Results 31 to 40 of about 214 (151)

Stratigraphic

Egyptian Journal of Petroleum, 2013
The stratigraphic distribution of the palynomorphs and particulate organic matter was studied in the subsurface Lower/Middle Cretaceous sections in Ii-26-1 and Ig-30-1 wells, located in north Western Desert of Egypt.
Sameh S. Tahoun, Walid A. Makled, Tarek F. Mostafa   +2 more
doaj   +1 more source

RECONSTRUCTING KUNGURIAN (CISURALIAN, PERMIAN) TERRESTRIAL ENVIRONMENTS WITHIN A MEGACALDERA IN THE SOUTHERN ALPS (N-ITALY) USING LITHOFACIES ANALYSIS, PALYNOLOGY AND STABLE CARBON ISOTOPES

Rivista Italiana di Paleontologia e Stratigrafia, 2023
During the Permian, climate experienced a change from icehouse to greenhouse conditions. Few multidisciplinary studies have investigated Kungurian (late Cisuralian) tropical terrestrial ecosystem and climate changes.
Francesca Vallé, HENDRIK NOWAK, EVELYN KUSTATSCHER, SALLY ERKENS, GUIDO ROGHI, CORRADO MORELLI, KARL KRAINER, NEREO PRETO, CHRISTOPH HARTKOPF-FRÖDER   +8 more
doaj   +1 more source

Palynostratigraphy, palynofacies and depositional environment of a lignite-bearing succession at Surkha Mine, Cambay Basin, north-western India

Acta Palaeobotanica, 2015
The paper reports palynology and palynofacies studies of lignite-bearing sediments exposed in an opencast mine succession at Surkha, Bhavnagar District, in the coastal region of Gujarat, India. The study examined the relationships between the palynoflora,
Monga Priyanka, Kumar Madhav, Prasad Vandana, Joshi Yogesh   +3 more
doaj   +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

KEROGEN CHARACTERIZATION OF THE VACA MUERTA FORMATION (TITHONIAN–VALANGINIAN), AT MALLÍN QUEMADO AND PUERTA CURACO, NEUQUÉN BASIN, CENTRAL-WEST PATAGONIA, ARGENTINA. PALYNOFACIES AND GEOCHEMICAL APPROACH

Publicación Electrónica de la Asociación Paleontológica Argentina
This contribution integrates palynofacies, organic geochemical and sedimentological analyses to characterize the depositional environment and the kerogen properties related to the hydrocarbon source potential of the Vaca Muerta Formation at the Mallín ...
Luis Sebastián Agüero, Daniela Elizabeth Olivera, Marcelo Adrián Martínez, Germán Otharán   +3 more
doaj   +1 more source

Palynofacies patterns of the Highveld coal deposits (Karoo Basin, South Africa): Clues to reconstruction of palaeoenvironment and palaeoclimate

Acta Palaeobotanica, 2016
The early Permian represents a crucial period of climate change in Gondwana. This climate signature is captured in the palynological record that represents the floral assemblage of the region. Palynofacies analysis of the No.
Wheeler Alexander, Götz Annette E.
doaj   +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

Source rock evaluation of Kharita and Bahariya formations in some wells, North Western Desert, Egypt: Visual palynofacies and organic geochemical approaches

Egyptian Journal of Petroleum, 2018
Palynofacies analyses were applied on ninety-one samples from the subsurface Albian – Cenomanian succession represented by Kharita and Bahariya formations, encountered in El-Noor, and South Sallum wells, located in the North Western Desert, Egypt, to ...
Nabil Aboul Ela, Sameh S. Tahoun, Tarek Fouad, Doaa A. Mousa, Rehab Saleh   +4 more
doaj   +1 more source