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New sedimentary unit with subaqueous facies of Curitiba Sedimentary Basin, Southern Brazil Basin
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Angulo, Rodolfo José
; Souza, Maria Cristina de
; Scardia, Giancarlo
; Salamuni, Eduardo
; Arai, Mitsuru
; Parenti, Fabio
; Veiga, Luís Augusto Koenig
.
Abstract The Curitiba Sedimentary Basin (CSB) is a small and shallow sedimentary basin, which is part of the Continental Rift of Southeastern Brazil. New exposures allowed for the identification of a subaqueous facies association, named Guatupê Unit, within the Guabirotuba Formation. For the first time in the CSB, sedimentary facies clearly deposited within a subaqueous environment, probably a swamp, are described and consists of wavy heterolithic and massive mud with linsen. In addition, mudflow deposits entering the water body are also identified and documented by massive sand facies with organic matter and load structures at their base. The latter indicates that the underlying sediments were plastic and contemporary. These sedimentary features, associated with palynoflora and a fossil trunk tree, indicate that the climate was humid enough to maintain permanent water bodies, like swamps, and vegetation, including trees. Other facies of the Guatupê Unit document mudflows and channelized tractive fluxes, whose association indicates that they were probably deposited in an alluvial fan environment. The facies, facies association, depositional processes, environment, and Miocene age of the Guatupê deposit are quite different from the previous sedimentary units reported for CSB sedimentary infill and the original definition of the formations. (CSB basin Brazil Formation environment swamp linsen addition base contemporary features tree bodies swamps vegetation trees fluxes processes formations
2.
Resistencia antimicrobiana en los principales recursos acuícolas de los departamentos de Tumbes, Piura, San Martin y Puno
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Calizaya, Carla D.
; Reátegui, Erick H.
; Silva, José C.
; Velazco, Rodolfo
; Rodríguez, Liliana
; Angulo, Derly R.
; Llontop, Carlos A.
; Salcedo, Luis A.
; Villena, Carla A.
.
Abstract (Objective) The objective of this study was to analyze antimicrobial resistance in Peruvian aquaculture. (Methodology) An observational, descriptive study was carried out. Samples of Argopectenpurpuratus, Oncorhynchus mykiss, Oreochromis niloticus and Litopenaeus vannamei were included. The bacteria Enterococcus spp., Salmonella spp., Erichia coli, Vibrio parahaemolyticus, Aeromonas spp., and Flavobacterium psychrophilum were isolated. Antibiotic resistance was evaluated using antibiograms, and resistant samples were sequenced to identify antimicrobial resistance genes. Absolute and percentage frequencies were calculated. In addition, Wald, Clopper-Pearson, and pooled prevalence confidence intervals were estimated. (Results) In the case of A. purpuratus, 22.2% (95% CI:2.81-60.00) of the E. coli samples were resistant to oxytetracycline. Resistant samples were found in 4.44% (n=2) of the aquaculture production centers (APCs). In O. mykiss, 88.89% (95% CI:51.16-99.72) of the Enterococcus spp. were resistant to osfomycin and oxytetracycline. Resistant samples were found in12.96% of the APCs (n=7). Regarding O. niloticus, 47.31% (95% CI: 37.16-57.46) of the E. coli samples were resistant to oxytetracycline ampicilline>chloramphenicol>fosfomycin and azithromycin. Resistant samples were encountered in 50% of the APCs (n=19). In addition, 89.36% (95% CI:80.55-98.18) of the Enterococcus spp. were resistant to Fosfomycin> chloranphenicol and colistin> oxytetracycline>azithromycin>ampicilline; resistant samples were found in 36.84% of the APCs (n=14). In L. vannamei, 87.11% (95% CI:83.00-91.21) of the Enterococcus spp. samples were resistant to Fosfomycin> colistin> oxytetracycline> azithromycin> ampicilline and resistant samples were found in 100% of the APCs (n=33). Likewise, 35.05% (95% CI:29.74-40.23) of the V. parahaemolyticus samples were resistant to ampicilline>fosfomycin>oxytetracycline>azithromycin>eritromicine>enrofloxacin>ampicilline> chloranfhenicol. Resistant samples were found in 78.79% (n=26) of the APCs (Conclusions) The percentage of APCs with O. niloticus and L. vannamei showed that antimicrobial resistance was high.
