Leonardo Fadel Cury

Leonardo Fadel Cury
Universidade Federal do Paraná | UFPR · Department of Geology

Professor

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78
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Publications

Publications (78)
Article
The reconstruction of ancient continental margins encompassed in continent–continent collision is a complex task. The continental blocks generally record a multiphase evolution with interaction of tectonic settings, plate polarities, basins and their depositional architecture. The Ribeira belt (Southeast-Southern Brazil) resulted from the juxtaposi...
Article
Carbonate deposits and sedimentary records from lake in southern Patagonia provide an excellent contribution in the regional environmental register. Laguna Timone maar crater is situated in the Pali Aike Volcanic Field, a Quaternary volcano-tectonic complex in southern Patagonia and represent one of hundreds of “pools” of brines developed after exp...
Article
The Capiru Group is a Neoproterozoic metasedimentary unit that crops out in the Curitiba terrane, Southern Ribeira Belt, Brazil. A detailed geological mapping of this unit was performed during 2016 to 2020. Original interpretations and the new geological map were compiled and integrated with the past field data of the state (MINEROPAR) and national...
Conference Paper
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During the Upper Jurassic-Lower Cretaceous times the western margin of Gondwana in southern Patagonia experienced extreme lithospheric extension and generation of rift and marginal back-arc basins. The ophiolitic complexes of the Rocas Verdes basin comprises incomplete ophiolite pseudostratigraphy lacking ultramafic rocks. The Tortuga Ophiolitic Co...
Article
Tufas are freshwater carbonate deposits that attracted attention as paleoclimatic archives and analogs of microbial carbonates. Recent geomicrobiological studies revealed that cyanobacterial photosynthesis significantly contributed to the precipitation of CaCO3 (photosynthesis-induced CaCO3 precipitation; PICP), and that the chemical properties of...
Article
The Capiru Group (Neoproterozoic) is a 4 km-thick succession deposited on the northern margin of the Curitiba microplate, Southern Ribeira Belt, Brazil. The Capiru Group successions are deformed within the Brasiliano - Pan African Ribeira Belt, which culminated in the amalgamation of Western Gondwana. Even though the rocks are metamorphosed and def...
Article
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Microbialite‐producing microorganisms that inhabit the Puna lakes are traditionally considered constituents of fragile microsystems, unable to resist important environmental variations. Nevertheless, this region has experienced significant climatic fluctuations during the Holocene, raising the unsolved issue on how microbialite‐forming systems have...
Article
The Austral-Magallanes Basin covers the southernmost region of Patagonia, South America. South of Lago Argentino, the Calafate Formation documents part of the foreland stage of the evolution of this basin. Here, sandstones from the Calafate Formation were characterized using petrographical, X-ray diffraction (XRD) and geochemical data in order to e...
Article
Contributions of abiotic and biotic processes on travertine deposition are still not well understood due to technical difficulties, despite that the travertines draw attention as analogues for ancient microbial carbonates and oil reservoirs. To evaluate their contributions, this study examined eight hot springs in Japan. Water chemistry analyses sh...
Article
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Abstract Oncoid nucleation and growth have been attributed to microorganism activity, commonly cyanobacteria, resulting in the trapping of organic, bioclastic or lithoclastic nuclei by concentric laminations. However, the factors controlling these processes are not well understood, especially regarding freshwater precipitation systems. Freshwater o...
Article
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The hinterland Western Domain of the Magallanes Fold-and-Thrust Belt (MFTB) between 52°-54°S is part of a poorly studied region of the southernmost Andean Cordillera. This domain consists of NNW-SSE trending tectonic slices of pre-Jurassic basement units and Late Jurassic-Early Cretaceous ophiolitic complexes and volcano-sedimentary successions of...
Article
Phase diagram modelling and U-Pb monazite ages reveal a clockwise Pressure-Temperature-time metamorphic evolution in the Paranaguá Terrane (Ribeira Belt – SE Brazil) and characterized important tectonic events. Comparisons of our dataset with the Dom Feliciano and Kaoko belts indicate a contrasting metamorphic evolution of South American and Africa...
Article
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Mg clay minerals are usually associated with carbonates in alkaline-saline environments, precipitated from solution and/or transformation from other minerals. The aim of this research is to identify the mineralogy and geochemistry of clay minerals in different alkaline lakes in the Nhecolândia region, the southernmost region of the Pantanal wetland...
Conference Paper
The interaction between organic and organic processes is fundamental for understanding the formation of carbonate reservoirs. In this context, precipitation of clay minerals negatively interferes with the porosity of pre-salt systems. In Brazil, the Pantanal region is a place where there are thousands of lagoons, that is, a current example of a lak...
