Results 11 to 20 of about 62 (50)

An Integrated Structural and Magnetic Fabric Study to Constrain the Progressive Extensional Tectonics of the Rio do Peixe Basin, Brazil

Tectonics, Volume 41, Issue 10, October 2022., 2022
Abstract We constrained the tectonic evolution of the intracratonic Cretaceous Rio do Peixe Basin (RPB) in NE Brazil, combining structural and Anisotropy of Magnetic Susceptibility (AMS) data. We analyzed the structural features of four sites along two major faults bordering the basin, the NE‐striking Portalegre Fault and the E‐W‐striking Malta Fault ...
M. A. Nicchio, F. Balsamo, F. Cifelli, F. C. C. Nogueira, L. Aldega, F. H. R. Bezerra, D. L. Vasconcelos, J. A. B. Souza   +7 more
wiley   +1 more source

Influence of Zones of Pre‐Existing Crustal Weakness on Strain Localization and Partitioning During Rifting: Insights From Analog Modeling Using High‐Resolution 3D Digital Image Correlation

Tectonics, Volume 40, Issue 10, October 2021., 2021
Abstract Pre‐existing crustal structures are known to influence rifting, but the factors controlling their influence remain poorly understood. We present results of digital image correlation that allows for the surface strain analysis of a series of analog rifting experiments designed to test the influence of the size, orientation, depth, and geometry ...
Edoseghe E. Osagiede, Matthias Rosenau, Atle Rotevatn, Rob Gawthorpe, Christopher A‐L Jackson, Michael Rudolf   +5 more
wiley   +1 more source

Insights into tectonic reactivation and landscape development processes at the Paraná Basin border using integrated geomorphometric and radiometric analyses

Brazilian Journal of Geology, 2020
In the Bom Jardim de Goiás region, the Transbrasiliano Lineament shows evidence of a fault reactivation along NE-SW structures (main direction) and secondary directions related to subsequent events.
Alexandre Messias Reis, Julia Barbosa Curto Ma, Hildor José Seer   +2 more
doaj   +1 more source

Lithospheric Architecture of the Paranapanema Block and Adjacent Nuclei Using Multiple‐Frequency P‐Wave Seismic Tomography

Journal of Geophysical Research: Solid Earth, Volume 126, Issue 4, April 2021., 2021
Abstract We present a new P‐wave seismic tomographic model for the region of the Paraná Basin and surroundings using a multiple‐frequency approach, providing better resolution than previous regional studies. We processed a total of 62,692 cross‐correlation delays for P, PKIKP, PcP, and PP phases distributed among 1,081 events using six different ...
G. M. P. C. Affonso, M. P. Rocha, I. S. L. Costa, M. Assumpção, R. A. Fuck, D. F. Albuquerque, D. E. Portner, E. E. Rodríguez, S. L. Beck   +8 more
wiley   +1 more source

Errata

Geologia USP. Série Científica, 2015
ERRATA Revista: Geologia USP – Série Científica, V. 15 n. 2, p. 57 (referências) Curto, J. B., Vidotti, R. M., Fuck, R. A. R., Blakely, J., Alvarenga, C. J. S., Dantas, E. L. (2014).
Editor Editor
doaj   +1 more source

The 2009 earthquake, magnitude mb 4.8, in the Pantanal Wetlands, west-central Brazil

Anais da Academia Brasileira de Ciências, 2016
The main goal of this paper is to characterize the Coxim earthquake occurred in June 15th, 2009 in the Pantanal Basin and to discuss the relationship between its faulting mechanism with the Transbrasiliano Lineament.
FÁBIO L. DIAS, MARCELO ASSUMPÇÃO, EDNA M. FACINCANI, GEORGE S. FRANÇA, MARIO L. ASSINE, ANTÔNIO C. PARANHOS FILHO, ROBERTO M. GAMARRA   +6 more
doaj   +1 more source

GRAVITY AND MAGNETIC SIGNATURE OF THE TRANSBRASILIANO LINEAMENT IN THE EAST-CENTRAL PORTION OF THE PARNAÍBA BASIN, NORTHEASTERN BRAZIL

Revista Brasileira de Geofísica, 2017
ABSTRACT. The Transbrasiliano Lineament (TBL) corresponds to a NE-trending mega shear zone of late Neoproterozoic age with an extensive segment underneath the Parnaíba Basin (northeastern Brazil); the Eopaleozoic to Mesozoic section of the basin evidence the lineament’s brittle reactivation events.
Thuany Patrícia Costa de Lima, Emanuel Ferraz Jardim de Sá, Fernando Antonio Pessoa Lira Lins, Alex Francisco Antunes, José Antônio De Morais Moreira   +4 more
openaire   +2 more sources

Morphostructural aspects of the sandstone karst in Northeastern Brazil: Example from Serra da Capivara – PI

Revista Brasileira de Geomorfologia
This work analyses morphostructural aspects and their influence on the development of the karst relief of Serra da Capivara (State of Piauí, northeastern Brazil).
Mickaelle Braga da Silva, Rubson Pinheiro Maia   +1 more
doaj   +1 more source

Investigation of Archean gamma-ray fingerprint: Methodology and tectonic application in central Brazil

Journal of the Geological Survey of Brazil
Gamma-ray spectrometric responses of Archean rocks were studied in order to define a characteristic signature for these rocks. As the half-life of the most frequent Thorium isotope (232Th – half life of 14.05 Ga) is more than 3 times longer relative to ...
Marcus Flavio Nogueira Chiarini, Loiane Gomes de Moraes, Elton Luiz Dantas, Reinhardt Adolfo Fuck, Elias Prado, Raphael Teixeira Corrêa, Jaime Scandolara, Antônio Frasca, Joseneusa Rodrigues, Andre Menezes Saboia   +9 more
doaj   +1 more source

Ductile Extrusion Triggered by Continental Collision in NE Brazil

Terra Nova, Volume 38, Issue 4, Page 266-277, August 2026.
ABSTRACT The Borborema Province in northeastern Brazil hosts one of the world's largest strike‐slip shear zone networks, active during the late Neoproterozoic assembly of West Gondwana. Whether these shear zones initiated during active continental collision or as a post‐orogenic response to far‐field stresses remains debated.
L. R. Tesser, C. E. Ganade, C. R. Cioffi, J. B. Forshaw, M. Hueck, E. Celis, M. A. S. Basei   +6 more
wiley   +1 more source