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Your search keyword '"Peter G. DeCelles"' showing total 2 results
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1. Structural and thermochronologic constraints on kinematics and timing of inversion of the Salta rift in the Tonco-Amblayo sector of the Andean retroarc fold-thrust belt, northwestern Argentina

Author

Barbara Carrapa, Cullen D. Kortyna, and Peter G. DeCelles

Subjects
Paleontology, Rift, Inversion (geology), Thrust, Fold (geology), Kinematics, Geologic map, human activities, Geology, Cretaceous, Nappe
Abstract

Inherited architecture of the Cretaceous Salta rift is a primary influence on Andean deformation in northwestern Argentina. The Tonco-Amblayo thrust belt (TATB) of the Eastern Cordillera exhibits a complex interplay between thick-skinned and thin-skinned shortening styles, controlled by reactivated Salta rift normal faults. Geological mapping, cross-sections, and apatite (U-Th)/He dating document Miocene shortening and exhumation. Regional structures comprise basement-involved reverse faults and steep-overturned fault-propagation folds. Inversion of east-dipping normal faults results in a hindward verging back-thrust belt. Apatite (U-Th)/He data document eastward younging cooling ages from ~ 12 Ma to ~ 6 Ma, suggesting that deformation propagated forward. Kinematic models require structure at depth to accommodate changes in structural elevation and basement shortening. Basement wedging, by a single thrust sheet or passive-roof duplex, provides a kinematically viable model. Shortening in the Eastern Cordillera is ~ 36% (53 km). Revised total shortening (~ 118 km) falls short of solving shortening discrepancies suggested by crustal thickness.

Published
2019

2. Contributors

Author

Gemma Acosta, Ariel Almendral, Orlando Álvarez, Inés Aramendía, María Alejandra Arecco, Juan P. Ariza, C. Arriagada, Pedro Arriola, Pilar Ávila, Patrice Baby, Vanesa Barberón, Stéphanie Brichau, Ysabel Calderon, Mauricio Calderón, Gabriela Beatriz Franco Camelio, Horacio N. Canelo, Victor Carlotto, Barbara Carrapa, Ryan Cochrane, Gilda Collo, Eduardo Contreras-Reyes, Peter Copeland, Christian Creixell, Edward Cuipa, Federico M. Dávila, Peter G. DeCelles, Juan Díaz-Alvarado, A. Echaurren, Sebastián Echeverri, A. Encinas, Adrien Eude, Miguel Ezpeleta, Lucía Fernández Paz, D. Figueroa, Andrés Folguera, Gonzalo Galaz, Héctor P.A. García, Carmala N. Garzione, Sarah W.M. George, Matías C. Ghiglione, P. Giampaoli, Guido M. Gianni, Mario Gimenez, Johannes Glodny, E. Gobbo, Marcelo A. Gonzalez, E. Gabriela Gutiérrez, Camilo Higuera, Brian K. Horton, Sofía Iannelli, Lily J. Jackson, James N. Kellogg, Keith A. Klepeis, Federico Lince Klinger, Cullen Kortyna, Thomas J. Lapen, F. Lince-Klinger, Vanesa D. Litvak, C. López, Melanie Louterbach, Leonard Luzieux, Federico Martina, Myriam P. Martinez, F. Martínez, Joseph Martinod, Ezequiel García Morabito, Héctor Mora-Páez, Federico Moreno, Francisco Sánchez Nassif, C. Navarrete, Julieta C. Nóbile, Paul O’Sullivan, Soty Odoh, Verónica Oliveros, G. Olivieri, Sebastián Correa Otto, Mauricio Parra, Ana María Patiño, A. Paul, Mark Pecha, Stefanie Pechuan, Agustina Pesce, Stella Poma, Alice Prudhomme, Juan Carlos Ramírez, Miguel E. Ramos, Alexandra Robert, E. Rocha, E.A. Rojas Vera, Christian Romero, Gonzalo Ronda, Marcos A. Sánchez, Joel E. Saylor, Edward R. Sobel, Santiago R. Soler, Richard A. Spikings, Rodrigo J. Suárez, Christian Sue, Kurt Sundell, Tonny B. Thomsen, Jonathan Tobal, Cristian Vallejo, Roelant Van der Lelij, D. Villagomez, Laura E. Webb, Wilfried Winkler, and Gonzalo Zamora

Published
2019

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