引言在安大略西北部(西经86°西)的早前寒武纪苏必利尔省中,可圈出7个主要的东西走向的亚省(图1),从南到北,这些亚省是:瓦瓦、奎特科(Quetico)、瓦比贡(Wabigoon)、英格利河(English River)、宇智、贝林斯河(Berens River)和沙奇戈(Sachigo)等亚省。这些亚省的宽度从40到290公里,每个亚省都具有自己的岩性、构造和变质特征。亚省之间的岩性界线比较明显,在许多地方是以大断层为界。 Introduction In the early Precambrian province of Superior, in the northwestern Ontario (west longitude 86 ° west), seven major east-west provinces (Figure 1) were circled. From south to north, these provinces were: Wahwa, Quetico, Wabigoon, English River, Uchi, Berens River and Sachigo. These provinces have a width of 40 to 290 kilometers and each province has its own lithology, tectonics and metamorphism. The lithologic boundary between the provinces of Asia is obvious, in many places it is bounded by large faults.