The regional intraplate stress field in South America

M Assumpcao - Journal of Geophysical Research: Solid Earth, 1992 - Wiley Online Library
A compilation of lithospheric stress directions for continental South America and the inferred
major patterns of the regional intraplate stress field are presented. Stress orientations are …

Basement reactivation in a sub‐Andean foreland flexural bulge: The Pantanal wetland, SW Brazil

N Ussami, S Shiraiwa, JML Dominguez - Tectonics, 1999 - Wiley Online Library
The role of sub‐Andean foreland peripheral bulges in controlling sedimentary sequence
deposition and Quaternary geomorphology is discussed in the case of the Pantanal wetland …

Evidences of buried loads in the base of the crust of Borborema Plateau (NE Brazil) from Bouguer admittance estimates

RG de Oliveira, WE de Medeiros - Journal of South American Earth …, 2012 - Elsevier
In the Borborema Province (BP)–northeastern Brazil–two important Cenozoic events
occurred at the surface: the Macau magmatism and the Borborema Plateau epeirogenesis …

Explaining the thick crust in Paraná basin, Brazil, with satellite GOCE gravity observations

P Mariani, C Braitenberg, N Ussami - Journal of South American Earth …, 2013 - Elsevier
Seismologic observations in the last decades have shown that the crustal thickness in
Paraná basin locally is over 40 km thick, which is a greater value than expected by the …

The tectonic evolution of the Transbrasiliano Lineament in northern Paraná Basin, Brazil, as inferred from aeromagnetic data

JB Curto, RM Vidotti, RA Fuck… - Journal of …, 2014 - Wiley Online Library
Data from six airborne magnetic surveys were compiled and analyzed to develop a
structural interpretation for the Transbrasiliano Lineament in northern Paraná Basin, Brazil …

Lithospheric structure of the Paraná, Chaco-Paraná, and Pantanal basins: Insights from ambient noise and earthquake-based surface wave tomography

DS Moura, AVS Nascimento, CAM Chaves… - Journal of South …, 2024 - Elsevier
To investigate the lithospheric seismic structure of southern South America beneath the
Paraná, Chaco-Paraná, and Pantanal basins, we measure two distinct sets of dispersion …

Gravity map of Brazil: 2. Regional and residual isostatic anomalies and their correlation with major tectonic provinces

N Ussami, NC de Sá, EC Molina - Journal of Geophysical …, 1993 - Wiley Online Library
An isostatic residual gravity map of Brazil has been computed by removing from a 0.5°× 0.5°
Bouguer anomaly grid a regional gravity field calculated for compensating masses of …

[PDF][PDF] Geologia e aspectos petrológicos das rochas intrusivas e efusivas mesozóicas de parte da borda leste da Bacia do Paraná no estado de São Paulo

FB Machado - 2005 - repositorio.unesp.br
A investigação petrográfica e geoquímica das rochas intrusivas associadas à Província
Magmática do Paraná (PMP), na porção leste da Bacia do Paraná, no Estado de São Paulo …

Imaging three‐dimensional crustal conductivity structures reflecting continental flood basalt effects hidden beneath thick intracratonic sedimentary basin

AL Padilha, Í Vitorello, CE Antunes… - Journal of Geophysical …, 2015 - Wiley Online Library
A large‐scale array of long‐period magnetic data and a deep‐probing magnetotelluric
profile were recorded in the intracratonic Paraná sedimentary basin in central eastern South …

Density and P‐wave velocity structure beneath the Paraná Magmatic Province: Refertilization of an ancient lithospheric mantle

C Chaves, N Ussami, J Ritsema - Geochemistry, Geophysics …, 2016 - Wiley Online Library
We estimate density and P‐wave velocity perturbations in the mantle beneath the
southeastern South America plate from geoid anomalies and P‐wave traveltime residuals to …