rhyolitic
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The results show that the behavior of hydrogen isotope fractionation in the albitic melt- water system cannot be analogously applied to that in the rhyolitic melt- water system except at particular...
本文拟合的硅酸盐熔体-水体系氢同位素分馏等值线在 P- T空间的形态变化特征与矿物-水体系存在较大差异。
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Volcanic rocks, characterized by huge phenocryst, multi-phenocryst, clastic phenocryst and corrosive phenocryst, developed with surging rhyolitic, plastic agglomerate and pseudo accumulation structure, showing intrusive contact with big phenocryst granite batholith and granite porphyry vein, demonstrates its plutonic attribution.
以大斑、多斑、富碎斑和熔蚀斑为特征,发育涌动流纹、塑性集块和假堆积等构造,并与时差很小的大斑花岗岩基、大斑花岗斑岩脉呈侵入接触关系的非层状火山岩,预示其成因为深成端元属性。
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The geochemical characteristic of rhyolitic rocks is also similar to that of rhyolite in the bimodal volcanics of the typical back-arc basin.
流纹质岩石地球化学特征也与典型弧后盆地双峰式火山岩中的流纹岩相似。
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Experimental data for hydrogen isotope fractionations between albitic, K- feldspar, and rhyolitic melts and water vary systematically with pressure from 0.2 to 2 000 MPa.
对 0.2~ 2 000 MPa条件下钠长石熔体、钾长石熔体以及 0.2~ 150 MPa条件下流纹岩熔体-水体系的氢同位素分馏实验数据进行了等压拟合,发现硅酸盐熔体与水之间的氢同位素分馏存在显著的压力效应。
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On the basis of an integrated analysis of the geochemical features of these volcanic rock associations,this paper concludes that thebasalts originated mainly from interaction between mantle-derived magma and low-crustal materials, and rhyolitic volcanic rocks resulted from thermal and chemical interaction between basaltic magma and the upper part of crustal materials.Basalts and rhyolites in different cycles have different source regions,and they are products of multiperiodic pulsive layer partial melting.
根据对火山岩地球化学特征的综合分析表明,玄武岩主要为幔源岩浆与下部地壳岩石相互作用的产物,而流纹岩则为玄武岩浆与上部地壳物质进行热及成分交换的结果,不同旋回的玄武岩和流纹岩有不同的源区,为多次脉动分层部分熔融的产物。
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rhyolitic:流纹质
流纹岩 rhyolite | 流纹质 rhyolitic | 流星 meteor
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rhyolitic:流纹岩的
"流纹岩","rhyolith" | "流纹岩的","rhyolitic" | "流纹状","rhyotaxitic"
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rhyolitic lava:流纹熔岩
rhyolite-porphyry 流纹斑岩 | rhyolitic lava 流纹熔岩 | rhyolitic tuff 流纹岩质凝灰岩
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rhyolitic tuff:流纹岩质凝灰岩
rhyolitic lava 流纹熔岩 | rhyolitic tuff 流纹岩质凝灰岩 | rhyotaxitic 流纹状
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rhyolitic structure:疗构造
rhyolite 疗岩 | rhyolitic structure 疗构造 | rias coast 里亚式海岸
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