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Topic: Tharsis Montes

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Ascraeus Mons

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List of volcanoes

	Tharsis Montes
		The largest volcano of all on Mars (and in the solar system), Olympus Mons, is also in the Tharsis Region and lies off the image to the upper left.
		Arsia Mons, Pavonis Mons, and Ascreus Mons dominate the center of the Tharsis region, forming a line nearly 1500 km long.
		However, the volcanoes of the Tharsis region sit on a large mound of lava flows nearly 10 km high, so their true height is "only" about 15 km.
	www.daviddarling.info /encyclopedia/T/Tharsis_Montes.html (278 words)

	Tharsis Montes - Wikipedia, the free encyclopedia
		The three volcanoes that comprise Tharsis Montes: Arsia Mons is southernmost; Pavonis Mons is at center; Ascraeus Mons is at north.
		Tharsis Montes is a range of three volcanoes in the Tharsis region of Mars.
		The caldera of Ascraeus Mons, northernmost peak of Tharsis Montes.
	en.wikipedia.org /wiki/Tharsis_Montes (197 words)

	Mars Exploration: Multimedia
		Tharsis Montes is the largest volcanic region on Mars.
		The Tharsis Montes (Ascraeus, Pavonis, and Arsia) are located on the crest of the crustal bulge and their summits are about the same elevation as the summit of Olympus Mons, the largest of the Tharsis volcanoes.
		The main difference between the volcanoes on Mars and Earth is their size; volcanoes in the Tharsis region are up to 100 times larger than those anywhere on Earth.
	mars.jpl.nasa.gov /gallery/atlas/tharsis-montes.html (131 words)

	Tharsis - Wikipedia, the free encyclopedia
		The Tharsis region on Mars is an enormous volcanic upland located on Mars' equator, at the western end of Valles Marineris.
		Tharsis is surrounded by a ring-shaped topographical depression called the Tharsis trough, and on the opposite side of the planet is a smaller bulge called Arabia Terra which may have formed as a result of the weight of Tharsis.
		The large quantities of carbon dioxide and water vapor that could have been outgassed by Tharsis magma may have also played a significant role in Mars' wet period; Roger J. Phillips calculated in 2001 that it could have formed a 1.5-bar carbon dioxide atmosphere and a global layer of water that averaged 120 meters thick.
	en.wikipedia.org /wiki/Tharsis (391 words)

	A history of Mars
		Philips et al[85] examined Margaritifer Sinus and concluded much of the Tharsis bulge was already in place before the drainage channels were formed, which is consistent with the general rise in elevation in the area of Tharsis and Sinai Planum from the Isidis impact.
		Tharsis and Olympus Montes are today on the equator at around 120W and the pole would have moved to 330W.
		This is consistent with the weight of Olympus Mons and Tharsis remaining on the equator, and the pole moving to the negative masses of impact craters.
	www.harmakhis.org /paper1.htm (11591 words)

	Active Volcanism On Mars
		The valley systems on the northeast and southwest flanks of the Tharsis Montes are equivalent to the Krafla fissure swarm and are thus the locus of most intense volcanism.
		Within the Tharsis Montes lava flows were widely detected, such as within the caldera on Arsia Mons and on the concentric caldera rims.
		Tharsis Montes erosional valley systems: Each of the Tharsis Montes has a caldera and a rift segment extending from it respectively on the southwest and northeast side (figure 2).
	www.spacedaily.com /news/mars-volcano-01a.html (4845 words)

	Westernmost Valles Marineris
		Further west are three large volcanoes known collectively as the Tharsis Montes.
		Tharsis Montes is Latin for "the Tharsis Mountains."
		Tharsis comes from the Bible and refers to a land at the western extremity of the known world.
	www.arcadiastreet.com /cgvistas/mars_080.htm (187 words)

	Martian Travel Guide - Catch a Star 2005 - Group 039
		The volcano is the smallest of all the Tharsis volcanoes.
		Most researchers agree that Valles Marineris is a large tectonic "crack" in the Martian crust, which formed as the planet cooled, affecting by the rising crust in the Tharsis region to the west and subsequently widening by erosional forces.
		The Tharsis Montes (Ascraeus, Pavonis, and Arsia) are nearly 700 km apart and each reaches nearly the same height as Olympus Mons (~25-27 km) - the largest of the Tharsis volcanoes, but each is somewhat smaller than it.
	martian.smolyan.info /tour.html (2559 words)

