期刊
ELEMENTS
卷 3, 期 4, 页码 261-266出版社
MINERALOGICAL SOC AMER
DOI: 10.2113/gselements.3.4.261
关键词
zoning; igneous petrology; magma chamber; electron microprobe; scanning electron microscope
Spatial compositional variations in magmatic minerals record chemical and physical changes in the magma from which they grew. Electron-beam techniques allow high-resolution imaging and quantitative analysis of this compositional archive for major, minor and some trace elements. In this way, magmatic processes such as crystallization, recharge in a magma chamber, decompression during ascent, and convection in the magma chamber can be identified and the history of magmatic systems prior to eruption reconstructed.
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