Carbon and oxygen isotope geochemistry of Ediacaran outer platform carbonates, Paraguay Belt, central Brazil

by Claudio Riccomini, Afonso C.R. Nogueira, Alcides N. Sial
Published 2007-09-01

Carbonate cements in contemporaneous beachrocks, Jaguaribe beach, Itamaracá island, northeastern Brazil: petrographic, geochemical and isotopic aspects

by Núbia C. Guerra, Chang H. Kiang, Alcides N. Sial
Published 2005-06-01

Acritarchs of the Ediacaran Frecheirinha Formation, Ubajara Group, Northeastern Brazil

by Leticia Chiglino, Claudio Gaucher, Alcides N. Sial, Valderez P. Ferreira
Published 2015-06-01

Oxygen isotopes internal equilibrium in magmatic epidote-bearing granitoids

by VALDEREZ P. FERREIRA, JOHN W. VALLEY, ALCIDES N. SIAL, MICHAEL J. SPICUZZA
Published 2002-09-01

C- and Sr-isotope stratigraphy of the São Caetano complex, Northeastern Brazil: a contribution to the study of the Meso-Neoproterozoic seawater geochemistry

by Juan C. Silva, Alcides N. Sial, Valderez P. Ferreira, Márcio M. Pimentel
Published 2005-03-01

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

Oceanographic parameters in continental margin of the State of Ceará (northeastern Brazil) deduced from C and O isotopes in foraminifers

by Wanessa S. Marques, Eldemar de A. Menor, Alcides N. Sial, Valdir A.V. Manso, Satander S. Freire
Published 2007-03-01

C-, Sr-isotope stratigraphy of carbonate rocks from the Southern Espinhaço Ridge, Minas Gerais, southeastern Brazil

by LUCIO M.S. FRAGA, SORAYA C. NEVES, ALEXANDRE UHLEIN, ALCIDES N. SIAL, MARCIO M. PIMENTEL, ADOLF H. HORN
Published 2014-06-01

delta13C fluctuations in precambrian to cambrian carbonate sequences in NE Brazil and NW Argentina

by Alcides N. Sial, Valderez P. Ferreira, Alejandro J. Toselli, Florencio G. Aceñolaza, Ricardo Alonso, Miguel A. Parada
Published 2000-12-01

Carbon and strontium isotope record on the vendian-tommotian transition in the NW Argentina

by ALCIDES N. SIAL, VALDEREZ P. FERREIRA, MÁRCIO M. PIMENTEL, ALEJANDRO J. TOSELLI, FLORENCIO G. ACENOLAZA, RICARDO N. ALONSO, MIGUEL A. PARADA
Published 2001-09-01

Coral-based climate records from tropical South Atlantic: 2009/2010 ENSO event in C and O isotopes from Porites corals (Rocas Atoll, Brazil)

by Natan S. Pereira, Alcídes N. Sial, Ruy K.P. Kikuchi, Valderez P. Ferreira, Clemens V. Ullmann, Robert Frei, Adriana M.C. Cunha
Published 2015-12-01

Goldilocks at the dawn of complex life: mountains might have damaged Ediacaran–Cambrian ecosystems and prompted an early Cambrian greenhouse world

by Fabricio Caxito, Cristiano Lana, Robert Frei, Gabriel J. Uhlein, Alcides N. Sial, Elton L. Dantas, André G. Pinto, Filippe C. Campos, Paulo Galvão, Lucas V. Warren, Juliana Okubo, Carlos E. Ganade
Published 2021-10-01