中国不同大地构造演化阶段玄武岩的岩石化学特征  

PETROCHEMICAL STUDY ON BASALTS OF DIFFERENT TECTONIC EVOLUTION STAGES IN CHINA

作　　者：杨洪之 朱振华[1] 赵志忠[1] 

机构地区：[1]中国科学院长沙大地构造研究所,长沙410013

出　　处：《大地构造与成矿学》1990年第4期282-292,共11页Geotectonica et Metallogenia

摘　　要：运用地洼学说观点,研究并指出了反映深部作用差异的大地构造演化史上,地槽、地台、地洼区三阶段玄武岩时空分布的三个高峰,并对大地构造属性较确切的玄武岩类岩石的大量岩石化学数据进行综合分析,从而揭示了地槽、地台、地洼三个地壳演化阶段的玄武岩类岩石组合的岩石化学特征,进而探讨了其与地壳及上地幔演化的一些关系。Based on the diwa theory, the authors point out three crests in three-stage basaltic temporal-spatial distribution, reflecting the difference in deep processes. After analysing a great deal of petrochemical data on basaltic rooks which have distinctive geotectonic attributes, the authors generalize the petrochemical features of basaltic rocks of three crustal evolution stages, geosynclinal, platform, and diwa, and then discuss the relationship between them and the evolution of the crust and upper mantle.

关 键 词：大地构造 演化 玄武岩 岩石化学 

分 类 号：P588.145[天文地球—岩石学]