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See detailThe Amik Lake in Southern Turkey over the last 4000 years, a new paleoseismological record of ruptures along the Northern Dead Sea Fault
Hubert, Aurelia ULg; El Ouahabi, Meriam ULg; Lebeau, Hèlène et al

Poster (2014, June 30)

The study focuses on the sedimentary record of the Amik Lake occupying the central part of a pull-apart basin. The Basin is crossed by The Dead Sea Fault (DSF), a major neotectonic structure in the Middle ... [more ▼]

The study focuses on the sedimentary record of the Amik Lake occupying the central part of a pull-apart basin. The Basin is crossed by The Dead Sea Fault (DSF), a major neotectonic structure in the Middle East extending from the Red Sea in the south to the East Anatolian Fault Zone in the north. Around the Amik Basin, continuous human occupation is attested since 6000-7000 BC. Indeed the low-lying Amuq plain is covered by tell settlements first explored by Robert Braidwood in the 1930s. Our objective in this presentation is to look at major paleo-environmental changes recorded in the Amik Lake over the last 4000 years and in particular its potential paleoseimic sedimentary record. The lake has been drained and progressively dried up since the mid-50s so that it is not watered during the summer season and constitutes a unique opportunity to collect sediment records. Sediments were collected at 1 cm to 2 cm intervals in a trench and in cores up to a depth of 5 meters in the clay deposits. A diverse array of complementary methods is applied to study the records: magnetic susceptibility, grain size, organic matter and inorganic carbon (L.O.I), XRD mineralogy, XRF geochemistry, carbon geochemistry and clay mineralogy. The age of the record is constrained combining radionuclide and radiocarbon dating. The sedimentary record shows large earthquake related structural disturbances and smaller siliciclastic sedimentary events. The siliciclastic input would be related to enhanced detritical sedimentation related to earthquake shaking. The latter is further investigated looking at intensities and shake maps related to the last 19th century M>7 earthquakes in the area and landslide prone area in the lake catchment. [less ▲]

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See detailFe and Mg Isotope Fractionation in Olivine from the NWA 1068 Shergottite
Collinet, Max ULg; Charlier, Bernard ULg; Namur, Olivier et al

Conference (2014, June 09)

Detailed reference viewed: 16 (3 ULg)
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See detailA geochemical and petrological study of the Late Cretaceous banatites from the Apuseni Mountains, Romania
Vander Auwera, Jacqueline ULg; Berza, Tudor; Dupont, Alain et al

Poster (2014, April)

Detailed reference viewed: 7 (2 ULg)
See detailAlkaline Primary Melts from the Primitive Mantle of Mars
Collinet, Max ULg; Médard, Etienne; Vander Auwera, Jacqueline ULg et al

Poster (2014, March)

Detailed reference viewed: 27 (11 ULg)
See detailPaleoenvironmental record of the Amik Basin (Amuq Plain, Southern Turkey) over the last 4000 years
Hubert, Aurelia ULg; El Ouahabi, Meriam ULg; Lebeau, Hélène ULg et al

Poster (2014, February 04)

Continous human occupation is attested in the Amik Basin since 6000-7000 BC. The low-lying Amuq plain is covered by tell settlements first explored by Robert Braidwood in the 1930s. The Basin also is ... [more ▼]

Continous human occupation is attested in the Amik Basin since 6000-7000 BC. The low-lying Amuq plain is covered by tell settlements first explored by Robert Braidwood in the 1930s. The Basin also is crossed by The Dead Sea Fault (DSF), a major neotectonic structure in the Middle East extending from the Red Sea in the south to Turkey in the north. The study focuses on the sedimentary record of the Amik Lake occupying the central part of the Basin. Our objective is to constrain major paleo-environmental changes in the area over the last 4000 years and assess possible human impact. The lake has been drained and progressively dried up since the mid-50s so that it is not watered during the summer season and constitutes a unique opportunity to collect sediment records. Sediments were collected at 1 cm to 2 cm intervals in a trench and in cores up to a depth of 5 meters in the clay deposits. A diverse array of complementary methods is applied to study the records: magnetic susceptibility, grain size, organic matter and inorganic carbon (L.O.I), XRD mineralogy, XRF geochemistry, carbon geochemistry. The age of the record is constrained combining radionuclide and radiocarbon dating. The record shows two intense phases of soil erosion with enrichments in Chromium and Nickel. The most recent erosion phase might be linked with enhanced development during the Roman and the growth of the Antioch City. The oldest one would occur around 3000 BC. The record also allows reconstructing past lake level variations and discusses the results in comparison with variations of the Dead Sea. [less ▲]

