scholarly journals Fragments of juvenile Siderian continental crust in the Rio Piranhas-Seridó Domain, Borborema Province, Northeastern Brazil, as deduced by zircon U-Pb and whole-rock Sm-Nd systematics

2021 ◽  
Vol 4 (3) ◽  
pp. 223-237
Author(s):  
Alan Costa ◽  
◽  
Rogério Cavalcante ◽  
Alexandre Dantas ◽  
Joseneusa Rodrigues ◽  
...  
Keyword(s):  
Continental Crust ◽  
Northeastern Brazil ◽  
Borborema Province

Generation of continental crust in the northern part of the Borborema Province, northeastern Brazil, from Archaean to Neoproterozoic

2016 ◽  
Vol 68 ◽  
pp. 68-96 ◽  
Author(s):  
Zorano Sérgio de Souza ◽  
Feiko Kalsbeek ◽  
Xiao-Dong Deng ◽  
Robert Frei ◽  
Thomas Find Kokfelt ◽  
...  
Keyword(s):  
Continental Crust ◽  
Northeastern Brazil ◽  
Borborema Province

Unraveling sedimentary precursors and metal enrichment of high-grade metamorphosed manganese-rich rocks from the Borborema Province, northeastern Brazil

2021 ◽  
pp. 104283
Author(s):  
Felipe Holanda dos Santos ◽  
Wagner da Silva Amaral ◽  
Kurt Konhauser ◽  
Douglas Teixeira Martins ◽  
Marco Paulo de Castro ◽  
...  
Keyword(s):  
Northeastern Brazil ◽  
High Grade ◽  
Metal Enrichment ◽  
Borborema Province

scholarly journals Lithospheric and sublithospheric deformation under the Borborema Province of northeastern Brazil from receiver function harmonic stripping

Solid Earth ◽  
2019 ◽  
Vol 10 (3) ◽  
pp. 893-905 ◽  
Author(s):  
Gaelle Lamarque ◽  
Jordi Julià
Keyword(s):  
Lithospheric Mantle ◽  
Seismic Anisotropy ◽  
Receiver Function ◽  
Seismic Station ◽  
Atlantic Coast ◽  
Shear Zones ◽  
Receiver Functions ◽  
Azimuthal Anisotropy ◽  
Northeastern Brazil ◽  
Borborema Province

Abstract. The depth-dependent anisotropic structure of the lithosphere under the Borborema Province in northeast Brazil has been investigated via harmonic stripping of receiver functions developed at 39 stations in the region. This method retrieves the first (k=1) and second (k=2) degree harmonics of a receiver function dataset, which characterize seismic anisotropy beneath a seismic station. Anisotropic fabrics are in turn directly related to the deformation of the lithosphere from past and current tectonic processes. Our results reveal the presence of anisotropy within the crust and the lithospheric mantle throughout the entire province. Most stations in the continental interior report consistent anisotropic orientations in the crust and lithospheric mantle, suggesting a dominant northeast–southwest pervasive deformation along lithospheric-scale shear zones developed during the Brasiliano–Pan-African orogeny. Several stations aligned along a northeast–southwest trend located above the (now aborted) Mesozoic Cariri–Potiguar rift display large uncertainties for the fast-axis direction. This non-azimuthal anisotropy may be related to a complex anisotropic fabric resulting from a combination of deformation along the ancient collision between Precambrian blocks, Mesozoic extension and thermomechanical erosion dragging by sublithospheric flow. Finally, several stations along the Atlantic coast reveal depth-dependent anisotropic orientations roughly (sub)perpendicular to the margin. These results suggest a more recent overprint, probably related to the presence of frozen anisotropy in the lithosphere due to stretching and rifting during the opening of the South Atlantic.

Isotope geochemistry of Paleoproterozoic metacarbonates from Itatuba, Borborema Province, Northeastern Brazil: Evidence of marble melting within a collisional suture

2013 ◽  
Vol 23 (1) ◽  
pp. 380-389 ◽  
Author(s):  
Roberto Ventura Santos ◽  
Edilton J. dos Santos ◽  
João Adauto de Souza Neto ◽  
Luis Christian Montreuil Carmona ◽  
Alcides Nóbrega Sial ◽  
...  
Keyword(s):  
Isotope Geochemistry ◽  
Northeastern Brazil ◽  
Borborema Province

Electromagnetic Induction Studies in the Borborema Province and Adjacent Terrains, Northeastern Brazil: 2013-INCTET Progress Report

2013 ◽  
Author(s):  
Ícaro Vitorello ◽  
Antonio L. Padilha ◽  
A.C.L. Santos ◽  
Marcelo B. de Pádua ◽  
Sérgio L. Fontes ◽  
...  
Keyword(s):  
Electromagnetic Induction ◽  
Progress Report ◽  
Northeastern Brazil ◽  
Borborema Province

Intralithospheric differentiation and crustal growth: Evidence from the Borborema province, northeastern Brazil

Geology ◽  
2000 ◽  
Vol 28 (6) ◽  
pp. 519 ◽  
Author(s):  
Sérgio P. Neves ◽  
Gorki Mariano ◽  
Ignez P. Guimarães ◽  
Adejardo F. da Silva Filho ◽  
Silvana C. Melo
Keyword(s):  
Northeastern Brazil ◽  
Crustal Growth ◽  
Borborema Province

Magnetotelluric evidence for a Rhyacian suture zone hidden underneath the Seridó belt, Borborema Province, Northeastern Brazil

2021 ◽  
Vol 365 ◽  
pp. 106413
Author(s):  
Antonio L. Padilha ◽  
Andrea C.L. Santos-Matos ◽  
Joelson C. Batista ◽  
Ícaro Vitorello ◽  
Marcelo B. Pádua ◽  
...  
Keyword(s):  
Suture Zone ◽  
Northeastern Brazil ◽  
Borborema Province

The unregenerate São Rafael pluton, Borborema Province, Northeastern Brazil

Lithos ◽  
2019 ◽  
Vol 332-333 ◽  
pp. 192-206 ◽  
Author(s):  
Leon E. Long ◽  
Denise H. Ketcham ◽  
C. Mark Fanning ◽  
Alcides N. Sial
Keyword(s):  
Northeastern Brazil ◽  
Borborema Province

and geochronologic studies of the eastern Borborema Province, Northeastern Brazil: initial conclusions

1995 ◽  
Vol 8 (3-4) ◽  
pp. 267-288 ◽  
Author(s):  
W.R. Van Schmus ◽  
B.B. de Brito Neves ◽  
P. Hackspacher ◽  
M. Babinski
Keyword(s):  
Northeastern Brazil ◽  
Borborema Province

scholarly journals Nb–Ta–(Ti–Sn) oxide mineral chemistry as tracer of rare-element granitic pegmatite fractionation in the Borborema Province, Northeastern Brazil

2007 ◽  
Vol 43 (2) ◽  
pp. 207-228 ◽  
Author(s):  
Hartmut Beurlen ◽  
Marcelo R. R. Da Silva ◽  
Rainer Thomas ◽  
Dwight R. Soares ◽  
Patrick Olivier
Keyword(s):  
Mineral Chemistry ◽  
Northeastern Brazil ◽  
Granitic Pegmatite ◽  
Rare Element ◽  
Oxide Mineral ◽  
Borborema Province
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