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Resumo (Objetivo) O objetivo foi analisar a resistência antimicrobiana na aquicultura peruana. (Metodologia) Foi realizado um estudo observacional, descritivo. Foram incluídas amostras das espécies Argopecten purpuratus, Oncorhynchus mykiss, Oreochromis niloticus e Litopenaeus vannamei. Foram isoladas bactérias dos gêneros Enterococcus spp., Salmonella spp., Aeromonas spp., e espécies de Escherichia coli, Vibrio parahaemolyticus e Flavobacterium psychrophilum. A resistência antimicrobiana foi avaliada por meio de antibiograma, e amostras resistentes foram sequenciadas para identificar genes de resistência antimicrobiana. Foram calculadas as frequências absoluta e percentual, além dos intervalos de confiança de Wald, Clopper-Pearson e as prevalências agrupadas. (Resultados) Em relação a A. purpuratus, 22,2% (IC 95%: 2,81-60,00) das amostras de E. coli foram resistentes à oxitetraciclina. Estes pertenciam a 4,44 % (n=2) dos centros de produção aquícola (CPA). Em O. mykiss, 88,89% (IC 95%: 51,16-99,72) das amostras de rococcus spp. foram resistentes à fosfomicina e oxitetraciclina. Estas pertenciam a 12,96% das CPAs (n=7). Em relação a O. niloticus, 47,31 % IC 95%: 37,16-57,46) das amostras de E. coli foram resistentes à oxitetraciclina>ampicilina>cloranfenicol fosfomicina e azitromicina. Estas pertenciam a 50% das CPAs (n=19). Além disso, 89,36% (IC95%: 80,55-98,18) das amostras de Enterococcus spp. foram resistentes a fosfomicina>cloranfenicol e colistina>oxitetraciclina>azitromicina>ampicilina; estas pertenciam a 36,84% das CPAs (n=14). Em L. vannamei, 87,11% (IC 95%: 83,00-91,21) das amostras de Enterococcus spp foram resistentes à fosfomicina>colistina>oxitetraciclina>azitromicina eritromicina>enrofloxacina> ampicilina>cloranfenicol e pertenciam a 100% das CPAs (n=33). Além disso, 3 ,05% (IC 95%: 29,74-40,23) das amostras de V.parahaemolyticus foram resistentes à ampicilina>fosfomicina>colistina>oxitetraciclina>azitromicina. Estas pertenciam a 78,79% (n=26) das CPAs. (Conclusões) A porcentagem de CPA de O. niloticus L. vannamei, mostrou maior resistência antimicrobiana do estudo.
3.
Inventory of natural processes with nautical charts, real-time kinematic global navigation satellite systems (RTK-GNSS), and unmanned aerial vehicle (UAV), Trindade Island, Brazil
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Santos, Fernanda Avelar
; Souza, Maria Cristina de
; Zuquette, Lázaro Valentin
; Angulo, Rodolfo José
; Rosa, Maria Luiza Correa da Camara
; Talamini, Adriana Ahrendt
; Figueiredo, Carolina Almeida
.
Abstract The volcanic Trindade Island is a remote Brazilian offshore territory in the South Atlantic, located ca. 1.140 kilometers east of the southeast coast of Brazil. The island’s permanent exposure to geological hazards requires assessment. However, the lack of erosion and landslides temporal data impedes predictive geohazard analyses. Therefore, we compiled pre-existing data from nautical charts and surveyed the surface terrain on Trindade Island to generate Digital Terrain Models (DTMs) and comparative accuracy analyses. The DTM based on pre-existing data shows the lowest accuracy (root mean square error - RMSE: 12.3 m) yet is adequate for regional studies. In contrast, the DTM developed from real-time kinematic global navigation satellite systems (RTK-GNSS) has the highest vertical accuracy (RMSE: 0.48 m), but spatial variability of ground elements was underestimated and limited to meter-sized (and larger) elements. The DTM obtained using the unmanned aerial vehicle (UAV) with ground control points (GCP), on the other hand, presented lower accuracy (RMSE: 2.37 m) than the RTK-GNSS model but still allowed observation of centimetric (and larger) ground features. For geohazard assessment on Trindade Island, models that allow fine-scale studies are needed. A UAV with GCP provides such standards and proved to be the most viable option in remote and complex sites as well. Hence, this study, the first to allow multi-temporal analysis of geohazard assessment on Trindade Island, offers a viable solution for similar analyses in other remote locations.
