Carbonate-hosted Pb-Zn±Ag and Ba Deposits in the Chañarcillo Group, Northern Chile

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ISBN 13 :
Total Pages : 184 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Carbonate-hosted Pb-Zn±Ag and Ba Deposits in the Chañarcillo Group, Northern Chile by : François Lieben

Download or read book Carbonate-hosted Pb-Zn±Ag and Ba Deposits in the Chañarcillo Group, Northern Chile written by François Lieben and published by . This book was released on 2000 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Stratabound Zn-, Ba-, (Ag-) Ore Deposits of the Lower Cretaceous in the Atacama Region of Northern Chile

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ISBN 13 :
Total Pages : 218 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Stratabound Zn-, Ba-, (Ag-) Ore Deposits of the Lower Cretaceous in the Atacama Region of Northern Chile by : Leonardo L. Díaz

Download or read book Stratabound Zn-, Ba-, (Ag-) Ore Deposits of the Lower Cretaceous in the Atacama Region of Northern Chile written by Leonardo L. Díaz and published by . This book was released on 1986 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Bollettino Svizzero Di Mineralogia E Petrografia

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ISBN 13 :
Total Pages : 608 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Bollettino Svizzero Di Mineralogia E Petrografia by :

Download or read book Bollettino Svizzero Di Mineralogia E Petrografia written by and published by . This book was released on 1996 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Economic Geology

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ISBN 13 :
Total Pages : 616 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Economic Geology by :

Download or read book Economic Geology written by and published by . This book was released on 2003 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Geological and Structural Setting, Age, and Geochemistry of the Orogenic Gold Deposits at the Pataz Province, Eastern Andean Cordillera, Peru

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ISBN 13 :
Total Pages : 204 pages
Book Rating : 4.F/5 ( download)

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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.

40Ar/39Ar Dating of Late Pleistocene Marine and Terrestrial Tephra from the Tyrrhenian and Ionian Seas, Mediterranea

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ISBN 13 :
Total Pages : 116 pages
Book Rating : 4.F/5 ( download)

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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).

Palaeoenvironmental Reconstruction of the Mufara Formation (Upper Triassic, Sicily)

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ISBN 13 :
Total Pages : 296 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Palaeoenvironmental Reconstruction of the Mufara Formation (Upper Triassic, Sicily) by : Alexis Carrillat

Download or read book Palaeoenvironmental Reconstruction of the Mufara Formation (Upper Triassic, Sicily) written by Alexis Carrillat and published by . This book was released on 2001 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cette étude apporte une nouvelle contribution à la reconstruction du cadre géologique et paléoenvironnemental de la Formation Mufara (Trias supérieur, Sicile), et à la compréhension de l'évolution paléogéographique de la Néotethys. Les investigations intègrent l'analyse sédimentologique, l'analyse qualitative et quantitative des palynofaciès, la pyrolyse Rock-Eval, l'analyse des isotopes stables ([delta]13C et [delta]18O), la biostratigraphie haute résolution, et la stratigraphie génétique. L'analyse des palynofaciès et l'analyse des microfaciès ont permis de proposer un nouveau modèle environnemental pour la Formation Mufara. L'étude palynologique indique que les dépôts de la Formation Mufara se sont sédimentés entre le Longobardien terminal/Cordévolien basal et le Tuvalien terminal (Carnien). Quatre assemblages palynologiques ont été mis en évidence à l'intérieur de la phase à "Camerosporites secatus". Les analyses géochimiques associées aux palynofaciès confirment l'origine essentiellement terrestre de la matière organique et indiquent que celle-ci s'est accumulée sous des conditions oxiques à suboxiques.

The Geology and Metal Deposits of Chile

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ISBN 13 :
Total Pages : 220 pages
Book Rating : 4.:/5 (5 download)

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Book Synopsis The Geology and Metal Deposits of Chile by : James Macfarlane Little

Download or read book The Geology and Metal Deposits of Chile written by James Macfarlane Little and published by . This book was released on 1926 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Physical Properties of Alpine Rocks

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ISBN 13 :
Total Pages : 180 pages
Book Rating : 4.F/5 ( download)

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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:

High-resolution Seismic Facies of Alluvial Depositional Systems in the Lower Freshwater Molasse (Oligocene-early Miocene, Western Swiss Molasse Basin)

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ISBN 13 :
Total Pages : 126 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis High-resolution Seismic Facies of Alluvial Depositional Systems in the Lower Freshwater Molasse (Oligocene-early Miocene, Western Swiss Molasse Basin) by : Didier Morend

