Be-and Emerald Deposits of the Central Urals (Russia): Conditions of Formation

The Be- and emerald deposits of the Emerald Mines region, in the central part of the Upper-Paleozoic Uralian orogen (Russia), are related to a major shear zone of N-S direction, where both Be-rich S-type granitoids (Carboniferous to Permian) and Cr-rich rocks (ophiolitic dunites and peridotes, Silurian to Devonian) are present.

A new Silurian phyllopodous crustacean / by Sharat Kumar Roy --.

v.6:no.9(1935)

A new Devonian trilobite from southern Illinois / by Sharat Kumar Roy --

v.6:no.4(1933)

Eurypterids of the Devonian Holland Quarry shale of Ohio / Erik N. Kjellesvig-Waering --

v.14:no.5(1961)

Middle Devonian fishes from the Lemhi Range of Idaho / [by] Robert H. Denison --

v.16:no.10(1968)

Large Upper Devonian arthrodires from Iran / Hans-Peter Schultze --

v.23:no.5(1973)

New Silurian Heterostraci from southeastern Yukon / Robert H. Denison. Intro. by H.R. Hovdebo, A.C. Lenz [and] E.W. Bamber.

v.14:no.7(1963)