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Carbonaceous chondrite

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547: 795:, have shown that amino acids may form under a range of possible abiotic conditions with equal (racemic) mixtures of D- and L-enantiomers. Thus, the ratios between enantiomers for a given amino acid may discriminate between biotic and abiotic formation mechanisms. In the first characterization of amino acids in Murchison, all chiral examples were present in racemic mixtures indicating an abiotic origin. This is consistent with proposed sythetic pathways, as the formation of isovaline and other α-dialkyl amino acids in CM chondrites has been attributed to the 803: 776:, which are rare on Earth. Since then, the number of characterized amino acids in the Murchison meteorite has risen to 96, including 12 of the 20 common biological amino acids, along with hundreds more that have been detected, but remain uncharacterized. While the abundance of amino acids present in terrestrial soils presents a potential source of contamination, most of the amino acids characterized in Murchison are terrestrially rare or absent. 363: 38: 656: 555: 415: 410: 390: 513: 1314: 887:. If a distribution of amino acids in an extraterrestrial sample is found to be chirally asymmetric, display structural isomeric preference, and carry C, N, and D depletions relative to associated inorganic material, a compelling case may be made for its biological origin. With the current interest in 882:
have proposed a “Ladder of Life Detection” threshold of >20% enantiomeric excess in amino acids to distinguish extraterrestrial biosignatures. But, as previously mentioned, recent studies of carbonaceous chondrites and complementary experimental investigations have demonstrated that even larger
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ultraviolet light has been shown to generate L-excesses in crystallizing amino acids for experimental conditions mimicking alteration on asteroids, and this is thought to be the dominant extraterrestrial source of chiral symmetry breaking (i.e., the favouring of one enantiomer over another). It is
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More recently, amino acids from several carbonaceous chondrites have been identified with significant L-enantiomeric excesses. L-excesses from 3 – 15% in several non-protein α-dialkyl amino acids have been found in the Murchison and Murray meteorites. Their extraterrestrial origin is indicated by
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excesses up to ~60%, with carbon isotope measurements indicating an extraterrestrial origin due to significant enrichments in C. In Tagish Lake, proteinogenic amino acids show both significant L-excesses, and racemic mixtures: glutamic acid, serine, and threonine were found to have ~50 – 99%
534:"H" stands for "high metal" because CH chondrites may contain up to as much as 40% of metal. That makes them one of the most metal-rich of any of the chondrite groups, second only to the CB chondrites and some ungrouped chondrites such as NWA 12273. The first meteorite discovered was 883:
enantiomeric excesses may be produced by abiotic pathways. To identify chiral asymmetry (enantiomeric excess) of biological origin, Glavin et al. (2020) emphasize three criteria that must be met: chiral asymmetry, light C isotopic composition, and simplified distribution of
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notable that only excesses of the L-enantiomer have been observed in extraterrestrial amino acids, suggesting that the abiotic process responsible for enantiomeric enrichments may be the original source of the L-amino acid selectivity currently observed in terrestrial life.
354:. Four others have been found by Japanese field parties in Antarctica. In general, the extreme fragility of CI chondrites causes them to be highly susceptible to terrestrial weathering, and they do not survive on Earth's surface for long after they fall. 791:. Living beings use L-amino acids, although there is no apparent reason why one enantiomer is favoured over the other as they behave equivalently in biological systems. In contrast with terrestrial biology, early laboratory studies, including the famous 853:
of the host meteorite correlates with increasing observed L-enantiomeric excess. Large L-excesses for α-H amino acids have also been reported, but these are more problematic due to the potential for terrestrial contamination. The ungrouped C2 chondrite
235:, which is very often the first letter of the name of a prominent meteorite—often the first to be discovered—in the group. Such meteorites are often named for the place where they fell, thus giving no clue as to the physical nature of the group. Group 278:
being characteristic. The presence of volatile organic chemicals and water indicates that they have not undergone significant heating (>200 Â°C) since they were formed, and their compositions are considered to be close to that of the
193:) before they got into the cloud of matter from which the Solar System was formed. Such star explosions release pressure waves that can condense clouds of matter in their surroundings, leading to the formation of new ones, stars and 895:) and Mars headed by NASA and other space agencies , the subsequent analysis of returned samples devoid of terrestrial contamination will provide the best opportunity to discover potential biosignatures in our Solar System. 440:
meteorite. Many falls of this type have been observed and CM chondrites are known to contain a rich mix of complex organic compounds such as amino-acids and purine/pyrimidine nucleobases. CM chondrite famous falls:
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Carbonaceous chondrites are grouped according to distinctive compositions thought to reflect the type of parent body from which they originated. These C chondrite groups are now each named with a standard two-letter
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enrichments in C and deuterium compared to terrestrial values. Further characterization of L-isovaline excesses up to 20.5% in a range of carbonaceous chondrite groups have supported a hypothesis that increasing
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condensed. Other groups of C chondrites, e.g., CO, CV, and CK chondrites, are relatively poor in volatile compounds, and some of these have experienced significant heating on their parent asteroids.
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Ehrenfreund et al. (2001) found that amino acids in CI chondrites Ivuna and Orgueil were present at much lower concentrations than in CM chondrites (~30%), and that they had a distinct composition high in
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It has been proposed that extraterrestrial amino acid L-excesses observed in carbonaceous chondrites are a result of differences in the crystallization behaviour of the enantiomers.
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Martin Vieweg: Ancient carbonates are evidence of water, on: Wissenschaft.de from January 22, 2021 The oldest carbonates in the solar system , on: EurekAlert! from January 20, 2021
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Gujba meteorite, a bencubbinite found in Nigeria. Polished slice, 4.6 Ă— 3.8 cm. Note the nickel-iron chondrules, which have been age-dated to 4.5627 billion years.
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Officially recognized in 2022 after minimum specimens (five) described. CL chondrites, named after type specimen(s) Loongana, are chondrite-rich, metal-rich, and volatile-poor.
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Glavin, Daniel P.; Elsila, Jamie E.; McLain, Hannah L.; Aponte, José C.; Parker, Eric T.; Dworkin, Jason P.; Hill, Dolores H.; Connolly, Harold C.; Lauretta, Dante S. (2021).
