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作为澳大利亚数个火山成因的硫化矿床的地球化学研究的一部分,对位于新南威尔士的Woodlawn矿床周围汞的原生分散晕进行了调查。由于应用了一种改进了的可测到ppb数量级的汞浓度的方法,使测定围岩中汞的分布成为可能。统计计算显示出存在着两个独立的汞的总体,计算了能够把每个样品分到已确定的矿石组中的概率。Woodlawn向斜轴范围内矿体附近一狭窄带中汞的高度浓集是所研究地区汞分布的特征,这个地区显示出有一软弱带,这可能曾作为上升热液的通道。到目前阶段为止还不能把含矿热液和蚀变热液很好地区分开来。这二种可能性都可能引起Woodlawn矿体附近汞的浓集。
As part of a geochemical study of several volcanic sulfide deposits in Australia, the primary dispersal of mercury around the Woodlawn deposit in New South Wales was investigated. Due to the application of an improved method of measurable mercury concentrations in the order of ppb, it is possible to determine the distribution of mercury in the surrounding rock. The statistical calculations show that there are two separate mercury totals and that the probability of each sample being assigned to the identified ore group is calculated. The high concentration of mercury in a narrow zone near the ore body in the Woodlawn synclinal axis is characteristic of the mercury distribution in the area under study, showing a zone of weakness that may have served as an avenue for ascending hydrothermal fluids. Up to the present stage can not distinguish between ore-containing hydrothermal fluids and hydrothermal fluids. Both of these possibilities may cause the concentration of mercury near the Woodlawn ore body.