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Topic: Alba Patera

	Mars by Viking, 1975 through 1987. (Site not responding. Last check: 2007-11-03)
		A patera (Latin for shallow dish or saucer) is a volcano of broad areal extent with little vertical relief; a fossa is a linear depression.
		The fossae of the Alba area are fault-bound graben that can be traced south through the Tharsis bulge and therefore likely formed by upwarping of the Tharsis bulge as well as the coeval upwelling of Alba Pateria magma.
		Amphitrites Patera is a 138-km-diameter feature on the south rim of Hellas impact basin and is one of many indistinct ring structures in the area.
	xpda.com /mars/viking (8011 words)

	Volcanism of Mars - Volcanic Landforms (Site not responding. Last check: 2007-11-03)
		Paterae are extremely low, flat shields with calderas that are often irregular and subdued when compared to the other types of great shields.
		In fact, Alba Patera in the Tharsis region has a base diameter of 1,200 km, significantly greater than that of Olympus Mons, and a significant fraction of the entire planet's diameter of 6787 km.
		The highlands paterae show notable radial dissection revealing a layered structure that is suggestive of ignimbrite deposits (Greeley and Crown, 1990 and Crown and Greeley 1990a, b).
	erc.arc.nasa.gov /MarsVolc/landforms.htm (1195 words)

	Alba Patera, Mars (Site not responding. Last check: 2007-11-03)
		The low relief of Alba Patera may be due to the collapse of a structure comparable to the Olympus Mons shield but there is no direct evidence that such a collapse actually occurred.
		An alternative explanation for the low relief is that Alba Patera may include a significant portion of pyroclastic materials (ash) from its early history, caused by eruptions that are more explosive in nature than those typically associated with the effusion of lava flows.
		Alba Patera is older than the shield volcanoes in the Tharsis region and may represent a change in the style of centralized volcanic eruptions on Mars.
	volcano.und.nodak.edu /vwdocs/planet_volcano/svol_S09.html (191 words)

	Volcanic Activity
		Alba Patera, just to the north of Tharsis, although only a few kilometers high, is 1700 km in diameter.
		The origin of the aureole is unclear, but suggestions are that it is the remnant of a pre Olympus volcano, that it consists of eroded ash flow tuffs, or vast thrust sheets.
		Alba Patera, just to the north of Tharsis, differs from the volcanoes already described.
	www.lindbergh.k12.mo.us /mars/VOViews/VOLCANOS.HTM (744 words)

	[No title] (Site not responding. Last check: 2007-11-03)
		Alba Patera (approximately 40°N, 110°W) is the northernmost volcano in the volcanic Tharsis region, designated by the large circle.
		Unusually distinct and long lava flows are numerous on Alba Patera, separating the volcano from its nearby neighbors.
		Various types of lava flows are found on Alba Patera, some of which do not have terrestrial equivalents.
	www.public.asu.edu /~bdegreg/alba/alba.htm (631 words)

	Geology of Mars } Volcanic
		Instead, it is an area of very low profile, but with a large caldera, called Alba Patera.
		Another patera volcano in the southern highland is named Tyrrhena Patera (Figure 6.14).
		Based on crater count, Tyrrhena Patera is estimated to be at least 3 billion years old.
	www.lukew.com /marsgeo/volcanic3.html (205 words)

	Martian Volcanoes
		Both the plains and the volcano are cut by a graben, indicating tectonic activity subsequent to the emplacement of the plains.
		The low relief and easily erodible nature of the flank materials has been interpreted to indicate that the bulk of the volcano is composed of pyroclastic ash deposits.
		This interpretation implies that the style of eruption for the highland volcanoes like Tyrrhena Patera is significantly different from the repeated effusion of fluid lavas that built up the shield volcanoes.
	www.solarviews.com /eng/marsvolc.htm (2530 words)

