Feb 04

Foreland exhumation controlled by crustal thickening in the Western Alps

In alpine-type collision belts, deformation of the foreland may occur as a result of forward propagation of thrusting and is generally associated with thin-skinned deformation mobilizing the sedimentary cover in fold-and-thrust belts. Locally, foreland deformation can involve crustal-scale thrusting and produce large-scale exhumation of crystalline basement resulting in significant relief generation. In this study, we …

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Permanent link to this article: http://hebergement.u-psud.fr/reliefetbassin/index.php/archive/foreland-exhumation-controlled-by-crustal-thickening-in-the-western-alps/

Jan 28

Linking early diagenesis and sedimentary facies to sequence stratigraphy on a prograding oolitic wedge: The Bathonian of western France (Aquitaine Basin)

To improve the understanding of the distribution of reservoir properties along carbonate platform margins, the connection between facies, sequence stratigraphy, and early diagenesis of discontinuities along the Bathonian prograding oolitic wedge of the northeastern Aquitaine platform was investigated. Eight facies are distributed along a 50 km-outcropping transect in (1) toe-of-slope, (2) infralittoral prograding oolitic wedge, (3) …

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Permanent link to this article: http://hebergement.u-psud.fr/reliefetbassin/index.php/archive/linking-early-diagenesis-and-sedimentary-facies-to-sequence-stratigraphy-on-a-prograding-oolitic-wedge-the-bathonian-of-western-france-aquitaine-basin/

Nov 08

Sedimentological control on the diagenesis and reservoir quality of tidal sandstones of the Upper Cape Hay Formation (Permian, Bonaparte Basin, Australia)

The deep siliciclastic reservoir (>3500 m) of the Upper Cape Hay Formation of the Bonaparte Basin (Petrel gas field, Petrel sub-basin, Permian) exhibits wide heterogeneity in porosity (2–26%) and permeability (0.001–2500 mD). To investigate this variability, 42 samples were taken from five wells drilled through this formation. Six facies were identified from core descriptions and microscopic …

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Permanent link to this article: http://hebergement.u-psud.fr/reliefetbassin/index.php/archive/sedimentological-control-on-the-diagenesis-and-reservoir-quality-of-tidal-sandstones-of-the-upper-cape-hay-formation-permian-bonaparte-basin-australia/

Jan 10

Genesis of Carbonate- and siliciclastic-hosted stratabound fluorite deposits in Burgundy

Stratabound fluorite deposits occur at the unconformity between the Variscan crystalline basement and the Mesozoic sandstone, conglomerate, limestone, and dolomite rocks of the Morvan Massif in central Burgundy. This study describes their petrographic characteristics in an attempt to determine the nature and temperature of mineralizing fluids in order to better understand the fluid migrations that …

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Permanent link to this article: http://hebergement.u-psud.fr/reliefetbassin/index.php/archive/genesis-of-carbonate-and-siliciclastic-hosted-stratabound-fluorite-deposits-in-burgundy/

Jan 09

Constraints on the DUPAL anomaly from helium isotope systematics in the Southwest Indian mid-ocean ridge basalts

Helium isotopes were measured on 53 glass samples from the South West Indian Ridge from 32 to 68° E. The 4He/3He ratio is heterogeneous along the SWIR, with values down to 74,000 and up to 114,000 (R/Ra between 9.8 and 6.3), more variable than for helium isotope systematics measured at other mid-oceanic ridge systems, far from …

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Permanent link to this article: http://hebergement.u-psud.fr/reliefetbassin/index.php/archive/constraints-on-the-dupal-anomaly-from-helium-isotope-systematics-in-the-southwest-indian-mid-ocean-ridge-basalts/

May 10

Paper at Gondwana Research: Lithospheric structure of the North China Craton

The paper “Lithospheric structure of the North China Craton: Integrated gravity, geoid and topography data” by Ya XU, Hermann Zeyen etc. has been accepted for publication in Gondwana Research. The joint inversion of gravity, geoid and topography data was used to study the crust and lithosphere structure of North China Craton. It compared the different …

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Permanent link to this article: http://hebergement.u-psud.fr/reliefetbassin/index.php/archive/paper-at-gondwana-research/

