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Academic literature on the topic 'Pétrologie – Granite'
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Journal articles on the topic "Pétrologie – Granite"
Pillet, D., M. Chenevoy, and M. Bélanger. "Pétrologie du granite peralcalin du lac Brisson, Labrador central, Nouveau-Québec. II. Minéralogie et modalités de cristallisation." Canadian Journal of Earth Sciences 30, no. 12 (December 1, 1993): 2423–35. http://dx.doi.org/10.1139/e93-209.
Full textPillet, D., M. Chenevoy, and M. Bélanger. "Pétrologie du granite peralcalin du lac Brisson, Labrador central, Nouveau-Québec. 1. Mode de mise en place et évolution chimique." Canadian Journal of Earth Sciences 29, no. 2 (February 1, 1992): 353–72. http://dx.doi.org/10.1139/e92-031.
Full textFreire-Lista, David Martín, and Rafael Fort. "Heritage Stone 4. The Piedra Berroqueña Region: Candidacy for Global Heritage Stone Province Status." Geoscience Canada 43, no. 1 (March 14, 2016): 43. http://dx.doi.org/10.12789/geocanj.2015.42.076.
Full textDissertations / Theses on the topic "Pétrologie – Granite"
Masmejean, Bruno. "Le complexe granito-anatectique sombre du Vivarais et les granites intrusifs associés : pétrologie et signification géodynamique." Lyon 1, 1987. http://www.theses.fr/1987LYO10131.
Full textSerrano, Julien. "Origine des pegmatites du Cap de Creus : approche intégrée de terrain, pétrologie et géochimie." Thesis, Toulouse 3, 2019. http://www.theses.fr/2019TOU30332.
Full textSince several decades, the debate on the origin of pegmatite formation has led to the development of two models, a granitic model and an anatectic model. Although these models are commonly accepted by the scientific community, they rely mainly on geochemical and/or petrological criteria, occasionally on geochronological datas, and rarely on structural criteria. The aim of my thesis is to study and to determine the origin -granitic vs anatectic- of the Cap de Creus pegmatites (Spain) by combining structural and geochemical studies. In-situ analyses (microprobe, LA-ICPMS) combined with different structural works and microstructural observations, both in pegmatites and their host rock, allowed me to establish a relative chronology of pegmatite emplacement, but also to replace the origin of the Cap de Creus pegmatites in a regional geodynamic model, thus highlighting two pegmatite fields of different origins
Razafimahefa, Narison. "Granites et leucogranites alumineux du nord-est du Massif de Millevaches (Massif Central français) : Pétrologie, géochimie et synthèse cartographiques." Nancy 1, 1987. http://www.theses.fr/1987NAN10236.
Full textHuang, Fangfang. "Contribution de la pétrologie expérimentale sur les processus de formation de roches et de minéralisation de granites du Jurassique en Chine du Sud." Thesis, Orléans, 2018. http://www.theses.fr/2018ORLE2026/document.
Full textAs a natural laboratory, the huge amounts of Mesozoic granite distributing in South China provided a unique opportunity to unravel the Mesozoic crust formation and evolution in southern China as well as for guiding mining exploration efforts in this area. What are the emplacement conditions of those Mesozoic granite in South China? What are the relationship between the emplacement conditions and the mineralization among those Mesozoic granites?We have experimentally established the phase relationships for the tin-bearing Jurassic Qitianling granite in South China. Three representative amphibole-bearing, metaluminous granitic samples were chosen for constraining crystallization conditions of the Qitianling pluton. Crystallization experiments were performed at 100-700 MPa, albeit mainly at 200 MPa or 300 MPa, at an fO₂ of ~NNO-1.3 (1.3 log unit below the Ni-NiO buffer) or ~NNO+2.4, at 660°C to 900°C, and at variable melt water contents (~3-8 wt%). Amphibole stability field and barometry both show that the pressure of magma emplacement was around 300-350 MPa. Amphibole and biotite Fe/Mg ratios further suggest that magmatic fO₂ was around NNO-1±0.5 near solidus, while Fe-Ti oxides record an fO2 increase up to NNO+1 below solidus. Amphibole crystallization is restricted to near H₂O-saturation conditions, requiring at least 5.5 wt% H₂Omelt at 200 MPa, or 6-8 wt % at ≥ 300 MPa. Amphibole occurrence in K₂O-rich metaluminous silicic magmas thus indicates water contents significantly higher than the canonical value of 4 wt%. The experimental liquid line of descent obtained at 200-300 MPa mimic the geochemical trend expressed by the pluton suggesting that fractionation in the upper crustal reservoir could happen. We deduced that the relatively low oxygen fugacity, high liquidus temperature and melt water rich condition may be an enabling environment for concentrating the ore elements in the early magmatic stage
Hafid, Ahmid. "Granites et dolérites protérozoïques de la boutonnière d'Irherm (Anti-Atlas occidental, Maroc) : (pétrologie, géochimie et signification géodynamique)." Paris 6, 1992. http://www.theses.fr/1992PA066172.