	Tharsis Montes (Site not responding. Last check: 2007-11-05)
		This image shows the three giant volcanoes known as the Tharsis Montes.
		These volcanoes lie in the center of the Tharsis region, and they form a line nearly 1500 km long.
		Therefore, volcanism in the Tharsis region may have slowly shifted north over time.
	volcano.und.nodak.edu /vwdocs/planet_volcano/mars/Shields/tharsis.html (224 words)

	Catalog Page for PIA00408
		The scene shows the Tharsis bulge, a huge ridge covered by the 3 large aligned Tharsis Montes shield volcanoes (from lower left to right): Arsia, Pavonis, and Ascraeus Mons.
		To the left of the Tharsis Montes lies the huge Olympus Mons shield volcano, followed clockwise by Alba Patera (north center), several smaller volcanoes, and the linear depressions of Mareotis and Tempe Fossae (upper right).
		Fossae (linear depressions) of the Tharsis area are fault-bound graben formed by upwarping of the Tharsis bulge.
	photojournal.jpl.nasa.gov /catalog/PIA00408 (321 words)

	Constitution of the Tharsis Montes Commonwealth
		The Tharsis Montes Commonwealth is a sovereign governmental unit registered under the terms of the 1998 United Nations Treaty for the Development of Outer Space and subject to its terms and conditions, serving as trustee thereunder, within the Commonwealth's specified domains, for the Luna, Tharsis, and Vesta Industrial Development Corporation.
		Tharsis City, administrative center of the commonwealth, was at this time by far the largest Mars settlement (holding almost half the total human population of Mars), and in fact the largest human settlement outside the Earth-Luna system.
		The outlying Tharsis Montes settlements, like other human settlements on Mars, were divided rather arbitrarily into "warrens" (enclosed communities of from several dozen to several hundred members), "hutches" (permanent habitations holding only two or three families) and mobile encampments operating out of Mars surface vehicles, mostly though not entirely for prospecting or commercial projects.
	www.paulburgess.org /mars.html (2509 words)

	Mindstorms Mayhem FLL Team Sponsors 2003-04 (Site not responding. Last check: 2007-11-05)
		Tharsis Montes — The Tharsis Montes are the chain of huge volcanic mountains in the Tharsis region of Mars.
		The entire Tharsis region is a large doming bulge on Mars reaching almost 10 kilometers in height, and measuring 4,000 kilometers across.
		Charitum Montes — The Charitum Montes are a long (1500km) chain of mountains on the south side of Argyre basin.
	www.mindstormsmayhem.org /sponsor-list-0304.asp (378 words)

	Plumes on Mars?
		Tharsis rise is one of the most prominent features on the surface of Mars and dominates the global topography and areoid on Mars (Figure 1).
		Tharsis rise straddles the crustal dichotomy of Mars and this leads to the question of whether the dichotomy played a role in the formation and evolution of Tharsis.
		Although the upwelling forms beneath the layer and not at the edge, where Tharsis lies, it is still strongly suggestive that the crustal dichotomy may have played a role in the formation of the Tharsis rise.
	www.mantleplumes.org /Mars.html (3075 words)

	Comparing Earth and Mars
		All of the volcanos in the Tharsis region are shield volcanos.
		All of the mons in the Tharsis Region appear to be shield volcanos because shield volcanos are low, broad, dome-shaped types of volcanos which are identical to the volcanos in the Tharsis Region.
		In both Olympus Mons and Tharsis Montes the lava flow that precedes the building of a volcano shows some definite similarities that occur when a volcano is formed in a formed in a divergent boundary.
	teachertech.rice.edu /Participants/dawsonm/Lessons/mars/marsproject.htm (6146 words)