4.
Subtidal soft sediments of the Paranaguá Bay inlet: mapping habitats and species distribution at a landscape scale
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Negrello-Filho, Orlei Antonio
; Ugaz-Codina, Juan Carlos
; Oliveira, Luiz Henrique Sielski de
; Souza, Maria Cristina de
; Angulo, Rodolfo José
.
ABSTRACT This study aimed to map habitats and species distribution in a benthoscape section of the Paranaguá Bay inlet, Paraná State, Southern Brazil. The degree of correspondence between maps independently generated through sidescan imagery and macrofauna and sediment samples was also evaluated. The study area had approximately 9km2 and was chosen considering both diverse landscape features and proximity to future port developments. Sampling was performed in 67 evenly distributed and unreplicated sites. Patterns related to backscatter intensity (high and low) and the presence or absence of bedforms were observed, as well as other large-scale features like sand waves and beach rock outcrops. Local sedimentary environments were represented in a mosaic used for comparisons with sedimentary and faunistic data. Cluster analysis using grain size data formed four groups with similar particle size distribution. A strong correspondence between habitats and grain size distribution was found in only one habitat class. Macrofauna around the deeper Poço Point region and the Mel Island shallower banks presented high species richness and number of individuals. These were considered habitats of high biological relevance. Regions with bedforms indicate higher rates of sand transport in which a few species can thrive. The navigation channel had the lowest number of species and individuals when compared to vicinal regions, indicating persistent impacts. The study evidenced local estuarine bottom heterogeneity and contributed to the understanding of local processes of both bottom sediments dynamics and their associate faunal components.
https://doi.org/10.1590/s1679-875920180192406603
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5.
Genesis of submerged sandstones in Paraná State continental shelf, Southern Brazil, based on cementation patterns, ages and stable isotopes
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Simioni, Bruno Ivan
; Angulo, Rodolfo José
; Veiga, Fernando Alvim
; Oliveira, Luiz Henrique Sielski
; Souza, Maria Cristina de
.
ABSTRACT Beachrocks are a common feature along the Brazilian coast and although their occurrence in intertidal zones is concentrated in tropical regions, similar formations have been described submerged on the continental shelf in subtropical regions. In the state of Paraná, submerged sandstones are present on the continental shelf and their formation could be associated with the cementation of beach sediments. This would provide an excellent indicator of the stabilization of the coastline during lower sea-level periods. In this study, samples were identified and collected in Paraná State, Southern Brazil, at depths between 18 and 33 meters in the continental shelf and at 6 meters depth in the Paranaguá Bay inlet. As in situ observations proved problematic, analysis relied mainly on their petrography, mineralogy, ages and isotopic values (δ13C and δ18O). Whole rock dating demonstrated that the oldest acquired sample was formed 28109-26406 cal. years BP, being exposed to atmospheric conditions during the Last Glacial Maximum. This exposure is reflected in its cements, composed uniquely of microcrystalline and spar calcite, and on its δ18O/δ13C values, which indicates formation on a fresh water environment. Contrarily to most carbonate cemented products described along Brazilian coastline, δ13C values ranged between -26.36 and -51.07‰ on all other samples, interpreted as a result of cement precipitation prompted by methane, either: in a paleo-estuarine/ paleo-lagunar to transgressive environment buried under a pile of coarser material or; after transgression and drowning of organic-rich sediments by coarser sediments, and due to upward migration of methane on the sedimentary column. Both processes would result in cements identified on these samples, apart from the one collected closer to shore which indicates some freshwater influence. Two of the samples separated by 15km distance perpendicularly to the actual coastline and 11m depth difference yielded max and minimum ages of 7913 and 7452 cal. years BP. Such a short time span between these samples could be either the result of their formation on a linked environment or older carbon signature from drowned environments being present on younger cements.
https://doi.org/10.1590/s1679-87592018019306603
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6.
