Archaeology ; Archeological site ; Biological indicator ; C 14 dating ; Chronostratigraphy ; France ; Holocene ; Lateglacial ; Mesolithic ; Micromorphology ; Oise ; Palaeo-environment ; Palaeolithic ; Palynology ; Picardie
d'attribuer un âge Allerød aux limons gris Lg contenant des industries du Paléolithique final à Federmesser. Les populations mésolithiques se sont installées à proximité des paléochenaux. Les datations C 14 indiquent une succession d'occupations du début de
The aim of this review is to analyse the effects of plot length (L) and other possible affecting factors [cover percentage (C, %), slope gradient (S), rainfall duration (D), rainfall intensity (I), sand, silt and clay contents, soil organic matter
(SOM) content and geotextile type (natural or synthetic)] on the effectiveness of geotextiles in reducing soil and water loss, based on reported experimental data. From linear regressions, C (%) and soil sand, silt and clay contents are found
to be the most important variables in reducing SLR (ratio of soil loss in bare plots to that in geotextile treated plots) for splash, C (%) for interrill and D (min) for rill and interrill erosion processes, respectively. Soil clay and silt contents and D are key
Arid area ; C 14 dating ; China ; Climatic variation ; Holocene ; Loess ; Palaeo-environment ; Palynology ; Plateau ; Pollen diagram ; Quaternary ; Semi-arid area ; Upper Pleistocene
This study uses relatively reliable AMS C-14 dating, combined with pollen assemblages, to reconstruct the climatic changes in this region during the last 13.0 ka BP : steppe or desert-steppe vegetation dominated landscape alternatively replaced
The objective of this study is to estimate the impact of different land-use types (natural secondary forest, man-made forest, grassland and cropland) on plant available N pool (inorganic N and microbial N), soil C stocks (organic C and microbial C
Chenal anastomosé ; Datation C 14 ; Dendrochronologie ; Granulométrie ; Lichénométrie ; Norvège ; Paraglaciaire ; Petit âge glaciaire ; Plaine d'inondation ; Sandur ; Sédimentaire ; Transport sédimentaire ; Zone froide
Braided channel ; C 14 dating ; Cold area ; Dendrochronology ; Floodplain ; Grain size distribution ; Lichenometry ; Little ice age ; Norway ; Paraglacial ; Sandur ; Sediment transport ; Sedimentary
system (sedimentological and stratigraphic analyses, C 14 dating, dendrochronology and lichenometry). Results indicate that different sedimentary facies types are present and different phases of flooding can be identified.
to identify flow sediment from 3 categories of lahars: (a) hyperconcentrated flow, (b) non-cohesive, clast- and matrix-supported debris flow, and (c) muddy flood. Rheometrical tests on materials sampled from moving hyperconcentrated flows were carried out
Bassin-versant ; Bilan sédimentaire ; Changement climatique ; Chine ; Datation C 14 ; Erosion des sols ; Hebei ; Holocène ; Huanghe ; Répartition de la population ; Utilisation agricole du sol
Agricultural land use ; C 14 dating ; China ; Climatic change ; Hebei ; Holocene ; Huang He ; Population distribution ; Sediment budget ; Soil erosion ; Watershed
Bassin sédimentaire ; Cône de déjection ; Datation C 14 ; Holocène ; Marne ; Niveau lacustre ; Paléo-environnement ; Paléolac ; Pléistocène ; Stratigraphie ; Sédiment lacustre ; Turquie ; Turquie du Sud-Ouest
Alluvial cone ; C 14 dating ; Holocene ; Lacustrine sediment ; Lake level ; Marne ; Palaeo-environment ; Palaeolake ; Pleistocene ; Sedimentary basin ; Stratigraphy ; Turkey
will be integrated into research at Hacimusalar to possibly explain gaps in the record of human occupation there. The age determination is based on C 14 dating of core sediment samples. The paleoenvironmental reconstruction is based on the litho-stratigraphic