Astronomy: General

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aubrite

A Dictionary of Astronomy | 1997 | Copyright

aubrite A class of calcium-poor achondrite meteorite; also known as enstatite achondrites. Aubrites consist almost entirely of the silicate mineral enstatite. They resemble the enstatite chondrites, to which they are probably related. Aubrites have large grain sizes (sometimes exceeding several centimetres), which suggests that they formed within cooling magmas; alternatively, they may have originated through processes occurring in the solar nebula. Almost all known aubrites are *breccias. They are named after a meteorite that fell at Aubres, France, on 1836September14.

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aubrite

A Dictionary of Earth Sciences | 1999 | | Copyright

aubrite An enstatite pyroxene-rich, achondritic meteorite that is poor in calcium. The enstatite, which often forms large crystals, has very low FeO/(FeO + MgO) ratios, Aubrites may contain up to 1.2% elemental silicon included within rare Fe–Ni grains, and appear to have close affinities with the similarly highly reduced enstatite chondrites.

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AILSA ALLABY and MICHAEL ALLABY. "aubrite." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "aubrite." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O13-aubrite.html

AILSA ALLABY and MICHAEL ALLABY. "aubrite." A Dictionary of Earth Sciences. 1999. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-aubrite.html

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