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Volcanoes
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are diverging or converging, and most are found underwater. For example, a mid-ocean ridge, such as the Mid-Atlantic Ridge, has volcanoes caused by divergent tectonic plates whereas the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates. Volcanoes can also form where there is stretching and thinning of the crust's plates, such as in the East African Rift and the Wells Gray-Clearwater volcanic field and Rio Grande rift in North America. Volcanism away from plate boundaries has been postulated to arise from upwelling diapirs from the core–mantle boundary, deep in the Earth. This results in hotspot volcanism, of which the Hawaiian hotspot is an example. Volcanoes are usually not created where two tectonic plat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Lanoto'o
Lake Lanoto'o is a volcanic crater lake on the island of Upolu in Samoa. It is the largest lake in Samoa. The lake is surrounded by Lake Lanoto'o National Park and is designated as a wetland of international importance under the Ramsar Convention. The lake is long with a maximum depth of and an area of 11 hectares, with a water temperature of and a pH of 5.72. The crater is between 100,000 and 1 million years old. Sediment cores from the lake have been used to date the human settlement of Upolu and of Polynesia, and to study the paleoclimate and past ecology of Upolu. The lake provides an important habitat for the Pacific black duck and Spotless crake. Goldfish The goldfish (''Carassius auratus'') is a freshwater fish in the family Cyprinidae of order Cypriniformes. It is commonly kept as a pet in indoor aquariums, and is one of the most popular aquarium fish. Goldfish released into the wild have b ... were introduced during the German colonial period. References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lists Of Volcanoes
These lists cover volcanoes by type and by location. Type * List of extraterrestrial volcanoes * List of largest volcanic eruptions * List of shield volcanoes * List of stratovolcanoes * List of subglacial volcanoes * List of submarine volcanoes * List of volcanoes by elevation Location Africa *List of volcanoes in Algeria *List of volcanoes in Cameroon *List of volcanoes in Cape Verde * List of volcanoes in Chad *List of volcanoes in the Comoros * List of volcanoes in the Democratic Republic of the Congo *List of volcanoes in Djibouti * List of volcanoes in Equatorial Guinea *List of volcanoes in Eritrea *List of volcanoes in Ethiopia * List of volcanoes in Kenya *List of volcanoes in Libya * List of volcanoes in Madagascar *In Nigeria all the volcanoes are in the Biu Plateau * List of volcanoes in Réunion *List of volcanoes in Rwanda *São Tomé and Príncipe has only one volcano, Pico de São Tomé *List of volcanoes in South Africa * List of volcanoes in Sudan * List ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Fito
Mount Fito (''Mauga Fito'') is the second-highest mountain on the island of Upolu in Samoa. It is located in the O Le Pupu-Puʿe National Park in the Atua district and has a height of 1149m. Fito was long-believed to be Upolu's highest point, but a visit by the Samoa Conservation Society in 2022 determined it to be the second-highest, just 10m shorter than nearby Mount Vaivai. In 1978 a Cessna aircraft operated by South Pacific Island Airways South Pacific Island Airways (SPIA) was an airline operating flights in the Pacific including American Samoa and Hawaii with service to the west coast of U.S. and Canada as well as to Alaska, New Zealand, Guam and Tahiti from 1973 to 1987. The Fe ... crashed into the mountain, killing all 11 people on board. References Mountains of Samoa Volcanoes of Samoa Upolu Atua (district) {{Samoa-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tafua-upolu
Tafua-upolu is an active cinder cone in the Aʻana district of the island of Upolu in Samoa Samoa, officially the Independent State of Samoa; sm, Sāmoa, and until 1997 known as Western Samoa, is a Polynesian island country consisting of two main islands (Savai'i and Upolu); two smaller, inhabited islands (Manono Island, Manono an .... The name ''tafua'' is derived from the Tongan ''tofua'' (fire-mountain or volcano). Radiocarbon dating suggests it last erupted between 1300 and 1395 CE. References Mountains of Samoa Volcanoes of Samoa Cinder cones A'ana {{Samoa-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
