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Akna Montes

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	List of montes on Venus - Wikipedia, the free encyclopedia
		This is a list of montes (mountains, singular mons) on the planet Venus.
		Venusian mountains are all named after goddesses in the mythologies of various cultures, except for the Maxwell Montes.
		The four main mountain ranges of Venus are named Maxwell Montes, Frejya Montes, Akna Montes, and Danu Montes.
	en.wikipedia.org /wiki/List_of_mountains_on_Venus (363 words)

	Catalog Page for PIA00250
		The Akna range is a north-south trending ridge belt that forms the western border of the elevated smooth plateau of Lakshmi Planum (plains).
		The ridge of the Akna mountains immediately to the west of the crater is 8 kilometers wide (5 miles).
		At this latitude the radar views the surface from an angle of 23 degrees off vertical, creating a perspective as though a viewer were looking at the scene from the right (east) at an angle of 23 degrees above the surface.
	photojournal.jpl.nasa.gov /catalog/PIA00250 (323 words)

	USGS Astro: Planetary Nomenclature - Venus Nomenclature Mons (Site not responding. Last check: 2007-11-02)
		Akna Montes 68.9N 318.2E 830.0 SA MY I2490 V7 5 1979 1 MO Mayan goddess of birth.
		Freyja Montes 74.1N 333.8E 579.0 EU NS I2490 V7 5 1979 27 MO Norse, mother of Odin.
		Nayunuwi Montes 2.0N 83.0E 900.0 NA CH I2467 V22 5 1997 107 MO Cherokee stone-clad female monster.
	planetarynames.wr.usgs.gov /venus/venumons.html (2126 words)

	Geology of Venus - Wikipedia, the free encyclopedia
		Such is the case on the southwest side of Maxwell Montes, which in some parts seems to be inclined some 45°.
		These highlands seem to be the result of enormous mantle plumes (rising currents of magma) which have caused elevation, fracturing, faulting, and volcanism.
		The highest mountain chain on Venus, Maxwell Montes in Ishtar Terra, was formed by a process of compression, expansion, and lateral movements.
	en.wikipedia.org /wiki/Geology_of_Venus (5616 words)

	Venus
		The presence of irregular, radar-bright crater ejecta crossing the radar-dark floor terrace and adjacent outer radar-bright ring suggests that the terrace floor region is likely down-dropped and tilted outward, forming a concentric ring-fault.
		This remarkable half crater called Balch is located in the rift between Rhea and Theia Montes in Beta Regio.
		The Akna Mountains form the western edge of Lakshmi Planum.
	www.astronomical.org /planets/welcome/venus.htm (3246 words)

	p51b in fm99
		AB: The investigated area comprises an arcuate mountain belt, Akna Montes, in Western Ishtar Terra, associated with an outboard plateau, Atropos Tessera, to the west and a volcanic plateau, Lakshmi Planum, to the east.
		This sequence is interpreted to be a consequence of the variation of crustal stresses and crustal thickening during orogenic events as observed for terrestrial high plateaus associated with a montain belt (i.e.
		Using two end-members for structural style of Akna Montes, we estimated the amount of crustal shortening associated with the mountain belt for a symmetric fold model and a fault-bend fold model.
	www.agu.org /cgi-bin/SFgate/SFgate?&listenv=table&multiple=1&range=1&directget=1&application=fm99&database=/data/epubs/wais/indexes/fm99/fm99&maxhits=200&="P51B" (3047 words)

	Ishtar Terra
		Ishtar Terra is one of the Plateau Highlands of Venus, is found near the north pole, and is about the size of the continental United States.
		Ishtar Terra contains the four main mountain ranges of Venus named Maxwell Montes, Frejya Montes, Akna Montes, and Danu Montes.
		Maxwell Montes is on the east coast, Akna Montes on the west coast, and Frejya Montes to the north, and Danu Montes in a portion of the south.
	www.windows.ucar.edu /venus/interior/Ishtar_Terra.htmold (353 words)

	Associazione Lunar Explorer Italia - Fotografie ed Immagini della Luna, Marte, Il Sistema Solare e l'Universo - Venus
		3D view of Sapas Montes - Atla Region-20 visteSapas Mons is displayed in the center of this computer-generated 3D perspective view of the surface of Venus.
		A north-south profile through the very center of this crater is visible as a result of the down dropping and removal of the eastern half of the crater".
		The Akna range is a North-South trending ridge belt that forms the western border of the elevated smooth plateau of Lakshmi Planum.
	www.lunexit.it /gallery/thumbnails.php?album=47&page=4 (1411 words)

	ch8
		Three major mountain belts on Venus-Akna (Figure 8-4), Freyja, and Maxwell Montes, located within Ishtar Terra-are interpreted to have been formed by compression and crustal shortening, which produced folding and thrust faulting [Solomon and Head, 1984; Crumpler et al., 1986; Vorder Bruegge and Head, 1990; Solomon et al., 1992; Kaula et al., 1992].
		The mountain belt Akna Mons (69°N, 318.5°E) is interpreted as a fold belt associated with NWSE-oriented compression.
		Illumination is from the left at an incidence angle of 24 deg.
	history.nasa.gov /JPL-93-24/ch8.htm (3257 words)