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The old, unique C1 chondrite Flensburg – Insight into the first processes of aqueous alteration, brecciation, and the diversity of water-bearing parent bodies and lithologies
181:) and tiny nanometer-sized diamonds that apparently were not formed in our solar system. These presolar minerals were probably formed during the explosion of a nearby 200:
Another carbonaceous chondrite, the Flensburg meteorite (2019), provides evidence of the earliest known occurrence of liquid water in the young Solar System to date.
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Gattacceca, JĂ©rĂ´me; McCubbin F. M.; Grossman J.; Bouvier A.; Chabot N. L.; D'Orazio M.; Goodrich C.; Greshake A.; Gross J.; Komatsu M.; Miao B.; Schrader D. (2022).
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The carbonaceous chondrites were not exposed to higher temperatures, so that they are hardly changed by thermal processes. Some carbonaceous chondrites, such as the
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Amino acids in carbonaceous chondrites have important implications for theories describing the delivery of organic compounds to the early Earth and the subsequent
351: 331:. It is thought they have not been heated above 50 Â°C (122 Â°F), indicating that they condensed in the cooler outer portion of the solar nebula. 493: 433: 116: 618: 1548:
Glavin, Daniel P.; Alexander, Conel M. O'D.; Aponte, José C.; Dworkin, Jason P.; Elsila, Jamie E.; Yabuta, Hikaru (2018-01-01), Abreu, Neyda (ed.),
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Pearce, Ben K. D.; Pudritz, Ralph E. (2015). "Seeding the Pregenetic Earth: Meteoritic Abundances of Nucleobases and Potential Reaction Pathways".
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Glavin, Daniel P.; Elsila, Jamie E.; Burton, Aaron S.; Callahan, Michael P.; Dworkin, Jason P.; Hilts, Robert W.; Herd, Christopher D. K. (2012).
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Kvenvolden, Keith; Lawless, James; Pering, Katherine; Peterson, Etta; Flores, Jose; Ponnamperuma, Cyril; Kaplan, I. R.; Moore, Carleton (1970).
518: 2060:"Unusual nonterrestrial l-proteinogenic amino acid excesses in the Tagish Lake meteorite: l-amino acid excesses in the Tagish Lake meteorite" 1888:"Distribution and Stable Isotopic Composition of Amino Acids from Fungal Peptaibiotics: Assessing the Potential for Meteoritic Contamination" 1337: 538:. Chemically, these chondrites are closely related to CR and CB groups. All specimens of this group belong only to petrologic types 2 or 3. 535: 159: 1214: 304:
by comparison to their abundance in CI chondrites). In this sense, they are chemically the most primitive known meteorites.
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Garcia, Adrien D.; Meinert, Cornelia; Sugahara, Haruna; Jones, Nykola C.; Hoffmann, Søren V.; Meierhenrich, Uwe J. (2019-03-16).
300:(Tanzania), have chemical compositions that are close to that measured in the solar photosphere (aside from gaseous elements, 2240: 1633: 1579: 1358: 1082: 1057: 1016: 999: 982: 835:. This implies that they had formed by a different synthetic pathway, and on a different parent body from the CM chondrites. 2968: 2917: 2284: 2358: 1992:"Extraterrestrial amino acids and L-enantiomeric excesses in the CM 2 carbonaceous chondrites Aguas Zarcas and Murchison" 92:. They include some of the most primitive known meteorites. The C chondrites represent only a small proportion (4.6%) of 1943:"The effects of parent body processes on amino acids in carbonaceous chondrites: Amino acids in carbonaceous chondrites" 1656:"Total Chemical Synthesis of a D-Enzyme: The Enantiomers of HIV-1 Protease Show Reciprocal Chiral Substrate Specificity" 1432:
Metzler, K.; Hezel, D. C.; Barosch, J.; Wölfer, E.; Schneider, J. M.; Hellmann, J. L.; Berndt, J.; et al. (2021).
1039: 2985: 1550:"Chapter 3 - The Origin and Evolution of Organic Matter in Carbonaceous Chondrites and Links to Their Parent Bodies" 2990: 312: 1103:"Extraterrestrial amino acids in Orgueil and Ivuna: Tracing the parent body of CI type carbonaceous chondrites" 670:
in CI and CM carbonaceous chondrites is an insoluble complex material. That is similar to the description for
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Wing, Michael R.; Jeffrey L. Bada (1992). "The origin of the polycyclic aromatic hydrocarbons in meteorites".
796: 1758:"Nonprotein Amino Acids from Spark Discharges and Their Comparison with the Murchison Meteorite Amino Acids" 586:(France). The chondrule size is only about 0.15 mm on average. They are all of petrologic type 3. 158:, contain calcium-aluminum-rich inclusions (CAIs). These are compounds that emerged early from the primeval 2411: 1236: 806:
The Strecker synthesis of alpha amino acids from carbonyl compounds in the presence of ammonia and cyanide.
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https://www.science.org/content/article/unusual-meteorite-more-valuable-gold-may-hold-building-blocks-life
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CI chondrites typically contain a high proportion of water (up to 22%), and organic matter in the form of
239:, where H is for "high metal" is so far the only exception. See below for name derivations of each group. 2973: 2797: 1549: 2100:
Glavin, Daniel P.; Burton, Aaron S.; Elsila, Jamie E.; Aponte, José C.; Dworkin, Jason P. (2020-06-10).
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Cronin, John R.; Chang, Sherwood (1993), Greenberg, J. M.; Mendoza-GĂłmez, C. X.; Pirronello, V. (eds.),
3064: 2922: 2912: 2701: 2696: 2397: 2059: 1942: 909: 792: 458: 450: 124: 558:(Australia). Although these chondrites contain over 50% nickel-iron metal, they are not classified as 2980: 2406: 2334: 1886:
Elsila, Jamie E.; Callahan, Michael P.; Glavin, Daniel P.; Dworkin, Jason P.; BrĂĽckner, Hans (2011).
316: 2634: 2402: 2393: 2383: 2277: 931:"Meteorites for the Sahara: Find locations, shock classification, degree of weathering and pairing" 765: 2942: 2691: 1433: 151:. In addition, they contain water and minerals that have been modified by the influence of water. 2314: 904: 855: 850: 820: 641: 190: 120: 787:. Conventionally, these are referred to as left-handed (L) and right-handed (D) by analogy with 562:
because their mineralogical and chemical properties are strongly associated with CR chondrites.
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C chondrites contain a relatively high proportion of carbon (up to 3%), which is in the form of
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Ehrenfreund, Pascale; Daniel P. Glavin; Oliver Botta; George Cooper; Jeffrey L. Bada (2001).
