Publications et données de Lukas P.

Documents écrit par Lukas P. (0) | parle de Lukas P. (13)

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Rozenits (Roženić, Rozenich), P. Lukas (Jakob)

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(21 avr. 2011)

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(1784 - 1835), Historiker

Holl, P. Lukas (Leo)

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(21 avr. 2011)

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(1903 - 1950), Publizist und Schriftsteller

Ingigian, P. Lukas

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(21 avr. 2011)

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(1758 - 1833), Geograph und Historiker

Whiteschist genesis through metasomatism and metamorphism in the Monte Rosa nappe (Western Alps)

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Cindy Luisier et al.

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Whiteschists from the Monte Rosa Nappe were examined in the field as well as with petrographic, geochemical, and isotopic methods to constrain the controversial origin of these rocks in their Alpine metamorphic context. Whiteschists occur as ellipsoidal-shaped, decametric-sized bodies, within a Perm...

Hydrogen diffusion mechanisms in quartz: insights from H–Li, 2H–H and 2H–H–Li exchange experiments

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Michael C. Jollands et al.

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The diffusivity and diffusion mechanisms of hydrogen together with with deuterium and lithium, parallel to the c axis of quartz, were investigated experimentally at 800°C, 0.1 GPa with the activity of H2O or 2H2O ≈ 1 [2H is used throughout this work to describe deuterium rather than D, to avoid conf...

Rapid grain boundary diffusion in foraminifera tests biases paleotemperature records

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Arthur Adams et al. (27 avr. 2023)

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The oxygen isotopic compositions of fossil foraminifera tests constitute a continuous proxy record of deep-ocean and sea-surface temperatures spanning the last 120 million years. Here, by incubating foraminifera tests in 18O-enriched artificial seawater analogues, we demonstrate that the oxygen isot...

Fast and pervasive diagenetic isotope exchange in foraminifera tests is species-dependent

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Deyanira Cisneros-Lazaro et al.

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Oxygen isotope compositions of fossil foraminifera tests are commonly used proxies for ocean paleotemperatures, with reconstructions spanning the last 112 million years. However, the isotopic composition of these calcitic tests can be substantially altered during diagenesis without discernible textu...

Mariastein, Benediktinerkloster, APN 2 Antiphonar, 2. Teil : Antiphonaire

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Alpine peak pressure and tectono-metamorphic history of the Monte Rosa nappe: evidence from the cirque du Véraz, upper Ayas valley, Italy

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Joshua D. Vaughan-Hammon et al.

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Peak Alpine metamorphic conditions from staurolite bearing metapelites in the Monte Rosa nappe (Central European Alps) and geodynamic implications

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Joshua D Vaughan Hammon et al. (11 févr. 2021)

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Petrologic and stable isotopic studies of a fossil hydrothermal system in ultramafic environment (Chenaillet ophicalcites, Western Alps, France): Processes of carbonate cementation

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