| Huangbuling gold deposit is located at the westnorth of ZhaoYe gold deposit zone and in the hanging wall of Fenghuang Moutain –Huangbuling fault. It is controlled by Canzhuang gold deposit .Archaean Jiaodong group metamorphic rock remained some xenoliths in Huangbuling ore filed. Its lithology characterize Biotite granulitite ,amphibolite. Magmatic rocks mostly crop out Linglong granite and Guojialing granodiorite. Linglong granite is crop out in superficial part, and Guojialing granodiorite is plunged into deep part of Huangbuling ore field, which form double granite structure.Fenghuang Mountain –Huangbuling fault is the major ore-controlling structure in the ore filed. And ore-bearing fault are distributed in the hanging wall of this fault.The dykes are found in the deposit include lamprophyre, diorite diabase, pegmatite and subandestite.Lamprophyre is closed associated with gold mineralization in the both time and space .In the deposit, there are two groups of lamprophyre based on their orientation: NE and NNE oriented.NE oriented lamprophyre is altered and mineralized while the NNE oriented ones crosscut the auriferous veins .The scale of the lamprophyre is generally quite small. It should be pointed out, that at the eastern side of the deposit, NNE trending dykes are altered and mineralized also and contain maximum up to 1.2g/t of gold.15 gold veins of different scale have been found ,among which 7#,10#,11#,4#,6#,and 15# contain industrial ore bodies.7# vein is oriented in the NE45°±and is about 1000m long ,It consists of two southeastward dipped and one northwestward dipped veins and the later is the subordinate vein of the former .The three veins Make up a "入"pattern in the profile and contain 7-1#,7-2#,7-3# ore bodies .These ore bodies are vein –or lenticular shaped .In the southeastward dipped veins, the ore bodies occur in the major vein, while in the northwestward dipped subordinate vein, the ore body dips NW. the ore bodies are different in the scale. 7-1# ore body is the largest one that is 275m long ,extends to –150m along the dip direction. The mineralized ratio in the 7#vein is some 35%, and the ore bodies pitch NE with a pitch angle of 30°.10# vein trends in the NE65°,being 800m long and dipping southeastward at a 50-85°angle.Five different sized ore bodies have been found in 10# vein .the ore bodies are prismatic, veined and lenticular shaped .They pitch NE at 40°-60°angle with apparent pinching out and reappearing. The mineralized ratio of the vein is about 40%. Research indicates that the ore bodies at intersecting sites of the NE and NNE trending faults contain higher gold grade.The make-up of the deposit is very complicated. The metallic minerals in the ores include pyrite, colloid pyrite, pyrrhotite, molybdenite, chalcopyrite, galena, sphalerite, bismuthinite, lilianite, argentite, native silver, hessite, electrum, goldargentid, native gold, magnetite, hematite, siderite, specularite and so on. Non-metallic minerals include quartz, potassic feldspar, calcite, chlorite and so on. The gold-bearing minerals in the ores are mainly electrum while the silver-bearing minerals are mainly argentite. Among the minerals mentioned above, specularite , colloid pyrite, bismuthinite, lilianite, native silver and argentite are associated with base metallic sulfide stage that is later than the formation of the magnetite, specularite, potasic feldspar and early generation of quartz and pyrite.Mineralization stage Based on the structures and textures of gold ores and on th cross-cutting relationship of gold veins in the deposit, four mineralizing stages→quartz →pyrite→base metallic sulfide →carbonate minerals, have recognized, with the second and the third mineralizing stages dominating.Alteration of host rocks. Alteration found in the deposit includes potassic alteration, berecitization, silicification, carbonatization, sericitization and chloritization. Among all these alteration, silicification, berecitization are most closely related to gold mineralizatio...
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