Exchange between Mafic Enclaves and Host Magma： Case of 1991-1995 Mount Unzen Eruption  

作　　者：Ilya S. Fomin Pavel Yu. Plechov 

机构地区：[1]Lomonosov Moscow State University, Moscow 119991, Russia [2]Institute of Geochemistry and Analytical Chemistry R.AS, Moscow 119991, Russia

出　　处：《Journal of Earth Science and Engineering》2012年第11期631-635,共5页地球科学与工程（英文版）

摘　　要：Recent eruption of Unzen Volcano in 1991-1995 caught attention of scientists all over the world because of disastrous character of previous one in 1792. Intrusion of andesitic magma to the chamber with rhyolitic magma is proposed to be a trigger for these eruptions. T-P-X parameters of two end-member magmas have been estimated several times, but usually estimations are based on phenocrysts assemblages. New results of this research are based on mafic enclaves and groundmass. These results are significant for magma mixing and mingling theory.

关 键 词：Unzen Volcano magma mixing magma mingling mafic enclaves X-Ray tomography. 

分 类 号：P588.121[天文地球—岩石学] P317.3[天文地球—地质学]