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Torlesse Islands

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The New Britain Trench (also known as Bougainville-New Britain Trench or New Britain-Solomon Trench ) has formed due to subduction of the floor of the Solomon Sea and has some of the highest current seismic activity in the world.

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14-585: The Torlesse Islands are an archipelago in the Solomon Sea . Politically they belong to Milne Bay Province in the southeastern region of Papua New Guinea . They are 13 km away from Misima and 5 km west of Deboyne Islands . The aggregate land area of the seven islands is 2.08 km. The main village is Tinolan. it is inhabited by a family from Panaeati Island who grow Copra . This article about an island in Papua New Guinea

28-447: A minor contribution from land plants also help. Species observed at 1 km (0.62 mi) depth included a free swimming Teuthidodrilus (squidworm). and ulmarid jellyfish . At 8.7 km (5.4 mi) depth starfish and shrimps believed to be either of the family Penaeidae or the order Mysida were observed. There were 5 amphipod species including Alicella gigantea . Novel viruses and bacteria have been characterised in

42-399: A recent series of eruptions in 1994 that destroyed the port of Rabaul . The diversity of life forms discovered living on top of the trench floor sediments and scavenging communities is high, with during one study at 1 km (0.62 mi) depth 35 species observed, with biodiversity decreasing at 3.7 km (2.3 mi) depth before increasing again at 8.2 km (5.1 mi). This

56-671: Is a stub . You can help Misplaced Pages by expanding it . Solomon Sea The Solomon Sea is a sea located within the Pacific Ocean . It lies between Papua New Guinea and Solomon Islands . Many major battles were fought there during World War II . The International Hydrographic Organization defines the limits of the Solomon Sea as follows: On the Northwest. By the Southeast limit of Bismarck Sea [A line from

70-512: Is likely to reflect several factors. The trench is situated within the southern West Pacific Warm Pool characterized by sea surface temperature greater than 28°C and because of its closeness to tropical land, the land is subject to high rain fall. The trench is only 55 km (34 mi) offshore from New Britain with an almost uniform slope into it of about 8°. Hence there is a very high organic carbon load, sourced more than other trenches from soil organic matter, although marine phytoplankton and

84-778: The South Bismarck Plate . It is possible that the collision to the west of the 30–35 km (19–22 mi) thick Ontong Java Plateau with the Vitiaz Trench from about 25 million years ago initiated this polarity reversal. The rates of subduction and roll back are high and are currently for the New Britain Trench, a subduction velocity of 65–120 mm (2.6–4.7 in)/year, a convergence velocity of 2–48 mm (0.079–1.890 in)/year, and spreading deformation rate in its arc-back- arc area of 10–74 mm (0.39–2.91 in)/year. In various parts of

98-860: The Vanuatu subduction zone and are all cases of subduction polarity reversal as originally the Pacific Plate subducted under the Indo-Australian Plate 's minor plates such as the North Bismarck Plate . However now minor plate subduction is associated with the Australian Plate subducting under the Pacific Plate. In this case it is the Solomon Sea Plate and Trobriand Plate subducting under

112-547: The 100-fathom [600 ft; 183 m] line and thence along the Southern edges of Uluma (Suckling) Reef and those extending to the Eastward as far as the Southeast point of Lawik Reef ( 11°43.5′S 153°56.5′E  /  11.7250°S 153.9417°E  / -11.7250; 153.9417 ) off Tagula Island [ Vanatinai ], thence a line to the Southern extreme of Rennell Island and from its Eastern point to Cape Surville,

126-651: The Eastern extreme of San Cristobal Island]. On the Southwest. By the coast of New Guinea and a line from its Southeasternmost point through the Louisiade Archipelago to Rossel Island . The Solomon Sea is named after the Solomon Islands . These islands received their name "Islas Salomón" from the legend of the biblical land of Ophir — fabled as the source of King Solomon 's wealth which

140-750: The North point of Buka Island , through this island to the Northwest point of Bougainville Island , along the Southern coasts of Bougainville, Choisel [ Choiseul ], Ysabel [ Santa Isabel ], Malaita and San Cristobal [ Makira ] Islands. On the South. The Northern limit of the Coral Sea between San Cristobal Island, the Solomon Islands , and Gado-Gadoa Island, off the Southeast extreme of New Guinea [Gado-Gadoa Island near its Southeastern extreme ( 10°38′S 150°34′E  /  10.633°S 150.567°E  / -10.633; 150.567 ), down this meridian to

154-583: The Planet Deep. New Britain Trench The trench was discovered by the German research vessel SMS Planet , in 1910. The trench is 840 km (520 mi) long, curved around the south of New Britain and west of Bougainville Island in the northern Solomon Sea . The deepest point is the Planet Deep at 9,140 m (29,990 ft). The New Britain subduction zone is a continuum with

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168-535: The Southern point of New Ireland along the parallel of 4°50' South to the coast of New Britain , along its Northern coast and thence a line from its Western extreme through the Northern point of Umboi Island to Teliata Point, New Guinea ( 5°55′S 147°24′E  /  5.917°S 147.400°E  / -5.917; 147.400 )]. On the Northeast. By a line from the Southern point of New Ireland to

182-423: The trench there is up to 180 mm (7.1 in)/year of trench roll back and 20 mm (0.79 in)/year of trench advance. The New Britain subduction zone is extremely seismically active and has had more than 22 earthquakes with magnitudes equal to or larger than 7.5 since 1990. There is quite active arc volcanism with for example the active Rabaul Caldera area in the north east of New Britain having had

196-546: Was hoped to be discovered, in the first 1568 voyage by their discoverer Spanish navigator Álvaro de Mendaña de Neira . They were so named after his voyage when it was mapped. The Solomon Sea roughly corresponds with the Solomon Sea Plate , a tectonic feature, and includes the New Britain Trench , in the New Britain subduction zone , which reaches its maximum depth at 29,988 feet (9,140 m) below sea level in

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