Catherine Deniel

Laboratoire Magmas et Volcans

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Alain Gourgaud

Laboratoire Magmas et Volcans

Pierre Boivin

Centre National de la Recherche Scientifique

Hervé Guillou

Commissariat à l'Énergie Atomique et aux Énergies Alternatives

Jacques‐Marie Bardintzeff

Centre National de la Recherche Scientifique

Didier Miallier

Clermont Université

Christian Coulon

Louisiana State University Agricultural Center

Philippe Vidal

Identités et Différenciation de l'Environnement des Espaces et des Sociétés

Bernard Platevoet

Centre National de la Recherche Scientifique

Patrick Bachèlery

Laboratoire Magmas et Volcans

Teresa Trua

University of Parma

Cooperative Institutions

Centre National de la Recherche Scientifique

Laboratoire Magmas et Volcans

Université Clermont Auvergne

Institut de Recherche pour le Développement

Université Paris Cité

Clermont Université

Institut de physique du globe de Paris

Observatoire de Physique du Globe de Clermont-Ferrand

Sorbonne Université

Centre de Recherches Pétrographiques et Géochimiques

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Age and nature of deposits on the submarine flanks of Piton de la Fournaise (Reunion Island)

Journal of Volcanology and Geothermal Research (2009)

Jean‐François Lénat Pierre Boivin Catherine Deniel Pierre‐Yves Gillot Patrick Bachèlery

Subaerial

Pillow lava

Breccia

Lithology

10.1016/j.jvolgeores.2009.01.013

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Citations (18)

Crustal control in the genesis of Plio-Quaternary bimodal magmatism of the Main Ethiopian Rift: geochemical and isotopic (Sr, Nd, Pb) evidence — reply

Chemical Geology (2000)

Catherine Deniel Teresa Trua R. Mazzuoli

10.1016/s0009-2541(00)00183-2

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Citations (6)

230Th-238U radioactive disequilibrium in some differentiated lavas from piton des neiges (Reunion Island)

Chemical Geology (1988)

Catherine Deniel

Disequilibrium

10.1016/0009-2541(88)90556-6

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Citations (3)

He, Ar, Sr, Nd and Pb isotopes in volcanic rocks from Afar: Evidence for a primitive mantle component and constraints on magmatic sources.

GEOCHEMICAL JOURNAL (1993)

Bernard Marty Irma Appora Jean‐Alix Barrat Catherine Deniel Pierre Vellutini

He, Ar, Sr, Nd and Pb isotopic ratios have been determined for a set of submarine basaltic glasses from the Gulf of Tadjoura and subaerial lavas from Afar, Republic of Djibuti. Rare gases were recovered by vacuum crushing and analysed with a new analytical system. Helium isotopic ratios up to 15 Ra show the occurrence of a "high 3He" hot spot beneath Afar and indicate the occurrence of a plume originating from a gas-rich, presumably deep, region of the mantle. He-Ar isotope systematics indicate a mixing between three geochemical end-members: the plume component, enriched in 3He, a radiogenic, possibly crustal, component, and the atmosphere. Low 40Ar/36Ar ratios are interpreted as the result of selective atmospheric contamination of Afar magmas, but the process of contamination is unclear. In a He-Sr-Nd-Pb space, Afar data are plotted in a field similar to basic lavas emitted in Iceland (Djibuti territory) and in the Reykjanes Ridge (Gulf of Tadjoura) and differ by their He isotopic ratios from lavas emitted in EM (e.g., Gough and Tristan da Cunha) and HIMU (e.g., Saint Helena and Tubuaii) hot spots analysed so far.

Mantle plume

Radiogenic nuclide

Subaerial

10.2343/geochemj.27.219

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Citations (65)

Isotopic study of the Manaslu granite (Himalaya, Nepal): inferences on the age and source of Himalayan leucogranites

Contributions to Mineralogy and Petrology (1987)

Catherine Deniel Philippe Vidal Angel Fernandez Patrick Le Fort Jean-Jacques Peucat

Leucogranite

Isochron dating

10.1007/bf00375529

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Citations (383)

The Cenozoic volcanic province of Tibesti (Sahara of Chad): major units, chronology, and structural features

Bulletin of Volcanology (2015)

Catherine Deniel Pierre Vincent Alain Beauvilain Alain Gourgaud

Volcanic cone

Volcanic plateau

Caldera

Cinder cone

Stratovolcano

Silicic

Lava field

10.1007/s00445-015-0955-6

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Citations (19)

Miocene to recent alkaline volcanism between Al Haruj and Waw an Namous (southern Libya)

International Journal of Earth Sciences (2011)

Jacques‐Marie Bardintzeff Catherine Deniel Hervé Guillou Bernard Platevoet Philippe Télouk

Metasomatism

Peridotite

Xenolith

Amphibole

10.1007/s00531-011-0708-5

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Citations (35)

Crustal control in the genesis of Plio-Quaternary bimodal magmatism of the Main Ethiopian Rift (MER): geochemical and isotopic (Sr, Nd, Pb) evidence

Chemical Geology (1999)

Teresa Trua Catherine Deniel R. Mazzuoli

Felsic

Pyroxene

Amphibole

10.1016/s0009-2541(98)00174-0

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Citations (170)

Volcanologie de la Chaîne des Puys Massif Central Français

Pierre Boivin Jean-Claude Besson Danielle Briot Catherine Deniel Alain Gourgaud

Ce guide, bilingue, se compose d'un livret et d'une carte geologique. La carte geologique est dessinee sur le fond topographique IGN 2016, a l'echelle 1/25 000 complete par des donnees provenant de Lidar.

Source

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Citations (5)

High Th/U ratios in subcontinental lithospheric mantle: mass spectrometric measurement of Th isotopes in Gaussberg lamproites

Earth and Planetary Science Letters (1992)

Ross W. Williams K. D. Collerson James B. Gill Catherine Deniel

Metasomatism

Asthenosphere

10.1016/0012-821x(92)90183-v

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Citations (93)