前寒武纪斜长岩在苏联广大地区都有发现;在阿尔丹-斯坦诺大、阿纳巴尔、乌克兰和波罗的地盾,在俄罗斯地台的某些部分,在蒙古-鄂霍次克褶皱基底以及其他地区,它们形成大小不同的独立岩体,或主要以其他岩石组成的杂岩体的一部分。在最近10—15年内,对前寒武纪斜长岩的研究更为重视,地质学家们不仅从各方面详细地研究了已知的斜长岩体,而且还报导了一些新的斜长岩地区(波罗的海地区,远东等)。 Precambrian plagioclase is found in vast areas of the Soviet Union; in the Arden-Steyno, Anapal, Ukraine and Baltic shields, in certain parts of the Russian platform, in the Mongolia-Okhotsk G-fold folds, and other areas that form separate rock masses of different sizes or are part of a complex of mainly major rocks. In the recent 10-15 years, more emphasis has been placed on the study of Precambrian plagioclase. Geologists have not only studied in detail the known plagiogranites, but also reported some new plagioclase Rock area (Baltic region, Far East, etc.).