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新发现的长坑金银矿床是一个新型沉积岩赋矿型贵金属矿床。大部分研究者认为其成因为大气降水对流。超高真空四极气相质谱系统分析显示该矿矿石矿物流体包裹体中存在9种轻烃有机气体,它们主要由C_(1-4)饱和烷烃和C_(2-4)不饱和烯烃和芳烃组成,但烷烃占绝对优势,而烯烃和芳烃含量很低,大部分样品∑alka/∑alke>100,说明这些有机气体
The newly discovered Changkeng gold-silver deposit is a new type of sedimentary-hosted ore type precious metal deposit. Most researchers believe that the cause of precipitation convection. Analysis of ultrahigh vacuum gas chromatography-quadrupole mass spectrometry system shows that there are 9 kinds of light hydrocarbon organic gases in the ore fluid inclusions of the ore, which are mainly composed of C 1-4 saturated alkanes and C 2-4 unsaturated olefins and aromatics , But the absolute advantage of alkanes, alkenes and aromatics content is very low, most of the samples Σalka / Σalke> 100, indicating that these organic gases