888: 867: 437: 2222: 2007: 1394: 371: 2890: 2787: 2769: 2523: 2170: 2003: 1899: 1836: 1824: 1769: 1714: 1702: 1613: 1498: 1448: 1390: 1280: 1169: 1114: 942: 523: 463: 128: 2477: 1602:"Organic Matter in Meteorites: Molecular and Isotopic Analyses of the Murchison Meteorite" 700:, hydroxy carboxylic acids, sulphonic and phosphonic acids, aliphatic, aromatic and polar 8: 2792: 2504: 2464: 2270: 1991: 783:, meaning that they have two possible non-superimposable mirror image structures, termed 741: 717: 689: 603: 598: 445: 405: 400: 395: 339: 170: 108: 104: 2368: 2174: 2159:"The Astrophysical Formation of Asymmetric Molecules and the Emergence of a Chiral Bias" 1903: 1840: 1773: 1718: 1617: 1502: 1452: 1284: 1173: 1118: 946: 2885: 2737: 2482: 2201: 2158: 2139: 2079: 2037: 1972: 1868: 1561: 1530: 1487:"Evidence for Extraterrestrial Amino-acids and Hydrocarbons in the Murchison Meteorite" 1464: 1414: 1296: 1270: 1185: 955: 930: 571: 1887: 1800: 1757: 1655: 802: 375: 3043: 3011: 2684: 2644: 2351: 2236: 2206: 2188: 2143: 2131: 2123: 2075: 2041: 2029: 1958: 1941:
Glavin, Daniel P.; Callahan, Michael P.; Dworkin, Jason P.; Elsila, Jamie E. (2010).
1923: 1915: 1860: 1852: 1805: 1787: 1738: 1730: 1683: 1675: 1629: 1575: 1522: 1514: 1468: 1418: 1354: 1292: 1142: 1137: 1102: 1078: 1053: 1012: 995: 978: 960: 884: 678: 503: 385: 194: 155: 100: 43: 2083: 1976: 1872: 1300: 1189: 1100: 2669: 2196: 2178: 2113: 2071: 2019: 2011: 1962: 1954: 1907: 1844: 1795: 1777: 1722: 1667: 1621: 1565: 1557: 1534: 1506: 1456: 1406: 1398: 1288: 1177: 1132: 1122: 950: 664: 593: 583: 498: 275: 255: 251: 2905: 2726: 2679: 2616: 2546: 2102:"The Search for Chiral Asymmetry as a Potential Biosignature in our Solar System" 1848: 1726: 1218: 838: 697: 343: 335: 297: 178: 112: 2118: 2101: 1625: 302:
and elements such as lithium which are underrepresented in the Sun's photosphere
2715: 2624: 2541: 2363: 2346: 2319: 1043:. In: Geochimica et Cosmochimica Acta, Vol. 293, 15 January 2021, pages 142-186 788: 608: 347: 212:
Some carbonaceous chondrites. From left to right: Allende, Yukon and Murchison.
93: 1601: 1460: 3058: 3031: 2937: 2927: 2759: 2742: 2589: 2262: 2192: 2127: 2033: 1919: 1856: 1791: 1734: 1679: 1518: 1373: 964: 859: 761: 1967: 1671: 1570: 3021: 2777: 2664: 2629: 2497: 2439: 2339: 2210: 2135: 1927: 1809: 1742: 1486: 1231: 1212:"Carbonaceous chondrite" Meteorite.fr: All About Meteorites: Classification 1146: 1127: 574:(Australia). These chondrites are closely related to the CO and CV groups. 559: 427: 284: 280: 163: 1911: 1864: 1782: 1687: 1526: 208: 2949: 2845: 2829: 2824: 2531: 2492: 2487: 2373: 2297: 1410: 737: 709: 701: 479: 2183: 2024: 1431: 2864: 2536: 2514: 2015: 1703:"A Production of Amino Acids Under Possible Primitive Earth Conditions" 1402: 1181: 892: 784: 693: 682: 308: 226: 174: 148: 47: 2391: 3038: 2900: 2869: 2782: 2604: 2594: 2561: 2551: 2420: 2329: 2305: 2293: 1756:
Wolman, Yecheskel; Haverland, William J.; Miller, Stanley L. (1972).
1510: 832: 780: 773: 705: 362: 328: 320: 186: 182: 144: 89: 85: 61: 475: 37: 3006: 2674: 2556: 1654:
Milton, R. C. deL.; Milton, S. C. F.; Kent, S. B. H. (1992-06-05).