	Encyclopedia :: encyclopedia : Tharsis Montes (Site not responding. Last check: 2007-11-05)
		Tharsis Montes is a set of mountains on Mars.
		It consists of Ascraeus Mons, Pavonis Mons, Arsia Mons, and Olympus Mons which are arranged in that order from northeast to southwest.
		Tharsis Montes is located within the Tharsis region.
	www.hallencyclopedia.com /topic/Tharsis_Montes.html (60 words)

	M2K4: Roaming the Red Planet
		The summits of Tharsis Montes summits are about the same elevation as the summit of Olympus Mons, the largest of the Tharsis volcanoes.
		Alba may be the last of a family of giant, flatter volcanoes that have been replaced by the larger shield volcanoes of Tharsis.
		The wide bench in the lower left of the caldera, or volcanic collapse crater, may be the remnants of an ancient lava lake.
	www.nasa.gov /externalflash/m2k4/textlonly/explore_mars.html (916 words)

	Exploring Mars: Science - Tharsis Tholus
		Tharsis Tholus (tholus = dome) lies just to the north of the three Tharsis Montes.
		Tharsis Tholus is the smallest of all the Tharsis volcanoes.
		Although the volcano is small compared to other Martian volcanoes, it would be very large if it were on Earth; Tharsis Tholus is about 150 km(93 mi) across and 8 km (5 mi) high, about the same size as Mauna Loa.
	www.exploringmars.com /science/atlas/tt.html (92 words)

	Science Fair Projects - Tharsis
		At center, diagonally from top to bottom are Ascraeus Mons, Pavonis Mons and Arsia Mons (collectively known as Tharsis Montes).
		Tharsis Bulge rises up to 10 kilometers above its surroundings and covers 30 million square kilometers.
		Tharsis is surrounded by a ring-shaped topological depression called the Tharsis trough, and on the opposite side of the planet is a smaller bulge called Arabia Terra which likely formed as a result of the weight of Tharsis.
	www.all-science-fair-projects.com /science_fair_projects_encyclopedia/Tharsis (352 words)

	Divining Ice on Mars Through Time :: Astrobiology Magazine ::
		This map shows an excellent match between the geological structure of the Tharsis region on present-day Mars (left), where glaciers remnants are indicated in yellow, and a simulation of glacier formation by atmospheric precipitation in the same region a few millions year ago (right).
		In particular, the maximum deposition is predicted on the western flanks of the Arsia and Pavonis Montes of the Tharsis region, where the largest deposits in this area are actually observed.
		In their simulations, the team could even "read" why and how ice was accumulated on the flanks of these mountains in the Tharsis region millions of years ago.
	www.astrobio.net /news/article1845.html (963 words)

	Origin and evolution of a cold-based tropical mountain glacier on Mars: The Pavonis Mons fan-shaped deposit
		Each of the large Tharsis Montes volcanoes in the equatorial region of Mars has an unusual Amazonian-aged fan-shaped deposit on its west-northwestern flank.
		Using recent results from Mars general circulation model simulations, we outline a model of glacier formation involving atmospheric deposition of water ice on the northwestern flanks of the Tharsis Montes during periods of high mean obliquity.
		Reconstructed ice sheet profiles for each of the Tharsis Montes glaciers suggest that the ice sheets attained average thicknesses of ∼1.6–2.4 km, values that are consistent with a cold-based glacial origin.
	www.agu.org /pubs/crossref/2005/2004JE002360.shtml (542 words)

	Interrelated Volcanic, Hydrologic, and Glacial Processes on Martian Volcanoes Posters - Planetary Sciences [P]
		The Tharsis Montes volcanoes, Arsia, Pavonis and Ascreus, share many volcano-tectonic features, including fissure swarms that extend NE and SW away from their centers.
		Geological evidence for distinctive and very large tropical mountain glacial deposits on the NW flanks of the Tharsis Montes shows that the emplacement of ice in the equatorial regions is heterogeneous and is intimately linked to the presence of large volcanic edifices on the broad Tharsis rise.
		A significant fraction of this tectonic stress change within the aquifer is borne by the water in the pore spaces, so that a tectonic event results in a rapid pressurization of the aquifers surrounding the graben.
	www.agu.org /meetings/fm05/fm05-sessions/fm05_P23B.html (3661 words)

