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Paraguay Belt

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Journal Article
Journal: GSA Bulletin
Published: 01 January 2015
GSA Bulletin (2015) 127 (1-2): 76-86.
...Ben McGee; Alan S. Collins; Ricardo I.F. Trindade; Justin Payne Abstract The Paraguay Belt in central South America developed in response to the collision of the Amazonian craton, the São Francisco craton, and the Paranapanema block. The alleged “Brasiliano” age (ca. 620 Ma) of orogenesis has...
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Tectonic model for the evolution of the <b>Paraguay</b> <b>Belt</b>. (A) Initiation of co...
Published: 01 January 2015
Figure 6. Tectonic model for the evolution of the Paraguay Belt. (A) Initiation of compression, resulting in flexural warping of the lithosphere and deposition of the Raizama Formation into the proto-foredeep basin. (B) Continued lithospheric flexure and deepening of the foredeep basin. (C
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Geological map of domains of <b>Paraguai</b> <b>Belt</b>; stars show location of geochron...
in > Geology
Published: 01 March 2010
Figure 2. Geological map of domains of Paraguai Belt; stars show location of geochronology samples. A: Northern domain. B: Southern domain.
Journal Article
Journal: Geology
Published: 01 March 2010
Geology (2010) 38 (3): 267-270.
...Figure 2. Geological map of domains of Paraguai Belt; stars show location of geochronology samples. A: Northern domain. B: Southern domain. ...
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Series: Geological Society, London, Special Publications
Published: 01 January 2008
DOI: 10.1144/SP294.11
EISBN: 9781862395428
... followed, such as those in the Borborema–Trans-Saharan province ( c. 0.62–0.60 Ga); in the Ribeira–Araçuaí belt ( c. 0.58 Ga); along the Araguaia and Paraguay belts (collision of Amazonia, c. 0.54–0.52 Ga); and the accretion of Cabo Frio terrane in the Ribeira Belt ( c. 0.53–0.50 Ga...
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Journal Article
Journal: Geology
Published: 01 April 2001
Geology (2001) 29 (4): 319-322.
... the São Francisco–Congo craton caused the eastward extrusion of the Borborema province. The final stage of West Gondwana assembly closed a basin between the Rio de la Plata and Amazonia cratons and created the Paraguai belt. On the basis of the sequence of events described here, we suggest...
FIGURES
Series: GSA Special Papers
Published: 01 January 2007
DOI: 10.1130/2007.2423(27)
... Argentina, and a crystalline basement suite of metamorphic rocks (18%) and magmatic (mainly plutonic) rocks (20%). Due to the absence of typical lithologies, the Brazilian Shield, the Paraguay belt, and the southern Arequipa-Antofalla block could be excluded as possible source areas. The crystalline...
Series: GSA Special Papers
Published: 01 January 2007
DOI: 10.1130/2007.2430(29)
... Paranaíba; 3—Cabo Frio; 4—Serra do Mar; 5—Ponta Grossa; 6—Anitápolis and Lages; 7—Piratiní; 8—Valle Chico; 9—Paraguay; 10—Kwanza basin, Angola; 11—Moçâmedes arch, Angola; 12—Virilundo, Angola; 13—Damara belt, Namibia; 14—Blue Hills, Namibia; 15—Dicker Willem Complex, Namibia. Potassic...
Journal Article
Journal: Palynology
Published: 01 January 2002
Palynology (2002) 26 (1): 135-165.
...-basin in the south (Text-Fig. 1 ). Marine communication between the two sub-basins, and the “East Paraguay” Sub-basin, was present during the early Givetian ( Melo, 1988 ; Pereira and Bergamaschi, 1996 ). Middle and/or Upper Devonian rocks are exposed in narrow belts on the north–northwestern...
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Journal Article
Journal: Palynology
Published: 01 January 2000
Palynology (2000) 24 (1): 147-176.
... ). There are also more lithological similarities between the Alto Garças and “East Paraguay” sub-basins, than between the former and the Apucarana Sub-basin. Silurian and Early Devonian rocks crop out in narrow belts east and southeast of Asunción in east Paraguay, on the east margin of the Apucarana Sub-basin...
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Journal Article
Journal: Geology
Published: 01 August 2012
Geology (2012) 40 (8): 691-694.
