Geologic map of the eastern equatorial region of Mars
Ronald Greeley,John E. Guest +1 more
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The article was published on 1987-01-01 and is currently open access. It has received 497 citations till now. The article focuses on the topics: Mars Exploration Program & Geologic map.read more
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Journal ArticleDOI
Mars Orbiter Laser Altimeter: Experiment summary after the first year of global mapping of Mars
David E. Smith,Maria T. Zuber,Herbert Frey,James B. Garvin,James W. Head,Duane O. Muhleman,Gordon H. Pettengill,Roger J. Phillips,Sean C. Solomon,H. Jay Zwally,W. Bruce Banerdt,Thomas C. Duxbury,Matthew P. Golombek,Frank G. Lemoine,Gregory A. Neumann,David D. Rowlands,Oded Aharonson,Peter G. Ford,Anton B. Ivanov,Catherine L. Johnson,Patrick J. McGovern,James B. Abshire,Robert S. Afzal,Xiaoli Sun +23 more
TL;DR: The Mars Orbiter Laser Altimeter (MOLA) has been used to measure the topography, surface roughness, and 1.064-μm reflectivity of Mars and the heights of volatile and dust clouds as mentioned in this paper.
Journal ArticleDOI
Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) on Mars Reconnaissance Orbiter (MRO)
Scott L. Murchie,Raymond E. Arvidson,Peter D. Bedini,K. Beisser,Jean-Pierre Bibring,Janice L. Bishop,John D. Boldt,P. Cavender,T. Choo,R. T. Clancy,E. H. Darlington,David J. Des Marais,R. C. Espiritu,D. Fort,Robert O. Green,Edward A. Guinness,John Hayes,Christopher D. Hash,K. J. Heffernan,J. Hemmler,Gene A. Heyler,David C. Humm,J. Hutcheson,Noam R. Izenberg,R. Lee,J. Lees,D. A. Lohr,Erick Malaret,Terry Z. Martin,J. A. McGovern,Patrick C. McGuire,Richard V. Morris,John F. Mustard,Shannon M. Pelkey,Edgar A. Rhodes,Mark S. Robinson,Ted L. Roush,Edward D. Schaefer,G. Seagrave,Frank P. Seelos,P. Silverglate,S. Slavney,M. D. Smith,W. J. Shyong,K. Strohbehn,H. W. Taylor,P. Thompson,B. Tossman,M. Wirzburger,M. J. Wolff +49 more
TL;DR: The Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) is a hyperspectral imager on the Mars Reconnaissance Orbiter (MRO) spacecraft as discussed by the authors, which consists of three subassemblies, a gimbaled Optical Sensor Unit (OSU), a Data Processing Unit (DPU), and the Gimbal Motor Electronics (GME).
Journal ArticleDOI
Orbital Identification of Carbonate-Bearing Rocks on Mars
Bethany L. Ehlmann,John F. Mustard,Scott L. Murchie,François Poulet,Janice L. Bishop,Adrian J. Brown,Wendy M. Calvin,Roger N. Clark,David J. Des Marais,Ralph E. Milliken,Leah H. Roach,Ted L. Roush,Gregg A. Swayze,James J. Wray +13 more
TL;DR: The presence of carbonate as well as accompanying clays suggests that waters were neutral to alkaline at the time of its formation and that acidic weathering, proposed to be characteristic of Hesperian Mars, did not destroy these carbonates and thus did not dominate all aqueous environments.
Journal ArticleDOI
Identification of hydrated silicate minerals on Mars using MRO‐CRISM: Geologic context near Nili Fossae and implications for aqueous alteration
Bethany L. Ehlmann,John F. Mustard,Gregg A. Swayze,Roger N. Clark,Janice L. Bishop,Janice L. Bishop,François Poulet,David J. Des Marais,Leah H. Roach,Ralph E. Milliken,James J. Wray,Olivier S. Barnouin-Jha,Scott L. Murchie +12 more
TL;DR: In this article, the authors used the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) onboard the Mars Reconnaissance Orbiter (MRO) to detect alteration minerals in the Noachian terrain west of the Isidis basin.
Journal ArticleDOI
The Evolution of the Martian Hydrosphere: Implications for the Fate of a Primordial Ocean and the Current State of the Northern Plains
TL;DR: In this article, the authors consider the hydraulic and thermal conditions that gave rise to the elevated source regions of the Late Hesperian outflow channels and explore their implications for the evolution of the Martian hydrosphere.
References
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ReportDOI
Geologic map of the western equatorial region of mars
David H. Scott,Kenneth L. Tanaka +1 more
TL;DR: Lowland terrains as mentioned in this paper consist of all plains-forming units between the highland-lowland boundary scarp and the north edge of the map area, exclusive of materials of the western volcanic assemblage on the Tharsis swell.
Journal ArticleDOI
Thermal and albedo mapping of Mars during the Viking primary mission
Hugh H. Kieffer,Terry Z. Martin,Alan Peterfreund,Bruce M. Jakosky,Ellis D. Miner,Frank D. Palluconi +5 more
TL;DR: The behavior of Mars as observed by the Viking infrared thermal mapper (IRTM) is considered in this article, where the IRTM is a 28-channel, 4-telescope radiometer that operated in six spectral bands.
Journal ArticleDOI
Mars: Fretted and chaotic terrains
TL;DR: Fretted and chaotic terrains are members of a larger family of lowland terrains on the Martian surface as discussed by the authors, characterized by extensive, smooth, lowland plains separated from the old cratered upland by an abrupt escarpment of highly irregular planimetric configuration.
Journal ArticleDOI
Preliminary mariner 9 report on the geology of Mars
John F. McCauley,Michael H. Carr,James A. Cutts,William K. Hartmann,Harold Masursky,D.J. Milton,Robert P. Sharp,Don E. Wilhelms +7 more
TL;DR: In this article, the equatorial region between 30 deg N and 30 deg S latitude is depicted in four geologic sketch maps, and seventeen geologic units are defined on the basis of their textural characteristics.
Journal ArticleDOI
The martian hemispheric dichotomy may be due to a giant impact
TL;DR: In this article, the authors proposed that the large expanse of lowlands of Mars is substantially due to the formation of a large impact basin early in the planet's history, which has markedly influenced the character of the Martian surface.
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Mars Orbiter Laser Altimeter: Experiment summary after the first year of global mapping of Mars
David E. Smith,Maria T. Zuber,Herbert Frey,James B. Garvin,James W. Head,Duane O. Muhleman,Gordon H. Pettengill,Roger J. Phillips,Sean C. Solomon,H. Jay Zwally,W. Bruce Banerdt,Thomas C. Duxbury,Matthew P. Golombek,Frank G. Lemoine,Gregory A. Neumann,David D. Rowlands,Oded Aharonson,Peter G. Ford,Anton B. Ivanov,Catherine L. Johnson,Patrick J. McGovern,James B. Abshire,Robert S. Afzal,Xiaoli Sun +23 more