天津市大地构造相划分  

Classification of the Tectonic Facies in Tianjin

作　　者：闻秀明 

机构地区：[1]天津市地质调查研究院,天津300191

出　　处：《地质调查与研究》2012年第4期276-282,共7页Geological Survey and Research

基　　金：国家地质大调查项目:天津市矿产资源潜力评价(1212011121000)

摘　　要：为了总结天津市区域成矿规律、进行成矿远景预测,为天津市矿产资源潜力评价提供基础资料,五年多来笔者一直从事天津市矿产资源潜力评价研究工作。在大地构造相图编制过程中,根据板块构造-地球动力学理论,以优势大地构造相为原则,沉积岩建造构造、火山岩性岩相构造、侵入岩浆构造、变质建造构造和变形构造等分析研究为基础,把一种岩石或几种岩石的组合作为岩石构造组合进行系统研究,然后,对天津市大地构造相进行了划分。天津市可分为一个华北陆块区相系和一个冀辽陆块大相,在此基础上划分了5个相,即古弧盆相、夭折裂谷相、陆表海盆地相、盘山板内岩浆杂岩相和坳陷盆地相,又进一步划分为9个亚相和7个岩石构造组合(Ⅴ级)。We have been engaged in the work of the potentiality assessment of mineral resources of Tianjin for more than five years. We have summarized the regularity of regional mineralization and metallogenic prediction. We compile the tectonic facies diagram on the plate tectonics and earth dynamics with the principle of advantageous tectonic facies. The tectonic facies are divided basing on the structure of sedimentary rock, lithology and lithofacies structure of volcanic rock, structure of intrusive rock, metamorphic structure, deformation structure and rock structure composed of one rock or several rock researched. The tectonic facies of Tianjin can be divided into one phase series of the North China block and one large phase of the Jilin-Liaoning block, then divided into five phases： the ancient arc basin phase, aborted rift phase, the epicontinental sea basin phase, the Panshan plate igneous complex rock phase and the depression basin phase, which are further divided into 9 subfacies and 7 petrotectonic assemblage （V grade）.

关 键 词：天津市 大地构造相 分区 

分 类 号：P542.2[天文地球—构造地质学]