Results 61 to 70 of about 3,921 (240)

Distribution of the organic matter in the channel-levees systems of the Congo mud-rich deep-sea fan (West Africa). Implication for deep offshore petroleum source rocks and global carbon cycle [PDF]

open access: yes, 2010
International audienceThe Corinth Rift is superimposed on the Hellenic nappe stack that formed at the expense of the Apulian continental crust above the subducting African slab.
Baudin, François   +3 more
core   +4 more sources

Palynofacies Analyses of Fox Bay Formation (Devonian), Falkland Islands

open access: yesAnuário do Instituto de Geociências - UFRJ, 2019
The Falkland Islands are an archipelago consisting two main islands (West and East) that show contrasts in their sedimentary history. The palynofacies analysis was applied as tool for reconstructing the history of sedimentary organic matter deposition during the Devonian.
M. A. CARVALHO   +3 more
openaire   +2 more sources

Palynofacies, environments, and climate changes in the Magdalena River Basin [PDF]

open access: yes, 2021
ABSTRACTFour environments (swamp, shallow lake, alluvial flood plain, and lagoon) from the Lower Magdalena River Basin were studied for palynofacies’ quantitative characterization. Each environment has been described based on four criteria: palynomorph assemblage, organic matter concentration, organic matter palynological composition, and organic ...
openaire   +1 more source

Evolution and architecture of an exhumed ocean‐facing coarse‐grained submarine canyon fill, Baja California, Mexico

open access: yesSedimentology, Volume 72, Issue 1, Page 189-226, January 2025.
ABSTRACT Present day submarine canyons are active conduits for the transfer of large volumes of sediment, carbon and pollutants from continents to oceans. However, the evolution of submarine canyons over geological timescales remains poorly understood due to their erosional nature and low preservation potential. The Late Cretaceous Punta Baja Formation
Max J. Bouwmeester   +11 more
wiley   +1 more source

The palynofacies pattern for the Lower Cretaceous of central Poland

open access: yesGeological Quarterly, 2012
Sedimentary environments and palynofacies were identified in the Lower Cretaceous of central Poland. The study was based on lithological observations, sedimentological logging and palynological investigations in the following boreholes: Poddebice PIG2, Kolo IG3 and IG4, Wągrowiec IG1, Sarnow IG1, Ciechocinek IG3, Mszczonow IG1, Korabiewice PIG1 ...
Krzysztof LESZCZYŃSKI   +1 more
openaire   +1 more source

Hydrocarbon‐derived thrombolites from the Outer Carpathians (Lower Cretaceous, Poland)

open access: yesSedimentology, Volume 71, Issue 7, Page 2183-2209, December 2024.
Abstract Shallow marine thrombolites from a newly discovered Lower Cretaceous cold seep in the Outer Carpathians (Poland) were analysed in order to untangle the complex sedimentological and biogeochemical processes involved in their formation and their diagenetic modifications.
Stefano Giunti   +6 more
wiley   +1 more source

Foraminiferal and Palynological Records of an Abrupt Environmental Change at the Badenian/Sarmatian Boundary (Middle Miocene): A Case Study in Northeastern Central Paratethys

open access: yesGeosciences
The Badenian/Sarmatian boundary in the Central Paratethyan basins is characterised by a change from open marine conditions during the late Badenian to the assumed brackish conditions during the early Sarmatian. The foraminiferal and palynological results
Danuta Peryt   +4 more
doaj   +1 more source

Integrated organic geochemistry with palynofacies analysis of the Chia Gara Formation in the Kirkuk and Hamrin oilfields, North Iraq [PDF]

open access: yesKirkuk Journal of Science, 2016
The idea of the present work was to combine Rock-Eval pyrolysis and palynofacies analysis in an integrated approach to study 51 source rock cores and cuttings samples collected from the middle Tithonian- Berriasian Chia Gara Formation, in well K-109 ...
S.Y. El Beialy   +3 more
doaj   +1 more source

Occurrence of photosynthetic microbial mats in a Lower Cretaceous black shale (central Italy): a shallow-water deposit [PDF]

open access: yes, 2018
Cretaceous oceanic anoxic events (OAEs) were periods of high organic carbon burial corresponding to intervals with excellent organic matter (OM) preservation.
Fiet, N., Gorin, G., Pacton, Muriel
core  

The latest Jurassic–earliest Cretaceous climate and oceanographic changes in the Western Tethys: The Transdanubian Range (Hungary) perspective

open access: yesSedimentology, Volume 71, Issue 6, Page 1843-1872, October 2024.
Abstract The Jurassic/Cretaceous transition was characterized by several distinct palaeoenvironmental processes and events, amongst which some of the best known are the late Tithonian–early Berriasian aridization and the late Berriasian tectonic reactivation in the Neotethyan Collision Belt.
Damian G. Lodowski   +3 more
wiley   +1 more source

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