A Field, Petrographic, and Geochemical Study of Gabbros and
... (1978). Chandler (1978) noted that the complex corresponds to an "egg-shaped" aeromagnetic high, which is consistent with the abundance of magnetite in the various lithological phases of the complex. A monzogabbro phase (sample A93-026a) of the Sandy Islands Gabbro Complex has been dated at 1828 ±3 ...
... (1978). Chandler (1978) noted that the complex corresponds to an "egg-shaped" aeromagnetic high, which is consistent with the abundance of magnetite in the various lithological phases of the complex. A monzogabbro phase (sample A93-026a) of the Sandy Islands Gabbro Complex has been dated at 1828 ±3 ...
Geology and Climate of the Galápagos Uslands
... the organisms living there must have migrated from someplace else. But since these inhabitants are endemic (found nowhere else), Darwin finally concluded that they had evolved in isolation from South American ancestors. After Darwin's visit and well into the 20th century, the origin of the islands w ...
... the organisms living there must have migrated from someplace else. But since these inhabitants are endemic (found nowhere else), Darwin finally concluded that they had evolved in isolation from South American ancestors. After Darwin's visit and well into the 20th century, the origin of the islands w ...
Central America and the Caribbean
... Many of the islands are actually the tops of underwater mountains. Others began as coral reefs that were pushed up – tectonic plates pushed land up over millions of years. As these plates shift, earthquakes and volcanic eruptions can occur and can cause damage. ...
... Many of the islands are actually the tops of underwater mountains. Others began as coral reefs that were pushed up – tectonic plates pushed land up over millions of years. As these plates shift, earthquakes and volcanic eruptions can occur and can cause damage. ...
Education and Training Over fishing The Islands lie on the Nasca
... The Islands lie on the Nasca tectonic plate and are the plate's primary land mass. Intense heat caused by the plates being pushed apart leads to eruptions which create new volcanoes and eventually form new islands ('Hot spot' theory). ...
... The Islands lie on the Nasca tectonic plate and are the plate's primary land mass. Intense heat caused by the plates being pushed apart leads to eruptions which create new volcanoes and eventually form new islands ('Hot spot' theory). ...
Bonin Islands
The Bonin Islands, also known as the Ogasawara Islands (小笠原群島, Ogasawara Guntō), are an archipelago of over 30 subtropical and tropical islands, some 1,000 kilometres (540 nmi; 620 mi) directly south of Tokyo, Japan. The name ""Bonin Islands"" comes from the Japanese word bunin (an archaic reading of 無人 mujin), meaning ""no people"" or ""uninhabited"". The only inhabited islands of the group are Chichi-jima (父島), the seat of the municipal government, and Haha-jima (母島), which includes Ogasawara Village.Ogasawara Municipality (mura) and Ogasawara Subprefecture (Tokyo Metropolis) take their names from the Ogasawara Group. However, Ogasawara Archipelago (小笠原諸島, Ogasawara shotō), may also be a wider collective term that includes other islands in Ogasawara Municipality, such as the Volcano Islands, along with other small, uninhabited and isolated islands. Geographically speaking, all of these islands are part of the Nanpō Islands.A total population of 2,440, comprising 2,000 on Chichi-jima and 440 on Haha-jima, lives in the Ogasawara Group, which have a total area of 84 square kilometres (32 sq mi).Because the Ogasawara Islands have never been connected to a continent, many of their animals and plants have undergone unique evolutionary processes. This has led to the islands' nickname of the ""The Galápagos of the Orient"", and their nomination as a natural World Heritage Site on June 24, 2011. The giant squid (genus Architeuthis) was filmed off the Ogasawara Islands for the first time in the wild on September 27, 2005, and was captured in December 2006.A 25-meter-diameter radio telescope is located in Chichijima, one of the stations of the VLBI Exploration of Radio Astrometry (VERA) project, and is operated by the National Astronomical Observatory of Japan.