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The Volcanology Petrology And Geochronology Of The Fish Canyon Magmatic System San Juan Volcanic Field Usa
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Book Synopsis The Volcanology, Petrology, and Geochronology of the Fish Canyon Magmatic System, San Juan Volcanic Field, U.S.A. by : Olivier Bachmann
Download or read book The Volcanology, Petrology, and Geochronology of the Fish Canyon Magmatic System, San Juan Volcanic Field, U.S.A. written by Olivier Bachmann and published by . This book was released on 2001 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Il y a 28 millions d'années, l'une des plus grandes éruptions explosives connues a pris place dans le sud de l'actuel Colorado, aux Etats-Unis. Cette unité volcanique, dénommée le Tuf de Fish Canyon, ainsi que deux plus petites éruptions qui lui sont associées, ont permis d'étudier plusieurs aspects de ces phénomènes rares mais d'une puissance capable d'affecter la terre dans son ensemble. Cette thèse aborde trois sujets principaux. Tout d'abord, une étude volcanologique sur les dépôts précédant l'unité climatique a permis de documenter un style éruptif nettement moins explosif pour cette unité précurseur probablement à l'origine du déclenchement de l'éruption principale. Deuxièmement, une étude texturale et géochimique a démontré que le magma de Fish Canyon a été réactivé par une injection de basalte, menant à la remobilisation de tout le corps magmatique. Finalement, une étude géochronologique a permis de contraindre la vitesse de ces phénomènes magmatiques.
Book Synopsis Ancient Lake Creede by : Philip Martin Bethke
Download or read book Ancient Lake Creede written by Philip Martin Bethke and published by Geological Society of America. This book was released on 2000-01-01 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Field Volcanology: A Tribute to the Distinguished Career of Don Swanson by : Michael P. Poland
Download or read book Field Volcanology: A Tribute to the Distinguished Career of Don Swanson written by Michael P. Poland and published by Geological Society of America. This book was released on 2018-10-11 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Don Swanson, who received the GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division's Distinguished Geologic Career award in 2016, has adopted a detailed, field-oriented approach to studying problems of great volcanologic importance across a range of compositions and spatio-temporal scales. Swanson's work has resulted in a series of fundamental contributions that have advanced understanding of the Columbia River flood basalts, Cascade volcanic arc, and Hawai'i, and his insights have been applied not only around the world, but across the solar system. This volume emphasizes the role of field volcanology as a window into better understanding volcanic processes past and present, and highlights, in particular, those places and processes where Swanson's insights have been particularly impactful.
Book Synopsis Unfolding the Geology of the West by : Stephen M. Keller
Download or read book Unfolding the Geology of the West written by Stephen M. Keller and published by Geological Society of America. This book was released on 2016-09-20 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Sixteen geologic field guides explore areas in Colorado, New Mexico, Utah, and Montana"--
Book Synopsis Stratigraphy, Petrology, and Geochemistry of Nevado de Longaví Volcano, Chilean Andes (36.2°S) by : Daniel Fernando Sellés Mathieu
Download or read book Stratigraphy, Petrology, and Geochemistry of Nevado de Longaví Volcano, Chilean Andes (36.2°S) written by Daniel Fernando Sellés Mathieu and published by . This book was released on 2006 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: La subduction d'une zone de fracture dans la croûte océanique est probablement responsable des teneurs en eau anormalement élevées. Cette zone de fracture n'est pas stationnaire mais migre vers le sud ; la stratigraphie interne du volcan enregistre des changements de chimie et minéralogie cohérents avec une augmentation progressive de l'influence de la zone de fracture.