	Exploring Mars: Science - Alba Patera (Site not responding. Last check: 2007-11-03)
		Alba Patera ("patera" means "saucer" in Latin) lies to the north of the Tharsis region.
		Alba Patera has the largest diameter of any volcano in the solar system.
		The lava flows observed around Alba Patera show that they are much thicker than those found on the other shield volcanoes in the region.
	www.exploringmars.com /science/atlas/ap.html (135 words)

	Volcanoes on Mars Slide Set
		Just as the basal scarp is unique to Olympus Mons, Alba Patera is surrounded by a distinctive set of enormous fractures having a predominantly north-south orientation.
		The northwestern flank of Biblis Patera (extending left from the summit caldera) is less covered by the plans because it is on the downslope side of the uplift associated with the Tharsis Montes and the lavas flowed around Biblis Patera.
		The lower flanks of the volcano have been buried beneath the plains material, as was the case with both Ulysses (slide #11) and Biblis (slide #12) Paterae, but a major impact crater postdates both the volcano and the plains in the upper portion of the frame.
	www.astro.auth.gr /ANTIKATOPTRISMOI/lpislides/mvolcan.html (3077 words)

	Domes
		Alba Patera - This volcano is comparable to Olympus Mons in horizontal extent but not in vertical relief; recent topographic maps show a total vertical relief of less than 7 km (4.2 mi) for Alba Patera.
		Ulysses Patera -This feature is an example of a class of volcanoes that are considerably smaller than either the broad shield volcanoes or Alba Patera.
		The lower flanks of the volcano have been buried beneath the plains material, as was the case with both Ulysses (slide #11) and Biblis Paterae, but a major impact crater postdates both the volcano and the plains in the upper portion of the frame.
	cmex.ihmc.us /CMEX/data/catalog/VolcanismOnMars/Domes.html (1566 words)

	M2K4: Roaming the Red Planet
		Alba Patera is a 'patera', a flattened volcanic feature with a larger summit collapse crater.
		It is clearly associated with a region of Mars' crust that behaves differently than that found in the Tharsis area.
		Alba may be the last of a family of giant, flatter volcanoes that have been replaced by the larger shield volcanoes of Tharsis.
	www.nasa.gov /externalflash/m2k4/textlonly/explore_mars.html (916 words)

	Alba Patera (Site not responding. Last check: 2007-11-03)
		Alba is not a true highland patera, but it is also unique.
		Alba differs from both the giant martian shields and the highland paterae.
		Alba also shows a long history of very fluid volcanism.
	volcano.und.nodak.edu /vwdocs/planet_volcano/mars/Patera/alba.html (220 words)

	ch5
		Superposed impact craters on Alba Patera are more numerous than on Olympus Mons and Arsia Mons suggesting an older age for many of these flows.
		This part of the flanks of Alba Patera has ridge-like lava flows with complicated dendritic patterns developed on them.
		It is similar in size to Biblis Patera, is surrounded by younger flows, and has two superposed craters, probably of impact origin.
	history.nasa.gov /SP-441/ch5.htm (2287 words)

	Adler Planetarium / Learning Astronomy / Planets / Mars / Volcanism on Mars (Site not responding. Last check: 2007-11-03)
		These plains are highlighted by small cones called Paterae that seem to be made from explosive ash.
		Alba Patera, in the northern Tharsis region, may be a transition between these two types of volcanism.
		The image to the left is of Alba Patera.
	www.adlerplanetarium.org /learn/planets/mars/volcanism.ssi (212 words)

	Tharsis - Wikipedia, the free encyclopedia
		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.
		Alba Patera is a unique volcanic feature to the north of the Tharsis region.
		A destroyer named Tharsis is referred to in the Halo series of games and novels.
	en.wikipedia.org /wiki/Tharsis (364 words)

