Results 31 to 40 of about 67,646 (291)

Quaternary glacial evolution in the Central Cantabrian Mountains (Northern Spain) [PDF]

open access: yes, 2012
Peer ...
González-García, M.   +4 more
core   +1 more source

À propos d’un outil à retouches bifaciales du Paléolithique moyen trouvé dans le Bugey au Petit Abergement(commune de Haut-Valromey, Ain)

open access: yesRevue Archéologique de l’Est, 2021
In our region, it is remarkable to discover a flint tool with bifacial retouch, especially in an environmental context that has few Paleolithic remains. This piece, collected with no archaeological context, raises questions concerning its chrono-cultural
Marc Cartonnet, Guy PESENTI
doaj   +1 more source

A Cenozoic-style scenario for the end-Ordovician glaciation [PDF]

open access: yes, 2014
The end-Ordovician was an enigmatic interval in the Phanerozoic, known for massive glaciation potentially at elevated CO2 levels, biogeochemical cycle disruptions recorded as large isotope anomalies and a devastating extinction event.
Achab, A   +10 more
core   +8 more sources

Glaciation of West Siberia – disputable questions and means of their solution

open access: yesЛëд и снег, 2015
Different approaches to the problem of Quaternary glaciation of the North-West Siberia have been considered in the present paper, in which also analysis of glaciological situation has been done for the region.
V. S. Sheinkman, V. M. Plyusnin
doaj   +1 more source

Evolution of Pliocene climate cyclicity at Hole 806B (5-2 Ma); oxygen isotope record [PDF]

open access: yes, 1993
A detailed Pliocene oxygen isotope record from the Ontong Java Plateau, based on measurements of the surface-dwelling planktonic foraminifer Globigerinoides sacculifer, was produced for the period from 5 to 2 Ma. The record documents major long and short-
Backman, Jan   +4 more
core   +2 more sources

Glaciations, Pre-Quaternary [PDF]

open access: yes, 2009
Description of lines of evidence used to establish the occurrence of an ancient glaciation.
Arnaud, E., Martini, I.P.
openaire   +2 more sources

Late Glacial and Holocene Palaeolake History of the Última Esperanza Region of Southern Patagonia

open access: yesFrontiers in Earth Science, 2022
We undertook multi-proxy analyses on two sediment cores from Lago Pato, a small lake basin at 51°S topographically separated from Lago del Toro in Torres del Paine (TdP), to provide insights into glacier dynamics and lake-level change in the TdP and ...
Stephen J. Roberts   +15 more
doaj   +1 more source

The Spiral Structure of the Milky Way, Cosmic Rays, and Ice Age Epochs on Earth [PDF]

open access: yes, 2002
The short term variability of the Galactic cosmic ray flux (CRF) reaching Earth has been previously associated with variations in the global low altitude cloud cover. This CRF variability arises from changes in the solar wind strength.
Alvarez   +106 more
core   +2 more sources

The Mediterranean deep-sea fauna: historical evolution, bathymetric variations and geographical changes [PDF]

open access: yes, 2004
The deep-water fauna of the Mediterranean is characterized by an absence of distinctive characteristics and by a relative impoverishment. Both are a result of events after the Messinian salinity crisis (Late Miocene).
Emig, Christian, Geistdoerfer, Patrick
core   +6 more sources

Pleistocene glaciation of Fenland, England, and its implications for evolution of the region [PDF]

open access: yesRoyal Society Open Science, 2018
Detailed investigation of landforms and their underlying deposits on the eastern margin of Fenland, East Anglia, demonstrated that they represent a series of glaciofluvial delta-fan and related sediments.
P. L. Gibbard   +2 more
doaj   +1 more source

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