Results 11 to 20 of about 214,525 (353)

Structural characteristics and exploration fields in passive continental margin basins of Central Atlantic

open access: yesShiyou shiyan dizhi, 2023
The petroleum resources of the passive continental margin basins in the Central Atlantic are rich, but the insufficient knowledge of basin structural characteristics and accumulation conditions in the area restricts the exploration of deepwater oil and ...
Naxin TIAN   +5 more
doaj   +1 more source

South China Sea documents the transition from wide continental rift to continental break up

open access: yesNature Communications, 2020
The transition from wide continental rift to continental break-up remains enigmatic. Here, the authors show that northern margin of the South China Sea records the transition between wide continental rift to a highly extended continental margin, with ...
Hongdan Deng   +7 more
doaj   +1 more source

Continental influence on the fertilization of marine waters during the late quaternary in the south of the Brazilian continental margin

open access: yesOcean and Coastal Research, 2022
This study sought to understand the role of continental influence on ocean productivity along the late Quaternary based on the comparison between continental palynomorphs and paleoproductivity proxies from the marine sediment core SIS188. Retrieved from
Silvia Regina Bottezini   +3 more
doaj   +1 more source

Structure of the lithosphere and conditions of formation of the Chagos-Laccadive Ridge (density and physical modeling)

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2020
The Chagos-Laccadiv Range is a linear-elongated structure adjacent to the passive margin of western India. The ridge consists of three segments: northern — Lakkadiv ridge, central — Maldives ridge and southern — bank (archipelago) Chagos.
Шайхуллина А.А.   +4 more
doaj   +1 more source

Distribuição de Hg total e suas associações com diferentes suportes geoquímicos em sedimentos marinhos da margem continental brasileira: Bacia de Campos - Rio de Janeiro Total mercury distribution and its association with diferent geochemical supports in marine sediment from the brazilian continental margin: Campos Basin

open access: yesQuímica Nova, 2010
Mercury distribution and geochemical support on the Continental Margin was evaluated at the Campos Basin, Rio de Janeiro state, Brazil. The average concentrations for all analyzed elements were, respectively, 20 ± 5 ng g-1 (Hg); 30 ± 14 mg g-1 (Al); 16 ±
Beatriz Ferreira Araujo   +6 more
doaj   +1 more source

Thermal Effects at Continent-Ocean Transform Margins: A 3D Perspective

open access: yesGeosciences, 2021
Continental breakup along transform margins produces a sequence of (1) continent-continent, (2) continent-oceanic, (3) continent-ridge, and (4) continent-oceanic juxtapositions.
Daniel W. Schmid   +2 more
doaj   +1 more source

Analysis of Different Methodologies to Calculate Bouguer Gravity Anomalies in the Argentine Continental Margin [PDF]

open access: yes, 2014
We have tested and used two methods to determine the Bouguer gravity anomaly in the area of the Argentine continental margin. The first method employs the relationship between the topography and gravity anomaly in the Fourier transform domain using ...
Ghidella, Marta E.   +2 more
core   +2 more sources

Asymmetric continental deformation during South Atlantic rifting along southern Brazil and Namibia [PDF]

open access: yes, 2017
Plate restoration of South America and Africa to their pre-breakup position faces the problem of gaps and overlaps between the continents, an issue commonly solved with implementing intra-plate deformation zones within South America.
Koehn, Daniel   +2 more
core   +1 more source

The limits of seaward spreading and slope instability at the continental margin offshore Mt Etna, imaged by high-resolution 2D seismic data [PDF]

open access: yes, 2016
Highlights: - Analysis of a combined new high-resolution 2D seismic and bathymetric data set offshore Mt Etna - Extensional domains are mapped at the shallow subsurface of the continental margin - Compressional structures are mapped at the toe of the ...
Behrmann, Jan Hinrich   +10 more
core   +1 more source

Characterizing bed roughness on the Antarctic continental margin

open access: yesJournal of Glaciology, 2023
Spatial variability in bed topography, characterized as bed roughness, impacts ice-sheet flow and organization and can be used to infer subglacial conditions and processes, yet is difficult to quantify due to sparse observations. Paleo-subglacial beds of
Santiago Munevar Garcia   +3 more
doaj   +1 more source

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