... of the Itapucumí Group in the Vallemí region, northern Paraguay: Evidence of a new Brasiliano/Pan-African mobile belt : Journal of South American Earth Sciences , v. 30 , p. 1 – 11 , doi:10.1016/j.jsames.2010.04.001 . Chapman D.M. Werner B. , 1972 , Structure of a solitary and a colonial...
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Journal Article
Journal: Geology
Published: 01 June 2007
Geology (2007) 35 (6): 495-498.
...-alkaline metaluminous and peraluminous granitic magmatism ca. 530–514 Ma. The results suggest that the geological evolution of the Eastern Pampean Ranges took place between ca. 640 and 514 Ma, coeval with other Brasiliano orogens in Brazil (e.g., the Paraguay and Araguaia fold belts). In the central part...
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Series: Geological Society, London, Special Publications
Published: 01 January 2013
DOI: 10.1144/SP371.7
EISBN: 9781862396340
... carbonates within the São Francisco–Congo Craton and at the border of the Amazon Craton, along the Araguaia–Paraguay–Pampean Belt. From the late Permian to early Triassic, the San Rafaelic orogeny and the emplacement of the Choiyoi magmatic province was responsible for widespread remagnetizations...
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Journal Article
Journal: GSA Bulletin
Published: 01 June 1969
GSA Bulletin (1969) 80 (6): 1007-1042.
...LAWRENCE A FRAKES; JOHN C CROWELL Abstract Glacial activity is recorded in rocks of Early, Middle and Late Carboniferous and Early Permian(?) age in Argentina and Bolivia, and in Carboniferous and Permian(?) strata of the cratonic Parana basin in Brazil, Uruguay and Paraguay. Direct evidence...
Series: Geological Society, London, Special Publications
Published: 01 January 2009
DOI: 10.1144/SP326.16
EISBN: 9781862395749
... statement is the case of the sedimentary sequences involved in the Neoproterozoic orogenic belts (e.g. Paraguay Belt in the Corumbá Basin or the Brazilia Belt in the San Francisco Basin), which suffered a more intense deformation and were poorly preserved. Two tectonic styles can be recognized within...
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Journal Article
Published: 01 December 2016
Journal of Sedimentary Research (2016) 86 (12): 1359-1377.
... with aspects of geomorphic models for distributive fluvial systems. The Río Bermejo fully spans the foreland and connects with the south-flowing Río Paraguay; fluvial sediments and reworked loess bury and obscure any surficial expression of a flexural forebulge. Therefore, the Río Bermejo megafan (RBM) stands...
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Journal Article
Journal: Geology
Published: 01 April 2013
Geology (2013) 41 (4): 507-510.
... shell beds was determined more by the acquisition of hard parts than by environmental changes. The Itapucumí Group in northeastern Paraguay crops out within a marginal fold belt and partially covers the Rio Apa Block, a promontory of the Amazonian Craton ( Fig. 1A ). The group is 400 m thick...
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Journal Article
Published: 01 October 2003
Mineralogical Magazine (2003) 67 (5): 1039-1057.
... Cretaceous carbonatites from the Paraná basin. The latter carbonatites show a great isotopic variability ranging from Bulk Earth to the related potassic magmatism from Asunción-Sapucai graben in the Eastern Paraguay (K-ASU magmatism: ε t Sr = 35 to 50 and ε t Nd = −12 to −20). The very similar isotopic...
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Series: Geological Society, London, Special Publications
Published: 01 January 2008
DOI: 10.1144/SP294.16
EISBN: 9781862395428
... and Morro do Agostinho ophiolites and associated rocks. A review and comparison of geological data pertaining to the Braziliano (Araguaia–Paraguay) and Pan-African (Mauritanide–Rokelide, and perhaps Dahomeyide) belts reveals clear and partial similarities in lithostratigraphy, type of basement...
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Journal Article
Published: 19 January 2016
Canadian Journal of Earth Sciences (2016) 53 (11): 1177-1189.
... of the Clymene ocean: The upper Alto Paraguai Group, Paraguay belt, Brazil . Gondwana Research , 21 : 323 – 340 . 10.1016/j.gr.2011.04.006 . Brown, D., and Ryan, P.D. ( Editors ). 2011. Arc-Continent Collision. Springer-Verlag, Heidelberg (Germany), 493 p. Bugge , T. Befring , S. Belderson...
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