Results 21 to 30 of about 7,880 (220)

The Role of Palynology in Archaeoecological Research: Reconstructing Human-Environment Interactions during Neolithic in the Western Mediterranean

open access: yesApplied Sciences, 2021
This paper provides an overview of the potential of palynology within palaeoenvironmental research to reconstruct past landscapes and assess the relationship between vegetation and the first farming communities.
J. Revelles
semanticscholar   +1 more source

Palynological response deduced through spatially distinct surface samples to reconstruct palaeoecology and palaeoclimate of the Barak Valley, Assam (Indo-Burma region), northeast India

open access: yesJournal of the Palaeontological Society of India, 2023
Establishing modern pollen analogues under various vegetation types in a location is necessary without which it is difficult to accurately interpret fossil pollen assemblages in any region in terms of the past environment and palaeoclimate.
Swati Tripathi, Arya Pandey
doaj   +1 more source

Better molecular preservation of organic matter in an oxic than in a sulfidic depositional environment: evidence from Thalassiphora pelagica (Dinoflagellata, Eocene) cysts [PDF]

open access: yesBiogeosciences, 2020
Anoxic sediments, as compared to oxic settings, encompass a much higher proportion of relatively labile and thus more reactive organic matter, naturally giving rise to structural changes of the organic molecules themselves, as well as cross-linking ...
G. J. M. Versteegh   +4 more
doaj   +1 more source

Equatorward phytoplankton migration during a cold spell within the Late Cretaceous super-greenhouse [PDF]

open access: yesBiogeosciences, 2016
Oceanic Anoxic Event 2 (OAE2), a  ∼  600 kyr episode close to the Cenomanian–Turonian boundary (ca. 94 Ma), is characterized by relatively widespread marine anoxia and ranks amongst the warmest intervals of the Phanerozoic.
N. A. G. M. van Helmond   +10 more
doaj   +1 more source

Ecological response to collapse of the biological pump following the mass extinction at the Cretaceous–Paleogene boundary [PDF]

open access: yesBiogeosciences, 2017
It is commonly accepted that the mass extinction associated with the Cretaceous–Paleogene (K–Pg) boundary (∼ 66 Ma) is related to the environmental effects of a large extraterrestrial impact.
J. Vellekoop   +7 more
doaj   +1 more source

A review of the ecological affinities of marine organic microfossils from a Holocene record offshore of Adélie Land (East Antarctica) [PDF]

open access: yesJournal of Micropalaeontology, 2018
Integrated Ocean Drilling Program (IODP) Expedition 318 recovered a  ∼ 170 m long Holocene organic-rich sedimentary sequence at Site U1357. Located within the narrow but deep Adélie Basin close to the Antarctic margin, the site accumulated ...
J. D. Hartman, P. K. Bijl, F. Sangiorgi
doaj   +1 more source

On the Distinction of Pollen Grains of Early Varieties of Hordeum from Glyceria Species: Addressing the Early Cereal Cultivation Problem in Palynology

open access: yesPalynology, 2020
Pollen grains of primitive varieties of Hordeum vulgare collected by the Gene Bank of the Crop Research Institute, Prague, are compared to pollen of native Glyceria species of the United Kingdom with a view to establishing separation criteria.
B. Albert, J. Innes
semanticscholar   +1 more source

Paleopalynology in Colombia: a review

open access: yesRevista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales, 2023
Palynology is an important tool for establishing age and interpreting paleoenvironments in both continental and marine deposits. This paper provides a summarized overview of the palynological information published for deposits in Colombia ranging from ...
Angelo Plata Torres   +3 more
doaj   +1 more source

Paleoceanography and ice sheet variability offshore Wilkes Land, Antarctica – Part 2: Insights from Oligocene–Miocene dinoflagellate cyst assemblages [PDF]

open access: yesClimate of the Past, 2018
Next to atmospheric CO2 concentrations, ice-proximal oceanographic conditions are a critical factor for the stability of Antarctic marine-terminating ice sheets.
P. K. Bijl   +7 more
doaj   +1 more source

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