THE GEOLOGY AND GENESIS OF THE Q1YUGOU EXPLOSIVE BRECCIA TYPE GOLD DEPOSITS,HENAN PROVINCE  

出　　处：《石家庄经济学院学报》1995年第S1期44-45,共2页Journal of Shijiazhuang University of Economics

摘　　要：The Qiyugou explosive breccia type gold deposits of northwestern Songxian, Henan Province is situated at the East Qinling, on the southern margin of the North China Platform.The basement rocks are the Archean Taihua Group gneisses which were overlaid by the Proterozoic Xionger Group metaandesites. NW-and NE-trending folds and fractures are well developed. Nlagmatism of the Mid-Late Yanshan Epoch led to the formation of the Huashan granite batholith and a variety of acid/alkali dykes, meanwhile more than thirty explosive breccia bodies had been brought about. The most important deposit type is the explosive breccia type represented by the Qiyugou deposit, meanwhile there are structure fracture altered rock type,the goldbearing quartz vein type, as well as porphyry-breccia type. All these types are the terminal products of the evolution and differentiation of the syntectic magma originated from lower crust or upper mantle. They are controlled by a unified structural pattern occurred in the same

关 键 词：Mo THE GEOLOGY AND GENESIS OF THE Q1YUGOU EXPLOSIVE BRECCIA TYPE GOLD DEPOSITS HENAN PROVINCE 

分 类 号：P618.51[天文地球—矿床学]