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本文运用了地质历史分析法,以槽台发展的观点,将横断山区划分为Ⅻ个构造- 建造-成矿带,详细论述了每个带的地质构造发展历史和成矿作用的地质背景以及矿产分布规律。根据板块构造观点,可将区内地壳发展历史大致分为四个大的阶段,早石炭世以前陆壳敛合阶段,二叠纪地壳张开、扩张阶段;晚三叠世洋壳俯冲、消减阶段;晚三叠世以后地壳挤压阶段。矿产主要形成于板块俯冲及后期挤压阶段。
This paper uses the method of geo-historical analysis and divides the Hengduan Mountains into three tectono-construction-metallogenic belts from the viewpoint of trough development. The geological history of each belt and the geological background of mineralization and mineral resources Distribution. According to the plate tectonic point of view, the history of the crustal development in the area can be divided into four major stages. During the Early Carboniferous, the continental crust convergence and Permian crust open and expanded. The Late Triassic oceanic crust subducted and subsided Stage; Late Triassic crustal extrusion stage. Minerals mainly formed in the plate subduction and post-extrusion stage.