	Extension and uplift at Alba Patera, Mars: Insights from MOLA observations and loading models
		High-resolution Mars Orbiter Laser Altimeter (MOLA) profiles of the large shield volcano Alba Patera call for a critical reexamination of models for the growth and evolution of this volcanic edifice.
		Both the type (extensional) and location (midflank) of faulting on Alba Patera are inconsistent with the state of stress predicted for purely surface-loaded flexure models.
		To constrain the conditions governing the evolution of Alba Patera, we employ finite element models for the volcano and lithospheric stress field under a combination of loading mechanisms.
	www.agu.org /pubs/crossref/2001/2000JE001314.shtml (471 words)

	Dirty Skies (Site not responding. Last check: 2007-11-03)
		A scant (on a cosmic scale) 1750 km to the northeast lies Alba Patera.
		Alba Patera (”patera” meaning “saucer” in Latin) has the largest diameter of any volcano in the solar system at over 1600 km (Olympus Mons is about 625 km across).
		A great close-up of collapse pits from an area in the northeast region of the Alba Patera complex — taken by the Mars Odyssey Thermal Emission Imaging System (THEMIS) — can be seen here.
	www.dirtyskies.com /index.php/page/2 (1331 words)

	Red river valleys - planet - geologic evidence of atypical water channels on Mars Discover - Find Articles (Site not responding. Last check: 2007-11-03)
		Judging from the small number of meteorite craters overprinted on the Alba Patera valleys, says planetary scientist Virginia Gulick of NASA's Ames Research Center, they were carved only about a billion years ago.
		A billion or so years ago, they speculate, a frozen lake covered the plains around Alba Patera, which was then still active.
		Since most of the other volcanoes had stopped spewing gases into the atmosphere, the temperature and atmospheric pressure on Mars were so low that ice from the lake surface sublimated--it transformed into vapor without first melting as water.
	www.findarticles.com /p/articles/mi_m1511/is_n6_v15/ai_15431287 (373 words)

	Martian High North Latitude Hot Spots? - Unmanned Spaceflight.com
		This happens to lie in Alba Patera, the volcanic region.
		The THEMIS image is actually in the caldera of Alba Patera, which you
		Patera is known to have had recent lava flows.
	www.unmannedspaceflight.com /index.php?showtopic=1229 (1271 words)

	Alba Patera :: Mars Astrobiology Magazine :: Search for Life on Mars
		Summary: Today's images from Mars include: Alba Patera and Dark Gray Dunes, Bright Orange Dust (Released 26 December 2003), from the Mars Global Surveyor and 2001 Mars Odyssey spacecrafts.
		Alba Patera is located at 41 degrees N, 111 degrees W. The area shown here is approximately 430 km (~270 mi) across and illuminated from the lower left.
		The name "2001 Mars Odyssey" was selected as a tribute to the vision and spirit of space exploration as embodied in the works of renowned science fiction author Arthur C. Clarke.
	mars.astrobio.net /news/modules.php?op=modload&name=News&file=article&sid=179 (612 words)

	Adler Planetarium / CyberSpace / Planets / Mars / Volcanism on Mars (Site not responding. Last check: 2007-11-03)
		Image of the Tyrrhena Patera volcano on Mars, an older shield volcano.
		The image to the right is of Alba Patera.
		Image of the Alba Patera volcano on Mars, located in the Tharsis region.
	www.adlerplanetarium.org /cyberspace/planets/mars/volcanism.html (263 words)

	Holding Back the Ocean
		They focused on two candidate shorelines on opposite sides of the proposed ocean: one near the Utopia impact basin and another near the Alba Patera volcano.
		Withers and Neumann point out that most of the ridges are located near regions that have been placed under stress - the Utopia impact basin, the volcanic Tharsis Rise, and the Alba Patera volcano, for example.
		However, in the region near Alba Patera, the "backs" of the features face upslope.
	www.lpl.arizona.edu /~withers/media/molanature2001/astronomycommolanature.html (552 words)

