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Galapagos Rise
The Galapagos Rise is a divergent boundary located between the South American coast and the triple junction of the Nazca Plate, the Cocos Plate, and the Pacific Plate. The volcanically active Galapagos Islands exist on the Galápagos hotspot above the Galapagos Rise. The Galapagos Microplate is a small separate plate on the rise just to the southeast of the triple junction. The Cocos Ridge trends northeasterly from the Galapagos to the coast of Costa Rica and Panama. The Carnegie Ridge trends almost due east to the Ecuadorian coast. The Galapagos Rise is a currently active ridge. Fernandina Volcano on Fernandina Island, the most westerly island of the chain erupted on May 12, 2005 ejecting a column of ash that rose to a height of seven km from a fissure on the west side of the volcano. Volcanic ash fell on neighboring Isabela Island. Alcedo Volcano Alcedo Volcano is one of the six coalescing shield volcanoes that make up Isabela Island in the Galapagos. The remote loc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galapagos Rise
The Galapagos Rise is a divergent boundary located between the South American coast and the triple junction of the Nazca Plate, the Cocos Plate, and the Pacific Plate. The volcanically active Galapagos Islands exist on the Galápagos hotspot above the Galapagos Rise. The Galapagos Microplate is a small separate plate on the rise just to the southeast of the triple junction. The Cocos Ridge trends northeasterly from the Galapagos to the coast of Costa Rica and Panama. The Carnegie Ridge trends almost due east to the Ecuadorian coast. The Galapagos Rise is a currently active ridge. Fernandina Volcano on Fernandina Island, the most westerly island of the chain erupted on May 12, 2005 ejecting a column of ash that rose to a height of seven km from a fissure on the west side of the volcano. Volcanic ash fell on neighboring Isabela Island. Alcedo Volcano Alcedo Volcano is one of the six coalescing shield volcanoes that make up Isabela Island in the Galapagos. The remote loc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isabela Island (Ecuador)
Isabela Island may refer to: *Isabela Island (Galápagos) *Isabela Island (Philippines) Isabel Island is an inhabited island in the province of Romblon in the Philippines. It is part of barangay Nasunogan in the municipality of Banton. In the 1918 census, the island together with its sister island Carlota Island constituted one sing ... See also * Isabel Island (other) {{geodis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fernandina Island
Fernandina Island (Spanish: ''Isla Fernandina'', named after King Ferdinand of Spain, the sponsor of Christopher Columbus) (formerly known in English as Narborough Island, after John Narborough) is the third largest, and youngest, island of the Galápagos Islands, as well as the furthest west. Like the others, the island was formed by the Galápagos hotspot. The island is an active shield volcano that has most recently been erupting since April 11, 2009. On February 14, 1825, while anchored in Banks Bay, Captain Benjamin Morrell recorded one of the largest eruptions in Galápagos' history at Fernandina Volcano. His ship escaped to safety and his account of the event was preserved. Fernandina has an area of and a height of , with a summit caldera about wide. The caldera underwent a collapse in 1968, when parts of the caldera floor dropped . A small lake has intermittently occupied the northern caldera floor, most recently in 1988. Due to its recent volcanic activity, the islan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecuador
Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecuador, which literally translates as "Republic of the Equator"; Quechua: ''Ikwadur Ripuwlika''; Shuar: ''Ekuatur Nunka''), is a country in northwestern South America, bordered by Colombia on the north, Peru on the east and south, and the Pacific Ocean on the west. Ecuador also includes the Galápagos Islands in the Pacific, about west of the mainland. The country's capital and largest city is Quito. The territories of modern-day Ecuador were once home to a variety of Indigenous groups that were gradually incorporated into the Inca Empire during the 15th century. The territory was colonized by Spain during the 16th century, achieving independence in 1820 as part of Gran Colombia, from which it emerged as its own sovereign state in 1830. The legacy of both empires is reflected in Ecuador's ethnically diverse population, with most of its mill ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carnegie Ridge
The Carnegie Ridge is an aseismic ridge on the Nazca Plate that is being subducted beneath the South American Plate. The ridge is thought to be a result of the passage of the Nazca Plate over the Galapagos hotspot. It is named for the research vessel '' Carnegie'', which discovered it in 1929. Extent The Carnegie Ridge is seen to extend eastwards over 1,000 km from the Galapagos islands to the Colombia-Ecuador trench and is interpreted to continue beneath northern Ecuador for about a further 700 km. The subducted extent is disputed, with some workers arguing that there is no evidence of a subducted ridge beneath Ecuador extending more than about 60 km from the trench. Structure The Carnegie Ridge consists of thickened oceanic crust. Wide-angle seismic reflection and refraction data acquired over the central and eastern part of the ridge give crustal thicknesses of 13 km and 19 km respectively for crust that has estimated ages of about 11 Ma and 20 Ma. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panama
