The unequilibrated enstatite chondrites

MK Weisberg, M Kimura - Geochemistry, 2012 - Elsevier
The enstatite chondrites formed under highly reducing (and/or sulfidizing) conditions as
indicated by their mineral assemblages and compositions, which are sharply different from …

Chondrules in the Qingzhen type-3 enstatite chondrite: Possible precursor components and comparison to ordinary chondrite chondrules

JN Grossman, AE Rubin, ER Rambaldi… - … et Cosmochimica Acta, 1985 - Elsevier
The Qingzhen (EH3) fall appears to be the least equilibrated enstatite chondrite; mineral
compositions vary widely from chondrule to chondrule, and in some cases, from grain to …

Compositional continuity of enstatite chondrites and implications for heterogeneous accretion of the enstatite chondrite parent body

P Kong, T Mori, M Ebihara - Geochimica et Cosmochimica Acta, 1997 - Elsevier
Chemical compositions of eleven enstatite chondrites (1 EH5, 4 EH3, 3 EL3, I EL5, and 2
EL6) and their metal and nonmagnetic fractions determined by instrumental neutron …

The compositional classification of chondrites: VII. The R chondrite group

GW Kallemeyn, AE Rubin, JT Wasson - Geochimica et Cosmochimica Acta, 1996 - Elsevier
Bulk compositional and petrographic data clearly define the new R (Rumuruti) group of
chondrites consisting of Rumuruti (the only fall), ALH85151, Acfer 217, Carlisle Lakes, Dar al …

Petrology and oxygen isotope compositions of chondrules in E3 chondrites

MK Weisberg, DS Ebel, HC Connolly Jr, NT Kita… - … et Cosmochimica Acta, 2011 - Elsevier
Chondrules in E3 chondrites differ from those in other chondrite groups. Many contain near-
pure endmember enstatite (Fs< 1). Some contain Si-bearing FeNi metal, Cr-bearing troilite …

Chondrules in the CB/CH-like carbonaceous chondrite Isheyevo: Evidence for various chondrule-forming mechanisms and multiple chondrule generations

AN Krot, MA Ivanova, AA Ulyanov - Geochemistry, 2007 - Elsevier
The recently discovered metal-rich carbonaceous chondrite Isheyevo consists of Fe, Ni-
metal grains, chondrules, heavily hydrated matrix lumps and rare refractory inclusions. It …

The formation conditions of enstatite chondrites: Insights from trace element geochemistry of olivine‐bearing chondrules in Sahara 97096 (EH 3)

E Jacquet, O Alard, M Gounelle - Meteoritics & Planetary …, 2015 - Wiley Online Library
We report in situ LA‐ICP‐MS trace element analyses of silicate phases in olivine‐bearing
chondrules in the Sahara 97096 (EH 3) enstatite chondrite. Most olivine and enstatite …

Mineral chemistry and the origin of enstatite in unequilibrated enstatite chondrites

W Hsu, G Crozaz - Geochimica et Cosmochimica Acta, 1998 - Elsevier
A comprehensive study of the petrography, cathodoluminescence (CL), rare earth element
(REE) abundances, and magnesium and silicon isotopic compositions of enstatite, the major …

Compositions of enstatite (EH3, EH4, 5 and EL6) chondrites: Implications regarding their formation

GW Kallemeyn, JT Wasson - Geochimica et Cosmochimica Acta, 1986 - Elsevier
We report concentrations of 30 elements in 34 replicate samples of 17 enstatite chondrites,
including 8 EH3 chondrites. Unweathered EH3 and EH4, 5 chondrites appear to be …

Formation of niningerite by silicate sulfidation in EH3 enstatite chondrites

SW Lehner, MI Petaev, MY Zolotov… - … et Cosmochimica Acta, 2013 - Elsevier
Unequilibrated EH chondrites contain silica-bearing chondrules with abundant niningerite
[(Mg, Fe, Mn) S] and troilite (FeS), distinguishing them from the silica-bearing chondrules in …