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Mackinac Island meteorite

Coordinates: 02°07′02″S 05°31′22.43″W / 2.11722°S 5.5228972°W / -2.11722; -5.5228972
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Mackinac Island meteorite
TypeIron
Parent bodyUnknown
CompositionNickel, iron, Kamacite, taenite[1][2]
Weathering gradeLarge-scale, cavernous weathering[2]
CountryMars
RegionMeridiani Planum
Coordinates02°07′02″S 05°31′22.43″W / 2.11722°S 5.5228972°W / -2.11722; -5.5228972[3]
Observed fallNo
Fall datePossibly late Noation
Found date2009-10-13[4]
Strewn fieldPossibly[5]
Related media on Wikimedia Commons

Mackinac Island meteorite was found on Mars by the Opportunity rover on 2009-10-13.

History

Mackinac Island was the third of three iron meteorites encountered by the rover on Meridiani Planum within a few hundred meters, the others being Shelter Island and Block Island.[2]

Mackinac Island may have fallen on Mars in the late Noachian period and is extensively weathered.[2][5]

Mineralogy

Classification

See also

References

  1. ^ Nemiroff, Robert (13). "2009 August 13". Astronomy Picture of the Day. NASA. Retrieved 5 January 2013. {{cite web}}: Check date values in: |date= and |year= / |date= mismatch (help); Unknown parameter |coauthors= ignored (|author= suggested) (help); Unknown parameter |month= ignored (help)
  2. ^ a b c d Ashley, J. W. (2011). "Evidence for mechanical and chemical alteration of iron-nickel meteorites on Mars: Process insights for Meridiani Planum". Journal of Geophysical Research: Planets (1991–2012). 116 (E7). doi:10.1029/2010JE003672. Retrieved 5 January 2013. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help); Unknown parameter |month= ignored (help)
  3. ^ Google Mars
  4. ^ ATKINSON, NANCY (18). "Opportunity Discovers Still Another Meteorite! Find It on Google Mars". Universe Today. Space.com. Retrieved 5 January 2013. {{cite web}}: Check date values in: |date= and |year= / |date= mismatch (help); Unknown parameter |month= ignored (help)
  5. ^ a b Beech, Martin (2010). "The making of Martian meteorite Block Island" (PDF). Monthly notices of the Royal Astronomical Society. 404. doi:10.1111/j.1365-2966.2010.16350.x. Retrieved 5 January 2013. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)CS1 maint: unflagged free DOI (link)