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Thomagata Patera
Thomagata Patera is a volcano on Jupiter's moon Io. It is located on Io's anti-Jupiter hemisphere at , to the east of the nearby active volcanoes Volund and Zamama. Thomagata is a kidney-shaped Ionian patera, a type of volcanic crater similar to a caldera, long, wide, and deep. The volcano is currently inactive as a thermal hotspot has never been observed at Thomagata and the bright floor of the patera suggests that it is cold enough for sulfur dioxide and sulfur to condense. Thomagata is located near the center of a low, wide mesa. The edge of the mesa rises above the surrounding plains, however the slope up to the edge of Thomagata Patera is unknown. If the floor of the patera is at the same level as the surrounding plains, the western slope of the mesa would have a grade of 2°. The morphology of this mesa and the pattern of faded lava flows along its slopes radiating away from Thomagata (at least on its eastern side) suggest that Thomagata Patera and the mesa th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomagata Patera Io
Thomagata or Fomagata was a mythical ''cacique'' who was said to have been '' zaque'' of Hunza, present-day Tunja, Colombia, then part of the Muisca Confederation. He is remembered as one of the most religious in the history of the ''zaques'', after Idacansás. Background In the centuries before the arrival of the Spanish conquistadors, the central highlands of Colombia were ruled by '' zaques'' (northern Muisca Confederation) and ''zipas'' (southern territories of the Muisca). The first confirmed human ''zaque'' and ''zipa'' were respectively Hunzahúa and Meicuchuca, inaugurated in 1450. The time before those rulers are based on Folklore. Mythography Thomagata allegedly had a tail, as that of a jaguar that reached to the ground, hence the name ''Cacique Rabón'' ("Taily Chief"). Thomagata had four ears and only one eye because he was blind on the other. Thomagata was a saint, traveling each night between Tunja and the Temple of the Sun in Sugamuxi along the Iraka Valley ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shield Volcano
A shield volcano is a type of volcano named for its low profile, resembling a warrior's shield lying on the ground. It is formed by the eruption of highly fluid (low viscosity) lava, which travels farther and forms thinner flows than the more viscous lava erupted from a stratovolcano. Repeated eruptions result in the steady accumulation of broad sheets of lava, building up the shield volcano's distinctive form. Shield volcanoes are found wherever fluid low-silica lava reaches the surface of a rocky planet. However, they are most characteristic of ocean island volcanism associated with hot spots or with continental rift volcanism. They include the largest volcanoes on earth, such as Tamu Massif and Mauna Loa. Giant shield volcanoes are found on other planets of the Solar System, including Olympus Mons on Mars and Sapas Mons on Venus. Etymology The term 'shield volcano' is taken from the German term ''Schildvulkan'', coined by the Austrian geologist Eduard Suess in 1888 an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muisca People
The Muisca (also called Chibcha) are an indigenous peoples of Colombia, indigenous people and Pre-Columbian cultures of Colombia, culture of the Altiplano Cundiboyacense, Colombia, that formed the Muisca Confederation before the Spanish conquest of the Muisca, Spanish conquest. The people spoke Muysccubun, a language of the Chibchan languages, Chibchan language family, also called ''Muysca'' and ''Mosca''. They were encountered by list of conquistadors in Colombia, conquistadors dispatched by the Spanish Empire in 1537 at the time of the Spanish conquest of the Muisca, conquest. Subgroupings of the Muisca were mostly identified by their allegiances to three great rulers: the ''zaque, hoa'', centered in Tunja, Hunza, ruling a territory roughly covering modern southern and northeastern Boyacá Department, Boyacá and southern Santander Department, Santander; the ''zipa, psihipqua'', centered in Bacatá, Muyquytá and encompassing most of modern Cundinamarca Department, Cundinama ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cacique
A ''cacique'' (Latin American ; ; feminine form: ''cacica'') was a tribal chieftain of the Taíno people, the indigenous inhabitants at European contact of the Bahamas, the Greater Antilles, and the northern Lesser Antilles. The term is a Spanish transliteration of the Taíno word ''kasike''. Cacique was initially translated as "king" or "prince" for the Spanish. In the colonial era the conquistadors and the administrators who followed them used the word generically, to refer to any leader of practically any indigenous group they encountered in the Western Hemisphere. In Hispanic and Lusophone countries, the term also has come to mean a political boss, similar to '' caudillo,'' exercising power in a system of ''caciquismo''. Spanish colonial-era caciques The Taíno word ''kasike'' descends from the Taíno word ''kassiquan'', which means "to keep house". In 1555 the word first entered the English language, defined as "prince". In Taíno culture, the ''kasike'' r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muisca Religion And Mythology
The terms Muisca religion and mythology refer to the pre-Columbian beliefs of the Muisca indigenous people of the Cordillera Oriental highlands of the Andes in the vicinity of Bogotá, Colombia. The tradition includes a selection of received myths concerning the origin and organization of the universe. Their belief system may be described as a polytheistic religion containing a very strong element of spirituality based on an epistemology of mysticism. Muisca religion Creation of the universe Bachué ("the Grandmother") is a non-material principle of creation, the will, the thought and the imagination of all the things to come. She is a similar concept to the principle of ''tao'' in the Chinese mythology. The time of ''unquyquie nxie'' ("the first thought") is the time of the cosmic origin, when the thoughts of Bague became actions. This is the time when Bague created the builders of the universe and ordered them to create. Beginning of the world The world started ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Astronomical Union
