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GOLD mineralization popularly occurs in Funiushan area. Based on the studies on more than 40 gold deposits or ore spots, it is shown that most of them are small in scale except the Pengou gold deposit, whichcan be developed into a medium one. The Pengou is a gold deposit of medium-low temperature hydrothermal type. 1 Geological setting The Funiushan gold mineralization zone lying in the contiguous region of Nanzhao, Fangcheng andLushan Counties, Henan Province, is stituated on the tectonic and geochemical boundary between theNorth China block and Qinling Orogenic belt, and transverses the two first-grade tectonic units. Thehost rocks are mainly the strata of Xionger group (Pt_2 ) and the Funiushan granitic batholith. The Penggougold deposit is just located on the large-scale fault of Xiatang-Guihe. A series of metamorphic rocks ofXionger Group outcroped in the north of the deposit. 2 The features of deposit The ore bodies mostly appear in thick plate with sag-and-swell variation. The gold-bearing alterationzone from upper to lower layers can be divided as granite→ pyritization and phyllic alteration→ alteredgranitic porphyry→quartz vein→pyritization and phyllic alteration→cataclastic granite with phyllic alteration, i. e. the upper and lower gold-bearing layers can be separated by the altered granite. The ore body
Based on the studies on more than 40 gold deposits or ore spots, it is shown that most of them are small in scale not the Pengou gold deposit, whichcanbe developed into a medium one. The Pengou is a gold deposit of medium-low temperature hydrothermal type. 1 Geological setting The Funiushan gold mineralization zone lying in the contiguous region of Nanzhao, Fangcheng and Lanka Counties, Henan Province, is stituated on the tectonic and geochemical boundary between the North China block and Qinling Orogenic belt , and transverses the two first-grade tectonic units. Thehost rocks are mainly the strata of Xionger group (Pt_2) and the Funiushan granitic batholith. The Penggougold deposit is just located on the large-scale fault of Xiatang-Guihe. A series of metamorphic rocks ofXionger Group outcroped in the north of the deposit. 2 The features of deposit The ore bodies mostly appear in thick plate with sag-and-swell variation. The g old-bearing alterationzone from upper to lower layers can be divided as granite → pyritization and phyllic alteration → alteredgranitic porphyry → quartz vein → pyritization and phyllic alteration → cataclastic granite with phyllic alteration, ie the upper and lower gold-bearing layers can be separated by the altered granite. The ore body