Les marchés publics : opportunités et contraintes

Conference given outside the academic context (2012)

Les marchés publics des institutions de l’Union européenne – chronique des arrêts du tribunal de l’UE

in Marchés et Contrats Publics = Overheidsopdrachten en -Overeenkomsten (2012), 2012/2

marchés publics et économie sociale: l'union impossible?

in Actualités du Droit (2001), 2

L'article envisage la question de l'introduction de considérations sociales dans les marchés publics: les obstacles et la technique de la clause sociale.

Les marchés publics par l'analyse de cas : n°1 à 10

Learning material (2009)

support écrit des travaux pratiques sous forme de casus et de propositions de résolution

Marcus Milwright, The Fortress of the Raven. Karak in the Middle Islamic Period (1100-1650), Leyde-Boston, Brill, 2008 ; 1 vol. in-8°, xvii-445 et 41 pl. (Islamic History and Civilization, 72). ISBN : 978-90-04-16519-9.

in Moyen Age (Le) (in press)

Margaret Atwood's Good Bones

in The Prose Poem: an international Journal (1994), 4

The Marginal Arts

in Foster, Ed (Ed.) The World in Time and Space: Towards a History of Innovative American Poetry in Our Time (2002)

Marginal mafic intrusions as indicators of downslope draining of dense residual melts in anorthositic diapirs?

in Lithos (2006), 89(3-4), 329-352

Geochemical and isotopic investigation of three small mafic intrusions (Loyning: 1250 X 150 m, Hogstad: 2000 X 200 m, Koldal: 1250 X 500 m) in the marginal zones of the Egersund-Ogna (Loyning, Koldal) and ... [more ▼]

Geochemical and isotopic investigation of three small mafic intrusions (Loyning: 1250 X 150 m, Hogstad: 2000 X 200 m, Koldal: 1250 X 500 m) in the marginal zones of the Egersund-Ogna (Loyning, Koldal) and Ana-Sira massif-type anorthosites (Hogstad) (Rogaland Anorthositic Province, south Norway: 930 Ma) provides new insights into the late evolution of anorthositic diapirs. These layered mafic intrusions are essentially of norite, gabbronorite as well as leuconorite and display conspicuous evidence of subsolidus recrystallization. In Loyning and Hogstad, the modal layering is parallel to the subvertical foliation in the enclosing anorthosite. The northern part of the Koldal intrusion cuts across the foliation of the anolthosite, whereas in its southern part the subvertical layering is parallel to the anorthosite's foliation. The regularity of the layered structures suggests that the layering was initially acquired horizontally and later tilted during the final movements of the diapirs. The least differentiated compositions of plagioclase and otthopyroxene in the three intrusions (An(59)-En(68) in Loyning, An(49)-En(64) in Hogstad and An(44)-En(61) in Koldal) and the REE contents in apatite (Hogstad) indicate that their parent magmas were progressively more differentiated in the sequence Loyning-Hogstad-Koldal. Isotopic data (Loyning: Sr-87/Sr-86: 0.70376-0.70457, epsilon(Ndt): +6.8 to +2.7; Hogstad: Sr-87/Sr-86: 0.70537-0.70588, epsilon(Ndt): +2.1 to -0.5; Koldal: Sr-87/Sr-86: 0.70659-0.70911, epsilon(Ndt): +3.5 to - 1.6) also indicate that in this sequence, parent magmas were characterized by a progressively more enriched Sr and Nd isotopic signature. In Loyning, the parent magma was slightly more magnesian and anorthitic than a primitive jotunite; in Hogstad, it is a primitive jotunite; and, in Koldal, an evolved jotunite. Given that plagioclase and orthopyroxene of the three intrusions display more differentiated compositions than the orthopyroxene and plagioclase megacryts of the enclosing anorthosites, it is suggested that the parent magmas of the small intrusions are residual melts after anorthosite formation which were entrained in the anorthositic diapir during its rise from lower crustal chambers. Calculated densities of primitive jotunites (2.73-2.74 at FMQ, 0.15% H2O, 200 ppm CO2, 435 ppm F, 1150 degrees C, 3 kb) and evolved jotunites (2.75-2.76 at FMQ, 0.30% H2O, 400 ppm CO2, 870 ppm F, 1135 degrees C, 3 kb) demonstrate that they are much denser than the plagioclase of the surrounding anorthositic crystal mush (2.61-2.65). Efficient migration and draining of dense residual melts through the anorthositic crystal mush could have taken place along sloping floors (zones of lesser permeability in the mush), which occur along the margins of the rising anorthositic diapirs. This process takes into account the restricted occurrence of the mafic intrusions in the margins of the massif anorthosites. In a later stage, when the anorthosite was nearly consolidated, the residual melts were more differentiated (evolved jotunites) and could have been extracted into extensional fractures in the cooling and contracting anorthositic body in a similar way as aplitic dikes are emplaced in granitic plutons. As in the Rogaland Anorthositic Province, these dikes are much more abundant than the small mafic intrusions, collection and transport along dikes was probably more efficient than draining through the crystal mush. (C) 2006 Elsevier B.V. All rights reserved. [less ▲]

Marginalia Vergiliana

in Zeitschrift für Papyrologie und Epigraphik (1996), 114

Le mariage des couples du même sexe: un nouveau droit familial venu du nord?

in 15e Jour du Mois (Le) (2003)