| 单词 | paragenetic |
| 释义 | paragenetic, a.|pærədʒɪˈnɛtɪk|
[f. Gr. παρα- (see prec.) + γενετικός (see genetic).]
a. Biol. Pertaining to or originating by paragenesis; paragenesic.
b. Min. Originating side by side, as in paragenetic twin (crystal): see quot. 1883.
1865Page Handbk. Geol. Terms 350 The innate structures of granite, marble, loaf-sugar, and the like, are instances of paragenetic crystallisation. 1883M. F. Heddle in Encycl. Brit. XVI. 367/1 Twins [crystals] have..been divided into ‘paragenetic’ and ‘metagenetic’. The first term is applied to the ordinarily occurring twins, in which the compound structure is supposed..to have been compound in its very origin.
c. Min. Involving or pertaining to paragenesis (sense 2). Hence parageˈnetically adv.
1853Edin. New Philos. Jrnl. LIV. 325 The paragenetic phenomena met with in druses..indicates that the deposition of some more recent minerals has taken place more readily upon certain of the pre-existing minerals than upon others. 1963Mineral. Abstr. XVI. 166/1 Paragenetically, pitchblende is associated with calcite, quartz, [etc.]. 1966E. W. Heinrich Geol. of Carbonatites vii. 182 All the other sulfides..are not only uncommon to very rare but, unlike most of the pyrite, are usually paragenetically late. 1974Nature 15 Mar. 261/2 Miyashiro distinguishes, somewhat anomalously, some subfacies on the basis of facies series, even though paragenetic criteria may not be available. |
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