云南砚山玛瑙矿成矿地质特征及成因探讨  

THE GEOLOGICAL FEATURE AND PROBE INTO THE GENESIS OF YANSHAN AGATE DEPOSIT IN YUNNAN

作　　者：张艳韬 郑天平 马变变 ZHANG Yan-tao;ZHENG Tian-ping;MA Bian-bian(Geological Team 2,Yunnan Exploration&Development Bureau of Geology&Mineral Resources,Wenshan 663099)

机构地区：[1]云南省地质矿产勘查开发局第二地质大队,云南文山663099

出　　处：《云南地质》2020年第3期422-427,共6页Yunnan Geology

摘　　要：云南砚山玛瑙具有较好宝石学特征,该玛瑙矿体沿古近纪酸性喷出岩(Eλπ)溢流相熔岩之气孔带似层状产出,矿体产出层位较为稳定,为原生分泌体状晶腺型玛瑙矿,矿床成因属层控酸性火山热液型瑙矿床.The jewelry feature of agate in Yanshan,Yunnan is good.The agate orebody is stratoid along the fumarole zone of effusive lava of Paleogene acid eruptive rock(Eλπ).The orebody horizone is stable,which is the original secretion crystal gland agate deposi.It is a stratabound acid volcanic hydrothermal agate de-posit in genesis.

关 键 词：砚山玛瑙矿 喷出岩 层控 热液型矿床 云南 

分 类 号：P619.283[天文地球—矿床学]