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Argyre Quadrangle
The Argyre quadrangle is one of a series of 30 quadrangle maps of Mars used by the United States Geological Survey (USGS) Astrogeology Research Program. The Argyre quadrangle is also referred to as MC-26 (Mars Chart-26). It contains Argyre Planitia and part of Noachis Terra. Name The word Argyre is named after a legendary silver at the mouth of the Ganges-- Galle_crater,_which_resembles_a_ rakan,_Berma. The_Argyre_quadrangle_covers_the_area_from_0°_to_60°_west_longitude_and_from_30°_to_65°_south_latitude_on_Mars.__It_contains_Galle_(Martian_crater)">Galle_crater,_which_resembles_a_smiley">smiley_face_and_the_ rakan,_Berma. The_Argyre_quadrangle_covers_the_area_from_0°_to_60°_west_longitude_and_from_30°_to_65°_south_latitude_on_Mars.__It_contains_Galle_(Martian_crater)">Galle_crater,_which_resembles_a_smiley">smiley_face_and_the_Argyre_Planitia">Argyre_basin,_a_giant_impact_crater.__Research_published_in_the_journal_''Icarus_(journal).html" ;"title="Argyre_Plani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quadrangle (geography)
A "quadrangle" is a topographic map produced by the United States Geological Survey (USGS) covering the United States. The maps are usually named after local physiographic features. The shorthand "quad" is also used, especially with the name of the map; for example, "the Ranger Creek, Texas quad". From approximately 1947-1992, the USGS produced the 7.5 minute series, with each map covering an area one-quarter of the older 15-minute quad series, which it replaced. A 7.5 minute quadrangle map covers an area of . Both map series were produced via photogrammetric analysis of aerial photography using stereoplotters supplemented by field surveys. These maps employ the 1927 North American Datum (NAD27); conversion or a change in settings is necessary when using a GPS which by default employ the WGS84 geodetic datum. Beginning in 2009, the USGS made available digital versions of 7.5 minute quadrangle maps based on GIS data that use the NAD83 datum, which is typically within one meter of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magma
Magma () is the molten or semi-molten natural material from which all igneous rocks are formed. Magma is found beneath the surface of the Earth, and evidence of magmatism has also been discovered on other terrestrial planets and some natural satellites. Besides molten rock, magma may also contain suspended crystals and gas bubbles. Magma is produced by melting of the mantle or the crust in various tectonic settings, which on Earth include subduction zones, continental rift zones, mid-ocean ridges and hotspots. Mantle and crustal melts migrate upwards through the crust where they are thought to be stored in magma chambers or trans-crustal crystal-rich mush zones. During magma's storage in the crust, its composition may be modified by fractional crystallization, contamination with crustal melts, magma mixing, and degassing. Following its ascent through the crust, magma may feed a volcano and be extruded as lava, or it may solidify underground to form an intrusion, such as a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Esker
An esker, eskar, eschar, or os, sometimes called an ''asar'', ''osar'', or ''serpent kame'', is a long, winding ridge of stratified sand and gravel, examples of which occur in glaciated and formerly glaciated regions of Europe and North America. Eskers are frequently several kilometres long and, because of their uniform shape, look like railway embankments. Etymology The term ''esker'' is derived from the Irish word ''eiscir'' (Old Irish: ''escir''), which means "ridge or elevation, especially one separating two plains or depressed surfaces". The Irish word was and is used particularly to describe long sinuous ridges, which are now known to be deposits of fluvio-glacial material. The best-known example of such an ''eiscir'' is the '' Eiscir Riada'', which runs nearly the whole width of Ireland from Dublin to Galway, a distance of , and is still closely followed by the main Dublin-Galway road The synonym ''os'' comes from the Swedish word ''ås'', "ridge". Geology Most eske ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drumlin
A drumlin, from the Irish word ''droimnín'' ("littlest ridge"), first recorded in 1833, in the classical sense is an elongated hill in the shape of an inverted spoon or half-buried egg formed by glacial ice acting on underlying unconsolidated till or ground moraine. Assemblages of drumlins are referred to as fields or swarms; they can create a landscape which is often described as having a 'basket of eggs topography'. The low ground between two drumlins is known as a dungeon; dungeons have colder microclimates in winter from settling cold air. Morphology Drumlins occur in various shapes and sizes, including symmetrical (about the long axis), spindle, parabolic forms, and transverse asymmetrical forms. Generally, they are elongated, oval-shaped hills, with a long axis parallel to the orientation of ice flow and with an up-ice (stoss) face that is generally steeper than the down-ice (lee) face. Drumlins are typically 250 to 1,000 meters long and between 120 and 300 meters wide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Permafrost
Permafrost is ground that continuously remains below 0 °C (32 °F) for two or more years, located on land or under the ocean. Most common in the Northern Hemisphere, around 15% of the Northern Hemisphere or 11% of the global surface is underlain by permafrost, with the total area of around 18 million km2. This includes substantial areas of Alaska, Greenland, Canada and Siberia. It can also be located on mountaintops in the Southern Hemisphere and beneath ice-free areas in the Antarctic. Permafrost does not have to be the first layer that is on the ground. It can be from an inch to several miles deep under the Earth's surface. It frequently occurs in ground ice, but it can also be present in non-porous bedrock. Permafrost is formed from ice holding various types of soil, sand, and rock in combination. Permafrost contains large amounts of biomass and decomposed biomass that has been stored as methane and carbon dioxide, making tundra soil a carbon sink. As global war ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arkhangelsky Crater , a crater on Mars named after him
{{disambiguation, geo ...
