关键词: 金矿, 矿产预测评价模型, 成矿区带, 资源潜力, 中国

Abstract:

Based on the national gold resource potential assessment, authors classify the predictive types of gold deposit in China into 12 categories, such as hydrothermal type associated with the intrusive rock, cracked-alteration type, porphyry type, skarn type, marine volcanic type, continental volcanic type, micro-gruanlar disseminated type, hydrothermal type located in matamorphic clastic rocks, greenstone formation type, placer gold type, weathering crust type and conglomerate type gold deposits. Among these deposits, the first three types are dominated with the percent of predictive gold resources respectively as 38%, 21% and 14% in turns. According to the spatial distribution and metallogenic geological settings of gold deposits, 55 gold metallogenic areas (zones) are determined. The gold deposits mainly concentrates in such areas as Jiaodong, southern edge of North China platform, western Qinling, eastern Qinling, the eastern Liaoning, the triangle area of Guizhou-Guangxi-Yunnan and Ailaoshan etc. According to the geologic background of gold deposits, combining with the national gold potential assessment and recent gold deposit prospecting progress, authors put forward some advices for the further exploration program.

Key words: gold deposits, mineral predictive and aseesment model, metallogenic areas(zones), resource potential, China