Renata Da Silva Schmitt

Renata Da Silva Schmitt
Federal University of Rio de Janeiro | UFRJ · Departamento de Geologia

PhD

About

83
Publications
22,465
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1,041
Citations
Citations since 2016
54 Research Items
708 Citations
2016201720182019202020212022050100150
2016201720182019202020212022050100150
2016201720182019202020212022050100150
2016201720182019202020212022050100150
Introduction
Renata is a full professor at UFRJ, working with geodynamics of convergent tectonic settings, mostly structural and geochronological data from Neoproterozoic-Early Paleozoic orogens of Gondwana. Last decade, she has been focusing on prolongating offshore this orogenic mosaic, linking rift processes that generated the actual continental margins with collisional processes in deep time. Coordinating the IGCP-628, she managed to build up a new geological map of Gondwana at 1:5M.

Publications

Publications (83)
Preprint
Full-text available
Basin inversion is a process that takes place when a sedimentary basin is subjected to compressional stresses and may result in the reactivation of pre-existing faults and/or the localization of deformation along new reverse faults. The Araripe Basin (NE Brazil) is an example of a Cretaceous intracontinental aborted rift with its sedimentary infill...
Preprint
We present a new magnetic map integrating continental and oceanic features at Santos Basin, in order to investigate the connection between onshore and offshore tectonics and magmatism at the early stages of rifting. The magnetic and seismic data evidence the offshore continuity of the Florianópolis and Serra do Mar dyke swarms while the Ponta Gross...
Article
This study presents UPb dating of detrital zircons from sandstones of the Araripe basin (NE Brazil) assisting in the reconstruction of the Mesozoic paleogeography. In particular, we focus in the seaway connection between the Proto-Atlantic ocean and this intracontinental basin in northwest Gondwana.The new UPb age spectra of detrital zircon grains...
Article
This work investigates the pre-collisional (before ca. 650 Ma) history of the Dom Feliciano Belt in southernmost Brazil through geochronological and zircon oxygen isotope study. U-Pb SHRIMP dating of two orthogneiss samples from the Várzea do Capivarita Complex and one metarhyolite sample from the Porongos Complex yielded crystallisation ages of 78...
Article
The extensive magmatic record and the large network of shear zones are the most striking features in the Borborema Province (BP) northeast of Brazil. In this context, high-potassium magmatism (Itaporanga Suite) is one of the suites with the most significant expression and volume, usually related to a post-collisional period during the transition fr...
Article
Deeply eroded collisional orogens show complex structural and inverted stratigraphic relations with juxtaposition of rock stacks from distinct crustal levels, origins and ages, hence with contrasting P-T-t paths during convergent tectonics. This paper presents petrochronological data on Paleoproterozoic (basement) and Ediacaran (cover) gneisses tec...
Article
This work focuses on the 575–540 Ma meta-igneous units that crop out near Rio de Janeiro city, southeast Brazil. Tectonically, they are located in the southern part of the Oriental Terrane known as Costeiro Domain, near to the suture with the Cabo Frio Tectonic Domain. We present new zircon U-Pb and oxygen isotope SHRIMP along with geochemical data...
Article
Central and southern Madagascar comprise a number of distinctive Archaean crustal blocks (the Antongil-Masora and Antananarivo domains) overlain by Proterozoic supracrustal sequences, preserved in the East African Orogen. Here, we present U–Pb and Lu–Hf isotopic data for two supracrustal units from detrital and metamorphic zircon grains. The lower...
Article
Full-text available
Madagascar hosts several Paleoproterozoic sedimentary sequences that are key to unraveling the geodynamic evolution of past supercontinents on Earth. New detrital zircon U–Pb and Hf data, and a substantial new database of ∼15,000 analyses are used here to compare and contrast sedimentary sequences in Madagascar, Africa, and India. The Itremo Group...
Article
The rift phase of the Campos Basin developed during the Early Cretaceous on a heterogeneous crust comprising structures inherited from the Brasiliano‐Pan African tectonic events, mostly generated during the Neoproterozoic‐Cambrian amalgamation of western Gondwana blocks. The main rifting episode took place from the Hauterivian to the Barremian, the...
Article
Full-text available
Resumo A exposição "Gondwana: A Terra em Movimento", no Museu da Geodiversidade (MGeo), é fruto da divulgação do conhecimento científi co produzido pelo projeto acadêmico Revisão do Mapa Geológico do Gondwana (IGCP-628), em parceria UFRJ-PETROBRAS. Temas como a noção de tempo geológico, a leitura de mapas geológicos e o movimento dos continentes ao...
