Geological Characteristic And Metallogenic Prognosis Of Copper And Gold Deposit In Twenty-one Station,Tahe,Heilongjiang Province

It appeared a series of copper and gold ore body in the twenty-one station area Xing Meng orogenic system- Eerguna block, but the scale is not enough.Geological characteristic:There are the Mesozoic Middle Jurassic twenty-two station Formation(J2e)and the Cenozoic Quaternary Holocene(Qh2) in the stratum; There are the Mesozoic quartz flash(J3δο), quartz monzodiorite(K1ηγ),Granite porphyry and Diorite dikes.in the intrusive rock. U-Pb isotopic measured porphyry formation age 126.6Ma, Quartz diorite age is 142 Ma,the age of quartz-diorite is 129 Ma, diorite formation age is 142 Ma The alteration zoning mainly include potassic zone and quartz sericite zone, chlorite, kaolinite zone and epidote zone and carbonate zone,the orebody is nervation in this area,ore Texture- structure as much as subhedral- fractal texture, a few of milk-drop structure and metasomatic relict structure,disseminated structure, part of the vein disseminated structure, massive structure rarely;It is porphyry type preliminarily. An initial subject is deposit type porphyry type mineralization and favorable parts of metallogenic prediction.