Geochemical studies of rare earth elements in the Portuguese Pyrite Belt, and geologic and geochemical controls on gold distribution /
Grimes, D. J.(David J.),1943-
Kropschot, S. J.(Susan J.)
Luso-American Development Foundation.
Serviços Geológicos de Portugal.
Portugal.Serviço de Fomento Mineiro.
Geological Survey (U.S.)
Washington : U.S. G.P.O. ; Denver, CO : For sale by U.S. Geological Survey, Information Services,
1998.
"Prepared in cooperation with the Luso American Development Foundation, the Serviços Geológicos de Portugal, and the Serviço de Fomento Mineiro."
"U.S. Department of the Interior, U.S. Geological Survey"--T.p. verso.
Shipping list no.: 98-0289-P.
Two folded plates in pocket.
Includes bibliographical references (p. 28-29).
A. Rare earth element distribution in the volcanic lithostratigraphic units of the Portuguese Pyrite Belt / by David J. Grimes, Robert L. Earhart, and Delfim de Carvalho -- B. Geologic setting and geochemical controls on the distribution of gold in the Portuguese Pyrite Belt / by Robert L. Earhart ... [et al.].
Geochemistry
Rare earth metals
Gold ores