Article
Metabasites and paragneisses from the high-grade Ediacaran-Cambrian Cabo Frio Tectonic Domain, SE Brazilian coast, are investigated with field, geochronological (U-Pb combined with Lu-Hf), isotopic (Sm-Nd) and geochemical analyses. These units, tectonically interleaved with a Paleoproterozoic basement, record the pre-collisional setting within the...
Conference Paper
Full-text available
The Cabo Frio Tectonic Domain, located at the southeastern tip of the Ribeira belt, comprises a Paleoproterozoic basement (2.0-1.94 Ga – Região dos Lagos Complex) and supracrustal Neoproterozoic rocks of the Buzios sequence. The later mostly includes kyanite-sillimanite-garnet-biotite gneiss with minor calcsilicate and quartzite layers, interleaved...
Conference Paper
Full-text available
Igneous (or magmatic) rocks may be critical elements in the petroleum systems. They may be related with generation, migration and trapping of oil and gas and also generate hydrothermal processes that can affect the reservoirs. In Campos and Santos basins, they occur as volcanic and intrusive bodies, affecting the pre-, intra- and post-salt sequence...
Article
The Alto Tapajós Basin is an intracratonic basin located in the Amazon Craton, consisting predominantly of Paleozoic siliciclastic sedimentary rocks cutted by Mesozoic dyke swarms. With an area of about 97,000 km 2 , the size of Portugal, some parts density cover by the Amazon forest, it has few detailed studies regarding geological structures and...
Article
This paper constrains about the stratigraphic, paleogeographic and tectonic context of the Serra Grande Group in eastern Parnaiba Basin (NE Brazil). Field mapping, facies analysis and seismic interpretations are addressed in this publication. I´ll be grateful about any contributions, suggestions and feedback. This research was made in partnership...
Conference Paper
Full-text available
Diques máficos toleíticos e alcalinos afloram na região do Pontal do Atalaia (Arraial do Cabo-RJ) formando um arranjo estrutural complexo. Intrudem ortognaisses graníticos paleproterozoicos do Domínio Tectônico do Cabo Frio (Complexo Região dos Lagos) e, subordinadamente, lentes máficas (ortoanfibolitos) correlacionáveis à Suíte José Gonçalves. Os...
Conference Paper
Full-text available
Deep-water rifted continental margins show diverse architectures which reflect the complexities of local and regional processes controlling their formation. Theory, experiments and observations show that their evolution is influenced by first-order elements like compositional inheritance, temperature and kinematics. Nevertheless, to unravel their i...
Article
Full-text available
The formation of rifted margins involves the deformation of pre-existing lithosphere whose rheological and mechanical behavior during extension is complex since it is the product of numerous earlier tectonic events. In this work we investigate the Campos Rifted Margin (CRM) architecture, with the aim of exploring the role of basement inheritance an...
Conference Paper
Full-text available
The study of rifted margins shall involve the investigation of the preexistent lithosphere, which rheological and mechanical behavior under extension is complex since it is the product of numerous tectonic events. In order to understand such complexity, we need to know the initial pre-rift composition of the continental crust and lithosphere. It ha...
Article
The South American continental plate has been affected by intraplate deformation since the start of West Gondwana disruption in the Lower Cretaceous (about 140 Ma). That the present shape of South America is not precisely the same as its shape in reassembled Gondwana partly explains the imperfect fits of the conjugate margins of the South Atlantic...
Conference Paper
Full-text available
The Alto Tapajós Basin is an intracratonic basin located in the Amazon Craton, which consists of predominantly Paleozoic siliciclastic sedimentary layers with Mesozoic subvolcanic rocks. Although it covers an area of about 97,000 km², equivalent to Portugal, it has few detailed studies regarding its main geological structures and potential for hydr...
Presentation
In this presentation were showed preliminary results of the analysis of geochemical and geochronological data from metabasic and metasedimentary rocks (supracrustal units) of the Cabo Frio Tectonic Domain (CFTD), identifying its protoliths and tectonic setting in which they were formed and in a larger context understaing its role in the CFTD const...
