Characteristics, distribution and diagenetic stages of chert in the La Silla Formation (Lower Ordovician), Argentine Precordillera

by Mariana M. Raviolo, José A. Barbosa, Virgínio H. Neumann
Published 2009-12-01

The aeolian calcarenites of the Fernando de Noronha Island, Northeastern Brazil - a new approach

by ELDEMAR A. MENOR, LUCIA M. M. VALENÇA, VIRGINIO H. NEUMANN, ARMAND BOUJO
Published 2001-09-01

C and O Isotope Chemostratigraphy and Bulk Chemistry of Reef Limestones of the Tambaba Formation, Paraíba Basin, Northeastern Brazil

by José Diego D. Veras, Alcides N. Sial, Valderez P. Ferreira, Virgínio H. Neumann
Published 2020-01-01

Stratigraphic Relations of the Ipubi Formation: Siliciclastic-Evaporitic Succession of the Araripe Basin

by CARLOS E. FABIN, OSVALDO J. CORREIA FILHO, MÁRCIO L. ALENCAR, JOSÉ A. BARBOSA, TIAGO S. DE MIRANDA, VIRGÍNIO H. NEUMANN, IGOR F. GOMES, FELIPE R. DE SANTANA
Published 2018-06-01