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七二年以来,在“老变质岩铜矿”专题科研过程中,我们逐渐形成了这样的看法:我国老变质岩系中的层控型铜、铅、锌、硫、钴、铁、硼等矿床,大多数是变质—混合热液矿床。它们被控制在回曲构造里。回曲构造是老变质岩系的特征构造。回曲构造(ω构造) 老变质岩系的地质构造,常用“复杂”来形容,认为是多期构造迭加的结果。已知区域变质作用(包括混合岩化作用)同时产生的地质构造,特别是在高温高压下产生的塑性—流动构造,与沉积岩系的有很大不同;老变质岩系的构造与寒武纪以来的地槽褶皱
In the course of the special scientific research of “old metamorphic copper and copper mine” since 1972, we have gradually formed the view that the stratotype copper, lead, zinc, sulfur, cobalt, iron, boron, etc. in the old metamorphic series in our country The deposits, most of them are metamorphic-mixed hydrothermal deposits. They are controlled in the song structure. The metamorphic structure is the characteristic structure of the old metamorphic rocks. Back to the song structure (ω structure) The geological structure of the old metamorphic rock, commonly used “complex” to describe, that is the result of the multi-period structure superposition. It is known that the geologic tectonics produced at the same time by metamorphism (including migmatisation), especially the plastic-flow tectonics at high temperature and high pressure, are very different from the sedimentary rock series. The structure of the old metamorphic rocks is similar to the Cambrian Since the trough wrinkles