布青山构造混杂岩带是大洋岩石圈板块由南向北阶段性俯冲的产物,是东昆南混杂岩带的重要组成部分.运用构造-岩性双重填图方法,在布青山得力斯坦至哥日卓托一带构造混杂岩进行了大比例尺填绘;通过对带内的物质组成、变形-变质特征研究,结合室内显微构造分析,将与混杂岩带有关的物质组成划分为弱变形的"岩块"和强变形的"基质"2类.在"岩块"和"基质"构造几何学和运动学特征研究的基础上,重点分析了地质体的变形截切关系及构造组合特征,识别出4期变形作用,建立了布青山构造混杂岩带的相对构造变形序列,为布青山混杂岩带构造演化提供了新的依据.%The Buqingshan tectonic melange was formed in the northward subduction process of oceanic lithosphere plate, which played an important role in the tectonic mélange of the southern margin of the East Kunlun.Through using the structure and lithology double geological mapping method, the Buqingshan tectonic mélange from Delisitan to Gerizhuotuo has been mapped with a large scale.After carrying out the study on material composition and deformational-metamorphic characteristics of the outcrops, the tectonic mélange has been divided into two parts, i.e., matrix with strong deformation and rock blocks with weak deformation, by combining with the study of the microstructures under the microscope.Based on the study on the geometry and kinematics between matrix and rock blocks of these tectonic mélange,the truncated relationship and tectonic association of the different geological bodies have been analyzed.As a result, 4 phases of deformation have been recognized and the relative deformation sequence of the Buqingshan tectonic mélange has been tentatively established, which provides new evidence for the study of tectonic evolution process of East Kunlun.
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