Cleverson Guizan Silva
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View article: Evidence From Microscopy and U–Pb Geochronology as a Clue to the Influence of the Cretaceous Magmatism in the Diagenesis of Pre‐Salt Carbonate Reservoirs in the Santos Basin (Brazil)
Evidence From Microscopy and U–Pb Geochronology as a Clue to the Influence of the Cretaceous Magmatism in the Diagenesis of Pre‐Salt Carbonate Reservoirs in the Santos Basin (Brazil) Open
Analyses of U–Pb isotopic geochemistry, optical, and scanning electron microscopy with mapping of chemical elements and fluid inclusions in pre‐salt limestone samples from Sururu and Jupiter Field wells in the Santos Basin, confirm that at…
View article: Revision of Hymenochaetaceae Fungi (Agaricomycetes, Basidiomycota) deposited in Amazonian Herbaria
Revision of Hymenochaetaceae Fungi (Agaricomycetes, Basidiomycota) deposited in Amazonian Herbaria Open
A total of 127 specimens of Hymenochaetaceae were identified in Amazonian Herbaria, with 104 from the Fungal Collection of the INPA Herbarium, 14 from the UFAC Herbarium, and nine from the UFOPA Herbarium. The reviewed exsiccates correspon…
View article: Impact of paleo-rainfall events in the South Atlantic Convergence Zone (SACZ) and human pressures since ~ 1950 in southeastern Brazil: Paraty and Saco de Mamanguá
Impact of paleo-rainfall events in the South Atlantic Convergence Zone (SACZ) and human pressures since ~ 1950 in southeastern Brazil: Paraty and Saco de Mamanguá Open
Protected coastal areas, such as bays, estuaries, and coastal lagoons, are generally highly populated and impacted by anthropogenic activities. These regions are also vulnerable to the effects of climate change and sea level fluctuations. …
View article: Two-Phased Itcz-Driven Upper Salinity Stratification in the Western Equatorial Atlantic During Heinrich Stadial 11
Two-Phased Itcz-Driven Upper Salinity Stratification in the Western Equatorial Atlantic During Heinrich Stadial 11 Open
View article: New Insights into Gravitational Tectonics of the Amazon Deep-Sea Fan: A Comparative Study of Overpressure Mechanisms in the Northwest and Southeast Compartments
New Insights into Gravitational Tectonics of the Amazon Deep-Sea Fan: A Comparative Study of Overpressure Mechanisms in the Northwest and Southeast Compartments Open
View article: Origin, Geological Controls and Interactions of Co2 with Hydrocarbons and Pre-Salt Reservoirs, Santos Basin, Brazil
Origin, Geological Controls and Interactions of Co2 with Hydrocarbons and Pre-Salt Reservoirs, Santos Basin, Brazil Open
View article: Subsurface Gaseous Hydrocarbons and Carbon Dioxide Recorded During the Trans‐Amazon Drilling Project (TADP) in the Acre Basin, Western Amazon
Subsurface Gaseous Hydrocarbons and Carbon Dioxide Recorded During the Trans‐Amazon Drilling Project (TADP) in the Acre Basin, Western Amazon Open
The Trans‐Amazon Drilling Project (TADP) drilled a sequence of claystones, siltstones, and sandstones in the Acre sedimentary basin, reaching a final depth of 923 m. This study characterizes the occurrence and compositional variation of li…
View article: A 2-Million-Year Record of Amazon Climate
A 2-Million-Year Record of Amazon Climate Open
During the Quaternary Period, major fluctuations between wet and dry climate have been implicated in the expansion and contraction of the Amazon forests and associated changes in their biodiversity. Yet, most of the Quaternary Period in th…
View article: Carbon cycling and environmental transitions: insights from sediment core analyses in sepetiba bay mangrove
Carbon cycling and environmental transitions: insights from sediment core analyses in sepetiba bay mangrove Open
To comprehend the historical distribution of organic matter (OM) leading to its role as a source in the soils of coastal bays is crucial for unraveling environmental changes and the consequent biogeochemical processes that occurred during …
View article: Orbital Control of Relative Sea-Level Changes in the Plio-Pleistocene of the North-Western Brazilian Equatorial Margin
Orbital Control of Relative Sea-Level Changes in the Plio-Pleistocene of the North-Western Brazilian Equatorial Margin Open
View article: Outer Shelf 3d Geomorphological Features in the Plio-Pleistocene of the Brazilian Equatorial Margin: Depositional System Driven by 405 Kyr Cyclicity
Outer Shelf 3d Geomorphological Features in the Plio-Pleistocene of the Brazilian Equatorial Margin: Depositional System Driven by 405 Kyr Cyclicity Open
View article: Transfer of industrial contaminants from the inner to the outer region of Sepetiba Bay (SE Brazil) by dredge spoil dumping activities: a temporal record
Transfer of industrial contaminants from the inner to the outer region of Sepetiba Bay (SE Brazil) by dredge spoil dumping activities: a temporal record Open
A multiproxy approach involving grain size, geophysical (resistivity, magnetic susceptibility, and P-wave velocity), mineralogical (XRD), and geochemical (elemental, stable isotopes) data has been applied to core SP9 (128 cm long) to recon…
View article: Orbital control of relative sea level changes in the Plio-Pleistocene of the Northeast Brazilian Equatorial Margin.