Panama ( , ; es, link=no, Panamá ), officially the Republic of Panama ( es, República de Panamá), is a transcontinental country spanning the southern part of North America and the northern part of South America. It is bordered by Costa Rica to the west, Colombia to the southeast, the Caribbean Sea to the north, and the Pacific Ocean to the south. Its capital and largest city is Panama City, whose metropolitan area is home to nearly half the country's million people. Panama was inhabited by indigenous tribes before Spanish colonists arrived in the 16th century. It broke away from Spain in 1821 and joined the Republic of Gran Colombia, a union of Nueva Granada, Ecuador, and Venezuela. After Gran Colombia dissolved in 1831, Panama and Nueva Granada eventually became the Republic of Colombia. With the backing of the United States, Panama seceded from Colombia in 1903, allowing the construction of the Panama Canal to be completed by the United States Army Corps of En ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Costa Rica
Costa Rica (, ; ; literally "Rich Coast"), officially the Republic of Costa Rica ( es, República de Costa Rica), is a country in the Central American region of North America, bordered by Nicaragua to the north, the Caribbean Sea to the northeast, Panama to the southeast, the Pacific Ocean to the southwest, and Maritime boundary, maritime border with Ecuador to the south of Cocos Island. It has a population of around five million in a land area of . An estimated 333,980 people live in the capital and largest city, San José, Costa Rica, San José, with around two million people in the surrounding metropolitan area. The sovereign state is a Unitary state, unitary Presidential system, presidential Constitution of Costa Rica, constitutional republic. It has a long-standing and stable democracy and a highly educated workforce. The country spends roughly 6.9% of its budget (2016) on education, compared to a global average of 4.4%. Its economy, once heavily dependent on agricultu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cocos Ridge
Cocos may refer to: Geography * Cocos, Bahia, Brazil * Cocos, Quebradillas, Puerto Rico, a barrio * Cocos Island (other) ** Cocos (Keeling) Islands, a territory of Australia in the Indian Ocean *** Shire of Cocos, a local government area * Cocos Lagoon, south of Guam * Cocos Plate, a tectonic plate beneath the Pacific Ocean * rivers in Romania: ** Cocoș, a tributary of the Aita in Covasna County ** Cocoș (Constanța), a river in Constanța County ** Cocoș, a tributary of the Ilișoara Mare in Mureș County Biology * ''Cocos'' (plant), a plant genus with the coconut as its only accepted living species * '' Eoophyla cocos'', a moth of family Crambidae * '' Macrosporium cocos'', a fungus of family Pleosporaceae * '' Pseudoepicoccum cocos'', a fungus of family Incertae sedis People * Cocos Malays, an ethnic group inhabiting the Cocos (Keeling) Islands * Orang Cocos, an ethnic group in Malaysia descended from Cocos Malay immigrants * Roxana Cocoș (born 1989), Romani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galápagos Hotspot
The Galápagos hotspot is a volcanic hotspot in the East Pacific Ocean responsible for the creation of the Galápagos Islands as well as three major aseismic ridge systems, Carnegie, Cocos and Malpelo which are on two tectonic plates. The hotspot is located near the Equator on the Nazca Plate not far from the divergent plate boundary with the Cocos Plate. The tectonic setting of the hotspot is complicated by the Galapagos Triple Junction of the Nazca and Cocos plates with the Pacific Plate. The movement of the plates over the hotspot is determined not solely by the spreading along the ridge but also by the relative motion between the Pacific Plate and the Cocos and Nazca Plates. The hotspot is believed to be over 20 million years old and in that time there has been interaction between the hotspot, both of these plates, and the divergent plate boundary, at the Galapagos Spreading Centre. Lavas from the hotspot do not exhibit the homogeneous nature of many hotspots; instead the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Divergent Boundary
In plate tectonics, a divergent boundary or divergent plate boundary (also known as a constructive boundary or an extensional boundary) is a linear feature that exists between two tectonic plates that are moving away from each other. Divergent boundaries within continents initially produce rifts, which eventually become rift valleys. Most active divergent plate boundaries occur between oceanic plates and exist as mid-oceanic ridges. Current research indicates that complex convection within the Earth's mantle allows material to rise to the base of the lithosphere beneath each divergent plate boundary. This supplies the area with huge amounts of heat and a reduction in pressure that melts rock from the asthenosphere (or upper mantle) beneath the rift area, forming large flood basalt or lava flows. Each eruption occurs in only a part of the plate boundary at any one time, but when it does occur, it fills in the opening gap as the two opposing plates move away from each other. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
