摘要
１９９５年在老厂－１００ｍ中段花岗岩中发现并圈定了锡工业矿体，平均锡品位１％。锡矿体赋存于花岗岩体中４０３３突起的盆状构造中，即隐性构造带中，菱铁矿为矿体产出标志的特征矿物。花岗岩锡矿体的矿石为硫化物锡石型，属中－低温阶段形成。
An industrial tin orebody with average tin grade 1% was discovered and outlined from the granite at level 100 meters in the Laochang mine in 1995.It occurs in a basenshaped structure of the 4033 relief in the granite,that is in a recessive broken structure zone. Siderite is the characteristic mineral indicating occurrence of the orebody. The ore of the tin orebody in the granite is sulfide cassiterite type,formed in mesoepithermal stage.
出处
《矿产与地质》
1997年第2期99-102,共4页
Mineral Resources and Geology
关键词
锡矿床
地质特征
成因机制
花岗岩
矿床类型
Tin deposit,Geological character,Genetic mechanism,Granite,Gejiu,Yunnan
