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Marchena Island
The island's name, Marchena Island (Spanish: ''Isla Marchena''), comes from the Spanish monk, Frey Antonio de Marchena. It has an area of 130 km2 and a maximum altitude of 343 meters. The island is not set up for visitors, although the surrounding water is used by aquatic divers on organised tours. People generally see the island as they sail around the northern part of Isabela on the way to Tower Island. Marchena is Tower Island's nearest neighbor, about 45 miles due west. Like many of the Galápagos volcanos, Marchena has a caldera. Marchena's caldera is roughly elliptical and measures , within the range of caldera sizes of the large western volcanoes. Marchena's caldera is unusual, however, in that it has been almost completely filled with young lavas, some of which has spilled over and down the sides. The oldest lava pools go back 500,000 years. See also *List of volcanoes in Ecuador A ''list'' is any set of items in a row. List or lists may also refer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galápagos Islands
The Galápagos Islands (Spanish: , , ) are an archipelago of volcanic islands. They are distributed on each side of the equator in the Pacific Ocean, surrounding the centre of the Western Hemisphere, and are part of the Republic of Ecuador. Located west of continental Ecuador, the islands are known for their large number of endemic species that were studied by Charles Darwin during the second voyage of HMS ''Beagle''. His observations and collections contributed to the inception of Darwin's theory of evolution by means of natural selection. The Galápagos Islands and their surrounding waters form the Galápagos Province of Ecuador, the Galápagos National Park, and the Galápagos Marine Reserve. The principal language on the islands is Spanish. The islands have a population of slightly over 25,000. The first recorded visit to the islands happened by chance in 1535, when Fray Tomás de Berlanga, the Bishop of Panamá, was surprised to find this undiscovered land on a vo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genovesa Island
Genovesa Island (Spanish: ''Isla Genovesa''), referred to in English as Tower Island, is a shield volcano in the Galápagos Islands in the eastern Pacific Ocean. The island occupies about , and its maximum elevation is . The horse-shoe shaped island has a volcanic caldera whose wall has collapsed, forming the Great Darwin Bay, surrounded by cliffs. Lake Arcturus, filled with salt water, lies in the centre, and sediment within this crater lake is less than 6,000 years old. Although no historical eruptions are known from Genovesa, there are very young lava flows on the flanks of the volcano. The official Spanish name "Genovesa" is from the Italian city of Genoa, in honor of Christopher Columbus. The English name "Tower" is presumably a corruption of "Downes". The island's position was reported by John Downes of the USS ''Essex'' in 1813, during the War of 1812, and the name "Dowers's" appeared in 1815, presumably a misspelled reference to Downes. After passing through "Do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calderas Of The Galápagos Islands
A caldera ( ) is a large cauldron-like hollow that forms shortly after the emptying of a magma chamber in a volcano eruption. When large volumes of magma are erupted over a short time, structural support for the rock above the magma chamber is gone. The ground surface then collapses into the emptied or partially emptied magma chamber, leaving a large depression at the surface (from one to dozens of kilometers in diameter). Although sometimes described as a crater, the feature is actually a type of sinkhole, as it is formed through subsidence and collapse rather than an explosion or impact. Compared to the thousands of volcanic eruptions that occur each century, the formation of a caldera is a rare event, occurring only a few times per century. Only seven caldera-forming collapses are known to have occurred between 1911 and 2016. More recently, a caldera collapse occurred at Kīlauea, Hawaii in 2018. Etymology The term ''caldera'' comes from Spanish ', and Latin ', meaning "coo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanoes Of The Galápagos Islands
The Galápagos Islands are an isolated set of volcanoes, consisting of shield volcanoes and lava plateaus, located west of Ecuador. They are driven by the Galápagos hotspot, and are between 4.2 million and 700,000 years of age. The largest island, Isabela, consists of six coalesced shield volcanoes, each delineated by a large summit caldera. Española, the oldest island, and Fernandina, the youngest, are also shield volcanoes, as are most of the other islands in the chain. The Galápagos Islands are perched on a large lava plateau known as the Galápagos Platform, which creates a shallow-water depth of at the base of the islands, which stretch over a -long diameter. Since Charles Darwin's famous visit to the islands in 1835, over 60 recorded eruptions have occurred in the islands, from six different shield volcanoes. Of the 21 emergent volcanoes, 13 are considered active. The Galápagos are geologically young for such a big chain, and the pattern of their rift zones follows ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uninhabited Islands Of Ecuador