May 03

Stratabound Fluorite deposit origin (Burgundy, France)

World-class stratabound fluorite deposits are spatially associated with the basement/sediment unconformity of the intracratonic Paris Basin and the Morvan Massif in Burgundy (France). The reserves are estimated to be about 5.5 Mt of fluorite within six fluorite deposits. In this study, we aim to determine the age of the major fluorite mineralization event of the Pierre-Perthuis …

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Permanent link to this article: http://hebergement.u-psud.fr/reliefetbassin/index.php/archive/stratabound-fluorite-deposit-origin-burgundy-france/

Mar 22

PhD position: “North Atlantic and Arctic onshore and offshore margin evolution: viewed by low temperature thermochronology and modelling”

North Atlantic and Arctic onshore and offshore margin evolution: viewed by low temperature thermochronology and modelling Voie d’admission : Concours d’accès aux contrats doctoraux des établissements d’enseignement supérieur Spécialité Terre solide : géodynamique des enveloppes supérieures, paléobiosphère Ecole Doctorale SMEMaG – Sciences mécaniques et énergétiques, matériaux, géosciences Titre Evolution des domaines onshore et offshore des &hellip Continue reading »

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Mar 22

PhD position: “Processes and causes of rock exhumation in the context of intraplate oceanic setting constrained by low to moderate temperature thermochronology”

Processes and causes of rock exhumation in the context of intraplate oceanic setting constrained by low to moderate temperature thermochronology   Voie d’admission : Concours d’accès aux contrats doctoraux des établissements d’enseignement supérieur Spécialité Structure et évolution de la terre et des autres planetes Ecole Doctorale SMEMaG – Sciences mécaniques et énergétiques, matériaux, géosciences Titre …

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Jan 16

Postdoctoral position

Computational chemistry: Molecular simulations of the He / Ne diffusion in iron oxide 18 months postdoctoral position is opened at the Institut de Physique Nucléaire d’Orsay 91340 (IPNO – Univ. Paris-Sud, France) under the supervision of Dr. Jerome Roques and Cécile Gautheron (GEOPS – Univ. Paris-Sud) Starting date: January 2015 The candidate will be involved …

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Jan 16

Session programme of the French meeting of sedimentology

The 15th French meeting of sedimentology will take place at Chambéry from the 13th to 17th October 2015. You can find the session programme at: http://asf2015.sciencesconf.org/resource/page/id/44 The Mountain Relief, Basin and Resources team will be involved with the animation of two sessions: Session 16 – Reservoir Architecture and diagenesis – Brigaud B. and J.-P. Girard Session …

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Dec 14

New PhD student in thermochronolgy and Geodynamics

We are pleased to welcome Alice Recanati, new PhD student in our team. She will work on low temperature thermochronology (U-Th) and geodynamics of passive margins and active mountains (North Africa and South-East Africa). This thesis will be supervised by Cecile Gautheron and Yves  Missenard. So we currently eight ongoing thesis in our team “Relief, …

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Nov 18

AGBP congress

Find summaries of team’s work presented at the AGBP congress (november 2014) in Paris. PDF  

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Nov 18

New article to Marine and Petroleum Geology

The article “Characterization and origin of permeability-porosity heterogeneity in shallow-marine carbonates : from core scale to 3D reservoir dimension (Middle Jurassic, Paris Basin, France)” by Benjamin Brigaud Benoit Vincent, Christophe Durlet, Jean-François Deconinck Emmanuel Jobard, Niel Pickard, Beatrice and Philippe Yven Landrein is ready for publication to Marine and Petroleum Geology.

Permanent link to this article: http://hebergement.u-psud.fr/reliefetbassin/index.php/archive/new-article-to-marine-and-petroleum-geology/

Aug 29

Feedback to the thematic meeting of the French Association of Sedimentologists

The 4th July2014, the thematic meeting of the French Association of Sedimentologists organized by the Geosciences Paris Sud (GEOPS) Laboratory and entitled “Diagenesis: recent advances and perspectives” was attended by 110 people in Orsay. This meeting was organized in honor to Maurice Pagel (Emeritus Professor at the University Paris-Sud), which focused much of his career …

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