Oxygen Isotopes in Isolated Chondrules from the Tieschitz Ordinary Chondrite: Initial Compositions and Differential Parent Body Alteration

Carbonatites are igneous rocks formed in the crust by fractional crystallization of carbonate-rich parental melts that are mostly mantle derived. They dominantly consist of carbonate minerals such as calcite, dolomite, and ankerite, as well as minor ...Read More

10.1146/annurev.ea.21.050193.000555

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Citations (619)

Isotopic Composition of Oxygen in the Elenovka L5 Chondrite Chondrules

Lunar and Planetary Science Conference (1991)

А. К. Лаврухина V. I. Ustinov G. V. Baryshnikova Yu. A. Shukolyukov

Chondrule

Carbonaceous chondrite

Ordinary chondrite

Compositional data

Source

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Citations (0)

Matrix and chondrule rims in the Tieschitz (H3.6) chondrite.

T. Noguchi

Chondrule

Source

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Distribution of the pre-solar component in Allende and other carbonaceous chondrites

Earth and Planetary Science Letters (1977)

Robert N. Clayton Naoki Onuma Lawrence Grossman T. K. Mayeda

Allende meteorite

Pyroxene

Chondrule

Carbonaceous chondrite

Melilite

Murchison meteorite

Grossular

Presolar grains

Parent body

Silicate minerals

10.1016/0012-821x(77)90005-x

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Citations (449)

Oxygen-Isotope Compositions of Chondrules and Matrix Grains in Kakangari Chondrite

M&PSA (2011)

K. Nagashima A. N. Krot G. R. Huss

Chondrule

Carbonaceous chondrite

Ordinary chondrite

Matrix (chemical analysis)

Achondrite

Source

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Citations (3)

Oxygen isotope studies of ordinary chondrites

Geochimica et Cosmochimica Acta (1991)

Robert N. Clayton T. K. Mayeda J. N. Goswami Edward J. Olsen

Chondrule

Achondrite

Enstatite

Parent body

Breccia

Allende meteorite

Regolith

10.1016/0016-7037(91)90107-g

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Citations (465)

Oxygen isotopic relationships between the LEW85332 carbonaceous chondrite and CR chondrites

Lunar and Planetary Inst., Twenty-Fourth Lunar and Planetary Science Conference. Part 3: N-Z (1993)

M. Prinz M. K. Weisberg R. N. Clayton T. K. Mayeda

LEW85332, originally described as a unique C3 chondrite, was shown to be a C2 chondrite with important linkages to the CR clan. An important petrologic aspect of LEW85332 is that it contains anhydrous chondrules and hydrated matrix, and new oxygen isotopic data on chondrules, matrix and whole rock are consistent with the petrology. Chondrules fall on the equilibrated chondrite line (ECL), with a slope near 1, which goes through ordinary chondrite chondrules. This contrasts with the CR chondrule line which has a lower slope due to hydrated components. LEW85332 chondrules define a new carbonaceous chondrite chondrule line, parallel to the anhydrous CV chondrule line (CCC), consistent with the well-established concept of two oxygen isotopic reservoirs. Matrix and whole rock fall on the CR line. The whole rock composition indicates that the chondrite is dominated by chondrules, and that most of them contain light oxygen similar to that of anhydrous olivine and pyroxene separates in the Renazzo and Al Rais CR chondrites.

Chondrule

Carbonaceous chondrite

Ordinary chondrite

Source

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Evidence for Oxygen-Isotope Exchange in Chondrules and Refractory Inclusions During Fluid-Rock Interaction on the CV Chondrite Parent Body

LPICo (2016)

A. N. Krot K. Nagashima

Chondrule

Refractory (planetary science)

Carbonaceous chondrite