Results 41 to 50 of about 26,058,526 (208)

Palynofacies and lacustrine sequence stratigraphy: a case example from the Jurassic Cañadón Asfalto Formation, Cañadón Asfalto Basin, Extra-Andean Patagonia, Argentina [PDF]

open access: yesJournal of Micropalaeontology
This study presents a detailed palynofacies analysis integrated with lacustrine sequence stratigraphy to evaluate the role of climate-driven hydrological balance on basin infill and its impact on the organic matter accumulation in the Jurassic Cañadón ...
D. E. Olivera   +6 more
doaj   +1 more source

Palynology and palynofacies studies in the lowermost Jurassic of the Lusitanian Basin (Pereiros Formation of the Silves Group), Portugal: evidence of the first transgressive episode

open access: yesActa Palaeobotanica, 2023
The Silves Group of the Lusitanian Basin in Portugal represents the initial infill of the continental rifting basins that formed during the breakup of northern Pangaea regions. Evaporites, especially halite, mark the transition from continental to marine
Margarida Vilas-Boas   +5 more
doaj   +1 more source

Table 2.1. Rock-Eval- & TOC/CNS Analysis and Palynofacies analysis & Optical kerogen analysis

open access: yes, 2018
Rock-Eval- & TOC/CNS Analysis and Palynofacies analysis & Optical kerogen ...
M. Perner (5869408)   +4 more
core   +1 more source

Paleoenvironmental Changes Based on Palynofacies Analysis of the Albian – Maastrichtian Interval of the Pernambuco Basin, Northeast Brazil [PDF]

open access: yesAnuário do Instituto de Geociências, 2019
In order to infer paleoenvironmental changes for the Cretaceous of the Pernambuco Basin, 26 samples collected in the IATE 1-LABIO-PE3 well were analyzed.
Juan David Vallejo Ramírez   +4 more
doaj   +1 more source

Multi‐proxy sequence stratigraphy of a mixed carbonate–siliciclastic shelf across the Jurassic–Cretaceous transition

open access: yesThe Depositional Record, Volume 12, Issue 4, September 2026.
An integrated facies, MS and XRF‐based approach applied to the Tithonian–Berriasian Sidi Khalif Formation (central Tunisia) resolves five Tithonian and eight Berriasian third‐order sequences, showing how mixed carbonate–siliciclastic shelves record coupled eustatic, climatic and tectonic controls and providing a transferable template for similar mud ...
Hamdi Omar, Adnene Lafi, Chokri Yaich
wiley   +1 more source

Palynology, palynofacies and organic geochemistry analysis of the late Eocene shale from Meghalaya, Northeast India

open access: yesJournal of Earth System Science, 2021
Here the depositional environment and hydrocarbon source rock potential of the Kopili Formation is investigated using palynological analysis and Rock-Eval pyrolysis on samples from a borehole section (Borehole BUM14) collected at Umphyrluh area in the Jaintia Hills, Meghalaya.
N Reshma Devi   +3 more
openaire   +1 more source

Climate conditions on the South‐Iberian Palaeomargin during the latest Pliensbachian to early Toarcian: A mineralogical and geochemical study from hemipelagic deposits

open access: yesSedimentology, Volume 73, Issue 5, Page 1631-1663, August 2026.
ABSTRACT The integrated analysis of lithofacies, mineralogy and geochemistry of the hemipelagic marine succession exposed in La Cerradura section (South‐Iberian Palaeomargin) provides new information to characterise the palaeoenvironmental conditions during the latest Pliensbachian to early Toarcian, including the Jenkyns Event.
Chaima Ayadi   +4 more
wiley   +1 more source

Data for: Palynofacies assemblages reflect sources of organic matter in New Zealand fjords

open access: yes, 2018
Sheet 1:sample metadata Sheet 2: palynofacies counts Sheet 3: dinocyst counts Sheet 4: miospore ...
Chris Moy (7004030)   +2 more
core   +2 more sources

Terrestrial Ecosystem Response to Changing Temperature and Seasonality in the Paleocene‐Eocene Thermal Maximum: Shallow Marine Records From the Salisbury Embayment, USA

open access: yesPaleoceanography and Paleoclimatology, Volume 41, Issue 3, March 2026.
Abstract The Paleocene‐Eocene thermal maximum (PETM, ∼56 Ma) is marked by a massive and rapid rise in atmospheric CO2 and ∼5°C of global warming. It is globally characterized by a negative carbon isotope excursion (CIE), and, at least locally, is preceded by a pre‐onset excursion (POE).
Debra A. Willard   +6 more
wiley   +1 more source

Sedimentary records of palaeohydrological variability during the Late Holocene in the Lower Narmada Basin, western India

open access: yesThe Depositional Record, Volume 12, Issue 1, February 2026.
Late Holocene palaeohydrological changes in the lower Narmada Basin, India, revealed using multiproxy analyses of the Orsang River terrace sediments. Distinct depositional phases corresponding to global climatic events were recorded. High‐magnitude floods in the Narmada River during the MWP, and within the tributary Orsang River during DACP and LIA ...
Alpa Sridhar   +9 more
wiley   +1 more source

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