CHARACTERISTICS OF INTRUSIVE ROCKS IN HUAKUNTOUYINGZI VORTEX STRUCTURE IN LIAONING PROVINCE AND ITS RELATION WITH TECTONIC EVOLUTION

The Huakuntouyingzi intrusive rock, as an important part of the Huakuntouyingzi vortex structure, can be divided into four intrusive bodies, namely, the Early Carboniferous diabase, Early Triassic diorite, Middle Jurassic monzogranite and Early Cretaceous granite porphyry, and the latest invasion of rhyolitic porphyry dyke. The magma of Early Carboniferous diabase originated from the upper mantle; while those of the other rock bodies were derived from the lower crust, with fusion of partial continental crust material. The relation between the intrusive rocks and tectonic evolution is characterized by passive emplacement mechanism.