Results 41 to 50 of about 190 (173)

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

Journal 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, C. Zavala, M. E. Quattrocchio, M. E. Soreda, R. Scasso, R. Yang, R. Yang   +6 more
doaj   +1 more source

Palynostratigraphical

Egyptian Journal of Petroleum, 2013
The Kharita and Bahariya formations are of great importance for Egyptian economy. They are the target of the oil and gas exploration in the Egyptian Western Desert.
Walid A. Makled, Abdel Hakam A. Baioumi, Rehab A. Saleh   +2 more
doaj   +1 more source

Palynofacies Analysis and Hydrocarbon Generation Potential of Dokan and Gulneri Formations (Upper Cretaceous) from selected wells in Northern Iraqi Oil Fields [PDF]

Kirkuk Journal of Science, 2007
Sixty five cutting samples from Dokan and Gulneri Formations in three subsurface sections from Khabbaz, Jambour and Taq-Taq oil fields at Northern Iraq have been selected to be studied optically and analytically from Palynofacies points of view.
doaj   +1 more source

Palynology of the Dalichai Formation in the Guydagh section, southeastern Maragheh, according to dinoflagellate [PDF]

Journal of Stratigraphy and Sedimentology Researches, 2018
Introduction The Dalichai Formation is represented by greenish-grey color shales, calcareous shales, marls, and richly ammonitiferous limestones (Steiger, 1966), being widely distributed in the Alborz Mountain, northern Iran.
FRESHTEH SAJJADI, SOMAYEH DERMANAKI FARAHANI, FIROOZEH HASHEMI-YAZDI   +2 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

Acta 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, Zélia Pereira, Simonetta Cirilli, Luís Vítor Duarte, Sérgio Luis Rodrigues Sêco, Paulo Fernandes   +5 more
doaj   +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

Sedimentology, 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, Isabel Abad, Elisa Laita, Ali Mokhtar Samet, Matías Reolid   +4 more
wiley   +1 more source

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

Paleoceanography 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, Mei Nelissen, Appy Sluijs, Henk Brinkhuis, Tammo Reichgelt, Marci Robinson, Jean M. Self‐Trail   +6 more
wiley   +1 more source

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

The 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, Pooja Tiwari, Biswajit Thakur, Deependra Singh, Vineet Goswami, Sanjit Kumar Jena, Ravi Bhushan, Saremulhaq Parwej Mosarraf Shaikh, Deepak Maurya, Laxman Singh Chamyal   +9 more
wiley   +1 more source

Unusual biota and palynofacies of a Lower Devonian intermontane basin saline lake–playa mudflat ecosystem

Papers in Palaeontology, Volume 12, Issue 1, January/February 2026.
Abstract The Strathpeffer–Struie Lower Devonian LORS (Lower Old Red Sandstone) deposits of the Northern Highlands of Scotland contain the decidedly unusual ‘foetid beds’. These are interpreted as being deposited in a highly saline sulphate lake and associated playa mudflat, which developed in an intermontane basin in the Caledonian Mountains of ...
Charles H. Wellman
wiley   +1 more source

The Cenomanian–Turonian boundary interval in the Western Canada Foreland Basin: Stratigraphy, geochemistry, geochronology and sea‐level changes recorded in expanded and condensed clastic successions

The Depositional Record, Volume 11, Issue 5, Page 1200-1258, November 2025.
Shallow‐marine mudstone of the Cretaceous Kaskapau Formation in the British Columbia foredeep preserves a 185 m thick record of OAE2. The organic carbon‐isotope and osmium‐isotope excursions can be correlated in detail with other Cenomanian–Turonian boundary sections around the world.
A. Guy Plint, Darren R. Gröcke, David Selby, Ireneusz Walaszczyk, Sandra L. Kamo, Ian Jarvis, João Trabucho‐Alexandre, Jessica Flynn, Frederick J. Longstaffe, Kienan P. Marion, Bogdan L. Varban, Alice D. C. Du Vivier, David Uličný   +12 more
wiley   +1 more source