Letteratura scientifica selezionata sul tema "Petrofabric analysis"

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Articoli di riviste sul tema "Petrofabric analysis"

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HO, T. L. "Petrofabric Analysis by Means of X-Ray1". Bulletin of the Geological Society of China 27, n. 1 (29 maggio 2009): 389–98. http://dx.doi.org/10.1111/j.1755-6724.1947.mp27001027.x.

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Lloyd, Geoffrey E., Colin C. Ferguson e Richard D. Law. "Discriminatory petrofabric analysis of quartz rocks using SEM electron channelling". Tectonophysics 135, n. 1-3 (aprile 1987): 243–49. http://dx.doi.org/10.1016/0040-1951(87)90165-x.

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Ho, T. L. "Petrofabric Analysis of Some Wutal Schist and its Bearing on the Tectonite*". Bulletin of the Geological Society of China 26, n. 1 (29 maggio 2009): 109–19. http://dx.doi.org/10.1111/j.1755-6724.1946.mp26001006.x.

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Ui, Tadahide, Keiko Suzuki-Kamata, Rumi Matsusue, Kei Fujita, Hideya Metsugi e Mami Araki. "Flow behavior of large-scale pyroclastic flows ? Evidence obtained from petrofabric analysis". Bulletin of Volcanology 51, n. 2 (marzo 1989): 115–22. http://dx.doi.org/10.1007/bf01081980.

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Lloyd, Geoffrey E., e Colin C. Ferguson. "A spherical electron-channelling pattern map for use in quartz petrofabric analysis". Journal of Structural Geology 8, n. 5 (gennaio 1986): 517–26. http://dx.doi.org/10.1016/0191-8141(86)90002-7.

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Krzesińska, Agata, Jérôme Gattacceca, Jon M. Friedrich e Pierre Rochette. "Impact‐related noncoaxial deformation in the Pułtusk H chondrite inferred from petrofabric analysis". Meteoritics & Planetary Science 50, n. 3 (marzo 2015): 401–17. http://dx.doi.org/10.1111/maps.12429.

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Philpotts, Anthony R., e Nancy Wilson. "Application of Petrofabric and Phase Equilibria Analysis to the Study of a Potsherd". Journal of Archaeological Science 21, n. 5 (settembre 1994): 607–18. http://dx.doi.org/10.1006/jasc.1994.1060.

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Sychev, S. N., R. V. Veselovskiy, A. K. Khudoley e K. V. Kulikova. "Thrust and strike-slip deformations on the southern part of polar Urals based on the rock magnetic data". Moscow University Bulletin. Series 4. Geology, n. 6 (28 dicembre 2016): 46–55. http://dx.doi.org/10.33623/0579-9406-2016-6-46-55.

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Petromagnetic characteristics rocks croup out in the Main Uralian Fault zone and Voikar- Synya ophiolites confirmed that multistage deformation led to formation of modern structure of Ural. Analysis of the anisotropy of the magnetic susceptibility of rock minerals detects orienta- tion formed by the thrust (reverse faults) and strike-shear strain at an early stage of the Uralian orogeny. The main axes of the ellipsoid of the anisotropy of magnetic susceptibility associated with regional thrusting - the main stage of formation of structure of the Urals have been revealed rarely. It indicates almost complete resetting thrust petrofabric by later shear deformations.
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Lloyd, Geoffrey E., Richard D. Law e Stefan M. Schmid. "A spherical electron channelling pattern map for use in quartz petrofabric analysis: correction and verification". Journal of Structural Geology 9, n. 2 (gennaio 1987): 251–53. http://dx.doi.org/10.1016/0191-8141(87)90031-9.

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Renjith, A. R., e Manish A. Mamtani. "Domainal petrofabric analysis of micaceous quartzite using EBSD data: Role of muscovite in LPO evolution of quartz". Journal of the Geological Society of India 83, n. 5 (maggio 2014): 479–82. http://dx.doi.org/10.1007/s12594-014-0074-6.

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Tesi sul tema "Petrofabric analysis"

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Titus, Sarah J. "Olivine Petrofabric Analysis from the Leka Ophiolite Complex". Oberlin College Honors Theses / OhioLINK, 1999. http://rave.ohiolink.edu/etdc/view?acc_num=oberlin1411984517.

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Pressler, Rebecca E. "An integrated petrofabric study of the high-pressure Orlica-Śnieźnik Complex, Czech Republic and Poland". Ohio : Ohio University, 2006. http://www.ohiolink.edu/etd/view.cgi?ohiou1149180445.

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Jones, Emily S. "Strain analysis of lineated gneiss in the Hope Valley shear zone of southeast New England /". Connect to online version, 2005. http://ada.mtholyoke.edu/setr/websrc/pdfs/www/2005/104.pdf.

