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Wehrlite

From Wikipedia, the free encyclopedia
Ultramafic rock
For the Bi2Te3 mineral, seeTellurobismuthite.
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Wehrlite is a mixture of olivine and clinopyroxene.
Photomicrograph of athin section of wehrlite, in cross-polarised light

Wehrlite is anultramafic and ultrabasic rock that is a mixture ofolivine andclinopyroxene. It is a subdivision of theperidotites.

The nomenclature allows up to a few percent oforthopyroxene. Accessory minerals includeilmenite,chromite,magnetite and an aluminium-bearing mineral (plagioclase,spinel orgarnet).[1]

Wehrlites occur as mantlexenoliths and inophiolites. Another occurrence is as cumulate ingabbro andnoritelayered intrusions.[1] Some meteorites can also be classified as wehrlites (e.g.NWA 4797).[2]

Wehrlite is named afterAlois Wehrle.[3] He was born 1791 inKroměříž,Czech Republic (then Kremsier in Mähren) and was a professor at the "Ungarische Bergakademie" (Hungarian Mining School) inBanská Štiavnica,Slovakia (then Schemnitz,Kingdom of Hungary).[4]

References

[edit]
  1. ^ab"Glossary: Wehrlite". Imperial College. Retrieved12 January 2013.
  2. ^"NWA 4797"(PDF). curator.jsc.nasa.gov. Retrieved12 January 2013.
  3. ^"Department of Mineralogy and Petrography". uni-miskolc.hu. Retrieved12 January 2013.
  4. ^"ADB:Wehrle, Alois". WikiSource. Retrieved12 January 2013.
Types of rocks
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Metamorphic rock
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