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通过几年的考察与研究,初步认为浙江有四种不同成因系列花岗岩类,即Ⅰ型花岗岩类(地壳同熔型花岗岩)、S型花岗岩类(陆壳改造花岗岩)、A型花岗岩类(碱性花岗岩)及M型花岗岩类(幔源型花岗岩)。 M型花岗岩以西裘石英闪长岩为代表,明显偏中-中酸性,富Na_2O和钠质斜长石,具低硅、高铝、富铁镁、钙、低钾等特点,其中Ti、V、Cr、Mn、Co、Ni、Cu等元素的含量高于其它成因系列花岗岩类,岩体侵入在海相角斑岩及相当成分的火山岩中,岩石受动力作
After several years of investigation and research, it is preliminarily believed that there are four series of granites in Zhejiang Province, namely, type I granites (crust and fusinite), S-type granites (continental crust remolded granite), A-type granites Granite) and M-type granite (mantle-derived granite). The M-type granites are characterized by western Qiu quartz diorite, obviously moderate-moderately acidic, rich in Na 2 O and sodium plagioclase, with the characteristics of low silicon, high aluminum, rich ferric magnesium, calcium and low potassium, among which Ti, V , The contents of Cr, Mn, Co, Ni, Cu and other elements are higher than those of other generative granites. The intrusions of rock mass in volcanic rocks of the marine phase porphyry and its relative composition,