Conference Paper
Modern carbonate environments can serve as possible analogs to improve our understanding of the physical-chemical processes involved in the formation of ancient microbial carbonates deposited in association with various Mg-clay minerals. Nevertheless, to define a realistic model for carbonate and clay mineral precipitation, it is difficult to study...
Conference Paper
Environments with extreme climatic, geological and tectonic conditions produce a chemical signature in surface and groundwaters. These hydrochemical conditions condition, in many cases, carbonate precipitation. Modern carbonate environments can serve as possible analogs to improve our understanding of the physical-chemical processes involved in the...
Conference Paper
Thousands of small lakes are found on the surface of alluvial deposits in the Pantanal region, a fracture basin in the interior of South America, Brazil. They have different origins and a variety of water and bottom sediments. Some lakes are saline or alkaline, but most are freshwater. The diversity of lake properties has been investigated to arriv...
Conference Paper
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The Paranaguá Terrane is mainly constituted by an arc-related granitic complex, spread in a large NE-SW elongated stripe, located in Southern Ribeira Belt, Southeastern Brazil. The country rocks of these granites occur as a disrupted folded belt composed of metasedimentary rocks and gneissic-migmatitic rocks in split basement nuclei. The integratio...
Article
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As tufas são rochas carbonáticas continentais precipitadas a partir de um fluido rico em bicarbonato com temperatura ambiente, comumente apresentam restos de micro e macrovegetais, invertebrados e bactérias. As tufas de Bonito (MS) ocorrem principalmente ao longo de drenagens, e estão relacionados com rochas subjacentes do Grupo Corumbá, sendo inse...
Conference Paper
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Introduction Marginal basins with oceanic lithosphere spreading can be emplaced over continental margins during collisional or accretionary orogenic events, causing obduction of ophiolites, fold and thrust belt construction and greenschist to blueschist facies metamorphism (Dilek & Furnes, 2014). In Southern Patagonia the Late Jurassic-Early Cretac...
Presentation
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Oral presentation in the XV Chilean Geological Congress in Concepción, 2018. Minor adaptations were done for publication.
Conference Paper
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The Capiru Formation is a metassedimentary sequence composed of carbonates and siliciclastic rocks, embedded in the Curitiba Terrain supracrustal record, related to neoproterozoic collisions of the Southern Ribeira Belt-South Brazil. Metamorphic and deformation records are marked by zones with incomplete paragenesis of greenschist facies (chlorite...
Conference Paper
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In the Chilean southernmost Patagonian Andes the Magallanes fold and thrust belt comprises-from west to east-polydeformed Paleozoic basement, remnants of the backarc Late Jurassic-Early Cretaceous Rocas Verdes Basin (RVB) and sedimentary fill of the Upper Cretaceous-Neogene Magallanes foreland basin. This tectonic framework reflects the advancement...
Conference Paper
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A Formação Capiru, de idade Meso a Neoproterozoica, insere-se dentro do contexto tectônico do cinturão Ribeira Sul representando a unidade supracrustal de uma complexa história deformacional e tectônica. A Formação é composta por rochas de origens pelíticas, psamíticas e carbonáticas, deformadas em graus diferentes e metamorfizadas, em sua maioria,...
Article
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Magnetic maps reflect the spatial distribution of magnetic sources, which may be located at different depths and have significantly different physical and geometrical properties, complicating the identification of the corresponding geologic structures. Filtering techniques are frequently used to separate anomalies from shallow and deep sources, and...
Conference Paper
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Bacias marginais com espalhamento de assoalho oceânico podem ser invertidas durante eventos orogênicos, a colocação da crosta oceânica sobre a margem continental resulta em complexos ofiolíticos preservados em cinturões de dobras e empurrões (Dilek & Furnes 2014). Metamorfismo de fácies xisto verde e xisto azul podem ocorrer nos ofiolitos e nas dem...
Article
The amalgamation of tectonic blocks during the Brasiliano/Pan-African orogeny has been the main subject of study of several works in recent years. From the integration of a diversity of data, including the geophysical potential data and a review of the provenance of metasedimentary sequences based on detrital zircons and the geochemistry of granito...
Article
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The Capiru Formation consists of a low-grade meta-sedimentary succession of slates, phyllites, quartzites and marbles, disposed in blocks delimited by thrust and strike-slip faults in the Curitiba Terrane, Southern Ribeira Belt, Southern Brazil. The metamorphic and deformation records are heterogeneous, with deformed zones tectonically interbedded...
Conference Paper
Full-text available
The Capiru formation is a low-grade metasedimentary sequence composed by slates, rhythmic phyllites, quartzites and marbles, disposed and disrupted in tectonic blocks delimited by thrust and strike-slip faults related to oblique collisions in the southern Ribeira Belt, Curitiba terrane, southern Brazil. The rocks of the Capiru formation crops out a...