Book Synopsis Intra-crustal Origin of Holocene Adakitic Magmas at Nevado de Longavi Volcano (Chilean Andes, 36.2°S) by : Ana Carolina Rodríguez Soto
Download or read book Intra-crustal Origin of Holocene Adakitic Magmas at Nevado de Longavi Volcano (Chilean Andes, 36.2°S) written by Ana Carolina Rodríguez Soto and published by . This book was released on 2006 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Distribution of Sedimentary Organic Matter (palynofacies) with Respect to Palaeoenvironmental Conditions by : Caroline Pellaton
Download or read book Distribution of Sedimentary Organic Matter (palynofacies) with Respect to Palaeoenvironmental Conditions written by Caroline Pellaton and published by . This book was released on 2003 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Volcanoes written by John P. Lockwood and published by John Wiley & Sons. This book was released on 2013-04-26 with total page 677 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volcanoes are essential elements in the delicate global balance of elemental forces that govern both the dynamic evolution of the Earth and the nature of Life itself. Without volcanic activity, life as we know it would not exist on our planet. Although beautiful to behold, volcanoes are also potentially destructive, and understanding their nature is critical to prevent major loss of life in the future. Richly illustrated with over 300 original color photographs and diagrams the book is written in an informal manner, with minimum use of jargon, and relies heavily on first-person, eye-witness accounts of eruptive activity at both "red" (effusive) and "grey" (explosive) volcanoes to illustrate the full spectrum of volcanic processes and their products. Decades of teaching in university classrooms and fieldwork on active volcanoes throughout the world have provided the authors with unique experiences that they have distilled into a highly readable textbook of lasting value. Questions for Thought, Study, and Discussion, Suggestions for Further Reading, and a comprehensive list of source references make this work a major resource for further study of volcanology. Volcanoes maintains three core foci: Global perspectives explain volcanoes in terms of their tectonic positions on Earth and their roles in earth history Environmental perspectives describe the essential role of volcanism in the moderation of terrestrial climate and atmosphere Humanitarian perspectives discuss the major influences of volcanoes on human societies. This latter is especially important as resource scarcities and environmental issues loom over our world, and as increasing numbers of people are threatened by volcanic hazards Readership Volcanologists, advanced undergraduate, and graduate students in earth science and related degree courses, and volcano enthusiasts worldwide. A companion website is also available for this title at www.wiley.com/go/lockwood/volcanoes
Book Synopsis Holocene Delta in Western Lake Geneva and Its Palaeoenvironmental Implications by : Ira Baster
Download or read book Holocene Delta in Western Lake Geneva and Its Palaeoenvironmental Implications written by Ira Baster and published by . This book was released on 2002 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Des investigations sismiques et sédimentologiques ont été entreprises dans le but d'étudier l'évolution sédimentaire de la région au large de Nyon, en relation avec les processus lacustres et les changements climatiques qui ont eu lieu depuis le retrait du glacier du Rhône (18000 années BP) jusqu' à aujourd'hui. La source des sédiments a progressivement changé des eaux de fonte glaciaires aux cours d'eau locaux et un cône deltaïque, alimenté par les apports de la Promenthouse, de l'Asse et du Boiron, a commencé à se former dans la partie occidentale du Lac Léman. D'importants changements des apports sédimentaires ont eu lieu au cours de l'Holocène: six différents lobes deltaïques, progradant sur les sédiments tardiglaciaires, ont été reconnus au milieu du bassin par l'analyse séismostratigraphique. L'étude des propriétés magnétiques des séquences sédimentaires récoltées a fourni une courbe des variations séculaires du champ magnétique terrestre pour les derniers 16000 ans.
Book Synopsis Physical Properties of Alpine Rocks by : Gangyan Gong
Download or read book Physical Properties of Alpine Rocks written by Gangyan Gong and published by . This book was released on 2005 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Raúl-Condestable Iron Oxide Copper-gold Deposit, Central Coast of Peru by : Antoine de Haller
Download or read book The Raúl-Condestable Iron Oxide Copper-gold Deposit, Central Coast of Peru written by Antoine de Haller and published by . This book was released on 2006 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cette thèse de doctorat est dédiée au gisement de cuivre-or de type "iron oxide copper-gold" de Raúl-Condestable, localisé à 90 km au sud de Lima, sur la côte péruvienne. Le minerai est composé de chalcopyrite, pyrite, pyrrhorite et magnétite, sous la forme de disséminations, remplissages de porosité, remplacements et veines dans des roches amphibolitisées appartenant à une série volcanosédimentaire du Crétacé inférieur.
