Bruno Goffé

Centre National de la Recherche Scientifique

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Fabrice Brunet

Institut de Recherche pour le Développement

Laurent Jolivet

Sorbonne Université

Olivier Beyssac

Institut de minéralogie, de physique des matériaux et de cosmochimie

André Michard

Université Paris-Saclay

Gaëtan Rimmelé

Total (France)

Nathaniel Findling

Institut des Sciences de la Terre

Christophe Poinssot

Bureau de Recherches Géologiques et Minières

Omar Saddiqi

University of Hassan II Casablanca

Romain Bousquet

Sorbonne Université

Roland Oberhänsli

University of Potsdam

Cooperative Institutions

Centre National de la Recherche Scientifique

124

Sorbonne Université

Université Paris Cité

Institut de Recherche pour le Développement

Institut des Sciences de la Terre

Laboratoire de Géologie de l’École Normale Supérieure

École Normale Supérieure - PSL

Laboratoire de Physique de l'ENS

Université Savoie Mont Blanc

Université Gustave Eiffel

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Zeolitization of basalts in subaqueous freshwater settings: Field observations and experimental study

Geochimica et Cosmochimica Acta (1993)

Christian Robert Bruno Goffé

Massif

10.1016/0016-7037(93)90142-j

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Citations (27)

Tectonic and metamorphic evolution of the Temsamane units, External Rif (northern Morocco)

F. Negro Philippe Agard Bruno Goffé Omar Saddiqi

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Citations (3)

Subduction Tectonics and Exhumation of Metamorphic Rocks In The Mediterranean Region

EGS General Assembly Conference Abstracts (2002)

Laurent Jolivet Claudio Faccenna Bruno Goffé E. Burov Philippe Agard

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L'énergie à découvert

Rémy Mosseri Catherine Jeandel Pascal Brault Bruno Goffé Jean Charles Hourcade

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Les associations minéralogiques des roches hyperalumineuses du Dogger de Vanoise. Leur signification dans le métamorphisme régional

Bulletin de la Société française de Minéralogie et de Cristallographie (1977)

Bruno Goffé Pierre Saliot

The hyperaluminous rocks from Vanoise occur on the western border of the basement of southern Vanoise (internal part of Briançonnais zone) and on the « zone houillère » (external part of Briançonnais) . The most characteristic assemblages are : 1) Pyrophyllite-diaspore-magnesiocarpholite ± chloritoïd ± paragonite ± chlorite + white mica. 2) Chloritoïd-white mica-paragonite ± chlorite. The cracks with a paragonite filling are abundant in all the hyperaluminous rocks and they suggest a sodic enrichment, the role of which is discussed as for the unstability of some minerals. Due to the coexistence of diaspore-pyrophyllite and the Si⁴ = 3,2 content of phengite the temperature and pressure of metamorphism was around 360° C and 5 kb.

Pyrophyllite

Phengite

10.3406/bulmi.1977.7153

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Citations (9)

Contrasted metamorphic evolutions in thrusted cover units of the Briançonnais zone (French Alps): A model for the conservation of HP-LT metamorphic mineral assemblages

Earth and Planetary Science Letters (1984)

Bruno Goffé Bruce Velde

Lawsonite

Greenschist

Blueschist

Pyrophyllite

10.1016/0012-821x(84)90166-3

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Citations (65)

Explanatory notes to the map : metamorphic structure of the Alps transition from the Western to the Central Alps

Romain Bousquet Martin Engi G. Gosso Roland Oberhänsli A. Berger

10.7892/boris.86506

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Citations (36)

HRTEM and Raman spectroscopy characterization of experimental graphitization under pressure.

Olivier Beyssac Jean‐Noël Rouzaud Fabrice Brunet J. P. Petitet C. Clinard

Characterization

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Citations (1)

Zeolitization of a basaltic flow in a continental environment : an example of mass transfer under thermal control

Bulletin de Minéralogie (1988)

Christian Robert Bruno Goffé Pierre Saliot

The zeolitization of basanite lava flows in the Plateau des Coirons, Ardèche, France, is controlled by the initial location of the flows in paleorivers and by the thermal evolution of the flows during cooling. It predates the development of a well-defined columnar jointing. The zeolites (phillipsite and chabazite) are associated with ferro-magnesian or aluminous smectites (and sometimes carbonates) and crystallize in basalt vesicles and veinlets, showing chemical variations between the top and the deeply altered base of the flow. Their distribution is accounted for by hydrothermal mass transfer driven by the temperature variations within the flow during cooling : — The centre of the flow is at first hotter than the base. Ferro-magnesian smectites crystallize in the median part and aluminous smectites crystallize at the base of the flow. — Then, the base of the flow becomes the hotter zone. Phillipsite crystallizes in the median part and ferro-magnesian smectites in the lower part of the flow. — The end of cooling leads to a more general development of phillipsite and chabazite crystallization at the base.

Chabazite

10.3406/bulmi.1988.8085

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Citations (12)

Effects of pressure on thermal evolution of organic matter

AAPG Bulletin (1989)

Bruno Goffé Florent Dominé

In the internal metamorphic zones of the French Alps, organic matter-bearing terrestrial sediments of Dogger age underwent an Eocene high-pressure metamorphic event (607 kbar at 300{degree}-330{degree}C). These metasediments now contain, trapped in metamorphic minerals, low evolved kerogen (small extent of molecular orientation), heavy hydrocarbon compounds (aromatic and aliphatic up to C{sup 30} with traces of pristane and phytane molecules), and gases with low C{sup 1}/C{sup 2}-C{sup 6} ratios. However, the degree of organic maturation (equivalent to catagenesis) is much less than that predicted by classical models. This field example indicates that the oil window opens with increasing pressure. Experimental pyrolysis of supercritical hexane performed in a closed, constant-pressure gold reactor at 210-15,600 bars pressure range and 290{degree}-365{degree}C, clearly demonstrates the important influence of pressure on the product distribution of hexane pyrolysis: as pressure is increased, relative light product yields decrease and heavy products increase. This can be interpreted mainly by considering the activation volumes of the reactions involved. In conclusion, the experimental and natural examples presented here indicate that the rate of thermal maturation decreases with pressure.

Phytane

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Hexane

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