Full textCabane, Hugues. "Etude expérimentale et théorique du mûrissement d'Ostwald dans les systèmes magmatiques." Clermont-Ferrand 2, 2002. http://www.theses.fr/2002CLF21364.
Full textMesquita, Barros Carlos Eduardo de. "Pétrologie et structure du Complexe Granitique Estrela (2. 5 Ga) et de son encaissant métavolcano-sédimentaire (Province Métallifère de Carajas, Brésil)." Nancy 1, 1997. http://docnum.univ-lorraine.fr/public/SCD_T_1997_0190_DE_MESQUITA_BARROS.pdf.
Full textPillet, Denis. "Le granite peralcalin du lac Brisson. Labrador central (province du Québec. Canada) : pétrologie, géochronologie, et relations avec les minéralisations internes à Zr, Y, Nb." Lyon 1, 1989. http://www.theses.fr/1989LYO10156.
Full textSurma, Fabrice. "Détermination de la porosité des zones endommagées autour des failles et rôle de l'état du matériau sur les propriétés d'échange fluides-roches : Minéralogie, structures de porosité, caractéristiques mécaniques." Université Louis Pasteur (Strasbourg) (1971-2008), 2003. http://www.theses.fr/2003STR13169.
Full textFault zone structure is characterized by a fault core (gouge, cataclasite, mylonite), a damage zone (small faults, fractures, veins fold) and a protolith. We can clearly describe these structures in the Soultz-sous-Forêts granite (HDR Project, France) and in the Nojima Fault zone (Kobe, Japan). This work shows us that the structures are the same ones in the two sites in spite of their different deformation mode : one in extension and the other in compression. We propose, starting from the petrographic observations, a study of porosity and physical properties, a fluid flow model in a altered and fractured granite, taking into account the evolution of the fluid pressure and the processes of dissolution-precipitation during an earthquake. In the case of extension, the intersismic period is associated to an opening of the fractures in the fault damaged zone and an increase in porosity due to the rock alteration. During the earthquake, the fractures are closed and the fluid is expelled. In the case of compression, the intersismic period is associated to the closing of the fractures in the matrix and the expulsion of the fluids towards the fault whereas during the earthquake the fractures open because of the fluid pressure increase. Thus, there is a constant competition between the processes which enhance permeability and those which tend to reduce it. These processes (stresses, mineral precipitation, fluid pressure variation. . . Etc) are the same ones in the various contexts, but they do not interfere at the same time during an earthquake
Mortaji, Abdelaziz. "La boutonnière précambrienne de Tagragra d'Akka (anti-atlas occidental, Maroc) : Pétrologie et géochimie des granitoïdes, filons basiques et métamorphites associées." Nancy 1, 1989. http://www.theses.fr/1989NAN10349.
Full textBooks on the topic "Pétrologie – Granite"
Bouchez, J. L. (Jean Luc), ed. Pétrologie des granites: Structure, cadre écologique. Paris: Vuibert, 2011.
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