The International Astronomical Union (IAU; french: link=yes, Union astronomique internationale, UAI) is a nongovernmental organisation with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach, education, and development through global cooperation. It was founded in 1919 and is based in Paris, France. The IAU is composed of individual members, who include both professional astronomers and junior scientists, and national members, such as professional associations, national societies, or academic institutions. Individual members are organised into divisions, committees, and working groups centered on particular subdisciplines, subjects, or initiatives. As of 2018, the Union had over 13,700 individual members, spanning 90 countries, and 82 national members. Among the key activities of the IAU is serving as a forum for scientific conferences. It sponsors nine annual symposia and holds a triannual General Assembly that sets policy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planetary Nomenclature
Planetary nomenclature, like terrestrial nomenclature, is a system of uniquely identifying features on the surface of a planet or natural satellite so that the features can be easily located, described, and discussed. Since the invention of the telescope, astronomers have given names to the surface features they have discerned, especially on the Moon and Mars. To found an authority on planetary nomenclature, the International Astronomical Union (IAU) was organized in 1919 to designate and standardize names for features on Solar System bodies. How names are approved by the IAU When images are first obtained of the surface of a planet or satellite, a theme for naming features is chosen and a few important features are named, usually by members of the appropriate IAU task group (a commonly accepted planet-naming group). Later, as higher resolution images and maps become available, additional features are named at the request of investigators mapping or describing specific surfaces ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galileo (spacecraft)
''Galileo'' was an American robotic space probe that studied the planet Jupiter and its moons, as well as the asteroids Gaspra and Ida. Named after the Italian astronomer Galileo Galilei, it consisted of an orbiter and an entry probe. It was delivered into Earth orbit on October 18, 1989, by , during STS-34. ''Galileo'' arrived at Jupiter on December 7, 1995, after gravitational assist flybys of Venus and Earth, and became the first spacecraft to orbit an outer planet. The Jet Propulsion Laboratory built the ''Galileo'' spacecraft and managed the ''Galileo'' program for NASA. West Germany Messerschmitt-Bölkow-Blohm supplied the propulsion module. NASA's Ames Research Center managed the atmospheric probe, which was built by Hughes Aircraft Company. At launch, the orbiter and probe together had a mass of and stood tall. Spacecraft are normally stabilized either by spinning around a fixed axis or by maintaining a fixed orientation with reference to the Sun and a star. '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Groundwater Sapping
Groundwater sapping is a geomorphic erosion process that results in the headward migration of channels in response to near constant fluid discharge at a fixed point. The consistent flow of water displaces fine sediments which physically and chemically weathers rocks. Valleys that appear to have been created by groundwater sapping occur throughout the world in areas such as England, Colorado, Hawai’i, New Zealand, and many other places. However, it is difficult to characterize a landform as being formed exclusively by groundwater sapping due to phenomena such as pluvial runoff, plunge-pool undercutting, changes in water table level, and inconsistent groundwater flow. An example of drainage ways created purely by the outflow of subsurface fluids can be seen on the foreshores of beaches. As the surge of water and sand brought to land by a wave retreats seaward, the film of water becomes thinner until it forms rhomboid shaped patterns in the sand. Small fans form at the apex of the rhom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Escarpment
An escarpment is a steep slope or long cliff that forms as a result of faulting or erosion and separates two relatively level areas having different elevations. The terms ''scarp'' and ''scarp face'' are often used interchangeably with ''escarpment''. Some sources differentiate the two terms, with ''escarpment'' referring to the margin between two landforms, and ''scarp'' referring to a cliff or a steep slope. In this usage an escarpment is a ridge which has a gentle slope on one side and a steep scarp on the other side. More loosely, the term ''scarp'' also describes a zone between a coastal lowland and a continental plateau which shows a marked, abrupt change in elevation caused by coastal erosion at the base of the plateau. Formation and description Scarps are generally formed by one of two processes: either by differential erosion of sedimentary rocks, or by movement of the Earth's crust at a geologic fault. The first process is the more common type: the escarpment is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grade (slope)
The grade (also called slope, incline, gradient, mainfall, pitch or rise) of a physical feature, landform or constructed line refers to the tangent of the angle of that surface to the horizontal. It is a special case of the slope, where zero indicates horizontality. A larger number indicates higher or steeper degree of "tilt". Often slope is calculated as a ratio of "rise" to "run", or as a fraction ("rise over run") in which ''run'' is the horizontal distance (not the distance along the slope) and ''rise'' is the vertical distance. Slopes of existing physical features such as canyons and hillsides, stream and river banks and beds are often described as grades, but typically grades are used for human-made surfaces such as roads, landscape grading, roof pitches, railroads, aqueducts, and pedestrian or bicycle routes. The grade may refer to the longitudinal slope or the perpendicular cross slope. Nomenclature There are several ways to express slope: # as an ''angle'' of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcano
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
