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CI chondrite
— Group —
Type
Chondrite
Structural classification
?
Class
Carbonaceous chondrite
Subgroups
None?
Parent body
Unknown
Composition
?
Total known specimens
Debated: 5–10+
TKW
17 kilograms (37 lb)
Alternative names
CI chondrites, C1 chondrites, CI chondrite meteorites, C1 chondrite meteorites
CI chondrites, also called C1 chondrites or Ivuna-type carbonaceous chondrites, are a group of rare carbonaceous chondrite, a type of stony meteorite. They are named after the Ivuna meteorite, the type specimen. CI chondrites have been recovered in France, Canada, India, and Tanzania. Their overall chemical composition closely resembles the elemental composition of the Sun (and hence the whole Solar System), more so than any other type of meteorite.
CI chondrites are rich in volatiles- water, organics, and other light elements/compounds. They have more water than comet 67P/Churyumov–Gerasimenko.[1][2] Some specimens which are classified as borderline CIs found in Antarctica are sometimes referred to as a separate group, the CY chondrites.
^Rickman, H. (2017). Origin and Evolution of Comets: Ten Years after the Nice Model and One Year after Rosetta. World Scientific. ISBN 978-981-3222-57-1.
^Cite error: The named reference bmgm21 was invoked but never defined (see the help page).
CIchondrites, also called C1 chondrites or Ivuna-type carbonaceous chondrites, are a group of rare carbonaceous chondrite, a type of stony meteorite....
A chondrite /ˈkɒndraɪt/ is a stony (non-metallic) meteorite that has not been modified, by either melting or differentiation of the parent body. They...
their abundance in CIchondrites). In this sense, they are chemically the most primitive known meteorites. [citation needed] CIchondrites typically contain...
interpretation of quantum mechanics Cubic inch, a unit of volume CI group, a type of carbonaceous chondrite meteorite Carrier interferometry, a radio and optical...
definition was found: C-chondrites contain proportionally higher magnesium than ordinary chondrites. The C-chondrites subdivide into CI, CM, CO, CV, CK, CR...
J (Jul 2010). "Carbonates in CM chondrites: Complex formation histories and comparison to carbonates in CIchondrites". Meteoritics & Planetary Science...
group, CIchondrites are considered a better match for the composition of the early Solar System. Moreover, the chemical analysis of CIchondrites is more...
Bischoff, Adolf (1994). "Chemistry, petrography, and mineralogy of the Tonk CIchondrite: Preliminary results". Meteoritics. 29 (4): 462–463. Ministry of Panchayati...
CIchondrites which, paradoxically, do not contain any chondrules despite their designation as chondrites, whereas ordinary and enstatite chondrites contain...
22 January 1911. It is one of five known meteorites belonging to the CIchondrite group. This group is remarkable for having an elemental distribution...
earth. Cubanite has been found in carbonaceous chondrite meteorites, specifically class CI-chondrites, as well as in cometary samples from NASA’s Stardust...
indicated a correspondence with the CI and/or CM carbonaceous chondrite meteorites, including carbonaceous-chondrite mineral magnetite. Magnetite, a spectrally...
evolution. Ratios larger or smaller than compared with that in the sun or CIchondrites, which are used as proxy for the sun, indicate that significant hydrodynamic...
France. The meteorite is one of five known meteorites belonging to the CIchondrite group. This group is remarkable for having an elemental distribution...
have a carbon concentration that is five to ten times less than in CIchondrites, a form of meteor that is believed to represent the composition of the...
matches ancient eucrite chondrites, which originate from the asteroid Vesta in the outer asteroid belt. CI, CM, and eucrite chondrites are believed to have...
CM chondrites, together with the CI group, are rich in carbon and are among the most chemically primitive meteorites. Like other CM chondrites, Murchison...
respect to the Sun or the gas planets. Certain type of meteorites, CI-chondrites, have chemical compositions that are almost identical to the solar photosphere...
isotopic compositions with signatures similar to those of CI and CM carbonaceous chondrites were found in Tunguska peat layers dating from the TE (Kolesnikov...
Chondrite Carbonaceous CB CH CI CK CM CO CR CV C ungrouped Enstatite EH EL Kakangari Ordinary H L LL Rumuruti Achondrite Iron IC IIAB IIC IID IIE IIG...
reported present. Modern science records the meteorite as a L6 ordinary chondrite. The Wold Cottage meteorite was the largest meteorite observed to fall...
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