| 单词 | feldspar |
| 释义 | feldspar noun[CorU] geologyspecializeduk/ˈfeld.spɑːr/us/ˈfeld.spɑːr/acommontypeofmineralfoundespeciallyinigneousrockssuch asgranite 长石（一种常见矿石，尤见于火成岩，例如花岗岩中）Geology: types of rock
Examplesoffeldsparfeldspar This is conspicuous for biotite and amphibole crystals but less so in the strongly alteredfeldsparcrystals. From theCambridge English Corpus In these first five zones, some crystals, mainly feldspars, are visible in hand specimen. From theCambridge English Corpus The presence of quartz-filled microcracks infeldsparcrystals suggests that deformation continued during cooling and crystallization. From theCambridge English Corpus Such spidergrams strongly suggest that these metafelsites solidified from highly fractionated melts, which underwent extensive, low pressure, accessory phases- andfeldspar-dominated crystal fractionation. From theCambridge English Corpus It is a medium-grained, foliated orthogneiss with smallfeldspar'augen'. From theCambridge English Corpus Somefeldspargrains, however, show weakly developed asymmetric strain shadows (-type). From theCambridge English Corpus The magnetic fraction of the surface sand contains pyroxene andfeldspargrains as in the bulk material, but little quartz. From theCambridge English Corpus The two planes intersect along cd which is the locus of liquids in equilibrium with a silica polymorph + two feldspars + aqueous fluid. From theCambridge English Corpus The matrix is composed of finegrained recrystallizedfeldspar. From theCambridge English Corpus Feldsparporphyroclasts have been rotated during shearing and folding. From theCambridge English Corpus 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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