1275: 713: 675: 483: 259: 140: 874: 2819: 2599: 2584: 2579: 845: 816: 812: 757: 749: 745: 671: 655: 436:(Ukraine), but the most famous member is the extensively studied 324: 271: 267: 229:
do not begin with this letter) plus a capital letter in the spot
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Some primitive carbonaceous chondrites, such as the CM chondrite
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meteorites comprising at least 8 known groups and many ungrouped
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Enantiomeric excesses observed in extraterrestrial amino acids
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The group takes its name from the most representative member:
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crystals occurring in a black matrix, and a possible lack of
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The Encyclopedia of Astrobiology, Astronomy, and Spaceflight
1547: 2230: 1940: 1885: 1254: 1241: 1077:. Cambridge: Cambridge University Press. pp. 121–124. 879: 2156: 2057: 844:
their absence in biological systems and significant heavy
2099: 1989: 315:. Aqueous alteration promotes a composition of hydrous 242:
Several groups of carbonaceous chondrites, notably the
1353:. Cambridge: Cambridge University Press. p. 139. 744:
meteorite was found to host five protein amino acids (
1755: 1434:"The Loongana (CL) Group of Carbonaceous Chondrites" 1052:
Robert Hutchison: Cambridge University Press, 2006,
985:, pp. 130 ( limited preview in Google Books search). 1159: 1019:, pp. 420 ( limited preview in Google Book Search). 1002:, pp. 83 ( limited preview in Google Books search). 1823:Cronin, John R.; Pizzarello, Sandra (1997-02-14). 1207: 1205: 1203: 1201: 1199: 1060:, pp. 42 (limited preview in Google Books search). 1825:"Enantiomeric Excesses in Meteoritic Amino Acids" 1230:Nemiroff, R.; Bonnell, J., eds. (28 April 2012). 203: 3056: 1822: 1653: 799:which produces racemic mixtures of enantiomers. 374:(Italy). Most of these chondrites belong to the 250:groups, contain high percentages (3% to 22%) of 1762:Proceedings of the National Academy of Sciences 1315:"Meteoritical Bulletin: Entry for Aguas Zarcas" 1229: 1196: 1107:Proceedings of the National Academy of Sciences 875:Implications for extraterrestrial biosignatures 731: 334:Five CI chondrites have been observed to fall: 2292: 1162:Origins of Life and Evolution of the Biosphere 928: 2278: 2259:from Meteorites Australia - Meteorites.com.au 1260: 1096: 1094: 2231:Gilmour, I.; Wright, I.; Wright, J. (1997). 1612:, Dordrecht: Springer Netherlands: 209–258, 1599: 2285: 2271: 1091: 674:. A kerogen-like material is also in the 225:stands for "carbonaceous" (other types of 36: 2200: 2182: 2117: 2023: 1966: 1799: 1781: 1569: 1274: 1136: 1126: 994:Horst Rauchfuss:. Springer-Verlag, 2006, 954: 99:Some famous carbonaceous chondrites are: 1351:The Cambridge Encyclopedia of Meteorites 1075:The Cambridge Encyclopedia of Meteorites 1068: 1066: 1011:Gregor Markl: . Springer-Verlag, 2014, 801: 654: 545: 361: 207: 1342: 863:L-excesses, while alanine was racemic. 173:, contain presolar minerals, including 3057: 1700: 1348: 1072: 134: 2266: 2095: 2093: 2053: 2051: 1480: 1478: 1063: 1376:"The Meteoritical Bulletin, No. 110" 2064:Meteoritics & Planetary Science 1996:Meteoritics & Planetary Science 1947:Meteoritics & Planetary Science 891:from carbonaceous asteroids (e.g., 13: 2235:. Bletchley: The Open University. 2090: 2048: 1562:10.1016/b978-0-12-813325-5.00003-3 1554:Primitive Meteorites and Asteroids 1475: 956:10.1111/j.1945-5100.1995.tb01219.x 185:or in the vicinity of a pulsating 14: 3076: 2250: 1701:Miller, Stanley L. (1953-05-15). 1383:Meteoritics and Planetary Science 977:BĂśHLER: . Springer-Verlag, 2013, 929:Bischoff, A.; Geiger, T. (1995). 650: 147:and organic compounds, including 2076:10.1111/j.1945-5100.2012.01400.x 1959:10.1111/j.1945-5100.2010.01132.x 779:Amino acids may be structurally 2150: 1983: 1934: 1879: 1816: 1749: 1694: 1647: 1606:The Chemistry of Life's Origins 1593: 1541: 1441:Geochimica et Cosmochimica Acta 1425: 1367: 1331: 1307: 1223: 1153: 570:This group takes its name from 370:This group takes its name from 1556:, Elsevier, pp. 205–271, 1046: 1031: 1022: 1005: 988: 971: 922: 696:and other compounds including 632: 582:The group takes its name from 489:CR chondrites observed falls: 474:The group takes its name from 432:The group takes its name from 381:CV chondrites observed falls: 258:. They are composed mainly of 204:Composition and classification 16:Class of chondritic meteorites 1: 2257:Carbonaceous Chondrite Images 915: 692:has over 96 extraterrestrial 247: 243: 189:(more precisely: a so-called 1849:10.1126/science.275.5302.951 1727:10.1126/science.117.3046.528 1237:Astronomy Picture of the Day 829:α-aminoisobutyric acid (AIB) 732:Extraterrestrial amino acids 509:Other famous CR chondrites: 296:This group, named after the 7: 2223:Carbonaceous chondrites at 2119:10.1021/acs.chemrev.9b00474 1626:10.1007/978-94-011-1936-8_9 1349:Norton, O. Richard (2002). 