岩石学和地球化学特征揭示包体寄主岩为碧玄岩,岩浆没有经历明显分异和同化混杂作用。
Their petrological and geochemical characters suggest that the host rock of the xenoliths is basanite, and the magma has not experienced obvious differentiation and assimilatory contamination.
除了结晶分异模式外,富氟花岗岩浆液态不混溶作用也是伟晶岩成岩成矿的重要机制。
Beside fractional crystallization model, liquid immiscibility of Fluorine-rich granite magma is an important mechanism to form pegmatite and pegmatite type deposit.
含矿岩体是同化了壳源组分且经历了充分的岩浆重力分异作用后脉动式侵位的。
It seems quite probable that the ore bearing intrusions were formed by repeated intruding after assimilating crustal materials penetrated and after sufficient gravitational differentiation.
进一步研究发现,矿化与岩浆的结晶分异作用、流体的沸腾作用及流体的混合作用关系密切。
Further studies indicate that mineralization has intimate relationship with magmatic fractional crystallization, fluid boiling and fluid mixing.
大庙式铁矿的形成与苏长质岩浆密切相关,但含矿物质不是来自于苏长质岩浆的分异作用,而是同时侵位的透岩浆流体。
Nevertheless, the ore-forming materials were derived from the concurrently emplaced transmagmatic fluids instead of from the noritic magma differentiation.
综合岩石学、地球化学和同位素等方面的对比研究,笔者认为八大石闪长质包体属于同源包体,为寄主花岗岩同源母岩浆经结晶分异作用形成的早期产物。
Petrologic, geochemical and isotopic studies prove that the Badashi dioritic enclaves are autoliths and the earlier products generated by crystal fractionation of the host granite parental magma.
综合岩石学、地球化学和同位素等方面的对比研究,笔者认为八大石闪长质包体属于同源包体,为寄主花岗岩同源母岩浆经结晶分异作用形成的早期产物。
Petrologic, geochemical and isotopic studies prove that the Badashi dioritic enclaves are autoliths and the earlier products generated by crystal fractionation of the host granite parental magma.
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