macquarie, the small size of Macquarie Island belies its importance in the history, geoscience and ecology of the Southern Ocean. Create lists, bibliographies and reviews: or Search WorldCat. Its steep escarpments, lakes, and dramatic changes in vegetation provide an outstanding spectacle of … Additional Physical Format: Online version: Mawson, Douglas, 1882-1958. Proc. Papers presented at the Macquarie Island Symposium, Hobart, May 1987. Home.
Search for more papers by this author. The geology of the island is therefore considered to be the connecting link between the ophiolites of continental environments and … Unique, near-complete section of oceanic crust, providing very important geological information of global importance. ISBN: 0642871000 9780642871008: OCLC Number: 23265157: Notes: At head of title: Australian National Antarctic Research Expeditions. The island was formed by two tectonic plates meeting and forcing each other upwards. The island became a UNESCO World Heritage Site in 1992. The first geological … Macquarie Island: from rabbits and rodents to recovery and renewal A majestic landscape Roughly half way between Tasmania and Antarctica lies World Heritage listed Macquarie Island. Search for this keyword . Map in pocket on front cover.