1073:Norton, O. Richard (2002). 898: 624: 589:Famous CO chondrite falls: 577: 565: 541: 529: 469: 421: 357: 291: 10: 3081: 2923:extraterrestrial materials 1293:10.1088/0004-637X/807/1/85 910:List of meteorite minerals 425: 2999: 2958: 2863: 2838: 2812: 2768: 2714: 2643: 2615: 2570: 2522: 2513: 2419: 2382: 2304: 2233:Origins of earth and life 1461:10.1016/j.gca.2021.04.007 1232:"Sutter's Mill Meteorite" 637:The most famous members: 67: 55: 35: 26: 21: 764:) in addition to 12 non- 2702:Meteorites on Mars list 2697:Martian meteorites list 2008:2021M&PS...56..148G 1672:10.1126/science.1604320 1395:2022M&PS...57.2102G 905:Glossary of meteoritics 851:hydrothermal alteration 78:Carbonaceous chondrites 1128:10.1073/pnas.051502898 889:sample return missions 807: 793:Miller-Urey Experiment 768:amino acids including 660: 551: 367: 213: 22:Carbonaceous chondrite 2851:Nonmagmatic meteorite 1912:10.1089/ast.2010.0505 1783:10.1073/pnas.69.4.809 1263:Astrophysical Journal 1037:Addi Bischof et al.: 805: 658: 549: 365: 211: 2918:Ca–Al-rich inclusion 868:Circularly polarized 524:Northwest Africa 801 464:Winchcombe meteorite 270:, with the minerals 2184:10.3390/life9010029 2175:2019Life....9...29G 1904:2011AsBio..11..123E 1841:1997Sci...275..951C 1774:1972PNAS...69..809W 1719:1953Sci...117..528M 1666:(5062): 1445–1448. 1618:1993ASIC..416..209C 1503:1970Natur.228..923K 1453:2021GeCoA.304....1M 1285:2015ApJ...807...85P 1174:1991OLEB...21..375W 1119:2001PNAS...98.2138E 947:1995Metic..30..113B 738:development of life 659:Murchison meteorite 221:designation, where 135:General description 2016:10.1111/maps.13451 1403:10.1111/maps.13918 1217:2009-10-12 at the 1182:10.1007/BF01808308 885:structural isomers 808: 797:Strecker synthesis 661: 552: 478:(Italy). The best 368: 214: 3065:Meteorite classes 3052: 3051: 3044:Near-Earth object 3012:Atmospheric entry 2859: 2858: 2808: 2807: 2710: 2709: 2242:978-0-7492-8182-3 2112:(11): 4660–4689. 1953:(12): 1948–1972. 1835:(5302): 951–955. 1713:(3046): 528–529. 1635:978-94-011-1936-8 1581:978-0-12-813325-5 1497:(5275): 923–926. 1360:978-0-521-62143-4 1084:978-0-521-62143-4 1058:978-0-521-03539-2 1017:978-3-662-44628-7 1000:978-3-540-27666-1 983:978-3-0348-6667-5 770:α-aminoisobutyric 688:The CM meteorite 679:Martian meteorite 256:organic compounds 195:planetary systems 156:Allende meteorite 75: 74: 68:Alternative names 46:showing circular 44:Allende meteorite 3072: 2877:Characteristics 2653:Basaltic Breccia 2520: 2519: 2417: 2416: 2389: 2388: 2287: 2280: 2273: 2264: 2263: 2246: 2215: 2214: 2204: 2186: 2154: 2148: 2147: 2121: 2106:Chemical Reviews 2097: 2088: 2087: 2070:(8): 1347–1364. 2055: 2046: 2045: 2027: 1987: 1981: 1980: 1970: 1968:2060/20100032396 1938: 1932: 1931: 1883: 1877: 1876: 1820: 1814: 1813: 1803: 1785: 1753: 1747: 1746: 1698: 1692: 1691: 1651: 1645: 1644: 1643: 1642: 1597: 1591: 1590: 1589: 1588: 1573: 1571:2060/20180004493 1545: 1539: 1538: 1511:10.1038/228923a0 1482: 1473: 1472: 1438: 1429: 1423: 1422: 1389:(11): 21022105. 1380: 1371: 1365: 1364: 1346: 1340: 1335: 1329: 1328: 1326: 1325: 1319:www.lpi.usra.edu 1311: 1305: 1304: 1278: 1258: 1252: 1251: 1249: 1248: 1227: 1221: 1209: 1194: 1193: 1168:(5–6): 375–383. 1157: 1151: 1150: 1140: 1130: 1113:(5): 2138–2141. 1098: 1089: 1088: 1070: 1061: 1050: 1044: 1035: 1029: 1026: 1020: 1009: 1003: 992: 986: 975: 969: 968: 958: 926: 698:carboxylic acids 459:Jbilet Winselwan 40: 19: 18: 3080: 3079: 3075: 3074: 3073: 3071: 3070: 3069: 3055: 3054: 3053: 3048: 2995: 2954: 2867: 2855: 2834: 2804: 2764: 2706: 2680:Orthopyroxenite 2639: 2611: 2566: 2509: 2409: 2401: 2378: 2300: 2291: 2253: 2243: 2219: 2218: 2155: 2151: 2098: 2091: 2056: 2049: 1988: 1984: 1939: 1935: 1884: 1880: 1821: 1817: 1754: 1750: 1699: 1695: 1652: 1648: 1640: 1638: 1636: 1598: 1594: 1586: 1584: 1582: 1546: 1542: 1483: 1476: 1436: 1430: 1426: 1378: 1372: 1368: 1361: 1347: 1343: 1336: 1332: 1323: 1321: 1313: 1312: 1308: 1259: 1255: 1246: 1244: 1228: 1224: 1219:Wayback Machine 1210: 1197: 1158: 1154: 1099: 1092: 1085: 1071: 1064: 1051: 1047: 1036: 1032: 1027: 1023: 1010: 1006: 993: 989: 976: 972: 927: 923: 918: 901: 877: 841: 734: 653: 635: 627: 619:Dar al Gani 749 580: 568: 544: 532: 514:Dar al Gani 574 472: 430: 424: 376:petrologic type 360: 317:phyllosilicates 298:Ivuna meteorite 294: 