Relevant bibliographies by topics / Géochronologie K-Ar et 40Ar/39Ar

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters

Academic literature on the topic 'Géochronologie K-Ar et 40Ar/39Ar'

Author: Grafiati
Published: 7 July 2024
Last updated: 31 July 2025

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Journal articles on the topic "Géochronologie K-Ar et 40Ar/39Ar"

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Le Carlier De Veslud, Christian, Paul Alexandre, Michel Cuney, Gilles Ruffet, Alain Cheilletz, and Denis Virlogeux. "40 Ar/39Ar thermochronology and thermal evolution of Meso-Variscan granitoids of the Charroux-Civray plutonic complex (Seuil du Poitou)." Bulletin de la Société Géologique de France 175, no. 2 (2004): 147–56. http://dx.doi.org/10.2113/175.2.147.

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Abstract The eastern part of the “Seuil du Poitou” area had been selected by the French National radioactive waste management agency (ANDRA) as a potential site for building an underground laboratory in granitic rocks. 17 cored bore holes, completed by petrographical, geochemical [Cuney et al., 2001], geophysical [Virlogeux et al., 1999] and structural [Gros and Genter, 1999] studies, have provided a detailed knowledge of the Charroux-Civray complex, hidden under a Jurassic sedimentary cover. Three main types of magmas were distinguished : medium-K calk-alkaline, high-K calk-alkaline and peral
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Gorin, Andrew L., Joshua M. Gorin, Marie Bergelin, and David L. Shuster. "An optimization tool for identifying multiple-diffusion domain model parameters." Geochronology 6, no. 4 (2024): 521–40. http://dx.doi.org/10.5194/gchron-6-521-2024.

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Abstract. The multiple-diffusion domain (MDD) model empirically describes the diffusive behavior of noble gases in some terrestrial materials and has been commonly used to interpret 40Ar/39Ar stepwise degassing observations in K-feldspar. When applied in this manner, the MDD model can be used to test crustal exhumation scenarios by identifying the permissible thermal paths a rock sample could have undergone over geologic time, assuming the diffusive properties of Ar within the mineral are accurately understood. More generally, the MDD model provides a framework for quantifying the temperature-
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Dissertations / Theses on the topic "Géochronologie K-Ar et 40Ar/39Ar"

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Gaylor, Jonathan. "40Ar/39Ar Dating of the Late Cretaceous." Phd thesis, Université Paris Sud - Paris XI, 2013. http://tel.archives-ouvertes.fr/tel-01017165.

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As part of the wider European GTS Next project, I propose new constraints on the ages of the Late Cretaceous, derived from a multitude of geochronological techniques, and successful stratigraphic interpretations from Canada and Japan. In the Western Canada Sedimentary Basin, we propose a new constraint on the age of the K/Pg boundary in the Red Deer River section (Alberta, Canada). We were able to cyclostratigraphically tune sediments in a non-marine, fluvial environment utilising high-resolution proxy records suggesting a 11-12 precession related cyclicity. Assuming the 40Ar/39Ar method is in
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Hevia, Cruz Francisco. "Climatic and landscape evolution of the Azores over the past million years." Electronic Thesis or Diss., université Paris-Saclay, 2023. http://www.theses.fr/2023UPASJ035.

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L'évolution des îles volcaniques résulte d'interactions complexes entre croissance des volcans et processus de destruction (éruptions explosives, glissements de terrain, érosion fluviale, altération). Les changements climatiques peuvent influencer ces processus sur des échelles variées. A l’échelle événementielle, des précipitations intenses peuvent engendrer des épisodes érosifs extrêmes. Sur le long-terme, des variations des taux d'altération, sensibles aux précipitations et à la température, peuvent impacter la fertilité des sols et le cycle global du carbone.Les îles volcaniques des Açores
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Coulié, Emmanuel. "Chronologie 40Ar/39Ar et K/Ar de la dislocation du plateau éthiopien et de la déchirure continentale à la corne de l'Afrique depuis 30 Ma." Paris 11, 2001. http://www.theses.fr/2001PA112284.

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Ce travail de thèse présente le développement et la mise au point d'un procédé original pour la datation par la technique 40_Ar/39_Ar. Le cœur de ce système, un spectromètre de masse utilisant la collection simultanée des cinq isotopes de l'argon, est aujourd'hui unique à l'échelle internationale. Tout d'abord testé et validé sur des échantillons géologiques standard, ce système a permis de réaliser, dans sa configuration actuelle, des analyses de grande qualité sur les roches volcaniques de l'Ethiopie, avec une reproductibilité analytique de l'ordre de 0. 2%. Il est maintenant communément adm
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Favier, Alexiane. "Évolution spatio-temporelle de l'hydrothermalisme dans la plaque supérieure de l'arc des Petites Antilles en Guadeloupe : applications aux systèmes géothermaux." Thesis, Antilles, 2019. http://www.theses.fr/2019ANTI0401.

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Pour poursuivre le développement de la géothermie de haute-enthalpie dans l’arc insulaire des Petites Antilles il faut d’une part identifier de nouvelles zones potentielles et d’autre part mieux comprendre le fonctionnement des réservoirs géothermaux. Dans ce cadre, l’objectif de cette thèse est de caractériser l’évolution spatio-temporelle de l’hydrothermalisme au niveau de la plaque supérieure de l’arc en Guadeloupe au travers d’une analyse pluridisciplinaire (études structurales, géochimiques, minéralogiques, pétrologiques et géochronologiques) des complexes volcaniques les plus anciens de
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Book chapters on the topic "Géochronologie K-Ar et 40Ar/39Ar"

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John, David A., Brent D. Turrin, and Robert J. Miller. "New K-Ar and 40Ar/39Ar Ages of Plutonism, Hydrothermal Alteration, and Mineralization in the Central Wasatch Mountains, Utah." In Geology and Ore Deposits of the Oquirrh and Wasatch Mountains, Utah. Society of Economic Geologists, 1998. http://dx.doi.org/10.5382/gb.29.04.

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Abstract Twenty-one new K-Ar and 10 new 40Ar/39Ar ages are reported for igneous and hydrothermal minerals from intrusive rocks of the Wasatch igneous belt in the central Wasatch Mountains. Interpretation of our new data combined with previously published K-Ar ages and with new 40Ar/39Ar and U-Pb ages reported by Vogel et al. (1997) suggests that the Clayton Peak stock was emplaced at about 36 to 35 Ma, the Alta stock at about 35 to 33 Ma, and the Little Cottonwood stock at about 31 to 30 Ma. Biotite K-Ar ages progressively increase from west to east in the Little Cottonwood stock, which is con
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