Search Results - "Ramos, Raissa Basti"
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Deep pockmarks as natural sediment traps: a case study from southern Santos Basin (SW Atlantic upper slope)
Published in Geo-marine letters (01-12-2020)“…This study examines the role of deep pockmarks in acting as natural sediment traps. Multibeam bathymetry, single-channel seismic and sediment samples data were…”
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The Alpha Crucis Carbonate Ridge (ACCR): Discovery of a giant ring-shaped carbonate complex on the SW Atlantic margin
Published in Scientific reports (10-12-2019)“…Recently acquired bathymetric and high-resolution seismic data from the upper slope of Santos Basin, southern Brazilian margin, reveal a major geomorphological…”
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Macrobenthic assemblages across deep-sea pockmarks and carbonate mounds at Santos Basin, SW Atlantic
Published in Ocean and Coastal Research (Online) (2022)“…Abstract The SE Brazilian continental margin is rich in geomorphological features that create different seascapes, where diverse benthic communities thrive…”
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A detailed look at diapir piercement onto the ocean floor: New evidence from Santos Basin, offshore Brazil
Published in Marine geology (01-12-2018)“…Diapir piercement through the ocean floor marks the final stages of a dynamic migration path. Once exhumed, a diapir extrudes from the seafloor, placing an…”
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Submarine basalt xenoliths confirm the occurrence of post-rift volcanism in the Southern Santos Basin, SW Atlantic
Published in Journal of South American earth sciences (01-12-2023)“…We report here the finding and analysis of xenoliths of altered basalt clasts dredged from the top of two exhumed diapirs in the southern Santos Basin (SW…”
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What could form a 35-km lineament of carbonate mounds on the ocean floor?
Published in Marine and petroleum geology (01-06-2023)“…A multibeam survey carried out in November 2019 reveals a lineament of seafloor protrusions on the Santos Basin (SW Atlantic) continental slope. Shallow…”
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Microbial perspective on the giant carbonate ridge Alpha Crucis (Southwestern Atlantic upper slope)
Published in FEMS microbiology ecology (01-08-2021)“…ABSTRACT Deep-sea carbonate mounds can harbor a wide variety of heterotrophic and chemosynthetic microbial communities, providing biodiversity hotspots among…”
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Metal/Ca ratios in pockmarks and adjacent sediments on the SW Atlantic slope: Implications for redox potential and modern seepage
Published in Journal of geochemical exploration (01-09-2018)“…Metal/Ca ratios and their corresponding enrichment factors (EFs) in bulk sediment samples collected at a mixed carbonate-siliciclastic continental slope…”
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Sedimentation in the adjacencies of a southwestern Atlantic giant carbonate ridge
Published in Ocean and Coastal Research (Online) (2022)“…Although carbonate mounds have been investigated for 100 years, few studies focus on the giant variety. The Alpha Crucis Carbonate Ridge (ACCR), a ~17 x 12-km…”
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First description of archaeal communities in carbonate-rich seafloor and subseafloor sediments from the Southwestern Atlantic slope
Published in Ocean and Coastal Research (Online) (2022)“…Abstract Deep-sea sediments comprise one of the largest habitats on Earth. The archaeal groups contribute to a large fraction of the deep-sea benthic biomass,…”
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Methane-related community of a carbonate-enriched pockmark, Brazilian Southeastern continental slope
Published in Ocean and Coastal Research (Online) (2022)“…Abstract Pockmarks are geological features that often sustain hydrocarbon-related communities of microorganisms when active, seeping oil or methane. Microbial…”
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