Chapter
The occurrences of polymetallic mineralizatin (Pb, Zn, Ag, Au and Cu - Panelas type) in Paraná and São Paulo states were revisited in the project "Integração de dados e reavaliação do potencial mineral do Vale do Ribeira". To increase the knowledge about the controls of the mineralizatin and to re-evaluate the mineral potentil, two areas were selec...
Conference Paper
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Resumo: Os metadolomitos da Formação Capiru, unidade supracrustal do Terreno Curitiba – Cinturão Ribeira Sul, registram variação de isógradas metamórficas desde fácies xisto verde com paragêneses incompletas à anquimetamórficas, possibilitando a preservação de estruturas sedimentares reliquiares. Em perfis estratigráficos a faciologia observada é s...
Article
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Grandes quantidades de rochas graníticas foram geradas durante a evolução do Ciclo Brasiliano, destacando-se o Complexo Granítico Três Córregos (CGTC), um importante complexo ígneo do Neoproterozoico, intrudido nas rochas metassedimentares mesoproterozoicas da Formação Água Clara. No âmbito da Formação Água Clara reconheceram-se duas associações li...
Article
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As rochas das ilhas do Balneário Barra do Sul afloram na porção nordeste do Estado de Santa Catarina e estão distribuídas ao longo de uma faixa alongada segundo a direção geral N15-20E. As rochas estudadas compreendem a região norte do Cinturão Dom Feliciano, situam-se a leste da Microplaca Luís Alves e são enquadradas no Complexo São Francisco do...
Conference Paper
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RESUMO: A região do Perau se insere no contexto leste do Terreno Apiaí, caracterizada pela presença de unidades metavulcanossedimentares mesoproterozoicas e ortognaisses paleoproterozoicos do embasamento, colocados lado a lado e deformados durante a Orogenia Brasiliana. Na região afloram sienogranitos miloníticos como núcleos de embasamento (Núcleo...
Conference Paper
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RESUMO: A Formação Capiru é composta por rochas carbonáticas e siliciclásticas, estudos anteriores nas rochas siliciclásticas mostram estruturas sedimentares evidenciando registros de variações de lâmina d'água durante a sedimentação em ambiente deltaico. Nas sequências carbonáticas, alvo do presente estudo, são reconhecidas faixas com variações de...
Conference Paper
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A região do Perau, localizada entre os municípios de Adrianópolis, Cerro Azul e Tunas do Paraná (PR), no Vale do Ribeira, está inserida no contexto tectônico da Província Mantiqueira, um sistema orogênico que se estende do sul da Bahia ao Uruguai, junto à costa Atlântica Brasileira, ativo durante o Ciclo Brasiliano. Neste sentido, insere-se o Compl...
Conference Paper
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A Formação Capiru representa a unidade supracrustal da porção sul do Terreno Curitiba, composta por rochas metamórficas da fácies xisto-verde, com unidades carbonáticas e siliciclásticas, em meio há uma evolução tectônica policíclica durante o Neoproterozoico, no contexto do Cinturão Orogenético Ribeira Meridional. A pedreira " Morro do Quartzito "...
Conference Paper
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As cidades de Iporanga (SP) e Adrianópolis (PR), localizadas no Vale do Ribeira, sul-sudeste brasileiro, estão inseridas no contexto geológico do Cinturão Orogenético Ribeira Meridional, na porção Sul do Terreno Apiaí e englobam a região das Serras das Andorinhas. As rochas aflorantes da região são relacionadas a uma sucessão supracrustal composta...
Conference Paper
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A Formação Capiru está localizada no Cinturão Ribeira Sul, no Terreno Curitiba. Caracteriza-se como uma sequência metassedimentar de baixo grau metamórfico composta por ardósias, filitos, filitos rítimicos, quartzitos e mármores, dispostos em blocos delimitados por falhas de cavalgamento e transcorrências. O metamorfismo, assim como a deformação da...
Conference Paper
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A Formação Capiru, de idade Neoproterozóica, localizada na porção Sul do Cinturão Ribeira, no Terreno Curitiba é constituída por ardósias, filitos, metarritmitos, quartzitos, metarenitos e mármores dolomíticos com estromatólitos. Os estudos publicados sobre esta formação geralmente são de caráter regional ou sobre as sequências carbonáticas, e o po...
Article
The Paranaguá Terrane, located in the coastal portion of the states of Santa Catarina, Paraná and São Paulo in Southern Brazil is a crustal segment constituted mainly by an igneous complex, with a variety of granitic rocks inserted into the Serra do Mar ridge. The average altitude is approximately 1200 m above sea level, with peaks of up to 1800 m....