Arkhangelsky (masculine), Arkhangelskaya (feminine), or Arkhangelskoye (neuter) may refer to: People *Arkhangelsky (surname) Places *Arkhangelsky District, a district in the Republic of Bashkortostan, Russia *Arkhangelsky (rural locality) (''Arkhangelskaya'', ''Arkhangelskoye''), name of several rural localities in Russia *Arkhangelsk Oblast (''Arkhangelskaya oblast''), a federal subject of Russia Other uses *Arkhangelskoye Palace, a historical estate near Moscow, Russia *Arkhangelski, a Soviet military design bureau led by Alexander Arkhangelsky *Arkhangelsky Ar-2, a bomber designed by this design bureau *Arkhangelsky (crater) Arkhangelsky (masculine), Arkhangelskaya (feminine), or Arkhangelskoye (neuter) may refer to: People *Arkhangelsky (surname) Places *Arkhangelsky District, a district in the Republic of Bashkortostan, Russia *Arkhangelsky (rural locality) (''Arkha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nereidum Montes
The Nereidum Montes is a mountain range on Mars. It stretches 1,143 km, northeast of Argyre Planitia. It is in the Argyre quadrangle. The mountains are named after a Classical albedo feature. Nereidum Montes has gullies in some areas. A hummocky relief resembling Veiki moraines has been found in Nereidum Montes. The relief is hypothesized to result very much like Veiki moraines from the melting of a martian glacier. Image:Wikiargyragullies.JPG, Gullies on a massif in the Nereidum Montes, as seen by Mars Reconnaissance Orbiter's CTX. Image:Surface features in Argyre.jpg, Surface in Argyre quadrangle as seen by HiRISE, under the HiWish program HiWish is a program created by NASA so that anyone can suggest a place for the HiRISE camera on the Mars Reconnaissance Orbiter to photograph. It was started in January 2010. In the first few months of the program 3000 people signed up to use HiRIS .... Image is located in Nereidum Montes. This is the image of the surface from a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HiWish Program
HiWish is a program created by NASA so that anyone can suggest a place for the HiRISE camera on the Mars Reconnaissance Orbiter to photograph. It was started in January 2010. In the first few months of the program 3000 people signed up to use HiRISE. The first images were released in April 2010. Over 12,000 suggestions were made by the public; suggestions were made for targets in each of the 30 quadrangles of Mars. Selected images released were used for three talks at the 16th Annual International Mars Society Convention. Below are some of the over 4,224 images that have been released from the HiWish program as of March 2016. Glacial features Some landscapes look just like glaciers moving out of mountain valleys on Earth. Some have a hollowed-out appearance, looking like a glacier after almost all the ice has disappeared. What is left are the moraines—the dirt and debris carried by the glacier. The center is hollowed out because the ice is mostly gone. These supposed alp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jezza Crater
Jezza may refer to: * Jezža (crater), a crater in the Argyre quadrangle of Mars * Alex Jesaulenko (born 1945), Australian rules footballer nicknamed Jezza * Jezza, a nickname for people named Jeremy in Britain **Jeremy Clarkson (born 1960), English broadcaster, journalist and writer nicknamed Jezza **Jeremy Corbyn (born 1949), British politician and former leader of the Labour Party, nicknamed Jezza **Jeremy Kyle (born 1965), English radio and television presenter nicknamed Jezza * Jezza Uepa, Nauruan powerlifting medalist in the 2011 Pacific Games * Jezza Neumann, 2011 recipient of the Rory Peck Award * Jezza Baron, squad member of the Philippine Fuego España F.C. * Jezza, main character in the British children's TV series ''Barking!'' * ''Jezza'', a 1991 picture book illustrated by Kym Lardner See also * Ježa, a settlement in Ljubljana, Slovenia * Jezza, a settlement near Kampala, Uganda * Jez (nickname) As a nickname, Jez most commonly is a diminutive form of the given ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green Crater
Green is an impact crater in the Argyre quadrangle of Mars. It is named after Nathan E. Green, a British astronomer (1823-1899). Description Debris flows have been observed on some of the dunes in this crater. Some researchers believe that they may be caused by liquid water. Liquid water could be stable for short periods of time in the summer in the southern hemisphere of Mars. These gully-like debris flows may be due to small amounts of ice melting.Reiss, D, R. Jaumann. 2003. Recent debris flows on Mars: Seasonal observations of the Russell Crater dune field. Geophysical Research Letters: 30, 1321. Wikigreeneast.jpg, East side of Green crater, as seen by CTX camera (on MRO). Wikigreen.jpg, Green crater, as seen by CTX camera. Dark dots are dunes. Wikigreendunes.jpg, Dunes in Green crater, as seen by CTX camera. This is an enlargement of the previous image. Thin dark lines are dust devil tracks. The crater on the right is within Green crater. Some old glaciers are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CTX (camera)
''Mars Reconnaissance Orbiter'' (MRO) is a spacecraft designed to study the geology and climate of Mars, provide reconnaissance of future landing sites, and relay data from surface missions back to Earth. It was launched on August 12, 2005, and reached Mars on March 10, 2006. In November 2006, after five months of aerobraking, it entered its final science orbit and began its primary science phase. The cost to develop and operate MRO through the end of its prime mission in 2010 was . The spacecraft continues to operate at Mars, far beyond its intended design life. Due to its critical role as a high-speed data-relay for ground missions, NASA intends to continue the mission as long as possible, at least through the late 2020s. Pre-launch After the twin failures of the ''Mars Climate Orbiter'' and the Mars Polar Lander missions in 1999, NASA reorganized and replanned its Mars Exploration Program. In October 2000, NASA announced its reformulated Mars plans, which reduced the numb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
