Geochemical studies of rare earth elements in the Portuguese Pyrite Belt, and geologic and geochemical controls on gold distribution

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 Portugal Serviço de Fomento Mineiro. Serviços Geológicos de Portugal text bibliography dcu Washington Denver, CO U.S. G.P.O. For sale by U.S. Geological Survey, Information Services 1998 monographic eng iv, 40 p. ill. 28 cm. edited by David J. Grimes and S.J. Kropschot. "Prepared with the support and cooperation of the Luso American Development Foundation, the Serviços Geológicos de Portugal, and the Serviço de Fomento Mineiro." Two folded plates in pocket. Includes bibliographical references (p. 28-29). e-po--- Geochemistry Portugal Gold ores Portugal Rare earth metals Portugal QE516.R2 G435 1998 553.4/94/09469 I 19.16:1596 I 19.16:1596 98010121 DLC 980116 20160527200125.0 218467