	ESA - Space Science - Lava tubes on Pavonis Mons
		Pavonis Mons, rising roughly 12 km above the surrounding plains, is the central volcano of the three 'shield' volcanoes that comprise Tharsis Montes.
		Pit chains, strings of circular depressions thought to form as the result of collapse of the surface, are also visible within the colour image.
		The context map is centred on Pavonis Mons, one of the three volcanoes called Tharsis Montes (the others being Arsia and Ascreus Montes, aligned with Pavonis in a line nearly 1500 kilometres long).
	www.esa.int /esaSC/SEM8AD9ATME_index_1.html (587 words)

	ESA Science & Technology: Fractures of Claritas Fossae
		Claritas Fossae is located on the Tharsis rise, south of the three large volcanoes known as the Tharsis Montes, and extends roughly north to south for approximately 1800 kilometres.
		The linear fractures of Claritas Fossae have widths ranging from a few kilometres to 100 kilometres, and the region is about 150 kilometres wide in the north and 550 kilometres wide in the south.
		These fractures are radial to the Tharsis rise, consistent with the idea that they are the result of enormous stresses associated with formation of the 8-10 kilometre high Tharsis rise.
	sci.esa.int /science-e/www/object/index.cfm?fobjectid=36400 (483 words)

	Dôme de Tharsis (Site not responding. Last check: 2007-11-05)
		Le dôme de Tharsis est est un vaste plateau de 5500 km de diamètre et de 6 à 10 km de hauteur.
		Après le dôme de Tharsis, la région d'Elysium Planitia (plaine d'Elysium) est la deuxième zone volcanique importante de la planète Mars.
		Le dôme de Tharsis est connecté à Valles Marineris par Noctis Labyrinthus.
	www.all2know.com /fr/wikipedia/d/da/da_me_de_tharsis.html (99 words)

	Active Volcanism On Mars
		From volcano-tectonic considerations the erosional valley coincides with the locus of maximum volcanism, yet the Tharsis Montes valley systems are paradoxically devoid of lava surfaces.
		Common with the Tharsis Montes are morphological features, which are thought to be caused by volcanogenic erosion.
		Attention is given to the relationship between loci of such morphological features and sites where, based on volcano-tectonic relations, eruption of magma is most likely to have occurred.
	www.spacedaily.com /news/mars-volcano-01a1.html (1314 words)

	Tharsis a Olympus Mons (Site not responding. Last check: 2007-11-05)
		Nejlepší příklad toho je oblast Tharsis, v dosahu 1 500 km se nacházejí skoro vedle sebe tři sopky - Arsia Mons (9,1° j.š., 238,3° d.), Pavonis Mons (0,0° s.š., 246,7° d.) a Ascraeus Mons (11,7° s.š, 255,1° d.) - vysoké 14 km až 18 km a každá mající šířku základny nejméně 200 km.
		Tharsis byl pojmenován podle nápadného albeda na povrchu.
		Všechny sopky v oblasti Tharsis jsou nyní známy jako Tharsis Montes a jméno Tharsis bylo dáno jedné menší sopce, Tharsis Tholus, na obrázku vpravo uprostřed.
	planety.astro.cz /mars/tharsis.html (326 words)

	VOLCANISM ON MARS: NEW PERSPECTIVES FROM MOLA TOPOGRAPHY (Site not responding. Last check: 2007-11-05)
		In Tharsis, detailed topography has confirmed the role of effusive volcanism centered in Syria Planum in the Noachian as the major focus of early Tharsis activity, also involving later lateral movement and deformation, and ending with extrusion of over 100 small summit shield volcanoes.
		Later Tharsis activity is centered on the Tharsis Montes and altimetry data show the contrast in edifice development; early broad shields give way to flanking rift zones centered at neutral buoyancy zones within the edifices and extensive aprons of flows.
		The episodic nature of activity in Tharsis Montes is shown by sequential caldera morphology and the presence of radial graben extending thousands of km off the rise and interpreted to be due to dike emplacement during buffered magma supply conditions.
	gsa.confex.com /gsa/2001AM/finalprogram/abstract_26982.htm (429 words)

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