	NASA's Cosmos
		It is about the size of Africa, rises 3.5 thousand meters above the surrounding terrain, and is bordered by the Akna, Danu, Freyja and Maxwell mountains, each about one million meters in extent.
		Maxwell Montes stands 11 thousand meters above the mean radius.
		Akna and Freyja are the respective names of the Yucatan goddess of birth and the Norse mother of Odin.
	ase.tufts.edu /cosmos/view_picture.asp?id=403 (167 words)

	Catalog Page for PIA00093 (Site not responding. Last check: 2007-11-02)
		Rising above this plateau are three massifs: Akna Montes and Freyja Montes along the western and northwestern edge of Lakshmi Planum, and Maxwell Montes along its eastern edge.
		The eastern part of Ishtar, east of Maxwell, is a complex hilly terrain ~1 km lower than Lakshmi Planum that lacks the steep well-defined boundary slopes that characterize the plateau.
		Maxwell Montes, highest point on the planet is elevated more than 10 km (32,000 ft) above the surrounding lowlands.
	www.bonus.com /contour/NASA_Photojournal/http@@/photojournal.jpl.nasa.gov/catalog/PIA00093 (178 words)

	Tectonics (Site not responding. Last check: 2007-11-02)
		These zones are interpreted to reflect extensional tectonics.
		) : large highland provinces are termed montes (
		, Maxwell Montes, Danu Montes, Akna Montes and Freyja Montes), descriptive of their mountain range-like appearance.
	astro.nmsu.edu /~aklypin/ast110/WebSite/tectonics.htm (329 words)

	The Magellan Venus Explorer's Guide
		Lakshmi is situated nearly 5 kilometers (3 miles) above the mean radius of Venus and is surrounded by mountain belts (ranges): Akna Montes (west), Freyja Montes (north), Maxwell Montes (east), and Danu Montes (south).
		Ushas, Innini, and Hathor Montes are volcanic structures along the western edge of this image taken at the Arecibo Radar Observatory.
		Fortuna Tessera (also shown in Figure 3-5) lies to the east of Maxwell Montes; it is a jumbled region of differing types of tesserae terrain.
	www2.jpl.nasa.gov /magellan/guide3.html (3700 words)

	Astronomy Web 2001 (Site not responding. Last check: 2007-11-02)
		The region of Venus that most closely resembles terrestrial mountains is Ishtar Terra, located at far northern latitudes.
		It consists of an elevated plateau, Lakshmi Planum, which is bounded on three sides by mountain belts the Danu, Akna and Freya Montes (Fig.
		The belts of mountains, with their banded ridges and narrow valleys, resemble mountain ranges on Earth, and the loftiest peak, Maxwell Montes, rises to Himalayan altitudes, standing over 11 thousand meters above the surrounding terrain.
	ase.tufts.edu /astroweb/view_chapter.asp?id=7&page=6 (246 words)

	Venera 15/16 Radar Mosaic Browser
		The higher-resolution imaginery obtained by Veneras 15 and 16 showed that most of the Lahshmi Planum was relatively smooth and higher than the adjacent area.
		The borders of the plateau are ultimately defined by the high ranges of Akna Montes to the west, Freyja Montes to the north and Maxwell Montes in the east.
		On Lakshmi's southern margin, a giant scarp called Vesta Rupes was discovered, beetwen 3 and 4 km high, dropping off to the south, and changing orientation part-way along its length.
	members.tripod.com /petermasek/venera15.html (795 words)

	[No title]
		The tectonic imprint of deformation between two plates is visible on the Lakshmi Planum plain, where lines of faulting make a suspicious orthogonal system and plain margins as Akna Montes are bent as caused by compression (Fig.
		The search for deformation between two parallel plates analogous to Venus's Lakshmi Planum and surrounding mountains is difficult, but bent Aldan shield in the position of Freyja Montes or Laurentian shield in the position of Maxwell Montes (mirror-turned) could be marks of such a process.
		The strange block of crust called Haemus Montes (Fig.13) is so similar to the slip-line field in Fig.8 in sense of shape and deformation patterns, that without any doubt it w as formed by the process of frontal compression.
	www.fns.uniba.sk /prifuk/casopisy/geol/199954/orvos.rtf (3449 words)

	Lava Compositions on Venus
		The mountain belts of Akna, Freyja, and Maxwell Montes have a ‘ridge and trough’ banded structure, and border the smooth-surfaced plateau of Laksmi Planum (Gaddis and Greeley, 1990, Jull and Arkani-Hamed, 1995).
		Banded terrain at the intersection of Akna and Freyja Montes shows evidence for a volcanic centre with bright, lobate flows on the northwestern plains and a large, irregular depression separated from Lakshmi Planum by a ridge.
		The surfaces had a moderate radar brightness indicating material with an average roughness height of ~8cm (radar wavelength), similar surfaces in areas such as the plains of Guinevere Planitia were interpreted as volcanic plains (Gaddis and Greeley, 1990).
	www.es.ucl.ac.uk /research/planetary/undergraduate/mcmillan/venus/venus.htm (5893 words)