Trabajos de investigación presentados en el L Congreso Mexicano de Anestesiología: Chihuahua 2017. México
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Ríos Medrano, Alea Fernanda
; Herrero Trujillano, Manuel
; Robles López, Maria Decire
; Rodríguez Barajas, Ruben
; Gutiérrez-Martínez, Paola Virginia
; Ramírez-Gómez, Melba
; Olvera-Hernández, Jesus Arnoldo
; Márquez Noyola, Elizabeth Alicia
; Almonte de León, Héctor
; Hernández Mancilla, Arturo
; Castro Salinas, José Ernesto
; Medrano-Duarte, Olga Abigahil
; Ramírez-Mendoza, Karla
; Rodriguez-Nieves, Georgina Monserrat
; Pareces Ríos, Adriana
; Ruiz-Rubio, Yolanda
; Hernández-Santiago, María Guadalupe
; Ramírez Mendoza, Karla
; Medrano Duarte, Olga Abigahil
; Martínez-Alpuche, Rocío Adriana
; Valenzuela-Priego, Francisco
; Álvarez-Santiago, José Heriberto
; Lugo-Rodríguez, Julian
; Betancourt-Sandoval, Alonso
; Prince-Angulo, Silvia Annel
; Martínez-Felix, Israel
; Salazar-Castro, Laura
; Espinazo-Quintero, Erendira
; Otañez, Monica Thalia
; Priego, Gloria
; Alzate, Ana Lizette
; Salazar, Laura Elena
; Nieblas, Mariela
; Martinez, Israel
; Alvarez-Betancourt, Ana Elsa
; Sánchez-Hernández, Eloy
; Romo-Serrano, Erika
; Rodríguez-Jauregui, Adriana
; Díaz-Aceves, Erica Raquel
; Arteaga-Trejo, Jaime
; Rodríguez-Jáuregui, Adriana
; Robles-Lopéz, María Decire
; Ibarra-González, María Livier
; Alvarez-Betancourt, Ana Elsa
; Díaz-Aceves, Erica Raquel
; Arteaga-Trejo, Jaime
; Santana-Sonora, Beatriz Alejandra
; Prince-Angulo, Silvia Annel
; Sandoval-Rivera, Arturo Guadalupe
; Camacho-López, Jesús Erick
; Alzate-Moctezuma, Ana Lizette
; Valencia-Echávarri, Andrea
; Canales-Bonilla, Carlos Patricio
; Ramos-Hernández, Julia Demetria
; Flores-Posada, Jesus Jonathan
; Muñoz Garcia, Aleyda
; Osorio Santiago, Maria Areli
; Lopez Cartita, Victor
; Ortega, Julio
; Fuentes García, Víctor E
; Moyao García, Diana
; Villars Zamora, Elvia Gabriela
; Prince Angulo, Silvia Annel
; Gerardo Angulo, Alma Ruth
; Martinez Felix, Israel
; Ayala Camargo, Yuridia
; Esquer de la Rosa, Jaquelyn Roxana
; Trapaga Millares, Yazmin
; Sánchez León, Claudia Elena
; Vásquez Puente, Felipe
; Rojo Medina, Victor Javier
; Urias Romo de vivar, Emma Gabriela
; Prince Angulo, Silvia Annel
; Ojeda Ramos, Joel
; Caceres Figueroa, Leonardo Andres
; Martinez Reyes, Maria Fernanda
; Contreras Ramírez, Nathalie
; Martínez Barreto, Nelly
; Ruelas León, Berenice
; Reyes Salgado, Karla
; Ruvalcaba Sánchez, Rafael
; Núñez Valencia, Carolina
; Escamilla Asiain, Gabriela
; Carranza-Cortés, José Luis
; Puga-Flores, Eva del Carmen
; Jiménez-Cardona, María Beatriz
; Puga-García, Diana Marisol
; Alcaraz-Ramos, Rosina
; Martinez-Delgado, Olinda
; Zamudio-Gracia, Carlos Amador
; Mireles Vega, Elizabeth
; Hernández López, Clara
; Ceballos Niño, Jose Luis
; Carreño Caballero, Jessica
; Montiel Jarquín, Álvaro José
; López García, Ingrid
; Serrano Cuevas, Beatriz
; Martinez Marin, Dolores Guillermina
; Díaz-Aceves, Erica Raquel
; Romo-Serrano, Erika
; Campechanos-Asencio, María de los Ángeles
; Rodríguez-Jáuregui, Adriana
; Betancourt-Álvarez, Ana Elsa
; Arteaga-Trejo, Jaime
; Arteaga-Trejo, Jaime
; Romo-Serrano, Erika
; Rios-Navarro, Ramón Alejandro
; Rodriguez-Jauregui, Adriana
; Alvarez-Betancourt, Ana Elsa
; Diaz Aceves, Érica Raquel
; Calleja-Zenteno, Liliana
; Fernández-Vázquez, María Urbelina
; Carreño-Caballero, Jessica
; Serrano Cuevas, Beatriz
; Montiel Jarquín, Álvaro José
; Carreño- Caballero, Jessica