Conference Paper
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Palavras-chave: Neoproterozoico, isótopos estáveis, paleoambiente A Formação Capiru é a unidade supracrustal da porção sul do Terreno Curitiba, inserida no contexto do Cinturão Orogenético Ribeira Meridional, sendo composta predominantemente por ardósias, filitos, metarenitos, metaritmitos, quartzitos e mármores dolomíticos com metamorfismo de baix...
Article
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In the northwest of the Paraná Basin, between the states of Mato Grosso and Goiás, there are exposures of the Furnas Formation, where the Transbrasiliano Lineament is also recognized. From the analysis of magnetic maps, the geological and geophysical framework of the study area was defined, with six main domains separated by 5 lineaments. The cont...
Article
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The characterization of shear zones at the southern portion of the Ribeira Belt, PR, BR, as well as its recognition in depth is a major challenge. Despite the lack of subsurface information, the influence of such structures on the installation and evolution of the Paraná Basin during the Phanerozoic is widely accepted. Therefore, in this paper, a...
Article
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The western edge of Parnaíba Basin, an approximately elliptical shaped intracratonic basin located in northern and northeastern Brazil, has particular structural, stratigraphic and lithologic controls. Five depositional sequences are recognized from the Silurian, Mesodevonian-Eocarboniferous, Neocarboniferous-Eotriassic, Jurassic and Cretaceous per...
Conference Paper
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RESUMO: As bacias intracratônicas paleozóicas brasileiras apresentam estruturas tectônicas deformadoras do registro vulcano-sedimentar que compreendem processos de reativação de estruturas herdadas de seus embasamentos e estruturas neo-formadas. A verificação e o entendimento destas estruturas tectônicas do embasamento e suas reativações durante o...
Article
Aripuanã is a Paleoproterozoic (1.76-1.75 Ga), stratiform, volcanogenic Zn-Pb-Ag-(Au-Cu) massive sulfide deposit, has an estimated resource of 11.6 million metric tons (Mt) of ore, and is located on the south-southwest border of the Amazon craton (Brazil). Aripuanã resides in a caldera composed of strongly fractionated, felsic metavolcanic rocks, t...
Conference Paper
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A Serra do Mar ao longo do litoral do Brasil Meridional e de Sudeste tem se tornado um ambiente gerador de risco ambiental vinculado a graves acidentes de ordem ambiental. Com efeito a cadeia montanhosa seguindo os alinhamentos tectônicos dominantes se apresenta ora com direções NE-SW conforme acontece nos estados do Rio de Janeiro, São Paulo e lit...
Conference Paper
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O presente trabalho tem por objetivo a caracterização litoestrutural da Faixa Araguaia na região de Guaraí–TO, situada no contexto da borda oeste da Bacia do Parnaíba, onde afloram as unidades basais da bacia, em contato com rochas pré-cambrianas da Faixa Araguaia. Nesta pesquisa foram feitas analises de lineamentos, utilizando imagens GDEM-ASTER,...
Conference Paper
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RESUMO: A Faixa de Dobramentos Araguaia constitui uma unidade geotectônica situada no Brasil central, nos estados de Tocantins, Pará e Maranhão. Possui 1200 km de extensão e cerca de 100 km de largura, com direção principal NS, fruto da justaposição das unidades litoestratigráficas. Perfaz o braço norte da Província Tocantins e geologicamente é lim...
Conference Paper
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The remote sensing imagery is one of the most used techniques in characterization of geological framework and regional structures. This papper discuss the structural framework of Araguaia Belt around Guaraí region, western Tocantins state, through multiscale analysis. The research emphasizes the comparison of structures defined on Global Digital El...
Article
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The results of geological mapping, chemical analysis and radiometric dating of metabasic rocks of Betara Formation, and mapping and dating of those present in the Betara basement nucleus together with mylonitic granodiorite and syenogranite are reported here. U–Pb analysis of bulk zircon fractions from the metabasic rocks of the basement nucleus yi...
Article
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The Itaiacoca Belt is a sequence of metavolcanic and metasedimentary rocks that crop out east of Parana and southeast of Sao Paulo states, in southern Brazil. This geologic-geochronologic study supports division of the Itaiacoca Belt into two major lithologic sequences. The older is a carbonate platform sequence (dolomitic meta-limestones/metamarls...
Article
39 Ar- 40 Ar dating of micas. ABSTRACT The Cerne, Passa Três and Rio Abaixo granitic stocks are NE-SW-striking elliptic bodies intrusive in the metavolcano- sedimentary sequences of the southeastern portion of the Ribeira Belt (Paraná State, Brazil). These stocks are mainly biotite syenogranite, monzogranite and quartz-syenite with porphyritic text...