TECTONISM AND MAGMATISM OF LOWER YANGTZE VALLEY

摘要

＜正＞Lower Yangtze Valley is located in the middle part of East China,itis one of the fertile region of iron-copper deposits of China. In recent yearsa series of large volcanogenetic iron ore deposits were found n this area,which genetically related to Mesozoic volcanism.The present paper is tostudy the tectonic setting in the viewpoint of plate tectonics, to evaluatethe relationship between tectonism and volcanism, and to trace the mechanism of ore formation and its genesis.