283:from which the 206: 179:silicon carbide 137: 94:meteorite falls 84:are a class of 51: 42:A slice of the 17: 12: 11: 5: 3078: 3068: 3067: 3050: 3049: 3047: 3046: 3041: 3036: 3035: 3034: 3024: 3019: 3014: 3009: 3000: 2997: 2996: 2994: 2993: 2988: 2983: 2978: 2977: 2976: 2971: 2965:Meteorites by 2962: 2960: 2956: 2955: 2953: 2952: 2947: 2946: 2945: 2940: 2932: 2931: 2930: 2925: 2920: 2910: 2909: 2908: 2903: 2895: 2894: 2893: 2888: 2883: 2874: 2872: 2861: 2860: 2857: 2856: 2854: 2853: 2848: 2842: 2840: 2839:Obsolete terms 2836: 2835: 2833: 2832: 2827: 2822: 2816: 2814: 2810: 2809: 2806: 2805: 2803: 2802: 2801: 2800: 2795: 2790: 2780: 2774: 2772: 2766: 2765: 2763: 2762: 2757: 2754: 2751: 2748: 2745: 2740: 2735: 2732: 2729: 2724: 2720: 2718: 2712: 2711: 2708: 2707: 2705: 2704: 2699: 2694: 2689: 2688: 2687: 2677: 2672: 2667: 2662: 2661: 2660: 2649: 2647: 2641: 2640: 2638: 2637: 2632: 2627: 2625:Impact breccia 2621: 2619: 2613: 2612: 2610: 2609: 2608: 2607: 2602: 2597: 2587: 2582: 2576: 2574: 2568: 2567: 2565: 2564: 2559: 2554: 2549: 2544: 2539: 2534: 2528: 2526: 2517: 2511: 2510: 2508: 2507: 2502: 2501: 2500: 2495: 2490: 2480: 2475: 2474: 2473: 2470: 2462: 2461: 2460: 2457: 2454: 2451: 2448: 2445: 2442: 2437: 2434: 2425: 2423: 2414: 2386: 2384:Classification 2380: 2379: 2377: 2376: 2371: 2366: 2364:Micrometeorite 2361: 2356: 2355: 2354: 2344: 2343: 2342: 2337: 2332: 2327: 2317: 2311: 2309: 2302: 2301: 2290: 2289: 2282: 2275: 2267: 2261: 2260: 2252: 2251:External links 2249: 2248: 2247: 2241: 2228: 2217: 2216: 2149: 2089: 2047: 2002:(1): 148–173. 1982: 1933: 1898:(2): 123–133. 1878: 1815: 1768:(4): 809–811. 1748: 1693: 1646: 1634: 1592: 1580: 1540: 1474: 1424: 1366: 1359: 1341: 1330: 1306: 1253: 1222: 1195: 1152: 1090: 1083: 1062: 1045: 1030: 1021: 1004: 987: 970: 941:(1): 113–122. 920: 919: 917: 914: 913: 912: 907: 900: 897: 876: 873: 840: 837: 789:glyceraldehyde 733: 730: 652: 651:Organic matter 649: 648: 647: 644: 634: 631: 626: 623: 622: 621: 614:Famous finds: 612: 611: 606: 601: 596: 579: 576: 567: 564: 543: 540: 531: 528: 527: 526: 521: 516: 507: 506: 501: 496: 471: 468: 467: 466: 461: 456: 453: 448: 426:Main article: 423: 420: 419: 418: 413: 408: 403: 398: 393: 388: 359: 356: 293: 290: 205: 202: 136: 133: 73: 72: 69: 65: 64: 59: 53: 52: 41: 33: 32: 24: 23: 15: 9: 6: 4: 3: 2: 3077: 3066: 3063: 3062: 3060: 3045: 3042: 3040: 3037: 3033: 3030: 3029: 3028: 3025: 3023: 3020: 3018: 3015: 3013: 3010: 3008: 3005: 3002: 3001: 2998: 2992: 2991:Organizations 2989: 2987: 2984: 2982: 2979: 2975: 2972: 2970: 2969:find location 2967: 2966: 2964: 2963: 2961: 2957: 2951: 2948: 2944: 2943:Widmanstätten 2941: 2939: 2938:Neumann lines 2936: 2935: 2933: 2929: 2928:meteoric iron 2926: 2924: 2921: 2919: 2916: 2915: 2914: 2911: 2907: 2904: 2902: 2899: 2898: 2896: 2892: 2889: 2887: 2884: 2882: 2879: 2878: 2876: 2875: 2873: 2871: 2866: 2862: 2852: 2849: 2847: 2844: 2843: 2841: 2837: 2831: 2828: 2826: 2823: 2821: 2818: 2817: 2815: 2811: 2799: 2796: 2794: 2793:Eagle Station 2791: 2789: 2786: 2785: 2784: 2781: 2779: 2776: 2775: 2773: 2771: 2767: 2761: 2758: 2755: 2752: 2749: 2746: 2744: 2741: 2739: 2736: 2733: 2730: 2728: 2725: 2722: 2721: 2719: 2717: 2713: 2703: 2700: 2698: 2695: 2693: 2690: 2686: 2683: 2682: 2681: 2678: 2676: 2673: 2671: 2668: 2666: 2663: 2659: 2656: 2655: 2654: 2651: 2650: 2648: 2646: 2642: 2636: 2633: 2631: 2628: 2626: 2623: 2622: 2620: 2618: 2614: 2606: 2603: 2601: 2598: 2596: 2593: 2592: 2591: 2588: 2586: 2583: 2581: 2578: 2577: 2575: 2573: 2569: 2563: 2560: 2558: 2555: 2553: 2550: 2548: 2545: 2543: 2540: 2538: 2535: 2533: 2530: 2529: 2527: 2525: 2521: 2518: 2516: 2512: 2506: 2503: 2499: 2496: 2494: 2491: 2489: 2486: 2485: 2484: 2481: 2479: 2476: 2471: 2468: 2467: 2466: 2463: 2458: 2455: 2452: 2449: 2446: 2443: 2441: 2438: 2435: 2432: 2431: 2430: 2427: 2426: 2424: 2422: 2418: 2415: 2413: 2408: 2404: 2399: 2395: 2390: 2387: 2385: 2381: 2375: 2372: 2370: 2367: 2365: 2362: 2360: 2357: 2353: 2350: 2349: 2348: 2345: 2341: 2338: 2336: 2333: 2331: 2328: 2326: 2323: 2322: 2321: 2318: 2316: 2313: 2312: 2310: 2307: 2303: 2299: 2295: 2288: 2283: 2281: 2276: 2274: 2269: 2268: 2265: 2258: 2255: 2254: 2244: 2238: 2234: 2229: 2227: 2226: 2221: 2220: 2212: 2208: 2203: 2198: 2194: 2190: 2185: 2180: 2176: 2172: 2168: 2164: 2160: 2153: 2145: 2141: 2137: 2133: 2129: 2125: 2120: 2115: 2111: 2107: 2103: 2096: 2094: 2085: 2081: 2077: 2073: 2069: 2065: 2061: 2054: 2052: 2043: 2039: 2035: 2031: 2026: 2021: 2017: 2013: 2009: 2005: 2001: 1997: 1993: 1986: 1978: 1974: 1969: 1964: 1960: 1956: 1952: 1948: 1944: 1937: 1929: 1925: 1921: 1917: 1913: 1909: 1905: 1901: 1897: 1893: 1889: 1882: 1874: 1870: 1866: 1862: 1858: 1854: 1850: 