TY  - RPRT
TI  - 2.8-Ma ash-flow caldera at Chegem River in the northern Caucasus Mountains (Russia), contemporaneous granites, and associated ore deposits
AU  - P. W. Lipman
AU  - O.A. Bogatikov
AU  - A.A. Tsvetkov
AU  - C. Gazis
AU  - A.G. Gurbanov
AU  - K. Hon
AU  - N.V. Koronovsky
AU  - V.I. Kovalenko
AU  - P. Marchev
PY  - 1993
UR  - https://pubs.usgs.gov/publication/70017359
ID  - 70017359
ER  -