	[No title]
		After the new topography maps of Mars were published, structures formed by plastic tectonics emerged for the first time on its surface.
		The strange block of crust called Haemus Montes (Fig.13) is so similar to the slip-line field in Fig.8 in sense of shape and deformation patterns, that without any doubt it was formed by the process of frontal compression.
		The intial locations and directions of drift of these crust blocks may be impossible to reconstruct, because it is likely that hot spots on Io are unstable in time and location.
	www.fns.uniba.sk /prifuk/casopisy/geol/199954/orvos.txt (3274 words)

	Mass Movements on Venus - J. Geophys. Res. v. 97, p .16337, 1992
		High-standing areas of intense tectonic disruption (Maxwell Montes, Alpha Regio, Ovda Regio, Beta Regio, etc.), being the most obvious places to look, were scrutinized with an 8X magnifying ocular, as were all areas that appeared to show, at the photographic scale of these prints, locally steep slopes (e.g., the opposing walls of troughs).
		Evidence of mass movements is generally rare in areas of mountain belts and tesserae, where closely spaced fractures accommodate topographic relief in series of small escarpments less prone to landsliding.
		Mountains within the Akna Montes, western Ishtar Terra, at 69.4 deg N, 309.5 deg E; illuminated from left at i = 23.5 deg (portion of F-MIDR 70N310)
	barsoom.msss.com /venus/landslides/venus_paper.html (7767 words)

	CHAPTER 4A
		The loftiest peak is Maxwell Montes - the only feature on Venus named after a man, the physicist James Clerk Maxwell (See Focus 4C, Naming features on Venus).
		Major topographic provinces on Venus are termed Chasmata, or canyons, Montes, or mountains, Planitiae, or low plains, Regiones, for areas of moderate relief, and Terrae, to describe extensive highlands.
		The only exceptions are Maxwell Montes, named in honor of the British physicist James Clerk Maxwell, and Alpha and Beta (Regio), the first two letters of the Greek alphabet.
	www.tufts.edu /as/astronomy/LangChap4a.html (4284 words)

	Referenced Glossary for Planetary Geology for Teachers (Site not responding. Last check: 2007-11-02)
		It is separated from the surrounding rolling uplands by relatively steep flanks, and the western portion is a vast plateau, Lakshmi Planum, some 2000 kilometers across.
		Mass movement Unit downslope movement of a portion of the land surface, as in creep, landslide or slip (Bates and Jackson, 1984).
		Maxwell Montes (Venus) Maxwell Montes in Ishtar Terra is the highest peak on Venus.
	wapi.isu.edu /Geo_Pgt/PGFT_home/PGfTHome_pages/referenced_glossary_for_planetar.htm (13369 words)

	Ames Archive: Magellan Images
		Akna Mountains and Crater Wanda (Lakshmi Planum) (caption)
		Sedna Planitia south of Danu Montes, 60 deg N by 344 deg (text file)
		Lakshmi Planum with craters Grazina and Rita, 70 deg N by 339 deg (text file)
	www.seds.org /~spider/spider/dbishop/amesarch/magellan.html (792 words)

	[No title]
		It is thought that these domes were formed by the extrusion of high viscosity lava.
		There is some important information there that will help you learn more.
		Volcanic "pancake" domes in Tinatin Planitia, Venus; Wheatley Crater, Venus; Lava Channels, Lo Shen Valles, Venus from Magellan cycle 2; Akna Montes mountain belt, Venus; Addams Crater, Venus and outflow; Corona chain near Themis Regio,Venus; Press release image of wind streaks on Venus;
	www.astro.washington.edu /larson/Astro150b/Lectures/Venus/venus.html (2337 words)

	THE MAN WHO COUNTS-PAGE 2
		The flush on Sparrow's cheek, spreading down face and neck to suffuse what was visible of her chest, was very pretty indeed.
		Venusberg is the most beautiful city in the known universe, nestled in the saddle between lakes Collette and Sacajewa, out on the rolling green grasslands of Lakshmi Planum, Akna Montes far to the west, Maxwell yet farther to the east.
		A long, doubtful look, as his fingers slowly stroked the smooth, dark wood butt of his crossbow.
	www.scifi.com /scifiction/originals/originals_archive/barton/barton2.html (8035 words)

	Compensation of Terra, Venus (ResearchIndex)
		Abstract: We have used spherical harmonic representations of the Venus topography and obtained from data, to evaluate isostatic support in several areas within the Terra highlands including the Lakshmi plateau, its surrounding mountain belts namely Akna and and Maxwell Montes, and the Tessera province.
		We find that topography in is largely compensated Regional geoid-topography variations in the subregions can be explained by a combination of Airy thickening) and thermal thinning) mechanisms.
		0.9: Venus Resurfacing Rates: Constraints - Provided By Monte
	citeseer.ist.psu.edu /376061.html (170 words)

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