1846: 1842: 1838: 1834: 1830: 1826: 1819: 1811: 1807: 1802: 1797: 1793: 1789: 1784: 1779: 1775: 1771: 1767: 1763: 1759: 1752: 1744: 1740: 1736: 1732: 1728: 1724: 1720: 1716: 1712: 1708: 1704: 1697: 1689: 1685: 1681: 1677: 1673: 1669: 1665: 1661: 1657: 1650: 1637: 1631: 1627: 1623: 1619: 1615: 1611: 1607: 1603: 1596: 1583: 1577: 1572: 1567: 1563: 1559: 1555: 1551: 1544: 1536: 1532: 1528: 1524: 1520: 1516: 1512: 1508: 1504: 1500: 1496: 1492: 1488: 1481: 1479: 1470: 1466: 1462: 1458: 1454: 1450: 1446: 1442: 1435: 1428: 1420: 1416: 1412: 1411:11568/1160522 1408: 1404: 1400: 1396: 1392: 1388: 1384: 1377: 1370: 1362: 1356: 1352: 1345: 1339: 1334: 1320: 1316: 1310: 1302: 1298: 1294: 1290: 1286: 1282: 1277: 1272: 1268: 1264: 1257: 1243: 1239: 1238: 1233: 1226: 1220: 1216: 1213: 1208: 1206: 1204: 1202: 1200: 1191: 1187: 1183: 1179: 1175: 1171: 1167: 1163: 1156: 1148: 1144: 1139: 1134: 1129: 1124: 1120: 1116: 1112: 1108: 1104: 1097: 1095: 1086: 1080: 1076: 1069: 1067: 1059: 1055: 1049: 1042: 1041: 1034: 1025: 1018: 1014: 1008: 1001: 997: 991: 984: 980: 974: 966: 962: 957: 952: 948: 944: 940: 936: 932: 925: 921: 911: 908: 906: 903: 902: 896: 894: 890: 886: 881: 872: 869: 864: 861: 860:aspartic acid 857: 852: 847: 836: 834: 830: 826: 822: 818: 814: 804: 800: 798: 794: 790: 786: 782: 777: 775: 771: 767: 766:proteinogenic 763: 762:glutamic acid 759: 755: 751: 747: 743: 739: 729: 727: 723: 719: 715: 711: 707: 703: 699: 695: 691: 686: 684: 680: 677: 673: 669: 666: 657: 645: 643: 640: 639: 638: 630: 620: 617: 616: 615: 610: 607: 605: 602: 600: 597: 595: 592: 591: 590: 587: 585: 575: 573: 563: 561: 560:mesosiderites 557: 548: 539: 537: 525: 522: 520: 517: 515: 512: 511: 510: 505: 502: 500: 497: 495: 492: 491: 490: 487: 485: 482:candidate is 481: 477: 465: 462: 460: 457: 454: 452: 451:Sutter's Mill 449: 447: 444: 443: 442: 439: 435: 429: 417: 414: 412: 409: 407: 404: 402: 399: 397: 394: 392: 389: 387: 384: 383: 382: 379: 377: 373: 366:NWA 3118, CV3 364: 355: 353: 349: 345: 341: 337: 332: 330: 326: 322: 318: 314: 310: 305: 303: 299: 289: 286: 282: 277: 273: 269: 265: 261: 257: 254:, as well as 253: 249: 245: 240: 238: 234: 233: 228: 224: 220: 210: 201: 198: 196: 192: 188: 184: 180: 176: 172: 167: 165: 161: 157: 152: 150: 146: 142: 132: 130: 126: 125:Sutter's Mill 122: 118: 114: 110: 106: 102: 97: 95: 91: 87: 83: 79: 70: 66: 63: 60: 58: 54: 49: 45: 39: 34: 31: — 30: 27:—  25: 20: 3022:Impact event 3003: 2778:Mesosiderite 2692:Shergottites 2665:Chassignites 2630:Mare basalts 2429:Carbonaceous 2428: 2340:strewn field 2232: 2224: 2166: 2162: 2152: 2109: 2105: 2067: 2063: 2025:10150/638053 1999: 1995: 1985: 1950: 1946: 1936: 1895: 1892:Astrobiology 1891: 1881: 1832: 1828: 1818: 1765: 1761: 1751: 1710: 1706: 1696: 1663: 1659: 1649: 1639:, retrieved 1609: 1605: 1595: 1585:, retrieved 1553: 1543: 1494: 1490: 1444: 1440: 1427: 1386: 1382: 1369: 1350: 1344: 1333: 1322:. Retrieved 1318: 1309: 1266: 1262: 1256: 1245:. Retrieved 1235: 1225: 1165: 1161: 1155: 1110: 1106: 1074: 1048: 1038: 1033: 1024: 1007: 990: 973: 938: 934: 924: 878: 865: 842: 809: 778: 735: 710:heterocycles 702:hydrocarbons 687: 663:Most of the 662: 636: 628: 613: 588: 581: 569: 553: 533: 519:El Djouf 001 508: 488: 473: 455:Aguas Zarcas 431: 428:CM chondrite 380: 369: 333: 306: 295: 285:Solar System 281:solar nebula 241: 236: 231: 230: 222: 218: 215: 199: 168: 164:Solar System 160:solar nebula 153: 138: 98: 82:C chondrites 81: 77: 76: 71:C chondrites 2950:CI1 fossils 2846:Amphoterite 2830:Octahedrite 2825:Hexahedrite 2532:Acapulcoite 2459:C ungrouped 2374:Parent body 2298:meteoritics 935:Meteoritics 856:Tagish Lake 827:but low in 785:enantiomers 716:compounds, 694:amino acids 642:Tagish Lake 633:C ungrouped 480:parent body 309:amino acids 149:amino acids 121:Tagish Lake 2891:weathering 2865:Mineralogy 2813:Structural 2788:Main group 2770:Stony-iron 2572:Asteroidal 2537:Brachinite 2515:Achondrite 2335:statistics 2294:Meteorites 1641:2023-05-01 1587:2023-05-01 1324:2020-08-21 1276:1505.01465 1247:2012-05-06 916:References 893:OSIRIS-REx 706:fullerenes 683:achondrite 352:Revelstoke 329:chondrules 276:serpentine 227:chondrites 175:moissanite 145:carbonates 129:Winchcombe 90:meteorites 86:chondritic 48:chondrules 3039:Meteoroid 3004:See also: 2934:Patterns 2901:chondrule 2870:petrology 2783:Pallasite 2675:Nakhlites 2605:Howardite 2595:Diogenite 2562:Winonaite 2552:Lodranite 2524:Primitive 2478:Kakangari 2465:Enstatite 2421:Chondrite 2330:impactite 2306:Meteorite 2193:2075-1729 2169:(1): 29. 2144:208185504 2128:0009-2665 2042:212671033 2034:1086-9379 1920:1531-1074 1857:0036-8075 1792:0027-8424 1735:0036-8075 1680:0036-8075 1519:1476-4687 1469:234847404 1419:253089085 1269:(1): 85. 