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本文运用地质力学的理论,对云南的地质构造特征,以及主要构造体系控制某些重要矿产的分布作了综合分析,全文共分三部份:第一,从中国大陆运动的方式和方向出发,论述了云南主要构造体系的分布特点,并运用力学的分析方法,重点厘定了三种弧形构造,即:联合弧、复合弧及序次弧。第二,从地壳形变史的研究入手,结合建造的分析,不同构造层内构造形迹筛分的方法及构造不整合的确定等,重塑了云南主要构造体系的成生发展史,提出了各种构造体系发生、发展、加强、改造的过程,以及伴随这些过程岩浆活动及变质作用的特点。第三,把成矿建造和控矿改造结合起来,从时间和空间两个方面分析了云南的锡钨、铜、铁等重要矿产的形成和分布,即与主要构造体系在成生发展中的内在联系;初步归纳出主要构造体系对这些矿产的分级控矿和复合控矿的看法,提出进一步找矿的方向。
This paper uses geomechanics theory to make a comprehensive analysis of the geotectonic characteristics of Yunnan and the distribution of some important minerals controlled by the main tectonic system. The full text is divided into three parts: First, starting from the ways and directions of the movement in mainland China, The distribution characteristics of the main tectonic systems in Yunnan Province are discussed. Three mechanics of arc structure, ie, joint arc, composite arc and sequential arc, are emphatically determined by means of mechanics analysis. Second, starting from the study of the crustal deformation history, combining with the analysis of the construction, the method of screening the structural trace in different tectonic layers and the determination of the structural unconformity, the history of the development of the major tectonic systems in Yunnan is reshaped. The occurrence, development, strengthening and transformation of the tectonic system and the characteristics of magmatic activity and metamorphism accompanying these processes. Thirdly, by combining the metallogenic construction and the ore-control transformation, the formation and distribution of the important minerals such as tin, tungsten, copper and iron in Yunnan are analyzed both in time and space, that is to say, in the development of the major tectonic systems Internal relations; preliminary summarized the main tectonic system of these mineral grading ore and composite ore control point of view, put forward further prospecting direction.