Book Synopsis Influence des colloïdes sur la toxicité des métaux (Cd, Cu, Pb, Zn) chez l'algue verte Pseudokirchneriella subcapitata by : Brahim Koukal
Download or read book Influence des colloïdes sur la toxicité des métaux (Cd, Cu, Pb, Zn) chez l'algue verte Pseudokirchneriella subcapitata written by Brahim Koukal and published by . This book was released on 2005 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Special Papers written by and published by . This book was released on 1934 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Geology of a Large Intact Extensional Oceanic Arc Crustal Section with Superior Exposures by : Cathy J. Busby
Download or read book Geology of a Large Intact Extensional Oceanic Arc Crustal Section with Superior Exposures written by Cathy J. Busby and published by Geological Society of America. This book was released on 2023-04-11 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Geological and Structural Setting, Age, and Geochemistry of the Orogenic Gold Deposits at the Pataz Province, Eastern Andean Cordillera, Peru by : Yves Haeberlin
Download or read book Geological and Structural Setting, Age, and Geochemistry of the Orogenic Gold Deposits at the Pataz Province, Eastern Andean Cordillera, Peru written by Yves Haeberlin and published by . This book was released on 2002 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: La province de Pataz au Nord-Pérou est la plus septentrionale des ceintures paléozoïques d'or, antimoine et tungstène orogéniques (mésothermales) de la Cordillère Orientale des Andes Centrales. Longue de plus de 160 km, elle est connue pour ses veines épigénétiques de quartz aurifères riches en sulfures (ressource : 40 millions d'onces d'or). Les minéralisations, datées à ~314 Ma, sont localisées dans des fractures inverse-décrochantes dextres et d'extension le long des marges et à l'intérieur du batholite de Pataz (329 Ma) et dans les roches métasédimentaires avoisinantes. L'intrusion hôte n'exerce qu'un rôle passif dans leur genèse et fonctionne uniquement comme un réceptacle structural très favorable. La minéralisation est temporellement liée à un stade d'exhumation du bâti et à l'addition d'un flux de chaleur dans une croûte épaissie. Le piégeage de l'or au contact des sulfures microfracturées interviendrait à 5-10 km de profondeur par dilution d'un fluide salin précoce par des eaux superficielles.
Book Synopsis Subsurface Fluid Flow Simulation with Finite Element Method in the East Pannonian Basin by : János Viszkok
Download or read book Subsurface Fluid Flow Simulation with Finite Element Method in the East Pannonian Basin written by János Viszkok and published by . This book was released on 2001 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: - De décrire les systèmes d'écoulement régionaux, intermédiaires et locaux dans le Bassin Pannonien,
Book Synopsis 40Ar/39Ar Dating of Late Pleistocene Marine and Terrestrial Tephra from the Tyrrhenian and Ionian Seas, Mediterranea by : Thao Ton-That
Download or read book 40Ar/39Ar Dating of Late Pleistocene Marine and Terrestrial Tephra from the Tyrrhenian and Ionian Seas, Mediterranea written by Thao Ton-That and published by . This book was released on 2001 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce doctorat a permis l'établissement de nouveaux âges 40Ar/39Ar sur des échantillons très jeunes. Le premier chapitre est publié dans "Earth and planetary science letters". Un âge a été obtenu sur un tephra très jeune, provenant des champs phlégréens. Il permet une calibration d'autres événements climatiques et géologiques tels qu'un pic de 10Be (identifié dans des carottes de glace, des océans atlantique, pacifique et méditerranée), une excursion magnétique nommée Laschamp (marqueur global), une calibration des âges 14C>35 ka. Les autres données provenant de l'île de Pantelleria et de tephra marins (mer Ionienne), permettent de comparer des échantillons terrestres et marins. La datation simultanée est un outil puissant pour déterminer la source d'un échantillon marin dont l'origine est incertaine. Une fois la source définie, on peut ensuite facilement travailler sur les échantillons terrestres, disponibles en plus grande quantité et dont les cristaux sont plus grands (datation de monocristaux).
