【类型】期刊
【题名】Occurrence of Gold in the Liuan Gold Deposit in Dayaoshan Area, Eastern Guangxi
【作者】 宋承滨
【关键词】 金的赋存形态 Liuan Gold Mine 六安金矿 Occurrence Form of Gold Dayaoshan Area in Eastern Guangxi 桂东大瑶山地区
【摘要】Dayaoshan area in Eastern Guangxi is an important gold production base in southern China. Mul-ti-stage tectonic magmatic activities provide superior metallogenic conditions for gold and poly-metallic mineralization. However, from the perspective of prospecting practice, due to the rela-tively backward and weak research of metallogenic theory, the prospecting idea is still limited to “on-site prospecting”. Although more than 200 gold deposits (or mineralization points) have been found in succession, the overall performance is “only stars, not the moon”. The prospecting results are seriously mismatched with the super strong gold geochemical anomalies and superior metallogenic geological conditions in this area. Altered rock type gold deposit is an important type of mineral exploration in Dayaoshan area in the future, but the research on the basic metallogenic characteristics of this type of gold deposit is relatively weak. In view of this, the altered rock type gold deposit in Liuan is selected as the object of this study. Through detailed field geological survey, the basic characteristics and typical ore deposits of the deposit are studied by means of microscope, scanning electron microscope and electron probe, in order to provide the necessary basis for the follow-up mineral exploration and resource development. The results show that the main wall rock alteration of Liuan gold deposit is silicification, pyritization, sericitization, chloritization and limonitization; the occurrence state of gold is mainly wrapped gold and lattice gold, in which the wrapped gold is hosted in pyrite in the form of silver gold ore, and the grain size is generally 10 μm; the lattice gold is mainly hosted in pyrite with complete crystal form in the form of isomorphism.
【年份】2021
【ISSN】2163-3967
【页码】551-560
【期号】5
【作者单位】桂林理工大学地球科学学院，广西 桂林 桂林理工大学南宁分校，广西 南宁
【期刊卷】11
【分类号】550
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