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提敏斯地区太古代火山岩划分为两个群:较老的德洛罗群和上覆的提斯达尔群,每个群又划分为三个火山岩组。德洛罗群主要为钙碱系列,提斯达尔群的火山岩成分可分三部分,其下部为科马提岩,中部为厚层拉斑玄武岩,上部为钙碱质岩石。波丘潘群的沉积岩与德洛罗群上部及提斯达尔群火山岩层同一时代,通过对提敏斯—马塔彻温—科克兰湖区上下关系的观察,在提敏斯地区所确定的群实际上是超群,群下层的组应该提升为群。从区域上观察金矿床时,可发现下列重要关系: ①大多数矿床在空间上与德斯特—波丘潘断层和拉德湖断层相密切伴生。②沿断层发生强烈的碳酸盐化。③断层与上超群的下群科马提岩相一致。④在金矿开采区,沉积岩较多。⑤在科马提岩中或其附近常见石英—长石斑岩岩株,认为超镁铁质科马提岩是金矿的主要矿源层,碳酸盐化使金释放,并富集到扩容带中。
The Archean volcanic rocks in the area of the Timmins are divided into two groups: the older Delosu group and the overlying Teesedar group, each divided into three volcanic groups. The Delosian group is mainly a series of calc-alkali. The volcanic rocks of the Tethdar Group can be divided into three parts, the lower part is the komati rock, the middle part is the thick tholeiite basalts, and the upper part is the calc-alkaline rock. At the same time, the sedimentary rocks of the Bhupamun group and the upper part of the Troglo group and the volcanic strata of the Teth’dar Group, through the observation of the up-and-down relationship between the Timmins-Matamich-Chek Lam area and the actual group On the superior, the group below the group should be promoted as a group. The following important relationships can be found when looking at gold deposits from the area: Most deposits are spatially closely associated with the Destre-Bochum fault and the Ladder fault. ② strong carbonate carbonate along the fault. ③ fault and the superior group under the komati rock consistent. ④ In the gold mining area, sedimentary rocks are more. ⑤ Common quartz-feldspar porphyry rocks in or near the komatiites suggest that the ultramafite komatiite is the main source layer of the gold deposit, which is liberated by carbonation and enriched to expand With.