WorldCat Identities

Cuney, Michel

Overview
Works: 60 works in 94 publications in 3 languages and 324 library holdings
Genres: Conference proceedings 
Roles: Author, Publishing director, Editor, Thesis advisor, Cartographer
Classifications: AC20Q84V.1070, 546.43
Publication Timeline
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Most widely held works by Michel Cuney
L'Uranium by M Cuney( Book )
3 editions published in 1992 in French and held by 78 WorldCat member libraries worldwide
Recent and not-so-recent developments in uranium deposits and implications for exploration by M Cuney( Book )
7 editions published between 2008 and 2009 in English and held by 66 WorldCat member libraries worldwide
Primary radioactive minerals : (the textural patterns of radioactive mineral paragenetic associations) ( Book )
8 editions published between 1989 and 1991 in English and Greek, Modern and held by 45 WorldCat member libraries worldwide
Regards sur l'uranium by Claude Valsardieu( Book )
4 editions published between 2000 and 2001 in French and Undetermined and held by 23 WorldCat member libraries worldwide
L'Uranium du Morvan et du Forez by Pierre-Christian Guiollard( Book )
1 edition published in 2002 in French and held by 7 WorldCat member libraries worldwide
Traitement des données en géochimie et en géologie de l'ingénieur = Data processing in geochemistry and in engineering geology by M Cuney( Book )
2 editions published in 1985 in French and English and held by 6 WorldCat member libraries worldwide
Forage Echassières N°1 : rapport d'exécution et descriptions préliminaires by Programme Géologie profonde de la France( Book )
4 editions published in 1985 in French and held by 5 WorldCat member libraries worldwide
Le gisement uranifère des Bois-Noirs, Limouzat (Massif central, France) relations entre minéraux et fluides by M Cuney( Book )
1 edition published in 1974 in French and held by 3 WorldCat member libraries worldwide
"Cette recherche a été axée principalement sur l'analyse des relations existant entre minéraux et fluides dans le gisement uranifère des Bois Noirs. L'interprétation des données obtenues par l'étude des inclusions fluides, nécessitant la connaissance préalable d'une succession minéralogique très précise, celle-ci a été entreprise en recherchant particulièrement les possibilités de remplacement. Après une analyse de la géologie régionale et celle du gisement à partir des travaux antérieurs effectués principalement par les géologues du CEA, ce travail comporte trois parties essentielles : analyse des phases minérales et de leurs relations réciproques à l'aide des techniques classiques (lames minces, sections polies, rayons X, analyses chimiques) et de technique plus fines (autoradiographie et microsonde) ; analyse des phases fluides associées essentiellement dans le quartz, mais aussi dans la fluorine, la calcite ... Quatre techniques ont été utilisées : la platine à écrasement permet la mise en évidence de gaz sous pression dans les minéraux de manière simple ; la microthermométrie : par observation de changements de phases entre -180° et +400°C qui s'opèrent dans les inclusions fluides des minéraux des gangues, permet une approche qualitative à semi-quantitative de la composition des phases fluides ; l'analyse des cations : elle permet une détermination quantitative des rapports des concentrations des différents ions des phases fluides ; la chromatographie en phase gazeuse : en couplage avec la spéctrométrie de masse elle permet l'identification des composés gazeux des inclusions fluides, qui sont ensuite dosés quantitativement par le chromatographe. Interprétation des données obtenues par les deux types d'analyses précédentes afin d'estimer les conditions thermodynamiques dans lesquelles le transport et le dépôt d'uranium a pu s'effectuer
Déformation et fusion partielle dans la croûte continentale migmatites et granites de l'unité occidentale des Vosges moyennes (France) by Philippe Blumenfeld( Book )
1 edition published in 1986 in French and held by 2 WorldCat member libraries worldwide
Relation structure-fusion partielle et structure-cristallisation en domaine de fusion crustale et de tectonique tangentielle. L'étude porte sur l'unité occidentale des Vosges moyennes formée d'une pile de migmatites et de granites affectée par un chevauchement complexe
Fourth Hutton symposium "the origin of granites and related rocks" : proceedings of a symposium held in Clermont-Ferrand, France, 20-25 September, 1999 by 1999, Clermont-Ferrand) Hutton Symposium on the Origin of Granites and Related Rocks (4( Book )
1 edition published in 2001 in English and held by 2 WorldCat member libraries worldwide