Conference Paper
Full-text available
The Itremo Group of central Madagascar is made up of quartzites, schists and marbles. Understanding the provenance of the Itremo Group allows us to interpret the tectonic geography at the time of deposition. Published detrital zircons from the Itremo Group indicate the maximum depositional age is c. 1600 Ma, with dominant age peaks at c. 1850 Ma, c...
Chapter
Gondwana was consolidated in the late Cambrian after 180 myr of tectonic convergence among Neoproterozoic paleocontinents and smaller fragments. We present a compilation of 55 orogens that record its final amalgamation. Collisional events are registered by the metamorphic peak assemblages and contractional deformational structures. Two main periods...
Conference Paper
Full-text available
Aiming to represent thirty years of knowledge advancement on the geology of Gondwana, the IGCP-628 main product will be delivered in 2018 with a major compilation of heterogeneous sources, from GIS database, maps and scientific papers. This new geological 1:5M scale map will contain information about rock units, structures and tectonic events of Go...
Conference Paper
Full-text available
The Gondwana Map 2017 (pre-1st edition) is an improved version of the Gondwana Map 2016 (draft 2.0), in which geological and geophysical data were upgraded and a new plate reconstruction was generated. Geophysical maps were created to support geological data, for instance, especially in regions where the geological contacts were covered. Two indire...
Article
The Damara Orogen is composed of the Damara, Kaoko and Gariep belts developed during the Neoproterozoic Pan-African Orogeny. The Damara Belt contains Neoproterozoic siliciclastic and carbonate successions of the Damara Supergroup that record rift to proto-ocean depositional phases during the Rodinia supercontinent break up. There are two conflictin...
Article
The Ararauama Lagoon Fault System composes one of the most prominent set of lineaments of the SE Brazilian continental margin. It is located onshore in a key tectonic domain, where the basement inheritance rule is not followed. This fault system is characterized by ENE-WSW silicified tectonic breccias and cataclasites showing evidences of recurrent...
Conference Paper
Full-text available
The Project Geological Map Revision of the Gondwana began in late 2010 at the Federal University of Rio de Janeiro (UFRJ) in cooperation with PETROBRAS (CENPES). In 2013 the project was approved by UNESCO, through the International Geoscience Programme (IGCP). The main objective is to establish a center of reference in South America about this pale...
Article
T-shaped orogenic triple junctions between mobile belts usually form in two unrelated stages by subsequent and oblique continental collisions separated by a significant time span. Besides these "oblique triple junctions", another type, named "transverse triple junctions", may exist. Such junctions are created by a more complex mechanism of partly c...
Conference Paper
Full-text available
RESUMO: Na costa leste do estado do Rio de Janeiro, mais precisamente nas imediações de Cabo Frio, uma área de rochas pré-cambrianas aflorantes tem impressa uma boa parte da complexidade da trama rúptil que é vista em escala regional na Bacia de Campos. Estruturas WNW-ESE a WE , obliquas transversais à direção estrutural principal NE-SE da Margem S...
Conference Paper
Full-text available
A elaboração de um mapa geológico da América do Sul para o período Jurássico faz parte do projeto IGCP-628-The Gondwana Map Project e do projeto Revisão do Mapa Geológico do Gondwana (CENPES-UFRJ) cujo principal objetivo é gerar o novo mapa deste paleocontinente. O atual continente Sul-Americano apresentam uma complexa história geológica evolutiva,...
Chapter
Full-text available
The most iconic stratigraphic sequences of West Gondwana are those of the Cape-Karoo Basin of southern Africa. But time-equivalent, extensive, and thick basin sequences are also preserved in the less well-known Congo Basin of central Africa, and the Paraná and Parnaíba Basins of south-east and north-central South America. Here, we review sedimentol...
Chapter
Full-text available
The most iconic stratigraphic sequences of West Gondwana are those of the Cape-Karoo Basin of southern Africa. But time-equivalent, extensive, and thick basin sequences are also preserved in the less well-known Congo Basin of central Africa, and the Paraná and Parnaíba Basins of south-east and north-central South America. Here, we review sedimentol...
Conference Paper
Full-text available
The Ararauama Lagoon Fault System composes one of the most prominent set of lineaments of the SE Brazilian continental margin. It is located onshore in a key tectonic domain, where the basement inheritance rule is not followed. This fault system is consisted by ENE-WSW silicified tectonic breccias and cataclasites showing evidences of recurrent tec...
