岩浆混合作用——来自甘肃北山的野外证据  

MAGMA HYBRID PROCESS--FIELD EVIDENCES FROM GANSU BEISHAN MOUNTAINS

作　　者：梁明宏[1] 周兴安 龚全胜[3] 李海林[3] 

机构地区：[1]中国地质大学,湖北武汉430074 [2]宁夏中宁县土地管理局,宁夏中宁751200 [3]甘肃省地质调查院第三地质调查所,甘肃兰州730050

出　　处：《甘肃地质学报》2002年第1期44-49,共6页Acta Geologica Gansu

摘　　要：在 1∶2 5万马鬃山幅区调填图和方法研究工作中 ,通过观察到的一些与岩浆混合模式相关的现象 ,指出暗色微粒镁铁质包体是岩浆混合作用的有利证据 ,讨论了与花岗岩侵入体相关的镁铁质小岩体混合成因的可能性 ,认为岩浆混合作用在造山带岩浆活动中是一种极为普遍的现象。During the regional geological surveying and mapping (1∶250 000) and research work in Mazongshan area, writers have observed some phenomenon which are relavant to the model of mingling of magma. On the basis of these, writers in this paper has discussed the conception and the origin of the magma hybrid process, and the possibilities of hybrid origin of the small mafic inclusion with relation to granitic intrusion. Writers have come up with the viewpoint that the mafic microgranular enclave is an important evidence of magma hybrid process, and which is considered as a very universal phenomenon in the magmatic activities of orogenic belt.

关 键 词：岩浆混合作用 暗色微粒镁铁质包体 H型花岗岩 

分 类 号：P588.1[天文地球—岩石学]