Journal of South American Earth Sciences - 39, 2012

Contents:

Editorial Board

Geochronological correlation of the main coal interval in Brazilian Lower Permian: Radiometric dating of tonstein and calibration of biostratigraphic framework
Margarete Wagner Simas, Margot Guerra-Sommer, Miriam Cazzulo-Klepzig, Rualdo Menegat, Joao Orestes Schneider Santos, José Alcides Fonseca Ferreira, Isabela Degani-Schmidt

Footprints of large theropod dinosaurs and implications on the age of Triassic biotas from Southern Brazil
Rafael Costa da Silva, Ronaldo Barboni, Tânia Dutra, Michel Marques Godoy, Raquel Barros Binotto

Contrasted crustal sources as defined by whole-rock and Sr–Nd–Pb isotope geochemistry of neoproterozoic early post-collisional granitic magmatism within the Southern Brazilian Shear Belt, Camboriú, Brazil
Luana Moreira Florisbal, Valdecir de Assis Janasi, Maria de Fátima Bitencourt, Lauro Valentim Stoll Nardi, Larry M. Heaman

Radium mass balance and submarine groundwater discharge in Sepetiba Bay, Rio de Janeiro State, Brazil
Joseph M. Smoak, Christian J. Sanders, Sambasiva R. Patchineelam, Willard S. Moore

Presence of the extinct sawfish, Onchosaurus (Neoselachii, Sclerorhynchiformes) in the Late Cretaceous of Peru with a review of the genus
Jürgen Kriwet, Stefanie Klug

Whole-rock geochemistry and Sr–Nd isotopic composition of the pre-rift sequence of the Camamu Basin, northeastern Brazil
D.R.A. Silva, A.M.P. Mizusaki, E.J. Milani, M. Pimentel, K. Kawashita

Tectonic and climatic shaping of the northern Andes and southern Caribbean margin
German Bayona, Brian K. Horton, Andrés Reyes-Harker

Tectonostratigraphy of the Cenozoic Tumaco forearc basin (Colombian Pacific) and its relationship with the northern Andes orogenic build up
Carlos Borrero, Andrés Pardo, Carlos Marcelo Jaramillo, Jairo Alonso Osorio, Agustín Cardona, Abel Flores, Sebastián Echeverri, Sebastián Rosero, Jenny García, Hardany Castillo

The paleogene synorogenic succession in the northwestern Maracaibo block: Tracking intraplate uplifts and changes in sediment delivery systems
R.C. Ayala, G. Bayona, A. Cardona, C. Ojeda, O.C. Montenegro, C. Montes, V. Valencia, C. Jaramillo

The asymmetric evolution of the Colombian Eastern Cordillera. Tectonic inheritance or climatic forcing? New evidence from thermochronology and sedimentology
Juan Carlos Ramirez-Arias, Andrés Mora, Jorge Rubiano, Ian Duddy, Mauricio Parra, Nestor Moreno, Daniel Stockli, Wilson Casallas

Linked basin sedimentation and orogenic uplift: The Neogene Barinas basin sediments derived from the Venezuelan Andes
Johan P. Erikson, Shari A. Kelley, Peter Osmolovsky, Kenneth L. Verosub

The final phase of tropical lowland conditions in the axial zone of the Eastern Cordillera of Colombia: Evidence from three palynological records
D. Ochoa, C. Hoorn, C. Jaramillo, G. Bayona, M. Parra, F. De la Parra

Paleoenvironmental reconstruction for the lower Pliocene Arroyo Piedras section (Tubará – Colombia): Implications for the Magdalena River – paleodelta’s dynamic
C.E. Molinares, J.I. Martinez, F. Fiorini, J. Escobar, C. Jaramillo

Analysis of curved folds and fault/fold terminations in the southern Upper Magdalena Valley of Colombia
Giovanny Jiménez, John Rico, German Bayona, Camilo Montes, Alexis Rosero, Daniel Sierra
    
Structural and thermochronological evidence for Paleogene basement-involved shortening in the axial Eastern Cordillera, Colombia
Joel E. Saylor, Brian K. Horton, Daniel F. Stockli, Andrés Mora, Jaime Corredor

Three-dimensional structural evolution and kinematics of the Piedemonte Llanero, Central Llanos foothills, Eastern Cordillera, Colombia
Obi Egbue, James Kellogg

Deformation partitioning in the Llanos foreland basin during the Cenozoic and its correlation with mountain building in the hinterland
Andrea Delgado, Andrés Mora, Andrés Reyes-Harker

3D geological modeling of the Trujillo block: Insights for crustal escape models of the Venezuelan Andes
Damien Dhont, Bernard Monod, Yves Hervouët, Guillaume Backé, Stéphanie Klarica, José E. Choy

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