A SYSTEMATIC CLASSIFICATION OF METEORITES
PART I

EL GROUP

EL3 (e.g. MAC 88136 and pairings, PCA 91020, QUE 93351, Kaidun IV, NWA 3132, NWA 2965 and pairings [3/6])

EL4 (e.g. QUE 94368, DaG 734, HaH 317, Grein 002 [4/5], DaG 1031, FRO 03005)

EL5 (e.g. Tanezrouft 031, TIL 91714, NWA 1222, Adrar Bous)

EL6 (e.g. LEW 87119, Pillistfer [EL6β], Eagle, Forrest 033, Yilmia [EL6β], Atlanta, Hvittis

EL(7/impact melt phase) (e.g. Ilafegh 009 [7/MR], Happy Canyon [IMR], Y-980524 [IMB])

E TRANSITIONAL

EH/L (only Y-793225 [EH6-An; Rubin and Wasson, 2011)

EH GROUP

EH3 (e.g. Sah 97096 [EH3.1–3.4α,β], Qingzhen, MAC 88136 [3.8/3.9], Galim (b) [An], Hadley Rille [IM])

EH4 (e.g. Indarch [EH4β,γ], Bethune)

EH5 (e.g. QUE 93372, St. Mark's, LEW 88180, Saint-Sauveur [EH5γ], Kaidun-III)

EH6 (unknown)

EH7 (e.g. Itqiy [An/Prim Achon])

EH impact melt phase (e.g. Y-8404 and pairings [MR], Adhi Kot [IMB], Abee [IMB], Y-8404 [IMB], Y-980211 [IMB], Y-980223 [IMB])

UNGROUPED E CHONDRITES

E-ung (e.g. NWA 305 [3], NWA 974 [6], QUE 94204 [Prim Achon], NWA 2526 [Prim Achon], Y-793225 [IMR/Prim Achon])

LL GROUP

LL3.00–3.9 (e.g. Semarkona [3.01], MET 00526 [3.05], NWA 1756 [3.10], NWA 3127 [3.10, metal-poor], NWA 4290 [3.10], Bishunpur [3.15], Y-74660 [3.15], Krymka [3.2], Wells [3.3], Ragland [3.4], NWA 539 [3.5], NWA 094 [3.6], Parnallee [3.7], DaG 054 [3.8], DaG 180 [3.9])

LL4 (e.g. DaG 298, Soko Banja, Greenwell Springs)

LL5 (e.g. Paragould, Tuxtuac, NWA 1584, DaG 222 [5–6])

LL6 (e.g. Beeler, Ensisheim, NWA 2092 [6/7])

LL7(e.g. Uden, Crocker's Well, Sah 97037, Dho 011, Dho 014, NWA 503, DaG 1022, NWA 3100)

LL impact melt phase (e.g. Bison [IMB], Y-74160, NWA 1701 [IMB])

TRANSITIONAL L/LL GROUP

L/LL3 (e.g. Esperance, Inman [3.4], NWA 487 [<3.5], SaU 089 [3.6/3.7], NWA 4020 [3])

L/LL4 (e.g. Seemore Downs, Bjurböle, Cynthiana)

L/LL5 (e.g. Qidong, Knyahinya, Sah 97021 [5/6])

L/LL6 (e.g. Acfer 041, Naryilco, Holbrook)

L GROUP

L3.0–3.9 (e.g. LEW 86134 [3.0], JaH 026 [3.1], NWA 762 [3.2], Dho 008 [3.2/3.3], ALH 83010 [3.3], EET 96015 [3.4], Felt (b) [3.5], MET 96503 [3.6], NWA 092 [3.7], NWA 711 [3.8], Sah 97193 [3.9])

L4 (e.g. Bluff (b), Okechobee)

L5 (e.g. Beenham, Mt. Tazerzait [an], Park Forest)

L6 (e.g. Bruderheim, Brewster, Seagraves (c) [6/7])

