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Argyre Quadrangle
The Argyre quadrangle is one of a series of list of quadrangles on Mars, 30 quadrangle maps of Mars used by the United States Geological Survey (USGS) Astrogeology Research Program. The Argyre quadrangle (geography), 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--[Arakan, 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), Icarus'' has found pits in Hale Crater that are caused by hot ejecta falling on ground containing ice. The pits are formed by heat forming steam that rushes out from groups of pits simultaneously, thereby blowing away from the pit ejecta. M ... [...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". A quadrangle is defined by north and south boundaries of Circle of latitude, constant latitude (which are not great circles so are curved), and by east and west boundaries of constant longitude. 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 photogrammetry, 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 d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glaciers
A glacier (; or ) is a persistent body of dense ice, a form of rock, that is constantly moving downhill under its own weight. A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries. It acquires distinguishing features, such as crevasses and seracs, as it slowly flows and deforms under stresses induced by its weight. As it moves, it abrades rock and debris from its substrate to create landforms such as cirques, moraines, or fjords. Although a glacier may flow into a body of water, it forms only on land“Glacier, N., Pronunciation.” Oxford English Dictionary, Oxford UP, June 2024, https://doi.org/10.1093/OED/7553486115. Accessed 25 Jan. 2025. and is distinct from the much thinner sea ice and lake ice that form on the surface of bodies of water. On Earth, 99% of glacial ice is contained within vast ice sheets (also known as "continental glaciers") in the polar regions, but glaciers may be found in mountain ranges on every c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salts
In chemistry, a salt or ionic compound is a chemical compound consisting of an assembly of positively charged ions ( cations) and negatively charged ions (anions), which results in a compound with no net electric charge (electrically neutral). The constituent ions are held together by electrostatic forces termed ionic bonds. The component ions in a salt can be either inorganic, such as chloride (Cl−), or organic, such as acetate (). Each ion can be either monatomic, such as sodium (Na+) and chloride (Cl−) in sodium chloride, or polyatomic, such as ammonium () and carbonate () ions in ammonium carbonate. Salts containing basic ions hydroxide (OH−) or oxide (O2−) are classified as bases, such as sodium hydroxide and potassium oxide. Individual ions within a salt usually have multiple near neighbours, so they are not considered to be part of molecules, but instead part of a continuous three-dimensional network. Salts usually form crystalline structures when solid. Sa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ESP 042597 1320layers
ESP most commonly refers to: * Extrasensory perception, a paranormal ability ESP may also refer to: Arts, entertainment Music Albums * ''E.S.P.'' (Bee Gees album), a 1987 album by the Bee Gees * '' E.S.P. (Extra Sexual Persuasion)'', a 1983 album by soul singer Millie Jackson * ''E.S.P.'' (Miles Davis album), a 1965 album by Miles Davis * '' E.S.P. (Erick Sermon's Perception)'', a 2015 album by Erick Sermon Songs * "E.S.P." (song), the title track of the album * "E.S.P.", a 1977 song by Masayoshi Takanaka from the album '' An Insatiable High'' * "E.S.P.", a 1978 song by Buzzcocks from the album '' Love Bites'' * "E.S.P.", a 1988 song by Cacophony from the album '' Go Off!'' * "E.S.P.", a 1990 Song by Deee-Lite from the album "World Clique" * ''ESP'', a 2000 album by The System * "ESP", a 2017 song by N.E.R.D. from the album '' No One Ever Really Dies'' * "ESP", a 2022 song by Beach House from the album ''Once Twice Melody'' Other topics in music * ESP Guitars, a manufa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glacial Horn
A pyramidal peak, sometimes called a glacial horn in extreme cases, is an angular, sharply pointed mountain peak which results from the cirque erosion due to multiple glaciers diverging from a central point. Pyramidal peaks are often examples of nunataks. Formation Glaciers, typically forming in drainages on the sides of a mountain, develop bowl-shaped basins called cirques (sometimes called 'corries' – from Scottish Gaelic ʰəɾə(a bowl) – or s). Cirque glaciers have rotational sliding that abrades the floor of the basin more than walls and that causes the bowl shape to form. As cirques are formed by glaciation in an alpine environment, the headwall and ridges between parallel glaciers called arêtes become more steep and defined. This occurs due to freeze/thaw and mass wasting beneath the ice surface. It is widely held that a common cause for headwall steepening and extension headward is the crevasses known as bergschrund that occur between the moving ice and the he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cirques
A (; from the Latin word ) is an amphitheatre-like valley formed by glacial erosion. Alternative names for this landform are corrie (from , meaning a pot or cauldron) and ; ). A cirque may also be a similarly shaped landform arising from fluvial erosion. The concave shape of a glacial cirque is open on the downhill side, while the cupped section is generally steep. Cliff-like slopes, down which ice and glaciated debris combine and converge, form the three or more higher sides. The floor of the cirque ends up bowl-shaped, as it is the complex convergence zone of combining ice flows from multiple directions and their accompanying rock burdens. Hence, it experiences somewhat greater erosion forces and is most often overdeepened below the level of the cirque's low-side outlet (stage) and its down-slope (backstage) valley. If the cirque is subject to seasonal melting, the floor of the cirque most often forms a tarn (small lake) behind a dam, which marks the downstream limit of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aretes
Aretes () or Aretas () was a Macedonian general. At the Battle of Gaugamela The Battle of Gaugamela ( ; ), also called the Battle of Arbela (), took place in 331 BC between the forces of the Ancient Macedonian army, Army of Macedon under Alexander the Great and the Achaemenid Army, Persian Army under Darius III, ..., he commanded the sarissophoroi (also known as '' prodromoi''), a unit of versatile cavalry, adept at scouting, but with an ability for close-combat in battle. He replaced Protomachus as the commander of this unit. At Gaugamela, the ''sarissophoroi'' were responsible for finally routing the Persian left wing cavalry, winning the battle in this sector. In their final charge, the ''sarissophoroi'' broke the Massagetae heavy cavalry, Aretes personally killing their leader.Sidnell, p. 113 References Bibliography *Ashley, J.R. (2004) ''The Macedonian Empire: The Era of Warfare Under Philip II and Alexander the Great, 359-323 B.C.'' McFarland. * *''Who's who i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tarns
A tarn (or corrie loch) is a mountain lake, pond or pool, formed in a cirque (or "corrie") excavated by a glacier. A moraine may form a natural dam below a tarn. Etymology The word is derived from the Old Norse word ''tjörn'' ("a small mountain lake without tributaries") meaning pond. In parts of Northern England – predominantly Cumberland and Westmorland (where there are 197), but also areas of North Lancashire and North Yorkshire – 'tarn' is widely used as the name for small lakes or ponds, regardless of their location and origin (e.g. Talkin Tarn, Urswick Tarn, Malham Tarn). Similarly, in Scandinavian languages, a ''tjern'' or ''tjørn'' (both Norwegian) or ''tjärn'' or ''tärn'' (both Swedish) is a small natural lake, often in a forest or with vegetation closely surrounding it or growing into the tarn. The name of the Tjörnin in Reykjavik, Iceland is also from a related word. The specific technical use for a body of water in a glacial corrie comes from the hig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
