PIRES Sr, Fernando R.M.¹, FRANÇA Sr, Ailton B.², FRANCO, Jamile², GOMES, Ana Angélica² and LIMA, Raquel Aparecida², (1)Mineral Exploration - INB, Brazilian Nuclear Industry, Rua Gilberto Cardoso, 230/902, Rio de Janeiro, 22430-070, Brazil, (2)Mineral Exploration - INB, Brazilian Nuclear Industry, Rua Mena Barreto, 161 Botafogo, Rio de Janeiro, 22271-100, Brazil, frmpires@yahoo.com, frmpires@yahoo.com

APPOLD, Martin S., Department of Geological Sciences, University of Missouri--Columbia, 101 Geological Sciences Bldg, Columbia, MO 65211, appoldm@missouri.edu, appoldm@missouri.edu

MCCLUNG, Craig R. and VILJOEN, Fanus, Department of Geology, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa, crmcclung@uj.ac.za, crmcclung@uj.ac.za

GUMIEL, Pablo¹, ARIAS, Mónica², MARTÍN-IZARD, Agustín³, PALERO, Fernando⁴, BELLIDO, Félix⁵, SÁNCHEZ, Teresa⁶, ORDOÑEZ, Berta³ and LOCUTURA, Juan⁵, (1)Recursos Minerales, Instituto Geológico y Minero de España (IGME), Departamento de Geología, Universidad de Alcalá, Rios Rosas, 23, Madrid, 28003, Spain, (2)Departamento de Geología, Universidad de Alcalá, Facultad de Ciencias, Alcalá de Henares, 28871, Spain, (3)Departamento de Geología, Universidad de Oviedo, C/ Arias de Velasco s/n, Oviedo, 33005, Spain, (4)Departamento de Geología e Ingeniería de Minas, Universidad de Castilla- La Mancha, Almadén, 13400, Spain, (5)Recursos Minerales, Instituto Geológico y Minero de España (IGME), Rios Rosas, 23, Madrid, 28003, Spain, (6)Geología, Instituto Geológico y Minero de España (IGME), Rios Rosas, 23, Madrid, 28003, Spain, pablo.gumiel@uah.es, pablo.gumiel@uah.es

NOWAK, Robert M., KELLY, Nigel M. and MONECKE, Thomas, Department of Geology and Geological Engineering, Colorado School of Mines, 1516 Illinois Street, Golden, CO 80401, rnowak@mines.edu, rnowak@mines.edu

DONOGHUE, Kellie, Geological Sciences, Indiana University, 1005 E 10th Street, Bloomington, IN 47405 and RIPLEY, Edward M., Department of Geological Sciences, Indiana Univ, 1001 East 10th St, Bloomington, IN 47405, kdonoghu@indiana.edu, kdonoghu@indiana.edu

ROSENBERG, Philip E., School of Earth and Environmental Sciences, Washington State University, Pullman, WA 99164 and RAMOS, Frank C., Department of Geological Sciences, New Mexico State University, Las Cruces, NM 88003, rosenberg@wsu.edu, rosenberg@wsu.edu

SMITH, Christopher N., Thermo Fisher Scientific, 900 Middlesex Turnpike Bldg. 8, Billerica, MA 01821, chris.n.smith@thermofisher.com, chris.n.smith@thermofisher.com