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Nejedlik, John. "Petrographic image analysis as a tool to quantify porosity and cement distribution". Title page, contents and abstract only, 2001. http://web4.library.adelaide.edu.au/theses/09SM/09smn417.pdf.

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Includes bibliographical references (leaves 153-157). Petrographic image analysis proved particularly useful in determining the parameters for statistical analysis for the simple mineralogies displayed in the samples from the Hutton Sandstone. Concentrates on establishing techniques for statistical study of data collected by PIA to subdivide the framework grains from the porosity or cement.
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Gardner, Eric Jesse. "Microstructural and crystallographic fabric analysis of stretched-pebble conglomerates in central Vermont". Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-12162009-020350/.

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Clemons, Kristopher M. "PETROFABRIC AND GEOCHEMICAL ANALYSIS OF THE GREAT SMOKY -- SNOWBIRD GROUP CONTACT, WESTERN BLUE RIDGE, NORTH CAROLINA AND TENNESSEE". Lexington, Ky. : [University of Kentucky Libraries], 2006. http://lib.uky.edu/ETD/ukygeol2006t00490/thesis.pdf.

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Thesis (M.S.)--University of Kentucky, 2006.
Title from document title page (viewed on November 1, 2006). Document formatted into pages; contains: vii, 95 p. : ill. (some col.), maps. Includes abstract and vita. Includes bibliographical references (p. 91-94).
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Jones, Marilyn Gail 1963. "Clay mineralogy and petrology of the Lower Cretaceous fine-grained clastic rocks, southeastern Arizona". Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/558100.

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Plissart, Gaëlle. "La chaîne varisque dans les Carpates Méridionales et les Balkans Occidentaux: études pétrostructurales des massifs d'Almaj (Roumanie), de Deli Jovan (Serbie) et de la Stara Planina Occidentale (Bulgarie)". Doctoral thesis, Universite Libre de Bruxelles, 2012. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209611.

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Ce travail retrace l’évolution varisque des Massifs d’Almǎj (Roumanie), de Deli Jovan (Serbie) et de la Stara Planina Occidentale (Bulgarie), à travers une étude pétrostructurale effectuée sur les différentes unités lithologiques de la Nappe alpine du Danubien supérieur. Cette nappe possède la particularité de contenir un marqueur de convergence de toute première importance sous la forme de 4 massifs ophiolitiques démembrés lors de l’orogenèse alpine :Tisoviţa Iuţi (TI, Roumanie), Deli Jovan (DJ, Serbie), Zaglavak (Z, Serbie) et Tcherni Vrah (TV, Bulgarie). Les études pétrologiques de terrain effectuées dans ces trois pays ont permis de confirmer la continuité entre ces 4 massifs, qui, séparément, comprennent chacun une portion de croûte océanique différente (TI :section mantélique et cumulats inférieurs, DJ :cumulats inférieurs et supérieurs, Z :cumulats supérieurs, TV :cumulats supérieurs et section effusive), mais considérés ensemble, forment une pile ophiolitique classique complète. De nouvelles datations par la méthode 147Sm-143Nd confirment un âge d’accrétion pour cette croûte océanique au Dévonien inférieur (~ 400 Ma). Cependant, l’essentiel de ce mémoire concerne les Monts Almǎj, notamment les roches encaissantes du massif de Tisoviţa Iuţi. La partie sud de ce massif ophiolitique représente la section inférieure d’une croûte océanique classique, alors que sa partie orientale est caractérisée par des roches de la croûte océanique supérieure, fortement déformées et transformées (métagabbros à zoïsite et fuchsite). Ces roches font partie de la Zone Mylonitique de Corbu (CMZ), qui comporte également des métasédiments à Gt ± St ± And et des serpentinites. Les conditions PT de formation de ces métagabbros, datés à 380-360 Ma par la méthode 40Ar-39Ar, ont été estimées à des températures comprises entre 450°C et 300°C. Leur contexte de formation peut être assimilé à une semelle ophiolitique ‘froide’, développée lors d’une obduction intra-océanique initiée probablement le long d’une faille transformante. Si le pic de métamorphisme des roches de Corbu a été estimé à 585°C/ 5.5 kbar, leur exhumation pourrait s’effectuer au sein d’un anticlinal en régime transpressif sénestre, en relation avec la formation de la CMZ, interprétée comme une ancienne zone plissée qui évolue en zone de cisaillement sénestre. Au Carbonifère, le granite syntectonique de Cherbelezu se met en place le long de la CMZ et enregistre les dernières phases de cette déformation lors de son refroidissement. Les études préliminaires sur les roches encaissantes des massifs ophiolitiques en Serbie et Bulgarie permettent de préciser une vergence d’obduction du lambeau ophiolitique vers le paléo-NW et d’établir un modèle de reconstitution paléogéodynamique au Varisque pour l’ensemble de la région étudiée./ This study provides new information on the Variscan evolution of the Almǎj Mountains (Romania), Deli Jovan Massif (Serbia) and Western Stara Planina (Bulgaria), throughout a petrostructural investigation conducted on the various lithological units of the Upper Danubian Alpine Nappe. This nappe displays an important convergence tectonic marker in the form of four ophiolitic massifs dismembered during the Alpine orogeny: Tisoviţa Iuţi (TI, Romania), Deli Jovan (DJ, Serbia), Zaglavak (Z, Serbia) and Tcherni Vrah (TV, Bulgaria). Our petrological studies in these three countries have confirmed the continuity between these four massifs, each of which showing, separately, a different portion of the oceanic crust (TI: mantle section and lower cumulates, DJ: lower and upper cumulates, Z: upper cumulates, TV: upper cumulates and effusive section), but taken together, forming a complete classical ophiolitic pile. New dating using the 147Sm-143Nd method has confirmed an accretion age for this oceanic crust at around 400 Ma (Early Devonian). However, the main part of this study has been focused in the Almǎj Mountains, particularly the Tisoviţa Iuţi ophiolitic massif and its enclosing rocks. The Southern part of this ophiolitic massif represents the lower section of a classical oceanic crust whereas its eastern part is characterized by upper crustal oceanic rocks that are highly deformed and transformed (zoïsite and fuchsite-bearing metagabbros). These rocks belong to the Corbu Mylonitic zone (CMZ), which also comprises Gt ± St ± And metasediments and serpentinites. Temperature estimates for the formation of the metagabbros are bracketed between 450°C and 300°C and these rocks have been dated at 380-360 Ma using the 40Ar-39Ar method on fuchiste. The geodynamic context for their formation can be viewed as a ‘cold’ ophiolitic sole, developed during an intra-oceanic obduction probably initiated along transform fault. If the metamorphic peak for the Corbu rocks has been estimated at 585°C/5.5kbar, their rapid exhumation could be realized via an anticline under a transpressive sinistral regime, connected with the formation of the CMZ that is interpreted as an ancient fold zone evolving in a sinistral shear zone. Finally, the Carboniferous syntectonic Cherbelezu granite intrudes along the CMZ and records the final stages of this deformation during its cooling. Preliminary investigations on the enclosing rocks of the ophiolitic massifs in Serbia and Bulgaria allow us to define a top to the NW obduction vergence for the ophiolite and to propose a paleogeodynamic reconstitution model for the Carpathian/Balkans terrains in the Variscan times.
Doctorat en Sciences
info:eu-repo/semantics/nonPublished
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Meyer, Matthew Charles. "Magnetic fabric, palaeomagnetic and structural investigation of the accretion of lower oceanic crust using ophiolitic analogues". Thesis, University of Plymouth, 2016. http://hdl.handle.net/10026.1/5022.