The list of uninhabited regions includes a number of places around the globe. The list changes year over year as human beings migrate into formerly uninhabited regions, or migrate out of formerly inhabited regions. List As a group, the list of uninhabited places are called the "nonecumene". This is a special geography term which means the uninhabited area of the world. * Virtually all of the Ocean *Virtually all of Antarctica *Most of The Arctic *Most of Greenland *Most of The Sahara * Antipodes Islands * Ashmore and Cartier Islands * Bajo Nuevo Bank * Baker Island * Ball's Pyramid * Balleny Islands * Big Major Cay * Bouvet Island * Much of the interior of Brazil * Caroline Island * Clipperton Island * The semi-arid regions and deserts of Australia * Devon Island * Much of Eastern Oregon * Elephant Island * Elobey Chico * Ernst Thälmann Island * Much of Fiordland, New Zealand * Goa Island * Gough Island * Hans Island * Harmil * Hashima Island * Hatutu * Heard Island and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Islands Of The Galápagos Islands
An island or isle is a piece of subcontinental land completely surrounded by water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island in a river or a lake island may be called an eyot or ait, and a small island off the coast may be called a holm. Sedimentary islands in the Ganges Delta are called chars. A grouping of geographically or geologically related islands, such as the Philippines, is referred to as an archipelago. There are two main types of islands in the sea: continental islands and oceanic islands. There are also artificial islands (man-made islands). There are about 900,000 official islands in the world. This number consists of all the officially-reported islands of each country. The total number of islands in the world is unknown. There may be hundreds of thousands of tiny islands that are unknown and uncounted. The number of sea islands in the world is estimated to be more than 200,000. The t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Volcanoes In Ecuador
A ''list'' is any set of items in a row. List or lists may also refer to: People * List (surname) Organizations * List College, an undergraduate division of the Jewish Theological Seminary of America * SC Germania List, German rugby union club Other uses * Angle of list, the leaning to either port or starboard of a ship * List (information), an ordered collection of pieces of information ** List (abstract data type), a method to organize data in computer science * List on Sylt, previously called List, the northernmost village in Germany, on the island of Sylt * ''List'', an alternative term for ''roll'' in flight dynamics * To ''list'' a building, etc., in the UK it means to designate it a listed building that may not be altered without permission * Lists (jousting), the barriers used to designate the tournament area where medieval knights jousted * ''The Book of Lists'', an American series of books with unusual lists See also * The List (other) * Listing (di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caldera
A caldera ( ) is a large cauldron-like hollow that forms shortly after the emptying of a magma chamber in a volcano eruption. When large volumes of magma are erupted over a short time, structural support for the rock above the magma chamber is gone. The ground surface then collapses into the emptied or partially emptied magma chamber, leaving a large depression at the surface (from one to dozens of kilometers in diameter). Although sometimes described as a Volcanic crater, crater, the feature is actually a type of sinkhole, as it is formed through subsidence and collapse rather than an explosion or impact. Compared to the thousands of volcanic eruptions that occur each century, the formation of a caldera is a rare event, occurring only a few times per century. Only seven caldera-forming collapses are known to have occurred between 1911 and 2016. More recently, a caldera collapse occurred at Kīlauea, Hawaii in 2018. Etymology The term ''caldera'' comes from Spanish language, S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isabela Island (Galápagos)
Isabela Island () is the largest island of the Galápagos Islands, Galápagos with an area of and length of , almost four times larger than Santa Cruz, the second largest of the archipelago. Isabela Island is larger than every other island in the Galápagos combined. It was named after Queen Isabella I of Castile. The island straddles the equator. This island was originally named Albemarle Island for the Duke of Albemarle by Ambrose Cowley, one of the first Europeans to set foot on the islands, in 1684. Geology One of the youngest islands, Isabela is located on the western edge of the archipelago near the Galápagos hotspot. At approximately 1 million years old, the seahorse-shaped island was formed by the merger of six shield volcanoes; Alcedo Volcano, Alcedo, Cerro Azul (Ecuador volcano), Cerro Azul, Darwin, Volcán Ecuador, Ecuador, Sierra Negra (Galápagos), Sierra Negra, and Volcán Wolf, Wolf. All of these volcanoes except Ecuador are still active, making it one of ... [...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] |
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