Métallogenèse de l'uranium associée à des processus superficiels l'exemple de la Jordanie centrale by Stéphanie Fleurance( )
1 edition published in 2012 in French and held by 2 WorldCat member libraries worldwide
Les différentes lithologies sédimentaires du Groupe Belqa présentent un enrichissement en P et en toute une série d'éléments sensibles aux conditions redox. Il est montré que l'enrichissement en U, Cu, Co, Mo, V résulte d'un dépôt syn-sédimentaire sous conditions suboxiques. Par contre, les éléments Cr, Ni, Cd, Zn sont beaucoup plus enrichis et requierent un flux exogénique de métal probablement relié à l'altération de roches ultrabasiques obductées à la même période au nord de cette région, lors de la collision de la plaque arabo-africaine avec la plaque eurasienne. Les phosphates représentent le principal hôte de l'uranium et des terres rares. L'analyse des apatites par ablation laser ICP-MS a permis de montrer leur évolution, depuis le stade sédimentaire-diagénétique, puis pyrométamorphique, jusqu'à l'altération supergène. La libération de l'uranium de la structure de l'apatite lors du pyrométamorphisme et de l'altération supergène permet sa mise à disposition pour la formation de minéralisations. Le pyrométamorphisme, dû à une combustion des niveaux riches en matière organique, est responsable de la déstabilisation des apatites, et de la formation de roches de compositions semblables à des ciments clinker/Portland. L'uranium a également été libéré de la structure de l'apatite par altération supergène. L'altération météorique et les fluides évaporitiques ont permis le lessivage et le transport des éléments (U, V) des roches carbonatées métamorphiques, et des carbonates puis a conduit au dépôt des vanadates d'uranyles dans les carbonates pulvérulents ayant subi une dissolution importante
Signature géochimique des éléments des terres rares dans les oxydes d'uranium et minéraux associés dans les gisements d'uranium analyse par ablation laser couplée à l'ICP-MS et étude géochronologique by Philippe Lach( )
1 edition published in 2012 in French and held by 2 WorldCat member libraries worldwide
The ore deposits often display complex stages of formation leading to multiphase mineral crystallizations. The study of these minerals needs to use a sensitive and localized analytical method. Laser ablation coupled to ICP-MS is a good tool for in-situ measurements of low element concentrations (<10 ppm) at a small scale in minerals (around 10 ?m diameter). Two major objectives concerning the use of LAICP-MS have been carried out in this thesis. First part is focused on the determination of the best analytical conditions for rare earth element (REE) quantification with LA-ICP-MS in uranium oxides and associated minerals (carbonate, fluorite). This approach has been coupled to isotopic analysis using ionic microprobe. The second part is dedicated to the application of the methodology on 21 uranium ore bodies typical of four different types of deposits. The uranium oxides from unconformity-related uranium deposits (Athabasca Basin) show typical REE signature whatever their age and location. Data on End Grid U mineralization (Thelon basin) suggest similar conditions of formation and ages as in Athbasca unconformity related uranium deposits. High temperature during magmatic uraninite formation induced strong incorporation of REE in their structures. REE signatures of uranium oxides related to vein type deposits suggest a control of the host rocks. Finally, the different REE signatures obtained on uranium oxides from breccia pipe-related deposit show a strong variation in the conditions of formation in these supposed similar deposits
Métasomatose alcaline et minéralisations uranifères : les albitites du gisement de Lagoa Real, Bahia, Brésil, et exemples complémentaires de Xihuashan, SE Chine, Zheltorechensk, Ukraine et Chhuling Khola, Népal central by Patricia Maruejol( Book )
1 edition published in 1988 in French and held by 2 WorldCat member libraries worldwide
Les minéralisations uranifères des albitites sont étudiées sur les exemples de Lagoa Real (Brésil), Xihueshan (Chine SE) Zheltorechensk (Ukraine) et Chuling Khola (Nepal central). L'altération correspond le plus souvent à une métasomatose sodique et carbonatée sous l'influence de fluides oxydants et salés. L'uranium précipite s'il existe des agents réducteurs et des cavités
Caractéristiques géochimiques originelles et transferts de matière lors de l'altération des roches volcaniques acides associées aux minéralisations uranifères by Rémy Chemillac( Book )
2 editions published between 2004 and 2007 in French and held by 2 WorldCat member libraries worldwide
