From microanalysis to supercontinents: insights from the Rio Apa Terrane into the Mesoproterozoic SW Amazonian Craton evolution during Rodinia assembly
Deciphering the tectono‐metamorphic evolution of Precambrian terranes can be difficult due
to reworking by later superimposed events. Whole‐rock elemental and isotopic …
to reworking by later superimposed events. Whole‐rock elemental and isotopic …
Adjoint waveform tomography of South America
We used 3D spectral‐element seismic wave simulations and data from 112 earthquakes
and 1,311 seismic stations, totalizing 20,884 unique ray paths, to construct an adjoint …
and 1,311 seismic stations, totalizing 20,884 unique ray paths, to construct an adjoint …
Lithospheric Structure Of The Paraná, Chaco-Paraná, And Pantanal Basins: Insights From Ambient Noise And Earthquake-Based Surface Wave Tomography
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 …
Paraná, Chaco-Paraná, and Pantanal basins, we measure two distinct sets of dispersion …
[HTML][HTML] An exotic Cretaceous kimberlite linked to metasomatized lithospheric mantle beneath the southwestern margin of the São Francisco Craton, Brazil
We present major and trace element compositions of mineral concentrates comprising
garnet xenocrysts, ilmenite, phlogopite, spinel, zircon, and uncommon minerals (titanite …
garnet xenocrysts, ilmenite, phlogopite, spinel, zircon, and uncommon minerals (titanite …
Lithospheric Architecture of the Paranapanema Block and Adjacent Nuclei Using Multiple‐Frequency P‐Wave Seismic Tomography
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 …
and surroundings using a multiple‐frequency approach, providing better resolution than …
Mantle dynamics of the Andean Subduction Zone from continent-scale teleseismic S-wave tomography
SUMMARY The Andean Subduction Zone is one of the longest continuous subduction
zones on Earth. The relative simplicity of the two-plate system has makes it an ideal natural …
zones on Earth. The relative simplicity of the two-plate system has makes it an ideal natural …
[HTML][HTML] Unwrapping reworked crust at the Columbia supercontinent margin within central southern Amazon Craton using multi-source geophysics and geochronology …
The geometry and evolution of pre-existing basement in accretionary belts bordering
supercontinents are often unclear. Integrative interpretation of long-wavelength potential …
supercontinents are often unclear. Integrative interpretation of long-wavelength potential …
New perspectives on the tectonic evolution of the eastern Paraguay Belt revealed through zircon U-Pb-Hf-O systematics of the inner units
Abstract The Paraguay Belt and Brasília Orogen, the western and eastern segments of the
Tocantins Province, respectively, recorded the interactions among the Amazonian, São …
Tocantins Province, respectively, recorded the interactions among the Amazonian, São …
Ambient seismic noise tomography in west-central and Southern Brazil, characterizing the crustal structure of the Chaco-Paraná, Pantanal and Paraná basins
T Shirzad, M Assumpcao… - Geophysical Journal …, 2020 - academic.oup.com
Surface wave analysis provides important information on crustal structure, but it is
challenging to obtain accurate/robust models in aseismic regions because of the lack of …
challenging to obtain accurate/robust models in aseismic regions because of the lack of …
Rayleigh wave group velocity maps at periods of 10–150 s beneath South America
AVS Nascimento, GS França… - Geophysical Journal …, 2022 - academic.oup.com
Based on new data from permanent and temporary networks, we present fundamental mode
Rayleigh wave group velocity maps at periods of 10–150 s related to the lithosphere …
Rayleigh wave group velocity maps at periods of 10–150 s related to the lithosphere …