Vendian and Silurian Ophiolite-Formation Stages on the Eastern Slope of the Middle Urals

摘要

In his works published in the early 20th century, H. Steinman characterized ophiolites as a genetic association of peridotites, gabbro, dolerites, and basalts. The Penrose Conference held in 1972 contributed much to generalization of available materials and solution of problems related to the origin, composition, and structure of the ophiolitic association. At this meeting, it was suggested to consider ophiolites as fragments of the oceanic crust and include the ultra-mafic, gabbroid, doleritic (basic complex of sheeted dikes), and basaltic complexes into this association [1].