; Cortes- Pineda, Claudia
; Fernández-Vázquez, María Urbelina
; Hernández-Domínguez, Juan
; Serrano-Cuevas, Beatriz
; Ruiz- Luna, Mayra
; Gómez-Moreno, Julieta Berenice
; Hernández-Santiago, Maria Guadalupe
; Ruiz-Rubio, Yolanda
; Ruiz-Serrano, Ana Cristina
; Medina-Flores, Aleida
; Sánchez Torres, Claudia
; Osorio Santiago, María Areli
; Lee, Angel
; Correa-Ovis, Jose Francisco
; Priego-Martínez, Luis Alberto
; Valencia-Carrillo, Miguel
; Sánchez-Arteaga, Sofia
; Cruz-Márquez, Abraham Josué
; Duran-Zamora, Karina Aurora
; Corral-Guerrero, Sergio Francisco
; Arce Bojorquez, Brisceyda
; Medina, Francisco
; Felix, Pavel
; Estrada, Haydeé Gloria
; González-Herrera, Francisco Javier
; Zepeda Olivera, Silvia
; Pablo-Yañez, Julio Cesar
; Colores Velazquez, Julio Cesar
; Calva Maldonado, Miguel
; Veyna Rocha, Sissy Barubi
; Veyna Rocha, Abraham Irishd
; Rodríguez-Rodríguez, María Guadalupe
; Castillo- Rodriguez, Juan Orlando
; Martínez-Figueroa, Brenda Paola
; Romero Guillén, Lorena Priscila
; Pavía Vega, Susy Sáez
; Jiménez Siles, María Eugenia
; Hurtado Reyes, Ignacio Carlos
; Rojas Zarco, Eder Marcelo
; Sánchez Tapia, Mario Alberto
; Villicaña-Ayala, Carolina
; Díaz-Aguilar, Marco Antonio
; Apolinar Jiménez, Evelia
; García-Parra Pérez, Paola Carolina
; García-Parra Pérez, Natalia Cristina
; Yee-Rendón, Zumey
; Valle-Leal, Jaime Guadalupe
; Reyes-Jiménez, Gerardo Antonio
; Ortiz-Magallanes, Elías
; Sanchez-Aguilar, Maricela
; Mota-Figueroa, Roanne Patrician
; Espinosa-Tadeo, Aldo Ernesto
; Díaz-Hernández, Alejandro Eduardo
; Cendón-Ortega, María Mercedes
; Ortega-Ponce, Fabiola Estela Elizabeth
; Romero-Guillen, Lorena Priscila
; Cruz Castañedo, Greta
; Constantino-Rivera, Luis Armando
; Gordillo-Paniagua, Jorge Alberto
; Contreras-Ramírez, Nathalie
; Bernal-Zambrano, Luis Omar
; Flores-Alvarado, Rosa María
; Ferrera-Sarquís, María Aurora
; Espino Vega, Ana Frain
; Guillen-Narváez, María del Rocio
; López-García, Rocío Angélica
; Martínez-Sánchez, Angélica
; Huerta-Beltrán, Juana Geraldine
; Gómez-Rojas, Juan Pablo
; Rivera-Ruiz, Rodolfo Eduardo
; Ramírez Reyes, Liliana Georgina
; Muñoz Martínez, Raúl
; Martínez-Morales, Nayeli Noemi
; Mariscal-Cervantes, Beatriz
; Chávez-Barragán, Oscar Fernando
; Barrera-de León, Juan Carlos
; Carrillo-Guerra, Valentin
; Huitrón-Hernández, José Alonso
; De la Rosa-Fabián, Viviana Marysela
; Zertuche-Méndez, David Ricardo
; Riquelme Holguin, Karla Talia
; Gutierrez Beltran, Maria del Refugio
; Martinez-Tapia, Maria Elena
; Amezquita Esparza, Monica
; Portillo Villalobos, Samantha
; Díaz Solís, Erick Iván
; Estrada Utrera, Maria Sandra
; Islas Ruz, Félix Gilberto
; Pérez Díaz, Roberto
; Chávez-Contreras, Sara Idali
; Zepeda Olivera, Silvia
; Calva-Maldonado, Miguel
; Fragoso-Avilés, Fabían
; Rosa-Moya, Griselda de la
; Ávila-López, Armando
; López Castruita, Victor Manuel
; Manrique Carmona, Luisa Piedad
; Ramírez- Martínez, Elizabeth
; Rojas-Peñaloza, Janeth
; López-Gómez, Antonio
; Veyna Rocha, Abraham Irishd
; Veyna Rocha, Sissy Barubi
; Torres Hernández, Rosa
; Aleman-Ortega, Cristina
; Guevara-Pérez, Alejandra
; Castillo Gamez, Tobias Francisco
; Gutierrez Beltran, María del Refugio
; Martínez Tapia, María Elena
; Alanis Uribe, Karla
; Guerrero Morales, Fernando
; Molina Rodríguez, Gloria
; Gómez Cruz, José Roberto
; Tapia Castro, Gabriela
; Ley, Marcial Luis
; Castro Ortega, Julio
; Martínez, Leo Bruno
; Portugal Moreno, Víctor Hugo
; García Cabello, Luis Manuel
.