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This thesis presents the results of a combined magnetic fabric and palaeomagnetic analysis of lower crustal rocks exposed in the Oman (Semail) ophiolite. This has long been an important natural laboratory for understanding the construction of oceanic crust at fast spreading axes and its subsequent tectonic evolution, but magnetic investigations in the ophiolite have been limited. Analyses presented here involve using: (i) magnetic anisotropies as a proxy for magmatic petrofabrics in lower crustal rocks in order to contribute to outstanding questions regarding the mode of accretion of fast-spread oceanic crust; and (ii) classical palaeomagnetic analyses to determine the nature of magnetization in these rocks and gain further insights into the regional-scale pattern of tectonic rotations that have affected the ophiolite. The extensive layered gabbro sequences exposed in the Semail ophiolite have been sampled at a number of key localities. These are shown to have AMS fabrics that are layer-parallel but also have a regional-scale consistency of the orientation of maximum anisotropy axes. This consistency across sites separated by up to 100 km indicates large-scale controls on fabric development and may be due to consistent magmatic flow associated with the spreading system or the influence of plate-scale motions on deformation of crystal mushes emplaced in the lower crust. Detailed analysis of fabrics in a single layer and across the sampled sections are consistent with either magmatic flow during emplacement of a melt layer into a lower crustal sill complex, or traction/drag of such layers in response to regional-scale stresses (e.g. mantle drag). Together, results support formation of the layered gabbros by injection of melt into sill complexes in the lower crust. New anisotropy data from the overlying foliated gabbros sampled at two key localities also provide insights into the style of melt migration at this crustal level. Fabrics are consistent with either focused or anastomosing magmatic upwards flow through this layer, reflecting melt migration beneath a fossil axial melt lens. Previous palaeomagnetic research in lavas of the northern ophiolitic blocks has demonstrated substantial clockwise intraoceanic tectonic rotations. Palaeomagnetic data from lower crustal sequences in the southern blocks, however, have been more equivocal due to complications arising from remagnetization. Systematic sampling resolves for the first time a pattern of remagnetized lowermost gabbros and retention of earlier magnetizations by uppermost gabbros and the overlying dyke-rooting zone. Results are supported by a positive fold test that shows that remagnetization of lower gabbros occurred prior to Campanian structural disruption of the Moho. NW-directed remagnetized remanences in the lower units are consistent with those used previously to infer lack of significant rotation of the southern blocks. In contrast, E/ENE-directed remanences in the uppermost gabbros imply a large, clockwise rotation of the southern blocks, of a sense and magnitude consistent with that inferred from extrusive sections in the northern blocks. Hence, without the control provided by systematic crustal sampling, the potential for different remanence directions being acquired at different times may lead to erroneous tectonic interpretation.
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Laporte, Didier. "Un exemple d'intrusion syntectonique : l'intrusion d'Ile-Rousse, Corse du nord-ouest : étude pétrographique, minéralogique et géochimique, analyse structurale". Saint-Etienne, 1987. http://www.theses.fr/1987STET4001.

