【摘 要】
：
The metamophic peridotite of ophiolite belt in Mt. Ailao is composed of lherzolite and harzburgite. The former shows the charateristics of primary pyrolite and
【出 处】
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Chinese Science Bulletin
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The metamophic peridotite of ophiolite belt in Mt. Ailao is composed of lherzolite and harzburgite. The former shows the charateristics of primary pyrolite and the latter shows those of deleted (relict)pyrolite. By partial melting of lherzolite, two primary magmas: tholeiitic magma and picrite-basalt magma are formed. The former evoluted into gabbro-diabase-pyroxenic basalt rock series and show the characteristics of MORB; while the latter evoluted into gabbro-diorite-albite basalt-picrite basalt one, and show the characteristics of para-MORB.
The former shows the charateristics of primary pyrolite and the latter shows those of deleted (relict) pyrolite. By partial melting of lherzolite, two primary magmas: tholeiitic magma and picolin-basalt magma are formed. The former evoluted into gabbro-diabase-pyroxenic basalt rock series and show the characteristics of MORB; while the latter evoluted into gabbro-diorite-albite basalt-picrite basalt one, and show the characteristics of para-MORB .
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