	Major Martian Volcanoes (Site not responding. Last check: 2007-11-03)
		Two views of Alba Patera with topography draped over a Viking image mosaic.
		MOLA data have clarified the relationship between fault location and topography on and surrounding the Alba construct, providing insight into the volcanological and geophysical processes that shaped the edifice.
		The topography also clearly shows the relationship between the volcano's scarp and massive aureole deposit that was produced by flank collapse.
	ltpwww.gsfc.nasa.gov /tharsis/volcano.html (140 words)

	Universe Today - Channels and Pits on Mars
		Located south-east of the Alba Patera volcano, Phlegethon Catena is a region exhibiting a high density of tectonic grabens, which are blocks of terrain that have dropped relative to their surroundings as a result of a geological extension of the crust.
		In the colour image, this swarm of grabens trends roughly north-east to south-west, with individual widths ranging from approximately one half to ten kilometres.
		The grabens may have formed as the result of stresses associated with the formation of Alba Patera, which rises three to four kilometres above the surrounding plains, or the Tharsis rise to the south, which reaches up to ten kilometres high.
	www.universetoday.com /am/publish/phlegethon_catena.html (432 words)

	SPACE.com -- Mars Odyssey's Picture of the Day: Alba Patera Volcano
		This image is of an area on the flank of a volcano called Alba Patera.
		That may be what has happened here on Alba Patera as well.
		All of these features suggest the action of liquid water, but Mars is so cold, you might wonder if any water would have to be as frozen as the world it is on.
	www.space.com /scienceastronomy/solarsystem/mars_daily_020422.html (832 words)

	[No title] (Site not responding. Last check: 2007-11-03)
		Altimetry data have allowed a more accurate measurement of fault scarp depth for the Alba Patera region on Mars.
		With these measurements it is possible to reexamine the amount of extension at Alba Patera, which can yield estimates of both regional and local strain.
		Images from the Viking mission were used in conjunction with altimetry data from the Mars Orbiter Laser Altimeter (MOLA) on the Mars Global Surveyor (MGS) spacecraft to determine the locations of graben in the Alba Patera region.
	www.gl.ciw.edu /interns/1998/Int_Faulkner.html (208 words)

	Did the Alba Patera and Syria Planum regions of Mars lose their lithospheric roots in convective overturn events?
		Convective removal of part of the thermal boundary layer and its replacement with hotter asthenosphere has been proposed to explain the unusual tectonic setting of the Tibetan plateau on Earth: a topographically highstanding plateau abutting an active region of continental collision and yet undergoing extensional tectonics.
		This change in eruptive style has previously been interpreted to be a consequence of the evolution of the Martian mantle, but we argue that the change is because late stage activity at Alba Patera is sourced from remelted underplated igneous material rather than juvenile melt from the mantle.
		Our proposal removes the requirement to explain these features by diametrically opposed processes and on a global scale identifies the patera and large shield morphologies as the end-members of a single evolutionary sequence.
	www.agu.org /pubs/crossref/2003/2002JE001492.shtml (303 words)

	Untitled Document
		Firstly, I would note a strong linear trend formed by the Arsia Mons to Uranius Patera group.
		It would also appear that Ascraeus Mons is younger than Pavonis Mons, which is younger than Arsia Mons.
		A line through the centers of Olympus Mons and Alba Patera would be parallel to that between the other Mons volcanoes, however it must be remembered that at the scale of the map, the fact that Mars is a sphere rather than planar, has to be born in mind.
	faculty.sulross.edu /jlwstark/planet/planet64.html (896 words)

	NASA Mars Odyssey THEMIS Image: Alba Patera Collapse Pits \| SpaceRef Canada - Your Daily Source of Canadian Space News
		As the volatiles leave, the weight of the surrounding rock causes collapse pits to form.
		These collapse pits are found within graben surrounding Alba Patera.
		Alba Patera is an old volcano that has subsided after it's magma chamber was evacuated.
	www.spaceref.ca /news/viewsr.html?pid=14507 (845 words)

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