Orbital control of relative sea level changes in the Plio-Pleistocene of the Northeast Brazilian Equatorial Margin. Open
We address the evolution of the shelf architecture of the Northeast Brazilian Equatorial Margin during the Plio-Pleistocene, using a coupled approach of sequence stratigraphy based on 3D seismic data, and cyclostratigraphy based on well-lo…
View article: Seismic Geomorphology of the Deepwater Sediment Dispersals Systems in the Drift Phase of the Mundaú Sub-Basin, Equatorial Margin, Brazil
Seismic Geomorphology of the Deepwater Sediment Dispersals Systems in the Drift Phase of the Mundaú Sub-Basin, Equatorial Margin, Brazil Open
View article: Orbital Control of Relative Sea-Level Changes in the Plio-Pleistocene of the North-Western Brazilian Equatorial Margin
Orbital Control of Relative Sea-Level Changes in the Plio-Pleistocene of the North-Western Brazilian Equatorial Margin Open
View article: EVENTOS DE INCISÃO FLUVIAL NA PORÇÃO CENTRO-LESTE DA AMAZÔNIA DURANTE O NEÓGENO E QUATERNÁRIO: a correlação de seções aflorantes e o furo PBAT-15-43
EVENTOS DE INCISÃO FLUVIAL NA PORÇÃO CENTRO-LESTE DA AMAZÔNIA DURANTE O NEÓGENO E QUATERNÁRIO: a correlação de seções aflorantes e o furo PBAT-15-43 Open
A incisão de canais fluviais relacionados à dinâmica do rio Amazonas teve papel fundamental como agente modelador nas terras baixas amazônicas. Na porção centro-leste da Amazônia, a sobreposição de unidades predominantemente arenosas e suj…
View article: A 1.8 million year history of Amazon vegetation
A 1.8 million year history of Amazon vegetation Open
View article: Seismic evidence of gas hydrate and seafloor fluid escape on the upper Amazon deep-sea fan, Brazilian equatorial margin
Seismic evidence of gas hydrate and seafloor fluid escape on the upper Amazon deep-sea fan, Brazilian equatorial margin Open
The Amazon fan contains a gas hydrate province known from a bottom-simulating reflection (BSR) that lies within an upper slope compressional belt. In this study, the extent and character of the BSR and its relation to thrust-fold structure…
View article: Analysis of seismic attributes to enhance a Bottom Simulating Reflector (BSR) in the gas hydrate area of Umitaka Spur, eastern margin of Japan Sea
Analysis of seismic attributes to enhance a Bottom Simulating Reflector (BSR) in the gas hydrate area of Umitaka Spur, eastern margin of Japan Sea Open
This work aims to evaluate the best seismic attributes to use to identify the Bottom Simulating Reflector (BSR) of Umitaka Spur, a well-known gas hydrate area in Joetsu Basin, Japan. For this purpose, it uses 2D single-channel seismic data…
View article: Resizing the extension of the mesophotic “reefs” in the Brazilian Equatorial Margin using bioclastic facies and seabed morphology.