L7 (e.g. Forrest 028, FRO 90058 and pairings, LEW 88663, Dho 1275)

L impact melt phase (e.g. Shaw, Cat Mountain [IMB], NWA 722, PAT 91501, NWA 2085, NWA 4150 [IMR])

TRANSITIONAL H/L GROUP

H/L3 (e.g. Tieschitz [3.6], Bremervörde [3.7], NWA 1955 [3–4])

H/L4 (e.g. Haxtun)

H/L5 (e.g. Dhofar 428, NWA 3330, LAP 031047 [27% porosity])

H/L6 (e.g. DaG 591, NWA 4152 and pairings, SaU 324)

H GROUP

H3.0–3.9 (e.g. Roosevelt Co. 075 [3.1], ERO 93050 [3.2], WSG 95300 [3.3], DaG 475 [3.4], LEW 88315 [3.5], Clovis no.1 [3.6], Grady (1937) [3.7], Lost Creek [3.8], DaG 225 [3.9], Abbott [3–6])

H4 (e.g. Eustis, Correo, Selma)

H5 (e.g. Bonita Springs, Monahans (1998), Juancheng, Sah 98034, NWA 2488)

H6 (e.g. Peekskill)

H7 (e.g. ALH 88119, Y-75008, Y-790120, Y-790960, NWA 2898)

H impact melt phase (e.g. Gao-Guenie [IMB], Smyer [IMB], Dho 010 [IMB], Portales Valley [IMB], GSS 020 [MR], NWA 2058 [MR], DaG 896 [IM])

UNGROUPED "ORDINARY" CHONDRITES

Low-FeO (e.g. Moorabie [3.8], Wray (a), Beni Semguine, Cerro los Calvos, Suwahib (Buwah), Willaroy, Burnwell [H], LAP 04757 [H], EET 96031 [H], MIL 07273 [H])

Metal-poor (e.g. NWA 960 [L3], NWA 4486 [L3], NWA 2040 [L3.1], NWA 2041 [L3], NWA 3114 [L3.8], NWA 3127 [LL3.10], NWA 3157 [L3], NWA 4294 [LL3], NWA 4298 [LL3], NWA 4486 [L3], NWA 4531 [LL3], NWA 5717 [L+LL3.05])

Others (e.g. (HaH 180 [3.5], NWA 5717 [3.05–3.1], GRV 020043, NWA 5492 [metal-rich, EC/LL])

R3 (e.g. DaG 013 [3.5–6], NWA 755 [3.7], Carlisle Lakes [3.8], NWA 978 [3.8], Acfer 217 [3.8–5], Rumuruti [3.8–6], NWA 753 [3.9])

R4 (e.g. HaH 119, NWA 053, NWA 1906)

R5 (e.g. NWA 1585, NWA 1668, LAP 031275)

R6 (LAP 04840, NWA 5299)

CR1 (only GRO 95577; a revised hydrothermal alteration sequence (CM2.0–CM3.0) is proposed by Harju, Rubin, and Wasson, 2011)

CR2 (e.g. Al Rais, Renazzo, A-881595, Acfer 059/El Djouf 001 pairings, Temple Bar, NWA 1177, NWA 1567, NWA 3105, NWA 6043)

CR3 (e.g., Acfer 324, QUE 99177 [3.00], MET 00426 [3.00])

CR6 (e.g., NWA 3100, NWA 2994)

CBa (e.g. Bencubbin, Weatherford, Gujba, NWA 1814, Fountain Hills, NWA 4025)

CBb (e.g. HaH 237, QUE 94411, MAC 02675, QUE 94411, Isheyevo)

CH (e.g. ALH 85085, Acfer 182 and pairings, NWA 470, NWA 739, NWA 770, PAT 91546, EET 96238, PCA 91467, RKP 92435, SaU 290, NWA 2210, Acfer 366, NWA 4781)

