Results 11 to 20 of about 4,015 (145)

Histoire de la végétation et du climat de l’Afrique nord-tropicale au Quaternaire recent* [PDF]

open access: yesBothalia: African Biodiversity & Conservation, 1983
LATE QUATERNARY HISTORY OF VEGETATION AND CLIMATE OF TROPICAL NORTH AFRICA The critical examination o f available pollen data from the vegetation of the Sahara allows one to conclude that this vegetation has gone through but few qualitative changes ...
J. Maley
doaj   +2 more sources

Progress in palynology of the Gelasian–Calabrian Stages in Europe: Ten messages [PDF]

open access: yes, 2007
Europe has at present the most extensive network of palynological sites covering the Late Pliocene and the Early Pleistocene or roughly the Gelasian-Calabrian Stages. This paper covers ten points of recent progress in the palynology of this time period:
Leroy, SAG
core   +1 more source

Le paleoenvironnement vegetal des occupations humaines de la Grotte de Payre à la fin du Pleistocène moyen et au début du Pleistocène supérieur (Ardèche, France)

open access: yesTrabajos de Prehistoria, 2001
[es] El emplazamiento arqueológico del Paleolítico Medio de Payre se sitúa al sureste de Francia, en el valle del Ródano, en el contexto mediterráneo actual.
Chafika Kalai   +2 more
doaj   +1 more source

An oxygen isotope record of lacustrine opal from a European Maar indicates climatic stability during the Last Interglacial [PDF]

open access: yes, 2004
The penultimate temperate period, 127–110 ka before present (BP), bracketed by abrupt shifts of the global climate system initiating and terminating it, is considered as an analogue of the Holocene because of a similar low global ice‐volume.
Andrieu, V   +7 more
core   +1 more source

High-resolution palynological analysis in Lake Sapanca as a tool to detect recent earthquakes on the North Anatolian Fault [PDF]

open access: yes, 2009
High-resolution palynological analysis of a 38-cm-long core collected from Lake Sapanca, northwest Turkey, reveals large earthquakes that occurred during the second half of the 20th century along the North Anatolian Fault Zone. Four events have disturbed
Boyraz, S, Gürbüz, A, Leroy, SAG
core   +1 more source

Analyse stratigraphique d’un lobe de gélifluxion des Torngats Centrales, Labrador [PDF]

open access: yes, 1983
Une coupe dans un lobe de gélifluxion de la vallée de Nakvak (Torngats centrales) expose une succession de dia-mictons et de sols fossiles. Les âges 14C de trois des sols enfouis présentent une inversion (de bas en haut: 1575 ± 76 BP; 1350 ±90 BP; 2450 ±
de Vernal, Anne   +2 more
core   +1 more source

Paléoenvironment durant le Pleistocene Supérieur en Vaucluse: analyse palynologique des couches inférieures de l´abri de la Combette (Bonnieux, Vaucluse, France)

open access: yesTrabajos de Prehistoria, 1998
[es] Paleoambiente durante el Pleistoceno Superior en Vaucluse: análisis palinológico de los niveles inferiores del abrigo de la Combette (Bonnieux, Vaucluse, Francia).
José Antonio López-Sáez   +2 more
doaj   +1 more source

A late Pleistocene long pollen record from Lake Urmia, NW Iran [PDF]

open access: yes, 2008
A palynological study based on two 100-m long cores from Lake Urmia in northwestern Iran provides a vegetation record spanning 200 ka, the longest pollen record for the continental interior of the Near East.
Akhani, H   +10 more
core   +1 more source

Palynologie et lithostratigraphie du Pléistocène du site de Donnacona, vallée du Saint-Laurent, Québec [PDF]

open access: yes, 1991
À Donnacona, une séquence de sédiments non glaciaires est intercalée entre un complexe glaciaire inférieur et le Till de Gentilly. Le complexe inférieur comprend un till basal, des dépôts de marge glaciaire, un diamicton, quelques varves, un till et une ...
Clet, Martine   +2 more
core   +1 more source

Klima-Änderungen im Pleistozän: Isotopenuntersuchungen an fossilen Seesedimenten aus dem Holstein-Interglazial Ost-Polens [PDF]

open access: yesEiszeitalter und Gegenwart, 1999
In Ost-Polen erbohrte Seesedimente mit einer Mächtigkeit bis zu 55 m (Ossówka-See) dokumentieren das ganze Holstein-Interglazial und die Anfangsperiode der Saale-Eiszeit.
J. Nitychoruk, J. Hoefs, J. Schneider
doaj   +1 more source

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