| 单词 | protolith |
| 释义 | BETA Examples ofprotolithDictionary> Examples ofprotolith protolithisn’t in the Cambridge Dictionary yet. You can help! Add a definition The orthogneisses are the mainprotolithof the mylonites. From theCambridge English Corpus The resulting 2 standard deviation thresholds plotted give a measure of the variation inherent for each element in that interval in theprotolith. From theCambridge English Corpus Ages of primary, magmatic or metamorphic, crystallization andprotolithages (inherited zircon cores/crystals) are thus obtained routinely. From theCambridge English Corpus All these characteristics would be expected for partial melts of an enrichedprotolithat relatively high pressures. From theCambridge English Corpus A few apparent cores also were targeted as possibly representing inheritance from an olderprotolith. From theCambridge English Corpus An alternative explanation is that these contrasts could be due to localprotolithvariation. From theCambridge English Corpus However, there are significant differences inprotolithand in age of metamorphism. From theCambridge English Corpus The values concerned were exceptional, lying well outside the ranges of the lower gradeprotolith, and were considered not to be due to metasomatic effects. From theCambridge English Corpus Although model ages are notoriously unreliable indicators ofprotolithcrystallization, there are several reasons for optimism in this particular case. From theCambridge English Corpus The plagioclase laths are believed to represent relict plagioclase phenocrysts in the volcanicprotolith. From theCambridge English Corpus These lithologies do not form part of theprotolithclassification data suite. From theCambridge English Corpus The swarm is thought to have been emplaced penecontemporaneously with the granite sheets that formed the igneousprotolithof the gneiss. From theCambridge English Corpus The restitic quartz grains are smaller, more rounded in shape, and less abundant, possibly due to the finer-grainedprotolith. From theCambridge English Corpus We use trace element geochemistry to constrain theprotolithsource of the amphibolites. From theCambridge English Corpus Theprotolithof the amphibolite is likely to be basalt and/or gabbro. From theCambridge English Corpus Localprotolithvariation is another possible explanation. 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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