Results 71 to 80 of about 8,608 (219)

Investigation of Facies Types and Associations of Kuhlan Red Bed Formation in NW Yemen: A New Hypothesis for Origin and Depositional Environment

open access: yesSultan Qaboos University Journal for Science, 2006
Varieties of thirteen facies types were recognized in the Kuhlan Formation represented by red bed siliciclastic sequences of argillaceous sediments. Examination of the Kuhlan stratigraphic column included sequence relationships, lithology, sedimentary ...
Mohammed A. Al-Wosabi   +1 more
doaj   +1 more source

Paleoenvironmental Stasis for the Bioturbating Community During the Paleocene‐Eocene Thermal Maximum at the Southern Iberian Margin

open access: yesGeobiology, Volume 24, Issue 3, May/June 2026.
ABSTRACT During the Paleocene‐Eocene Thermal Maximum (PETM), there was an increase in global temperatures and emissions of isotopically depleted carbon, resulting in a negative carbon isotope excursion (CIE). This climatic event caused a widespread ocean deoxygenation, leading to substantial biotic turnover.
Olmo Miguez‐Salas   +2 more
wiley   +1 more source

Contrasting styles of Laramide folding across the west-central margin of the Cretaceous Valles-San Luis Potosí carbonate platform, Mexico

open access: yesRevista Mexicana de Ciencias Geológicas, 2018
Along the west-central limit between the Central Mexico Mesozoic Basin and the Valles-San Luis Potosí carbonate platform exist marked variations in style and intensity of Laramide folding (Late Cretaceous-Early Tertiary). These variations are attributed
José Jorge Aranda-Gómez   +3 more
doaj  

Stratigraphic relationships between the Colombian, Sinú Offshore and Sinú-San Jacinto basins based on seismic stratigraphy

open access: yesBrazilian Journal of Geology
There are diverse controversial and contradictory models about the geological history of the Caribbean region. Some issues such as the origin of the Caribbean plate, the nature of basement of the Caribbean basins and the regional tectonics, have been in ...
Esteban Alfaro, Michael Holz
doaj   +1 more source

Reduced sediment accumulation rate enhances early marine diagenesis of periplatform sediments

open access: yesThe Depositional Record, Volume 12, Issue 2, April 2026.
The influence of reduced sediment accumulation rate on early marine burial diagenesis was investigated in sediments collected by ODP Leg 133. Results show that low sediment accumulation rates can produce substantial and asynchronous shifts in stable carbon isotope ratios across a slope transect without the development of sedimentological indicators of ...
Amanda M. Oehlert   +3 more
wiley   +1 more source

Detrital-zircon geochronology and provenance of the Ocloyic synorogenic clastic wedge, and Ordovician accretion of the Argentine Precordillera terrane [PDF]

open access: yes, 2015
The Precordillera terrane in northwestern Argentina is interpreted to be anexotic (Laurentian) continental fragment that was accreted to western Gondwanaduring the Ordovician. One prominent manifestation of the subductionand collision process is a Middle?
Astini, Ricardo Alfredo   +3 more
core   +1 more source

Development and Application of a Simplified Method for Preliminary Assessment of Enhanced Oil Recovery and CO2 Geological Storage in Petroleum Reservoirs

open access: yesGreenhouse Gases: Science and Technology, Volume 16, Issue 2, Page 238-252, April 2026.
ABSTRACT Geologic carbon storage in depleted oil and gas reservoirs is a key CO2 mitigation strategy, utilizing existing infrastructure such as injection wells and pipelines, while capitalizing on well‐characterized subsurface properties. This article introduces a versatile methodology designed to estimate critical parameters, including the number of ...
Nívia Morgana de Oliveira   +2 more
wiley   +1 more source

Provenance Reassessment of Eocene Turbidites, New Caledonia: Inferences for Obduction Models

open access: yesGeochemistry, Geophysics, Geosystems
Provenance of pre‐obduction Eocene turbidites from New Caledonia is used to better constrain their geodynamic context and inform debate on subduction polarity.
Dominique Cluzel   +7 more
doaj   +1 more source

Late Campanian–Maastrichtian sequence stratigraphy from Kurdistan foreland basin, NE/Iraq

open access: yesJournal of Petroleum Exploration and Production Technology, 2018
The Kurdistan foreland basin (NE Iraq) was formed as a result of the ophiolite–radiolarites obduction of the Iranian plate on the Arabian Plate. Extensive fieldwork for the determination of nine facies associations has been integrated with the planktonic
Fadhil Ahmed Ameen Lawa
doaj   +1 more source

Tracking sand-fairways through a deformed turbidite system : the Numidian (Miocene) of Central Sicily, Italy [PDF]

open access: yes, 2017
The research presented here is funded by BG Group in partnership with CNPq-Brazil (National Council for Scientific and Technological Development). Rosanna Maniscalco acknowledges a FIR 2014 grant awarded from the University of Catania. We thank Christian
Baldassini, Niccolò   +5 more
core   +1 more source

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