965:0026-1114 833:isovaline 774:isovaline 772:acid and 742:Murchison 690:Murchison 604:Warrenton 556:Bencubbin 536:ALH 85085 446:Murchison 438:Murchison 321:magnetite 260:silicates 187:red giant 183:supernova 177:(natural 171:Murchison 105:Murchison 62:Chondrite 3059:Category 3007:Asteroid 2986:Journals 2913:Minerals 2906:presolar 2798:Pyroxene 2685:ALH84001 2658:NWA 7034 2557:Ureilite 2505:Rumuruti 2483:Ordinary 2412:grouplet 2315:Glossary 2211:30884807 2136:31743015 2084:52227545 1977:62883414 1928:21417942 1873:10979716 1810:16591973 1743:13056598 1447:: 1–31. 1301:93561811 1215:Archived 1190:11504324 1147:11226205 899:See also 718:alcohols 714:carbonyl 676:ALH84001 625:CL group 578:CO group 572:Karoonda 566:CK group 542:CB group 530:CH group 484:2 Pallas 470:CR group 422:CM group 416:Vigarano 401:Grosnaja 372:Vigarano 358:CV group 292:CI group 268:sulfides 191:AGB star 141:graphite 2897:Grains 2820:Ataxite 2645:Martian 2600:Eucrite 2585:Aubrite 2580:Angrite 2369:Notable 2359:Largest 2352:hunting 2202:6463258 2171:Bibcode 2004:Bibcode 1900:Bibcode 1865:9020072 1837:Bibcode 1829:Science 1770:Bibcode 1715:Bibcode 1707:Science 1688:1604320 1660:Science 1614:Bibcode 1535:4147981 1527:5482102 1499:Bibcode 1449:Bibcode 1391:Bibcode 1281:Bibcode 1170:Bibcode 1115:Bibcode 943:Bibcode 846:isotope 817:glycine 813:alanine 758:proline 750:alanine 746:glycine 672:kerogen 665:organic 599:Kainsaz 504:Renazzo 494:Al Rais 476:Renazzo 396:Bukhara 386:Allende 340:Orgueil 325:olivine 272:olivine 109:Orgueil 101:Allende 3032:shower 3027:Meteor 2981:Awards 2670:Kaidun 2325:bolide 2239:  2209:  2199:  2191:  2142:  2134:  2126:  2082:  2040:  2032:  1975:  1926:  1918:  1871:  1863:  1855:  1808:  1801:426569 1798:  1790:  1741:  1733:  1686:  1678:  1632:  1578:  1533:  1525:  1517:  1491:Nature 1467:  1417:  1357:  1299:  1188:  1145:  1135:  1081:  1056:  1015:  998:  981:  963:  858:has L- 823:, and 781:chiral 760:, and 754:valine 726:amides 722:amines 668:carbon 594:Ornans 584:Ornans 499:Kaidun 434:Mighei 411:Mokoia 350:, and 323:, and 264:oxides 117:Murray 3017:Comet 2959:Lists 2881:shock 2747:IIIAB 2617:Lunar 2547:IIICD 2407:group 2398:class 2140:S2CID 2080:S2CID 2038:S2CID 1973:S2CID 1869:S2CID 1531:S2CID 1465:S2CID 1437:(PDF) 1415:S2CID 1379:(PDF) 1297:S2CID 1271:arXiv 1186:S2CID 1138:30105 825:β-ABA 646:Tarda 344:Alais 336:Ivuna 252:water 113:Ivuna 29:Class 2974:type 2868:and 2753:IIIF 2750:IIIE 2727:IIAB 2716:Iron 2635:List 2410:and 2403:clan 2394:type 2347:Find 2320:Fall 2296:and 2237:ISBN 2207:PMID 2189:ISSN 2163:Life 2132:PMID 2124:ISSN 2030:ISSN 1924:PMID 1916:ISSN 1861:PMID 1853:ISSN 1806:PMID 1788:ISSN 1739:PMID 1731:ISSN 1684:PMID 1676:ISSN 1630:ISBN 1576:ISBN 1523:PMID 1515:ISSN 1355:ISBN 1242:NASA 1143:PMID 1079:ISBN 1054:ISBN 1013:ISBN 996:ISBN 979:ISBN 961:ISSN 880:NASA 831:and 819:, Îł- 724:and 681:(an 609:Moss 406:Kaba 391:Bali 348:Tonk 313:PAHs 311:and 274:and 266:and 246:and 127:and 57:Type 2886:TKW 2760:IVB 2756:IVA 2743:IIG 2738:IIE 2734:IID 2731:IIC 2590:HED 2542:IAB 2392:By 2308:... 2197:PMC 2179:doi 2114:doi 2110:120 2072:doi 2020:hdl 2012:doi 1963:hdl 1955:doi 1908:doi 1845:doi 1833:275 1796:PMC 1778:doi 1723:doi 1711:117 1668:doi 1664:256 1622:doi 1610:416 1566:hdl 1558:doi 1507:doi 1495:228 1457:doi 1445:304 1407:hdl 1399:doi 1289:doi 1267:807 1178:doi 1133:PMC 1123:doi 951:doi 821:ABA 685:). 378:3. 80:or 3061:: 2723:IC 2498:LL 2472:EL 2469:EH 2456:CV 2453:CR 2450:CO 2447:CM 2444:CK 2440:CI 2436:CH 2433:CB 2405:, 2396:, 2205:. 2195:. 2187:. 2177:. 2165:. 2161:. 2138:. 2130:. 2122:. 2108:. 2104:. 2092:^ 2078:. 2068:47 2066:. 2062:. 2050:^ 2036:. 2028:. 2018:. 2010:. 2000:56 1998:. 1994:. 1971:. 1961:. 1951:45 1949:. 1945:. 1922:. 1914:. 1906:. 1896:11 1894:. 1890:. 1867:. 1859:. 1851:. 1843:. 1831:. 1827:. 1804:. 1794:. 1786:. 1776:. 1766:69 1764:. 1760:. 1737:. 1729:. 1721:. 1709:. 1705:. 1682:. 1674:. 1662:. 1658:. 1628:, 1620:, 1608:, 1604:, 1574:, 1564:, 1552:, 1529:. 1521:. 1513:. 1505:. 1493:. 1489:. 1477:^ 1463:. 1455:. 1443:. 1439:. 1413:. 1405:. 1397:. 1387:57 1385:. 1381:. 1317:. 1295:. 1287:. 1279:. 1265:. 1240:. 1234:. 1198:^ 1184:. 1176:. 1166:21 1164:. 1141:. 1131:. 1121:. 1111:98 1109:. 1105:. 1093:^ 1065:^ 959:. 949:. 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Index

Class

Allende meteorite
chondrules
Type
Chondrite
chondritic
meteorites
meteorite falls
Allende
Murchison
Orgueil
Ivuna
Murray
Tagish Lake
Sutter's Mill
Winchcombe
graphite
carbonates
amino acids
Allende meteorite
solar nebula
Solar System
Murchison
moissanite
silicon carbide
supernova
red giant
AGB star
planetary systems

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