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  • 1
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    Les clefs des songes médiévales : xiiie-xve siècles (2021)
    Presses universitaires de Strasbourg
    Details
    Publication Date: 2024-03-25
    Description: Les clefs des songes du xiiie au xve siècles ne sont pas là pour ouvrir la voie à la parole du rêveur. Bien au contraire, des interprétations stéréotypées et orientées l'enferment à double tour dans un discours dûment orchestré. Les songes foisonnants de ciel ou de terre, d'anges, de saints, d'astres, de nuées, de feu, d'eau, de végétaux, d'animaux, de l'une ou l'autre partie du corps, sont pris dans les réseaux d'une idéologie qui commande la représentation de soi et des autres dans l'intérêt de la classe dominante aristocratique.
    Keywords: D1-2009 ; histoire médiévale ; histoire ; thema EDItEUR::D Biography, Literature and Literary studies::D Biography, Literature and Literary studies::DN Biography and non-fiction prose
    Language: French
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  • 2
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    Volcanically hosted venting with indications of ultramafic influence at Aurora hydrothermal field on Gakkel Ridge (2022)
    Springer Science and Business Media LLC
    In:  EPIC3Nature Communications, Springer Science and Business Media LLC, 13(1), pp. 6517-, ISSN: 2041-1723
    Details
    Publication Date: 2023-06-21
    Description: The Aurora hydrothermal system, Arctic Ocean, hosts active submarine venting within an extensive field of relict mineral deposits. Here we show the site is associated with a neovolcanic mound located within the Gakkel Ridge rift-valley floor, but deep-tow camera and sidescan surveys reveal the site to be ≥100 m across—unusually large for a volcanically hosted vent on a slow-spreading ridge and more comparable to tectonically hosted systems that require large time-integrated heat-fluxes to form. The hydrothermal plume emanating from Aurora exhibits much higher dissolved CH〈jats:sub〉4〈/jats:sub〉/Mn values than typical basalt-hosted hydrothermal systems and, instead, closely resembles those of high-temperature ultramafic-influenced vents at slow-spreading ridges. We hypothesize that deep-penetrating fluid circulation may have sustained the prolonged venting evident at the Aurora hydrothermal field with a hydrothermal convection cell that can access ultramafic lithologies underlying anomalously thin ocean crust at this ultraslow spreading ridge setting. Our findings have implications for ultra-slow ridge cooling, global marine mineral distributions, and the diversity of geologic settings that can host abiotic organic synthesis - pertinent to the search for life beyond Earth.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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    PAPER (OA)
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