Specific porphyraceous biotite-amphibole granites considered rapakivi-like according to texture and rock and mineral compositions have been distinguished among granitoids in the eastern Hovsgol region. The granites are ...
The Kiya alkalic pluton lies on the western part of the Yenisey Ridge at the center of the Chernorechensk graben. It is confined to a zone of intersecting deep faults with northwest and northeast strikes. For isotopic ...
There always are considerable difficulties in accurately establishing the genetic relationship between ore deposition and magmatic activity. The ore-bearing igneous complexes of the Northeast are no exception in this ...