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单词 oligoclase
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Examples ofoligoclase

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In the foliated gabbro, andesine also predominates, but with minoroligoclase.
From theCambridge English Corpus
This growth of pargasite andoligoclaseindicates further retrogression to upper amphibolite facies conditions following the high-pressure granulite facies overprint.
From theCambridge English Corpus
Plagioclase is labradorite (phenocryst) andoligoclase(matrix) and has been variably sericitized.
From theCambridge English Corpus
Plagioclase isoligoclase/andesine and aligned biotite and hornblende define the strong foliation.
From theCambridge English Corpus
Plagioclase is mainly andesine in composition but varies from labradorite tooligoclase.
From theCambridge English Corpus
Citlaltépetl lavas are mostly composed of two pyroxenes, hornblende andoligoclase-andesine phenocrysts in a microlitic and sometimes glassy groundmass.
From theCambridge English Corpus
The relict porphyroblasts are surrounded by small garnet neoblasts that extend into and define the foliation, which are in contact with pargasite,oligoclase, titanite and occasionally small relict diopside grains.
From theCambridge English Corpus
Staurolite is absent, muscovite occurs as traces,oligoclaseis not zoned.
From theCambridge English Corpus
Plagioclase isoligoclaseand is generally sericitized.
From theCambridge English Corpus
Oligoclaseis a high sodium feldspar crystallizing in the triclinic system.
From
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They are commonlyoligoclase, and sometimes assume branching or feathery forms.
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The plagioclase is typically intermediate to sodic in composition, andesine tooligoclase.
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Feldspar is present as plagioclase (typicallyoligoclaseor andesine) with 10% or less alkali feldspar.
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The plagioclase feldsparoligoclasealso produces moonstone specimens.
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Wikipedia
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These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.

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更新时间:2025/2/10 23:15:35