Suggested citation and version history for Parfenov, L.M., Badarch, G., Berzin, N.A., Hwang, D.H., Khanchuk, A.I., Kuzmin, M.I., Nokleberg, W.J., Obolenskiy, A.O., Ogasawara, M., Prokopiev, A.V., Rodionov, S.M., Smelov, A.P., and Yan, H., 2007, Introduction to regional geology, metallogenesis, and tectonics of Northeast Asia: U.S. Geological Survey Open-File Report 2007-1183-A, 58 p. [http://pubs.usgs.gov/of/2007/1183/a/]. Version 1.0 October 18, 2007 Initial release online at http://pubs.usgs.gov/of/2007/1183/a/