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See detailVoyage au Centre de la Terre
Boulvain, Frédéric ULg; Vander Auwera, Jacqueline ULg

Book published by Académie royale de Belgique (2013)

L’intérieur de notre planète a toujours été une source d’effroi ou de fascination. Ceci d’autant plus que l’observation directe ne permet d’accéder qu’à moins de 1/500 de son rayon ! Notre connaissance de ... [more ▼]

L’intérieur de notre planète a toujours été une source d’effroi ou de fascination. Ceci d’autant plus que l’observation directe ne permet d’accéder qu’à moins de 1/500 de son rayon ! Notre connaissance de l’intérieur de la Terre provient donc soit de mesures géophysiques effectuées lors des séismes, soit d’expériences de cristallisation de minéraux sous des pressions et températures contrôlées, soit encore de l’observation de certaines météorites, censées représenter des fragments de l’intérieur d’une planète semblable à la nôtre. Après avoir abordé, via la tectonique des plaques, la composition et le fonctionnement de la croûte superficielle de notre planète, sa structure interne (manteau, noyau) est envisagée. Enfin, quelques informations quant au magnétisme terrestre permettent de comprendre son origine et son utilisation en tant que marqueur de la mobilité continentale. [less ▲]

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See detailAnhydrous melting of a primitive martian mantle: new experiments at 1-2 GPa
Collinet, Max ULg; Médard, Etienne; Vander Auwera, Jacqueline ULg et al

Conference (2012)

Detailed reference viewed: 49 (11 ULg)
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See detailA mineralogical and microstructural study of 7 eucrites (A-881394, Y-791195, Y-981617, Y-790266, Y-791186, Y-792510, Y-793591)
Foucart, Hélène ULg; Holness, Marian; Namur, Olivier ULg et al

Conference (2012)

The mineral chemistry and the detailed microstructure of seven eucrites (A-881394, Y-791195, Y-981617, Y-790266, Y-791186, Y-792510 and Y-793591) of the NIPR collection of Antarctic meteorites have been ... [more ▼]

The mineral chemistry and the detailed microstructure of seven eucrites (A-881394, Y-791195, Y-981617, Y-790266, Y-791186, Y-792510 and Y-793591) of the NIPR collection of Antarctic meteorites have been examined in order to constrain their modal mineralogy and chemistry and to explore the potential of microstructural analysis as a new tool for interpreting meteorites. [less ▲]

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Peer Reviewed
See detailPrediction of plagioclase-melt equilibria in anhydrous silicate melts at 1 atm
Namur, Olivier ULg; Charlier, Bernard ULg; Toplis, Michael et al

in Contributions to Mineralogy & Petrology (2012), 163

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See detailGéologie de terrain. De l'affleurement au concept
Boulvain, Frédéric ULg; Vander Auwera, Jacqueline ULg

Book published by Ellipses (2011)

Un livre pour apprendre et mettre en pratique la géologie de terrain, base de toutes les autres disciplines de la géologie. Outre son utilité scientifique, la géologie de terrain est indispensable aux ... [more ▼]

Un livre pour apprendre et mettre en pratique la géologie de terrain, base de toutes les autres disciplines de la géologie. Outre son utilité scientifique, la géologie de terrain est indispensable aux recherches et exploitations de matières utiles et aux travaux de génie civil. En outre, une gestion efficace et durable de l’environnement ne se fait pas sans une bonne connaissance du sous-sol. Cet ouvrage fait le point sur les différents types de roches rencontrés sur le terrain, sur leur identification et sur leur classification. Les bases du levé géologique sont explicitées également. On passe en revue le matériel nécessaire, la préparation d’une campagne de terrain, les méthodes de levé proprement dites et les données à récolter. Deux chapitres sont consacrés au tracé et à l’interprétation des cartes géologiques, en mettant en évidence les différents apports que constituent la géomorphologie, la photographie aérienne, la pédologie, les méthodes géométriques. Des exercices et cas concrets sont étudiés en détail. [less ▲]

Detailed reference viewed: 171 (38 ULg)