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金多门特金矿区位于阿比特比地区太古代火山岩带的北部。含金透镜体呈东西走向,陡南倾;单斜的火山—沉积岩层和侵入的长英质杂岩也呈南倾(英安质侵入岩和FP与QFP岩墙群)。所有这些岩石单元和含金透镜体都被富角闪岩质的镁铁质岩墙所穿切。韧性变形总体很弱,不均匀,以陡倾斜延长为主,以分布于各种岩石类型含有陡倾斜矿物延伸线理的面状组构为特征。金成矿作用出现于富含贱金属硫化物的4种同生的岩石类型中:(1)经济意义最大的细石英脉;(2)沉积岩层中的层控矿体;(3)QFP岩墙内的石英脉;(4)石英细脉群。对应于原始渗透特征的控矿构造有:(1)地层接触带;(2)特殊的岩石单元;(3)同火山断层;(4)原有节理。矿体的几何形态显示出朝南的复杂性,如古风化面方向。
The Jindoldmet goldfield is located north of the Archean volcanic belt in Abitby. The gold-bearing lens behaves east-west and steep southward. The monoclinic volcanic-sedimentary rocks and intrusive metamorphic rocks also show south-dip (British intrusive rocks and FP and QFP dikes). All of these rock units and gold-containing lens bodies are cut by amphibolite-type mafic dikes. The ductile deformations are generally weak and inhomogeneous and are characterized by steep-lengthening and are distributed in a wide variety of planar structures with steep-inclined mineral extension lineages in a variety of rock types. Gold mineralization occurs in four syngenetic rock types rich in base metal sulphides: (1) fine-grained quartz veins with the greatest economic significance; (2) layer-controlled ore bodies in sedimentary formations; (3) QFP dikes Within the quartz vein; (4) quartz vein group. The ore-controlling structures corresponding to the original infiltration characteristics are: (1) strata contact zone; (2) special rock unit; (3) volcano fault; (4) original joint. The geometry of the orebody shows a south-facing complexity, such as the paleo-weathered surface.