Download or read book High-resolution Seismic Facies of Alluvial Depositional Systems in the Lower Freshwater Molasse (Oligocene-early Miocene, Western Swiss Molasse Basin) written by Didier Morend and published by . This book was released on 2000 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: This PhD research showed the contribution of the high-resolution seismic reflection method to the seismic stratigraphic analysis of variable-scale, alluvial depositional systems in the Lower Freshwater Mollasse of the western Swiss Molasse Basin. Seismic data acquired offshore with an airgun source imaged alluvial architectural elements. Metre-thick, channel-fill complexes and flood plain deposits were clearly distinguished. On land, two types of data were recorded, each with a different source : in-hole shotgun and explosives. Data acquired with the former source imaged sandstone-filled multistory channels, but the resolution was not high enough to define their internal structure. The frequency content of the data recorded with explosives did not surely permit the distinction between sandstone- and shale-dominated bodies. More generally, the results demonstrated the potential of the method for predicting subsurface lithologies in cemented fluvial deposits, in association with outcrop and borehole studies.

Bioavailability of Nutrients Associated with Sediment and Suspension of the Danube Delta

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ISBN 13 :
Total Pages : 216 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Bioavailability of Nutrients Associated with Sediment and Suspension of the Danube Delta by : Ion-Vadim Bostan

Download or read book Bioavailability of Nutrients Associated with Sediment and Suspension of the Danube Delta written by Ion-Vadim Bostan and published by . This book was released on 2001 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comme centre de biodiversité, le Delta du Danube se trouve parmi les sites naturels les plus importants d'Europe.

Influence des colloïdes sur la toxicité des métaux (Cd, Cu, Pb, Zn) chez l'algue verte Pseudokirchneriella subcapitata

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ISBN 13 :
Total Pages : 288 pages
Book Rating : 4.F/5 ( download)

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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:

Subsurface Fluid Flow Simulation with Finite Element Method in the East Pannonian Basin

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ISBN 13 :
Total Pages : 280 pages
Book Rating : 4.F/5 ( download)

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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,

Distribution of Sedimentary Organic Matter (palynofacies) with Respect to Palaeoenvironmental Conditions

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ISBN 13 :
Total Pages : 212 pages
Book Rating : 4.F/5 ( download)

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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:

Geochronological, Structural, Isotopes and Fluid Inclusion Constraints of the Polymetallic Domo de Yauli District, Peru

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ISBN 13 :
Total Pages : 150 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Geochronological, Structural, Isotopes and Fluid Inclusion Constraints of the Polymetallic Domo de Yauli District, Peru by : Sébastien Beuchat

Download or read book Geochronological, Structural, Isotopes and Fluid Inclusion Constraints of the Polymetallic Domo de Yauli District, Peru written by Sébastien Beuchat and published by . This book was released on 2003 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'origine des gisements polymétalliques du Domo de Yauli est liée au magmatisme Miocène ayant affecté les Andes péruviennes. Cette étude met en évidence les relations géochronologiques et structurales entre les intrusions et les corps minéralisés, ainsi que les caractéristiques des fluides hydrothermaux. Les âges obtenus sur les intrusions et les minéralisations indiquent un système pulsé et répétitif durant 9 Ma, alors que les contraintes associées à la formation des gisements montrent un champ hétérogène probablement lié à l'influence de linéaments crustaux. Les rapports isotopiques de Sr, Pb, O et H associés à l'étude des inclusions fluides, par microthermométrie, spectroscopie Raman et LA-ICP-MS, révèlent l'influence d'au moins trois fluides d'origines et de caractéristiques différentes. Leur mélange a conduit à la formation des gisements, alors que les éléments économiquement intéressants ont uniquement été apportés par le fluide s'étant séparé du magma.

Long Term Dynamics of the Vegetation at the Subalpine-alpine Ecocline During the Holocene

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ISBN 13 :
Total Pages : 390 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Long Term Dynamics of the Vegetation at the Subalpine-alpine Ecocline During the Holocene by : Adriana L. Carnelli

Download or read book Long Term Dynamics of the Vegetation at the Subalpine-alpine Ecocline During the Holocene written by Adriana L. Carnelli and published by . This book was released on 2002 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil, prehistoric, charcoal, pollen, plant macrorest, phytolith, grassland, alps

Holocene Delta in Western Lake Geneva and Its Palaeoenvironmental Implications

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ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.F/5 ( download)

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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.