安山岩浆
安山岩浆-
安山质岩浆可由玄武岩岩浆经15%～28%的分离结晶形成。
The andesitic magma could be produced by the fractional crystallization of basalt magma , the fraction of which is 15 to 28 percent .
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该矿床属于以安山质岩浆为母岩浆的矿（岩）浆矿床（主要）和热液矿床（次要）的复合型矿床。
Hence , this deposit is a polygenetic ore magmatic deposit ( predominant ) and hydrothermal deposit ( subordinate ), with the andesitic magma as primary magma .
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古火山口相从苦橄质到安山质高分异岩浆喷发；
Magma eruptions with high fractionation from picritic to andesitic in magma chambers of vents .