Results 41 to 50 of about 37,425 (167)

Méthodes de datation en Sciences de la Terre

Bulletin de la Société royale des sciences de Liège, 2018
1. IntroductionLa radioactivite des roches ou sediments est liee a la desintegration spontanee d’un nucleide instable en un nucleide stable avec emission d’une radiation.
Nathalie Fagel
semanticscholar   +1 more source

Spatiotemporal Assessment of Groundwater Interactions With a Regulated River: A Case Study of the Nechako River, Canada

River Research and Applications, EarlyView.
ABSTRACT Regulated rivers represent complex hydrological systems where groundwater–surface water interactions are governed by natural conditions and human interventions. This study investigates the spatiotemporal dynamics of groundwater–surface water exchanges in the Nechako River, British Columbia (Canada), using numerical simulations.
Milad Fakhari, John Gray, Avery Dextrase, Andre St‐Hilaire, Richard Martel   +4 more
wiley   +1 more source

Addressing Biases in Ice Jam Observations by Integrating Multi‐Source Data in a Forested Fluvial Landscape, Southern Quebec

River Research and Applications, EarlyView.
ABSTRACT Exhaustive long‐term and large‐scale ice jam records are scarce in most cold river environments. Many discrete events occur in small, sparsely populated river systems and are poorly represented in open‐source databases. These observation biases are transferred to predictive models of ice jams and the collective understanding of their formation
Lisane Arsenault‐Boucher, Étienne Boucher, Rachid Lhissou, Karem Chokmani, Christophe Kinnard   +4 more
wiley   +1 more source

Assessing habitat suitability for black grouse broods at the bioregional scale

Wildlife Biology, EarlyView.
The black grouse Lyrurus tetrix, a galliform species emblematic of the European Alps, is currently threatened by habitat change, particularly given the closure of heathland linked to the rising tree line at higher altitudes. The presence of heathlands in good ecological condition is, however, imperative for the species' reproduction.
Alexandre T. M. Defossez, Samuel Alleaume, Marc Montadert, Josselin Giffard‐Carlet, Dino Ienco, Nadia Guiffant, Sandra Luque   +6 more
wiley   +1 more source

Quelle démarche cognitive pour réaliser une carte mondiale de l’aréisme ?: Les enseignements de la correspondance De Martonne - Aufrère [PDF]

, 2009
International audienceAu carrefour de la climatologie, de l’hydrographie et de la géomorphologie, Emmanuel de Martonne commence une carte des régions privées d’écoulement vers l’océan avant 1914, et il la reprend après la guerre, avec la collaboration de
Aufrère, Marie-Françoise, Marty, Pascal, Robic, Marie-Claire   +2 more
core   +2 more sources

A reappraisal of the Middle to Later Stone Age prehistory of Morocco Réévaluer la préhistoire du Maroc, du Middle Stone Age au Later Stone Age

Journal of the Royal Anthropological Institute, EarlyView.
Over the last 25 years, perceptions of the early prehistory of Northwest Africa have undergone radical changes due to new fieldwork projects and a corresponding growth in scientific interest in the region. Much of this work has been focused in Morocco, known for its extremely rich fossil and archaeological records in caves and rock shelters.
Nick Barton, Abdeljalil Bouzouggar, Stacy Carolin, Louise Humphrey   +3 more
wiley   +1 more source

Amidst (waste) abundance: world‐making and struggles in hosting a municipal landfill in the Bolivian lowlands Au milieu de l'abondance (de déchets) : fabrication du monde et luttes liées à la gestion d'une décharge municipale dans les basses terres de Bolivie

Journal of the Royal Anthropological Institute, EarlyView.
In recent decades, solid waste has proliferated worldwide, becoming a pressing global issue. This article explores the role of Indigenous people dwelling within and upon emerging waste scenarios, with a specific focus on involved forms of sociality and ontological contestation. Drawing on the case of a municipal landfill sited on a Guarani community in
Vanesa Martín Galán
wiley   +1 more source

Présence d’un pergélisol würmien sur le piémont des Pyrénées Atlantiques [PDF]

, 1994
Des cryoturbations se sont produites sur le sommet de terrasses anciennes sur le piémont nord des Pyrénées. Elles déforment le contact entre une couche de loess wùrmien et les cailloutis altérés sous-jacents.
Courchesne, François, Gangloff, Pierre, Hétu, Bernard, Richard, Pierre J. H.   +3 more
core   +1 more source

The birth of an earth being: ‘Rights of nature’ in Brazilian Amazonia and elsewhere Naissance d'un être de la terre : « droits de la nature » en Amazonie brésilienne et ailleurs

Journal of the Royal Anthropological Institute, EarlyView.
In June 2023, the Laje River, located in the traditional territory of the Wari’ Indigenous people in Rondônia, Brazil, was declared a legal entity, an earth being, with rights, following the co‐ordinated action of an indigenous councillor and non‐indigenous activists.
Aparecida Vilaça
wiley   +1 more source

Dynamique d’une bordure forestière par suite de la hausse récente du niveau marin, rive sud-ouest du golfe du Saint-Laurent, Nouveau-Brunswick [PDF]

, 1989
La transgression marine sur la côte sud du golfe du Saint-Laurent a notamment pour effet de provoquer la dégradation des marges forestières. Le déplacement de la ligne de rivage s'effectue à une vitesse moyenne de 1,11 m/an, correspondant ainsi à un taux
Arseneault, Samuel, Bégin, Yves, Lavoie, Jean   +2 more
core   +1 more source