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- Martian_spherules abstract "Martian spherules (also known as blueberries due to their blue hue in false-color images released by NASA) are the abundant spherical hematite inclusions discovered by the Mars rover Opportunity at Meridiani Planum on the planet Mars. They are found in situ embedded in a sulfate salt evaporitic matrix, and also loose on the surface.The shapes by themselves don't reveal the particles' origin with certainty. "A number of straightforward geological processes can yield round shapes," said Dr. Hap McSween, an Opportunity science team member from the University of Tennessee, Knoxville. They include accretion under water, but apparent pores in the particles make alternative possibilities of meteor impacts or volcanic eruptions more likely origins, he said.For example, ranging in size from less than 100 micrometers to more than 250 micrometers, similar spherules were found in Moon soil samples collected by Apollo 12 at the Procellarum Basin, and Apollo 14 near Mare Imbrium (Sea of Rains), the dark crater that dominates the Moon's face, and their properties were consistent with expectations for creation by meteor impacts."We see these strange round objects we're calling "spherules" embedded in the outcrop, like blueberries in a muffin. The outcrop erodes away as it gets sandblasted, and the spherules (which seem to resist erosion better than the rest of the outcrop does) fall out and roll down the hill. Weird." said Dr. Steve Squyres.The spheres may have formed when molten rock was sprayed into the air by a volcano or a meteor impact. Or, they may be concretions, or accumulated material, formed by minerals coming out of solution as water diffused through rock, he said in a February 9 press conference.Not only are there spherules on the surface but they are also found deeper in the Martian soil. The difference between these and ones which were found at the surface was that they had a very shiny surface, that created strong glints and glares which made them appear shiny or polished. On March 2, Opportunity mission scientists reported that they concluded a survey of the distribution of spherules in the bedrock. They found that the spherules spread out evenly and randomly inside the rocks, and not in layers. This supports the notion that they grew in place, since if their origin was related to volcanic or meteoric episodes one would expect layers of spherules as a "record in time" for each event. This observation was added to the list of evidence for liquid water being present at this rock site, where it is thought the spherules formed.".
- Martian_spherules thumbnail Opportunity_photo_of_Mars_outcrop_rock.jpg?width=300.
- Martian_spherules wikiPageExternalLink nph-bib_query?bibcode=2005LPI....36.2026G&db_key=AST&data_type=HTML&format=&high=44fdafdf2530369.
- Martian_spherules wikiPageExternalLink nph-bib_query?bibcode=2007LPI....38.1922B&db_key=AST&data_type=HTML&format=&high=44fdafdf2530369.
- Martian_spherules wikiPageExternalLink nph-bib_query?bibcode=2007LPI....38.2053A&db_key=AST&data_type=HTML&format=&high=44fdafdf2530369.
- Martian_spherules wikiPageExternalLink 20040204a.html.
- Martian_spherules wikiPageExternalLink pressreleases-2004.html.
- Martian_spherules wikiPageExternalLink 2026.pdf.
- Martian_spherules wikiPageExternalLink 1922.pdf.
- Martian_spherules wikiPageExternalLink 2053.pdf.
- Martian_spherules wikiPageExternalLink 040617082028.htm.
- Martian_spherules wikiPageExternalLink 1697.
- Martian_spherules wikiPageExternalLink Ce-vita-su-Marte.
- Martian_spherules wikiPageExternalLink marsmarbles.html.
- Martian_spherules wikiPageID "797624".
- Martian_spherules wikiPageRevisionID "567399397".
- Martian_spherules hasPhotoCollection Martian_spherules.
- Martian_spherules subject Category:Mars.
- Martian_spherules subject Category:Rocks_on_Mars.
- Martian_spherules type NaturalObject100019128.
- Martian_spherules type Object100002684.
- Martian_spherules type PhysicalEntity100001930.
- Martian_spherules type Rock109416076.
- Martian_spherules type RocksOnMars.
- Martian_spherules type Whole100003553.
- Martian_spherules comment "Martian spherules (also known as blueberries due to their blue hue in false-color images released by NASA) are the abundant spherical hematite inclusions discovered by the Mars rover Opportunity at Meridiani Planum on the planet Mars. They are found in situ embedded in a sulfate salt evaporitic matrix, and also loose on the surface.The shapes by themselves don't reveal the particles' origin with certainty. "A number of straightforward geological processes can yield round shapes," said Dr.".
- Martian_spherules label "Esferas marcianas".
- Martian_spherules label "Esférulas marcianas".
- Martian_spherules label "Marsjańskie sferule".
- Martian_spherules label "Martian spherules".
- Martian_spherules label "藍莓石".
- Martian_spherules sameAs Esférulas_marcianas.
- Martian_spherules sameAs Marsjańskie_sferule.
- Martian_spherules sameAs Esferas_marcianas.
- Martian_spherules sameAs m.03cw52.
- Martian_spherules sameAs Q3310161.
- Martian_spherules sameAs Q3310161.
- Martian_spherules sameAs Martian_spherules.
- Martian_spherules wasDerivedFrom Martian_spherules?oldid=567399397.
- Martian_spherules depiction Opportunity_photo_of_Mars_outcrop_rock.jpg.
- Martian_spherules isPrimaryTopicOf Martian_spherules.