RARE EARTH ELEMENTS IN THE ROCKS OF THE GERANSKIY ANORTHOSITE PLUTON

Abstract

Analysis of the distribution of REE in the rocks of the Geranskiy pluton suggests the following: 1) in comparison with anorthosites of autonomous type in other regions [9, 11], the rocks of the Geranskiy pluton differ in their higher REE contents and in this respect are closest to anorthosites of the anorthosite-granite association [10], 2) it confirms the existence of a latent internal layering of the series of anorthosites of the main phase, which crystallized from high-alumina melts and at first glance appear to be uniform.