Resizing the extension of the mesophotic “reefs” in the Brazilian Equatorial Margin using bioclastic facies and seabed morphology. Open
Mesophotic reefs are rigid-bottom structures that compose an essential ecological role in the marine environment, but their knowledge is scarce compared to the shallow reefs due to diving depth limits and the high cost of geological and ge…
View article: Satellite assessment of coastal plume variability and its relation to environmental variables in the Sofala Bank
Satellite assessment of coastal plume variability and its relation to environmental variables in the Sofala Bank Open
Monthly composites of remote sensing reflectance at 555 nm wavelength (R rs 555) from ocean color imagery of the MODIS sensor onboard the Aqua platform were used to characterize the spatial and temporal variability of coastal plume in the …
View article: Extended-Range Luminescence Dating of Central and Eastern Amazonia Sandy Terrains
Extended-Range Luminescence Dating of Central and Eastern Amazonia Sandy Terrains Open
The Amazonia biome hosts upland closed and open vegetation ecosystems, in which the current biogeographical patterns relate to the evolution of the physical landscape. Therefore, understanding the origin and timing of the substrates suppor…
View article: Seismic Characterization of Internal Salt Cycles: A Case Study in the Santos Basin, Brazil
Seismic Characterization of Internal Salt Cycles: A Case Study in the Santos Basin, Brazil Open
The exploration of pre-salt reservoirs in the Santos Basin, Brazilian Offshore, requires innovative approaches to improve the quality of reservoir seismic images below large salt bodies, helping to enhance the depth predictions and to impr…
View article: Seismic evidences of recurrent volcanism across the North Brazilian and the Fernando de Noronha ridges – Brazilian Equatorial Atlantic Ocean
Seismic evidences of recurrent volcanism across the North Brazilian and the Fernando de Noronha ridges – Brazilian Equatorial Atlantic Ocean Open
This study, based on the interpretation of LEPLAC (the Brazilian Continental Shelf Survey Project) deep seismic lines (~16.0 s twtt), reveals for the first time across the Brazilian Equatorial Atlantic Ocean seismic evidences that buried p…
View article: Igneability feature: an effective, easy and low-cost way to identify basic igneous rocks using wireline well logs in open hole wells
Igneability feature: an effective, easy and low-cost way to identify basic igneous rocks using wireline well logs in open hole wells Open
The correct identification of igneous rocks is of fundamental importance during drilling and to the quality of the initial assessment of their role in the petroleum systems. These rocks show characteristics in geophysical well logs that ar…
View article: A 1.8 Million Year History of Amazonian Biomes
A 1.8 Million Year History of Amazonian Biomes Open
View article: Biochronostratigraphy of the western equatorial Atlantic for the last 1.93 Ma
Biochronostratigraphy of the western equatorial Atlantic for the last 1.93 Ma Open
View article: Identification and analysis of bottom simulating reflectors in the Foz do Amazonas Basin, Northern Brazil
Identification and analysis of bottom simulating reflectors in the Foz do Amazonas Basin, Northern Brazil Open
This work proposed an additional approach to investigate gas hydrate occurrences in the Foz do Amazonas Basin, in the Brazilian Equatorial Margin. The automatic comparison of seafloor seismic amplitudes with those from the Bottom Simulatin…
View article: Analysis of seismic attributes to enhance Bottom Simulating Reflectors in the gas hydrates field, Umitaka Spur, eastern margin of Japan Sea
Analysis of seismic attributes to enhance Bottom Simulating Reflectors in the gas hydrates field, Umitaka Spur, eastern margin of Japan Sea Open
This work aims to evaluate the best seismic attributes for identifying the BSRs of Umitaka Spur, a well-known gas hydrates field, from the Joetsu Basin, Japan.For this purpose, it uses 2D single-channel seismic data from Expeditions NT07-2…
View article: Amazon Continental Margin: the evolution of Cenozoic climate, oceanography and neotropical biodiversity
Amazon Continental Margin: the evolution of Cenozoic climate, oceanography and neotropical biodiversity Open
The Cenozoic climatic evolution of the Amazon region, the origins and evolution of the neotropical rain forest and its biodiversity, and the origins and rearrangements of the transcontinental Amazon River and the Amazon Deep Sea Fan are fu…