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首页> 外文期刊>Journal of Volcanology and Geothermal Research >Observing silicic magma transport in dykes at depths of 8-19 km: Evidences from crustal xenoliths and numerical modelling
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Observing silicic magma transport in dykes at depths of 8-19 km: Evidences from crustal xenoliths and numerical modelling

机译:观察8-19 km深度堤内的硅质岩浆运移:地壳异质岩和数值模拟的证据

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摘要

Within the context of magma transport processes in a dyke, this paper integrates petrography and thermodynamic modelling together with fluid dynamics to model the melting of the wall rock in three magma dykes at crustal depths from 8 to 19 km. Using this combination we explore the interaction between thermal and mechanical processes during silicic magma ascent, and the implications for the relative abundance of different crustal xenoliths erupted at the surface. We utilize a two-dimensional thermal model of dacitic magma injection and flow in dykes of different thickness, lengths and depths and associated partial melting of the wall rock, and compare the results with field examples from the Neogene Volcanic Province, SE Spain.
机译:在堤坝的岩浆运移过程中,本文将岩石学和热力学模型与流体动力学相结合,以模拟地壳深度在8至19 km的三个岩浆堤坝中围岩的融化。使用这种组合,我们探索了硅质岩浆上升过程中热过程和机械过程之间的相互作用,以及对地表喷发的不同地壳异种岩的相对丰度的影响。我们利用二维热力模型对不同厚度,长度和深度的堤坝中岩浆注入和流动以及围岩相关的部分融化进行了分析,并将结果与​​西班牙东南部新近纪火山省的田间实例进行了比较。

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