Block Island meteorite
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| Block Island meteorite | |
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| Block Island meteorite | |
| Type | Iron |
| Parent body | Unknown |
| Composition | Nickel, iron, Kamacite, taenite[1][2] |
| Weathering grade | Large-scale, cavernous weathering[2] |
| Country | Mars |
| Region | Meridiani Planum |
| Coordinates | 02°07′00.85″S 05°31′02.85″W / 2.1169028°S 5.5174583°WCoordinates: 02°07′00.85″S 05°31′02.85″W / 2.1169028°S 5.5174583°W[3] |
| Observed fall | No |
| Fall date | Possibly late Noation |
| Found date | 2009-07-17[4] |
| TKW | >0.5 short tons (0.45 t)[5] |
| Strewn field | Possibly[6] |
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| Block Island in close up. | |
Block Island meteorite was found on Mars by the Opportunity rover on 2009-07-17. It is about 67 centimetres (26 in) across.[1]
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History [edit]
Block Island was the second of three iron meteorites encountered by the rover on Meridiani Planum within a few hundred meters, the others being Shelter Island and Mackinac Island.[2]
Block Island may have fallen on Mars in the late Noachian period and is extensively weathered.[2][6]
Mineralogy [edit]
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This section is empty. You can help by adding to it. (January 2013) |
Classification [edit]
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This section is empty. You can help by adding to it. (January 2013) |
See also [edit]
- Atmospheric reentry
- Bounce Rock
- Glossary of meteoritics
- Heat Shield Rock
- List of Martian meteorites
- List of meteorites on Mars
- Mackinac Island meteorite
- Oileán Ruaidh meteorite
- Shelter Island meteorite
References [edit]
- ^ a b Nemiroff, Robert; Jerry Bonnell (13). "2009 August 13". Astronomy Picture of the Day. NASA. Retrieved 5 January 2013.
- ^ a b c d Ashley, J. W.; et al (July 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.
- ^ Google Mars
- ^ Atkinson, Nancy. "Opportunity Spies Unusual Rock — Large Meteorite?". Universe Today. Retrieved 5 January 2013.
- ^ Staff (14 September 2010). "Mars' Odd 'Block Island' Meteorite - A Clue to an Ancient Atmosphere". Daily Galaxy. Retrieved 5 January 2013.
- ^ a b Beech, Martin; Ian M. Coulson (2010). "The making of Martian meteorite Block Island". Monthly notices of the Royal Astronomical Society 404. doi:10.1111/j.1365-2966.2010.16350.x. Retrieved 5 January 2013.
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