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花岗岩类岩石形成于不同的地质构造环境,具有不同的物质来源和不同的形成方式。根据与大地构造发展阶段的关系,将中国花岗岩类划分为两个成因类型:深成型花岗岩和火山型花岗岩。 (1)深成型花岗岩是指在地槽发展的褶皱回返时期形成的花岗岩类。这类花岗岩主要分布于各地质时期的褶皱带内,如产于阴山古陆东端前寒武纪褶皱带中的前寒武纪花岗岩、产于祁连山加里东褶皱带中的加里东期花岗岩、产于天山东端、内蒙大兴安岭和吉黑海西褶皱带中的海西期花岗岩等,皆属于此类。在这类花岗岩分布地区一般不出现
Granite rocks formed in different geological tectonic environment, with different sources of material and different forms of formation. According to the relationship with the tectonic stage of development, the Chinese granitoids are divided into two genetic types: deep-formed granite and volcanic granite. (1) Deep-formed granite refers to the granitoids formed during the fold-return period of the trough development. Such granites are mainly distributed in the geologic fold belts, such as the Precambrian granite produced in the Precambrian fold belt at the eastern end of the Yinshan ancient land, and the Caledonian granite produced in the Caledonian fold belt in the Qilian Mountains. The eastern end of Tianshan, Inner Mongolia Daxinganling and Jihei Hercynian fold belt Hercynian granite, belong to this category. In such areas of granite generally do not appear