CR Clan-Related (e.g. LEW 85332 [C3.0–3.1 w/ C1,2 clasts], Tucson, Kaidun [containing a mélange of CR-, CI-, CM-, CV-, Meta-C-, O-, EH-, EL-, and aubrite-like clasts], possibly NWA 011/2400 and pairings, and others see Meta-CR members below)

CV2 (e.g. Mundrabilla 012, MIL 090001, clast in Mokoia)

CVR (Reduced subgroup e.g. Leoville [3.0], Arch [3.0], Efremovka [3.2], Vigarano [3.3], DaG 055 [An], MET 01017 [3.7])

CVoxA (Oxidized-Allende subgroup e.g. Axtell [3.0], Allende [3.2], NWA 1763 [3.5])

CVoxB (Oxidized-Bali subgroup e.g. Kaba [3.0], Bali [3.0], Grosnaja [3.0], Mokoia [3.3])

CK3 or CVoxK (e.g. Camel Donga 003, Watson 002, Dho 015, NWA 772, NWA 1694, NWA 1559)

CK4 or CV4oxK (e.g. Karoonda, NWA 521, NWA 735, Maralinga, HaH 280/281, Kobe)

CK5 or CV5oxK (e.g. EET 87507 and pairings, DaG 412, NWA 060, NWA 1563, NWA 1907)

CK6 or CV6oxK (e.g. LEW 87009, NWA 2388)

CM1 see revised hydrothermal alteration sequence (CM2.0–CM2.8) below (after Rubin et al., 2005, 2007; Blanchard et al., 2011):

CM2 (e.g. NWA 4765 [2.0; =CM1], MET 01070 [2.0; =CM1], EET 83334 [2.0; =CM1], LAP 02277 [2.0; =CM1], ALH 84034 [2.0; =CM1], Moapa Valley [2.0; =CM1], clasts in Kaidun [2.0; =CM1], QUE 93005 [2.1], ALH 83100 [2.1], Cold Bokkeveld [2.2], Nogoya [2.2], QUE 99355 [2.3], TIL 08007 [2.3], Y-791198 [2.4], Murray [2.4/2.5], Murchison [2.5], Kivesvaara [2.5], QUE 97990 [2.6], Paris [2.7/2.8 A/B]) not yet classified by aqueous alteration subtype (e.g. Dho 225 [an ung; meta], Dho 735 [an ung; meta], Boriskino, Sayama [ox])

CM3 (tentative, Acfer 094 [3.00], WIS 91600 [3.0], Belgica 7904 [3.1; Belgica grpt], Yamato 86720 [Belgica grpt], EET 90043)

CO3 after Bonal et al. (2007) (e.g. ALHA77307 [3.03], Y-81020 [3.05], LAP 031117 [3.06–3.09], Colony [3.1], NWA 2918 [3.1], NWA 2974 [3.1], DaG 005 and pairings [3.1], Kainsaz [3.6], Moss [3.6], Felix [3.6+], Ornans [3.6+], Lancé [3.6+], Warrenton [3.7/+], Isna [3.7/+], NWA 1232)

CI1 (e.g. Ivuna, Orgueil, Alais, Yamato 82162 [meta])

C4 (Coolidge [4] and Loongana 001 duo [possibly including Sah 00182 and HaH 073, and perhaps NWA 779 and Sah 00177])

C-ung (e.g. Tagish Lake [C2], Ningqiang [C3.3], NWA 033 [C3], DaG 430 [C3], NWA 994 [C3], NWA 978 [C3], Sah 00182 [C3], Mulga (west) [C5/6], Adelaide, Bench Crater, NWA 5958 [C3.00])

K3 (proposed grouplet of Kakangari [3.6] and LEW 87232)

Meta-LL (e.g. NWA 5297)

Meta-L (e.g. NWA 6348)

Meta-H (e.g. NWA 2353, NWA 2635)

Meta-CR (e.g. Tafassasset, NWA 5131)

Meta-CO (e.g. NWA 1839)

Meta-CV (e.g. NWA 3133 and pairings)

© 1997–2011 by David Weir