Results 1 to 10 of about 363 (68)

Middle–Late Ordovician organic- walled phytoplankton from Sweden: diversity and early radiation [PDF]

open access: yesEstonian Journal of Earth Sciences, 2023
The Borenshult-1 core, drilled in the vicinity of Motala, east of Lake Vättern in south central Sweden, comprises a well-dated and nearly complete succession of marine marly carbonates deposited relatively close to land. The 34 core samples analyzed for
Claudia V. Rubinstein, Vivi Vajda
doaj   +1 more source

Fungal spores in Caribbean mangrove sediments, dataset from southeastern Mexico

open access: yesData in Brief, 2023
Most paleoecological investigations use different biotic or abiotic proxies for climate and environmental reconstructions. Although fossil pollen is one of the most used biological proxies, Non-Pollen Palynomorphs (NPPs), especially fungal spores and ...
Cynthia Karina Can-Canales   +4 more
doaj   +1 more source

An Exceptionally Preserved Terrestrial Record of LIP Effects on Plants in the Carnian (Upper Triassic) Amber-Bearing Section of the Dolomites, Italy

open access: yesFrontiers in Earth Science, 2022
The Carnian Pluvial Episode (CPE) has been recognized as a time of plant radiations and originations, likely related to observed swift changes from xerophytic to more hygrophytic floras.
Guido Roghi   +6 more
doaj   +1 more source

A summary of the Brazilian Paraná Basin Ordovician [PDF]

open access: yesEstonian Journal of Earth Sciences, 2023
The study of the Ordovician of Paraná Basin culminated on the three-fold lithostratigraphic subdivision of the Rio Ivaí Group as follows: Alto Garças, Iapó and Vila Maria formations.
Carolina Zabini   +11 more
doaj   +1 more source

Biostratigraphical study of Lower Cretaceous Kašajina river beds and its importance for geology of NE Serbia [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2002
This article presents results of detailed palynological study in the Lower Cretaceous Kašajina River Beds (Klokočevac, NE Serbia) and its importance for the geology of NE Serbia.
Ercegovac Marko   +2 more
doaj   +1 more source

Palaeoenvironmental changes based on foraminifera during the late Holocene at the Beagle Channel, Argentina

open access: yesAnais da Academia Brasileira de Ciências, 2022
A foraminiferal faunal study was carried out in a Holocene marine section from Arroyo Baliza, located on the northwest coast of the Beagle Channel, to contribute to the knowledge of the palaeoenvironmental conditions during the marine Holocene event ...
EMILIANA BERNASCONI   +2 more
doaj   +1 more source

Identifying organic-rich layers and reconstructing trophic levels in the Dalichai Formation in north Damghan [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2023
The Dalichai Formation in the Ahvanu section, north of Damghan city, with a thickness of 78 meters, comprises alternations of bluish-gray marls and limestones.
Elahe Zarei
doaj   +1 more source

Palynofacies Analysis and Hydrocarbon Generation Potential of the Tithonian-Beriassian Chia Gara Formation from Selected Wells in Ajil, Hamrin, and Tikrit Oilfields, Northern Iraq [PDF]

open access: yesKirkuk Journal of Science, 2018
The recovered sedimentary organic matter from the Tithonian-Berriasian Chia Gara Formation was studied from three selected wells of Ajil-12 (Aj-12), Hamrin-1 (Hr-1), and Tikrit-3 (Tk-3) in Northern Iraq.
Pavel T. Al-Jabary   +2 more
doaj   +1 more source

Spatial distribution of palynomorphs in the surface sediments of the Lagoa do Campelo lake, North region of Rio de Janeiro State, Brazil Distribuição espacial de palinomorfos na superfície dos sedimentos de fundo da Lagoa do Campelo, região Norte do Estado do Rio de Janeiro, Brasil

open access: yesActa Botânica Brasílica, 2005
Four samples of the surface sediments of the Lagoa do Campelo lake bottom were collected in a transect of 500 m by 500 m from edge to edge, in a northeast/southwest direction, the dominant wind direction in the region. The analysis of pollen grains, fern
Cynthia Fernandes Pinto da Luz   +2 more
doaj   +1 more source

BIOZONATION AND AGE RECONSTRUCTION OF 4000FT TO 4540FT SECTION OF WELL-X, NIGER DELTA, NIGERIA [PDF]

open access: yesMalaysian Journal of Geosciences, 2022
Biozonation and Age reconstruction of an offshore Well-X in the Niger Delta was carried out using10composite ditch cutting samples, Palynological studies was carried out on the samples to determine the age of the formation penetrated in the well ...
Otto A. Ihunda   +2 more
doaj   +1 more source

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