Uranium deposits related to acidic volcanism are known on every continent, ranging in age from Proterozoic to present. These mineralizations show variable metal content from a few hundred to several hundred thousand metric tons of uranium. The processes that could lead to such concentrations have been studied in the present Ph.D. work, based on several examples including the volcanics from Ben Lomond (Australia), the Sierra Peña Blanca (Mexico), Macusani (Peru), Dornot (Mongolia), Xiangshan (China), McDermitt (USA) and Olympic Dam (Australia). Analyses of melt inclusions made it possible to determine magma typologies and initial compositions (U, metals, incompatible elements and volatiles) before postmagmatic overprint. Emplacement of volcanic rocks and their subsequent alteration induce losses and/or gains of elements which can be quantified by mass balance calculations between melt inclusions and altered rocks. Huge outflows of F-rich peralkaline volcanics and their subsequent long-term hydrothermal alteration in a caldera context are the most favorable for the formation of giant uranium deposits in volcanic settings
LES BRECHES ASSOCIEES AUX GISEMENTS D'URANIUM DE TYPE DISCORDANCE DU BASSIN ATHABASCA (SASKATCHEWAN, CANADA) by Guillaume Lorilleux( Book )
2 editions published between 2001 and 2006 in French and held by 2 WorldCat member libraries worldwide
Unconformity-type uranium deposits in the Athabasca Basin (Canada) are commonly hosted and surrounded by breccia bodies in quartzose sandstones. In order to understand the mechanisms of breccia formation and the ir significance for the genesis of uranium deposits, the breccias associated with U mineralizations of the Shea Creek prospect and Sue C open pit, and with the Y-REEU mineralization of the Maw Zone were studied. Structural mapping and 3D modeling evidence the control of breccia geometries by reverse faults that are graphite-rich in the basement. The study of mineral paragenesis and calculations of U-Pb chemical ages at Shea Creek reveal 3 breccia phases with sudoite-dravite, Fe-chlorite and hematite-siderite cements. These breccias developed over more than 1 Ga respectively during 3 stages of tectonic reactivations and/or basin uplift main! y between 1.52 and 1.25 Ga during the main event of primary uranium deposition and at about 900 and 350 Ma during phases of uranium remobilization. The breccias coeval with the genesis of the primary mineralization developed in 3 stages characterized by fractal analysis of fragment shapes expressing their degree ofmaturity. The first stage of breccia formation has been triggered by a reactivation of graphite-rich reverse faults inducing localized tectonic fracturing in the core offaults and widespread hydraulic fracturing in early silicified zones. The second stage corresponds to quartz dissolution due to the vertical circulation of a basement t1uid undersaturated relative to silica in fractured sandstones. Calculated minimum t1uid/rock ratios are very high with values of3,000 at the Maw Zone and 38,000 in the Sue « zones à boules» ret1ecting the decrease of dissolution intensity with the increase of distance to the unconformity. The minimum volume of basement t1uids that have circulated through the breccias is about 1 km3 • Mass balance calculations show an input of U, V, Mg, B, Al, K, Bi, Ni, Co, Mo, As, S, W, Zn, Y and REE, in accordance with the new formation of illite, Mg-rich sudoite and dravite and with the polymetallic sandstone-hosted mineralization.The third stage is expressed by gravity-driven collapse phenomenons resulting from the cavities created by quartz dissolution. In « zones à boules » developed in the core of faults, it is the tectonic contraction that progressively closed the open spaces formed by quartz dissolution. Volume Joss values reach 90 % in zones of intense dissolution close to the unconformity. In steeply dipping fault zones, collapse propagated up to more than 250 rn above the unconformity as observed at the Maw Zone, like in a karst. Uranium deposition induced by mixing of the reducing basement fluid undersaturated relative to quartz (> 250°C) with diagenetic oxidizing basin fluids (< 240°C) occurred during about severa! million years, simultaneously with quartz dissolution providing the space needed to form the massive mineralizations
 
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Audience level: 0.74 (from 0.00 for L'Uranium ... to 0.96 for Traitement ...)
Alternative Names
Cuney, Michel
Languages
French (30)
English (17)
Greek, Modern (1)
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