Analysis Of Metallogenic Geological Conditions And Prospecting Potential Of The Yiluote-River Gold Deposit In Heihe,Heilongjiang Province

The Yiluote-River gold deposit is located in the eastern part of the Xingmeng orogenic belt, in the Dabaoshan island arc belt. On the eastern side, the Heilongjiang fault is adjacent to the Jeya-Bureya block in Russia, the Songnen block in the south and the Erguna block in the north. The geological evolution of the study area has a long history, complex geological structure, frequent volcanic and magmatic activities, and rich mineral resources. At the same time, is the southern end of the Greater Xing'an Mountains metallogenic belt, Duobaoshan- Daxin Tuen Huaxi period- Indosinian- Yanshan early gold-copper-molybdenum-lead-zinc metallogenic belt(Duobaoshan- Daxinzhan gold multi-metal integrated exploration area). The tectonic line of the deposit is generally north-northeast, partly north-west and north-south. Under the influence of the Yiluote fault, the ore-hosted rocks are broken in the study area, and the kaolinite and fading alteration are strong. The common alteration is silicification, sericitization, green-curtain petrochemical, chloritization, pyritization, carbonate Salting and so on. Gold mineralization is closely related to silicification and pyrite mineralization, especially to vein vein silicification. The fine vein-like siliceous grain is filled along the rock crevice, which is arranged in an orderly direction, and the mineralization of kaolinite is strong. Ore faded white white. And is accompanied by carbonation. Green curtain petrochemical range, but the intensity is low. Sericite partial appearance, alteration weak. It is suggested that the type of ore alteration is low-temperature volcanic hydrothermal fluid.The ore bodies mainly occur in the rhyolitic breccia of the Lower Cretaceous Guanghua Formation in the Cretaceous. The ore bodies and the surrounding rocks are unclear, and the ores generally have strong kaolinite and vein veins Silicification, pyrite mineralization, carbonation. Near-mine wall rock alteration characteristics and ore is roughly the same, from the ore body farther away from the surrounding rock with chlorite, green curtain petrochemical.According to the metallogenic geological conditions and geological, geophysical, and geochemical characteristics of the earth, the ore-forming conditions and the ore-forming conditions are summarized, and the geochemical characteristics of the deposits are analyzed. Chemical and other prospecting information to determine the direction of exploration, the preferred follow-up exploration prospecting target area, to predict the potential for prospecting. The main progress achieved is as follows.The results of geophysical exploration combined with trench drilling show that the gold mineralization is in the edge of the low-resistance crushing zone, and the apparent polarization strength of mineralized horizons is generally between 4-6% Resistivity of about 500?.m.Through the work of geochemical exploration, there were 225 single element anomalies and 12 combined anomalies within the study area.16 gold-ore bodies and 4 lead-mineralized bodies were discovered in the area of geophysical and geochemical exploration in the study area. Of which 7 gold ore body.The geophysical and geophysical characteristics of geophysical prospecting are further summarized. The prospecting direction of this area is as follows: in the abnormal high-value area of geochemical anomaly and the gradient gradient belt of IPST, the low- In the eastern part of the Chalghla River, in the eastern part of the Chalghla River, the eastern part of the Chalghla River, Group to find the broken altered metamorphic sandstone, slate, etc., to further summarize the law of mineralization.