Conference Paper
Full-text available
The Campos rifted continental margin during the breakup of Gondwana Cretaceous. Its underlying crystalline basement is assumed to be the Cabo Frio Tectonic Domain (CFTD), a Paleoproterozoic terrane of the Ribeira Belt. We investigate the nature and architecture this crustal basement using new geophysical Our results suggest the existence of four di...
Conference Paper
Full-text available
Schmitt, R.S., Silva, E.A., Collins, A., Reeves, C., Fragoso, R.A., Richetti, P., Fernandes, G.L., Benedek, M.R., Costa, R.L., Assis, A.P., (2016) Gondwana tectonic evolution recounted through the Gondwana map - IGCP-628. Paper Number 5049. Abstract 35th International Geological Congress, Cape Town, South Africa. (http://www.americangeosciences.org...
Research
Full-text available
This field guide presents and discusses the main geological features of the onshore portion of the Alto de Cabo Frio, a segment of the Southeast-Brazil continental margin separating the Campos and Santos passive margin sedimentary basins. Ductile and brittle deformational features are presented and discussed along selected representative outcrops l...
Article
Full-text available
The Cabo Frio Tectonic Domain is composed of a Paleoproterozoic basement tectonically interleaved with Neoproterozoic supracrustal rocks (Buzios-Palmital successions). It is in contact with the Neoproterozoic-Cambrian Ribeira Orogen along the SE Brazilian coast. The basement was part of at least three continental margins: (a) 1.97 Ga; (b) 0.59 - 0....
Article
The Ponta Negra Pegmatites (PNP), part of a pegmatitic province in Rio de Janeiro State, Brazil, crop out along an intensely deformed, medium- to high-grade metamorphic area that is proximal to a crustal-scale thrust zone developed during the Brasiliano/Pan–African Orogeny. Fieldwork shows that the pegmatites formed in two distinct stages: (i) syn-...
Poster
This poster describes my initial results and interpretations on my geochemical data obtained from paragnaissic rocks of the Palmital Group, a metasedimentary unit of the Cabo Frio Tectonic Domain (SE Brazil), and also presenting evidences that this unit was deposited in an active continental margin setting.
Article
The Lower Ugab and Goantagab structural domains are located at the junction between the N–S trending Kaoko and the E–W trending Damara belts (NW Namibia), where Neoproterozoic metavolcano-sedimentary sequences were intruded by several syenitic/granitic plutons. We present here new U–Pb ages on zircon grains from the Voetspoor and Doros plutons. Tog...
Article
The concept of deformation phases is one of the corner stones of structural geology but, despite its simplicity, there are situations where the concept breaks down. In the Goantagab Domain of NW Namibia, structures in an area of complex deformation can be subdivided into at least four sets, attributed to four deformation phases on the basis of over...
Article
The continental and adjacent marginal features along southeast Brazil were investigated, focusing on the basement structural relationships between onshore and offshore provinces. Lateral and vertical variations in the magnetic anomalies provided a good correlation with the regional tectonic features. The sin-rift dykes and faults are associated wit...
Conference Paper
Full-text available
The magnetic character of the Southeastern Brazilian Margin was investigated based on aeromagnetic and World Digital Magnetic Anomaly Map (WDMAM) datasets. The observed anomalies were correlated with the Precambrian-Eo Paleozoic continental basement and the marginal structures, aiming to provide an overall view of possible onshore-offshore structur...
Article
Full-text available
The main goal of this paper is to contribute to the understanding of the geological and geomorphological evolution of Papagaios Island, located off Cabo Frio, SE Brazil. This sector of the Brazilian coastline lies in the transition between Campos and Santos basins, two prolific oil-bearing areas. Contrarily to other nearby coastal islands trending...
Article
Mafic gneisses and associated paragneisses from the Cabo Frio Tectonic Domain in the southeastern part of the Ribeira Belt, along the coast of Rio de Janeiro State in southeast Brazil, were subjected to a geochemical and Sm–Nd isotope study. Four lithotypes are distinguished: aluminous paragneisses (mainly sillimanite–kyanite–garnet–biotite gneiss)...
Article
Full-text available
A 530-490 Ma tectono-metamorphic event, the Búzios orogeny, is recognized within the Ribeira Belt, along the coast of SE Brazil. Tectonic evolution started with a Late Neoproterozoic marine basin and volcanic activity at c. 610 Ma. The rocks in this basin were affected by high-grade metamorphism at c. 530 Ma, coeval with deformational phases D1-D2,...