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L'intrusion d'Ile Rousse est une association intime de granitoïdes aux caractéristiques plus ou moins fortement contrastées, juxtaposés en lames subméridiennes à fort pendage. On y distingue des granitoïdes calcoalcalins magnésio-potassiques et des granitoïdes n'appartenant pas à l'association magnésiopotassiques dont les mieux types sont les granodivrités de Corbara. Analyse statistique de la sous-fabrique des mégacristaux de Feldspath potassique accompagnée d'une modélisation mathématique
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Libri sul tema "Petrofabric analysis"

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Indutnyĭ, V. V. Planimetricheskiĭ analiz struktur mineralʹnykh agregatov. Kiev: Nauk. dumka, 1991.

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Passchier, C. W. Microtectonics. Berlin: New York, 1996.

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Trouw, R. A. J. (Rudolph A. J.), 1944-, a cura di. Microtectonics. Berlin: New York, 1998.

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Gansekigaku. Tōkyō-to Bunkyō-ku: Kyōritsu Shuppan, 2013.

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Reunión sobre Microtectónica (6th 1990 Buenos Aires, Argentina). VI Reunión sobre Microtectónica: Realizada en la Academia Nacional de Ciencias Exactas, Físicas y Naturales : auspiciada por el Consejo Nacional de Investigaciones Científicas y Técnicas--CONICET--Bueons Aires, 6-7 de noviembre de 1990. Buenos Aires: La Academia, 1992.

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Reunión sobre Microtectónica (8th 1992 Bariloche, Argentina). Actas. San Carlos de Bariloche: PROGEBA, 1993.

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Mies, Jonathan W. Microstructures and quartz crystallographic fabric in the Hollis quartzite, Pine Mountain Window, Lee County, Alabama. Tuscaloosa, Ala. (420 Hackberry Lane, Tuscaloosa 35486-9780): Geological Survey of Alabama, Geology and Mapping Division, 1993.

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Romm, E. S. Strukturnye modeli porovogo prostranstva gornykh porod. Leningrad: "Nedra," Leningradskoe otd-nie, 1985.

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Augustithis, S. S. Atlas of the textural patterns of ore minerals and metallogenic processes. Berlin: W. de Gruyter, 1995.

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Rywocka-Kenig, Krystyna. Mikrorzeźba powierzchni ziarn kwarcu z lessów =: Surface microtextures of quartz grains from loesses. Warszawa: Państwowy Instytut Geologiczny, 1997.

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Atti di convegni sul tema "Petrofabric analysis"

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Maddock, J. S., Q. J. Fisher, J. M. Kendall e G. E. Lloyd. "Petrofabric Analysis of Seismic Anisotropy in Siliciclastic Sedimentary Rocks". In 66th EAGE Conference & Exhibition. European Association of Geoscientists & Engineers, 2004. http://dx.doi.org/10.3997/2214-4609-pdb.3.p348.

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Robinson, Jessica M., Allison D. Jones, Kurtis C. Burmeister, Allison R. Severson, Samuel A. Noethe e Michael A. Stewart. "PRELIMINARY OUTCROP-SCALE RF/PHI PETROFABRIC ANALYSIS OF CONGLOMERATE FROM THE JURASSIC TUTTLE LAKE FORMATION; MOUNT TALLAC ROOF PENDANT, EL DORADO COUNTY, CA". In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-280661.

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Arnold, Victoria A., Allison D. Jones, Jessica M. Robinson, Allison R. Severson, Kurtis C. Burmeister e Frederick W. Vollmer. "ANALYSIS OF PETROFABRICS IN THE JURASSIC TUTTLE LAKE FORMATION NEAR GRASS LAKE; MOUNT TALLAC ROOF PENDANT, EL DORADO COUNTY, CA". In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-307636.

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