摘要
贵州西北部铅锌矿床普遍含有较高的伴生银,银随铅锌品位的增高而增高。矿床中显微级独立银矿物有辉银矿、自然银、硫锑铜银矿和银黝铜矿,主要分布于方铅矿中。但由于锌品位高于沿,闪锌矿成为银的主要载体矿物。银可能主要以超显微矿物包体形式存在于闪锌矿和方铅矿中。
There are widely distributed associated silvers within lead-zinc deposits,northwestern Guizhou. The silver contents increase with the lead and zincgrades in the deposits. Independent silver minerals in the deposits areargentite, native silver, polybasite and freibergite, which are mainlydistributed within galena. The main silver carrier mineral is sphalerite.Silver may exist in sphalerite and galena as an ultramicromineral inclusion.
关键词
铅锌矿床
银
赋存状态
argentite
native silver
polybasite
freibergite
lead-zinc deposit
Guizhou