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7.
Modelo gravimétrico-magnético do gráben de Paranaguá-PR, Brasil
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O objetivo deste trabalho é contribuir com o estudo do Gráben de Paranaguá, feição tectônica integrante do Sistema de Riftes Cenozóicos do Sudeste do Brasil. Especificamente, propõe-se um modelo gravimétrico-magnético do topo do embasamento Pré-Cambriano sob os sedimentos cenozóicos da planície costeira paranaense. Buscou-se identificar as estruturas principais e estimar a espessura da cobertura sedimentar e das intrusões básicas mesozóicas do embasamento. Para tanto foram realizados levantamentos geofísicos regionais, os quais totalizaram mais de 55 quilômetros de perfis gravimétricos com espaçamento de 500 metros entre as estações e cerca de 45 quilômetros de perfis magnéticos com medidas a cada 25 metros. Os perfis geofísicos, situados entre a Baía de Paranaguá e a desembocadura do rio Saí-guaçú, na região central do Arco de Ponta Grossa (APG), foram orientados na direção NE-SW, perpendicularmente à tendência principal do APG. A concepção do modelo 2-D foi baseada na modelagem dos dados gravimétricos e magnéticos e calibrada por registros de profundidade do embasamento derivados de poços tubulares. A identificação de um alto gravimétrico foi relacionada a um soerguimento do embasamento (Alto Estrutural de Canoas). Baixos gravimétricos contíguos foram interpretados como baixos estruturais e denominados Albatroz e Shangri-lá, cuja espessura máxima do preenchimento sedimentar é de 130 metros. O modelo magnético permitiu estimar as espessuras dos diques de diabásio e calcular uma extensão crustal próxima de 27% relativamente aos 45 km de perfis magnéticos.
We study the Paranaguá Graben, which is part of the Cenozoic Rift System of southeastern Brazil. Specifically, it is considered a gravimetric-magnetic model of the top of the Precambrian basement under the Cenozoic sediments of the Paraná state coastal plain. We aim to identify the main structures of the Paranaguá Graben. We also evaluate the thickness of the sedimentary section and the Mesozoic basic intrusions in the basement. We use a regional geophysical survey that extends for more than 55 km of gravimetric profiles with 500 m of spacing between the stations and about 45 km of magnetic profiles with spacing of 25 m. The geophysical profiles were located between Paranaguá Bay and the Saí-guaçú river outlet, both in the context of the central region of the Ponta Grossa Arch (PGA). Data were collected along NE-SW acquisition lines, perpendicularly to the principal trend of the PGA. We present a 2-D geologic model using on gravity and magnetic data. We incorporate prior knowledge about the basement depth provided by boreholes. The identification of gravity high was related to a basement uplifting (Canoas structural high). Contiguous gravity lows had been interpreted as structural lows and called Albatroz and Shangri-lá, whose maximum thickness of the sediments is 130 m. The magnetic model allowed to estimate the thicknesses of the basic dykes and to calculate an average crustal extension of 27% related to 45 km of the magnetic profiles.
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volume | volume do artigo |
issue | número do artigo |
elocation | elocation |
doi | número DOI |
issn | ISSN da revista |
in | código da coleção SciELO (ex. scl - Brasil, col - Colômbia) |
use_license | código da licença de uso do artigo |