论文部分内容阅读
1982年12月,安大略地质调查所在多伦多召开了一次名为“安大略的金矿床”讨论会。讨论会的重点是调查所和几所大学取得的脉金矿床的研究成果。整个讨论的主题是,金在空间上与绿岩带中长英质侵入体共生的脉系中的富集。这些侵入体具有独特的特征(Gallagher1940;Kerrich等人,1980:Munha等人,1980)。长石为钠长石或带有钠长石环边的钠质斜长石。白云母和方解石与长石一起产出,这两种矿物表明与CO_2-H_2O流体发生了相互作用。侵入体中的石英—碳酸盐脉,证明在岩浆侵位之后发生了脆性变形。 本文探讨了瓦瓦绿岩带中奥长花岗岩岩株周围含金石英脉的分布情况。研究区位于安大略省阿尔戈马地区(Algoma)瓦瓦以北25公里的古切尔湖(Gutcher)地段。研究表明金
In December 1982, the Ontario Geological Survey held a colloquium entitled “Ontario’s Gold Deposits” in Toronto. The symposium focused on the research results of pulse-gold deposits made by the institute and several universities. The theme of the whole discussion is the enrichment of gold in the phylogenies that are spatially coexistent with the mid-British intrusions in the Greenstone Belt. These intrusions have unique traits (Gallagher 1940; Kerrich et al., 1980: Munha et al., 1980). Feldspar is albite or sodium plagioclase with albite rim. Muscovite and calcite were produced along with feldspar, both minerals indicating interaction with CO 2 -H 2 O fluids. Intrusive quartz-carbonate veins in the body proved brittle deformation after magma emplacement. In this paper, the distribution of gold-bearing quartz veins around the diabase monzonite in the tile-waalite belt is discussed. The study area is located on Gutcher, 25 kilometers north of Wah in Algoma, Ontario. Research shows gold