Basaltoid

The Grenville state (1,500-1,000 million years ago) is related to the start of a new geosynclinal period dominated by basaltoid vocanicity from which the pyrite-polymetallic deposits of Sullivan type in Canada originate.

Regarding basaltoids, resistance to atmospherical conditions is critical.

Comparison of microelement compositions of basaltoids of Saralinsky graben and Goryachegorsk volcanic plateau shows a similarity of rare and trace elements distribution, but REE contents in subvolcanic basaltoids of Goryachegorsk plateau are intermediate between high and low contents in enriched and depleted basaltoids of Saralinsky graben.