Source:http://linkedlifedata.com/resource/pubmed/id/17885125
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
5845
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| pubmed:dateCreated |
2007-9-21
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| pubmed:abstractText |
Water has supposedly marked the surface of Mars and produced characteristic landforms. To understand the history of water on Mars, we take a close look at key locations with the High-Resolution Imaging Science Experiment on board the Mars Reconnaissance Orbiter, reaching fine spatial scales of 25 to 32 centimeters per pixel. Boulders ranging up to approximately 2 meters in diameter are ubiquitous in the middle to high latitudes, which include deposits previously interpreted as finegrained ocean sediments or dusty snow. Bright gully deposits identify six locations with very recent activity, but these lie on steep (20 degrees to 35 degrees) slopes where dry mass wasting could occur. Thus, we cannot confirm the reality of ancient oceans or water in active gullies but do see evidence of fluvial modification of geologically recent mid-latitude gullies and equatorial impact craters.
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| pubmed:commentsCorrections | |
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
IM
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| pubmed:chemical | |
| pubmed:status |
MEDLINE
|
| pubmed:month |
Sep
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| pubmed:issn |
1095-9203
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| pubmed:author |
pubmed-author:BanksM EME,
pubmed-author:BridgesN TNT,
pubmed-author:ByrneSS,
pubmed-author:ChuangF CFC,
pubmed-author:DavatzesAA,
pubmed-author:DelamereW AWA,
pubmed-author:DundasC MCM,
pubmed-author:EliasonE MEM,
pubmed-author:FishbaughK EKE,
pubmed-author:GrantJ AJA,
pubmed-author:GriffenJ SJS,
pubmed-author:GulickV CVC,
pubmed-author:HansenC JCJ,
pubmed-author:HerkenhoffK EKE,
pubmed-author:JaegerW LWL,
pubmed-author:KeszthelyiLL,
pubmed-author:KirkR LRL,
pubmed-author:KolbK JKJ,
pubmed-author:Martínez-AlonsoSS,
pubmed-author:McEwenA SAS,
pubmed-author:MellonM TMT,
pubmed-author:MilazzoM PMP,
pubmed-author:MurchieS LSL,
pubmed-author:OkuboC HCH,
pubmed-author:RussellP SPS,
pubmed-author:SeelosFF,
pubmed-author:SeelosKK,
pubmed-author:SquyresS WSW,
pubmed-author:ThomasNN,
pubmed-author:ThomsonB JBJ,
pubmed-author:TornabeneL LLL,
pubmed-author:UrruGG,
pubmed-author:WeitzC MCM
|
| pubmed:issnType |
Electronic
|
| pubmed:day |
21
|
| pubmed:volume |
317
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
1706-9
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| pubmed:dateRevised |
2008-11-21
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| pubmed:meshHeading | |
| pubmed:year |
2007
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| pubmed:articleTitle |
A closer look at water-related geologic activity on Mars.
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| pubmed:affiliation |
Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85721, USA. mcewen@lpl.arizona.edu
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| pubmed:publicationType |
Journal Article
|