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  • 1
    Online Resource
    Online Resource
    Saint Louis :Elsevier Science & Technology,
    Keywords: Metallogeny -- Europe. ; Geodynamics -- Europe. ; Ore deposits -- Europe. ; Electronic books.
    Description / Table of Contents: This book presents a new synthesis of the major metallogenic provinces of Europe and the geodynamic processes involved that can lead to the formation of world-class ore deposits. It represents the culmination of a 5-year research programme, GEODE, set up by the European Science Foundation, that brought together researchers across Europe from a wide range of disciplines into collaborative research projects. They focused on five metallogenic provinces across Europe; the Precambrian Fennoscandian Shield, the Upper Palaeozoic Urals, the Variscides of France and SW Iberia, the Alpine-Balkan-Carpathian-Dinaride belt and sediment-hosted deposits of Europe. Because of the long and well-known tectonic history of Europe and the diversity of ore deposits, linkages between geodynamics and ore deposit evolution have been established and new insights into mineralizing fluids and ore formation processes have been gained. Presented as a set of individual review papers and a final synthesis, this book offers a coherent and structured appraisal of geodynamics and metallogeny in Europe, with valuable lessons for mineral exploration and research throughout the world.
    Type of Medium: Online Resource
    Pages: 1 online resource (360 pages)
    Edition: 1st ed.
    ISBN: 9780080931340
    DDC: 553.4
    Language: English
    Note: Front Cover -- Geodynamics and Ore Deposit Evolution in Europe -- Copyright Page -- Table of Contents -- Preface -- Introduction -- Abstract -- 1. Introduction -- 2. The Alpine-Balkan-Carpathian-Dinaride Chain (ABCD - Papers 1, 2 and 3) -- 3. Ore deposits and geodynamics of the south-western Variscides - Papers 4 and 5 -- 4. The Urals mineral province - Paper 6 (Herrington et al.) -- 5. Basin hosted deposits - Paper 7 (Muchez et al.) -- 6. The Fennoscandian Shield Precambrian province - Paper 8 (Weihed et al.) -- CHAPTER 1. Subduction, slab detachment and mineralization: The Neogene in the Apuseni Mountains and Carpathians -- Abstract -- 1. Introduction -- 2. Overview of major ore districts -- 3. Geodynamic setting -- 4. Characteristics of Neogene ore districts -- 5. Discussion -- Acknowledgements -- References -- 1-1: Porphyry Cu-Au and epithermal Au-Ag deposits in the southern Apuseni Mountains, Romania -- 1-2: Epithermal Pb-Zn-Cu(-Au) deposits in the Baia Mare district, Eastern Carpathians, Romania -- 1-3: Epithermal Au-Ag and Pb-Zn-Cu-Ag-Au deposits of the Central Slovakia Neogene volcanic field -- CHAPTER 2. Hydrothermal ore deposits related to post-orogenic extensional magmatism and core complex formation: The Rhodope Massif of Bulgaria and Greece -- Abstract -- 1. Introduction -- 2. Geological overview -- 3. Distribution and compositional variation of Tertiary magmatism -- 4. Hydrothermal base and precious metal deposits -- 5. Discussion -- 6. Summary and conclusions -- Acknowledgments -- References -- 2-1: Pb-Zn deposits in the Madan ore field, South Bulgaria -- 2-2: Ada Tepe sedimentary-hosted, low-sulphidation epithermal Au deposit, SE Bulgaria -- CHAPTER 3. Geochronology and geodynamics of Late Cretaceous magmatism and Cu-Au mineralization in the Panagyurishte region of the Apuseni-Banat-Timok-Srednogorie belt, Bulgaria -- Abstract. , 1. Introduction -- 2. Regional tectonic evolution and geodynamic setting -- 3. Late Cretaceous magmatism -- 4. Magmatic-hydrothermal ore deposits -- 5. Geology of the Panagyurishte district -- 6. Geochronology of the Panagyurishte transect -- 7. Geochemical and isotopic character of Late Cretaceous magmas -- 8. Variation in ore deposit characteristics across the Central Panagyurishte district -- 9. Discussion and conclusions -- Acknowledgments -- References -- 3-1: The Elatsite porphyry Cu-Au deposit, Bulgaria -- 3-2: The Chelopech high-sulphidation epithermal Cu-Au deposit -- CHAPTER 4. Transpressional tectonics, lower crust decoupling and intrusion of deep mafic sills: A model for the unusual metallogenesis of SW Iberia -- Abstract -- 1. Introduction -- 2. The geological evolution of SW Iberia: tectonic framework -- 3. Ore deposits in the Ossa Morena Zone -- 4. Metallogenesis in the Iberian Pyrite Belt -- 5. Discussion -- 6. Integrated model: metallogenesis in an unconventional tectonic setting -- Acknowledgements -- References -- 4-1: The Aguablanca Ni-(Cu-PGE) deposit, SW Spain -- 4-2: The iron oxide -(Cu-Au) Deposits of SW Iberia -- CHAPTER 5. Late Variscan mineralizing systems related to orogenic processes: The French Massif Central -- Abstract -- 1. Introduction -- 2. Tectonic setting -- 3. Ore deposit formation between ca. 310 and 300 Ma -- 4. Anatomy and dynamics of the mineralizing systems -- 5. Late Variscan mineralizing systems in their geodynamic setting -- 6. Conclusions -- Acknowledgements -- References -- 5-1: Salsigne - example of a late Variscan gold deposit -- 5-2: Chataigneraie - example of a late Variscan tungsten district -- CHAPTER 6. Classification of VMS deposits: Lessons from the South Uralides -- Abstract -- 1. Introduction -- 2. The role of tectonic setting and volcanic chemistry. , 3. The role of early seafloor alteration processes including halmyrolysis -- 4. Conclusions -- Acknowledgements -- References -- 6-1: VMS Deposits of the South Urals, Russia -- CHAPTER 7. Extensional tectonics and the timing and formation of basin-hosted deposits in Europe -- Abstract -- 1. Introduction -- 2. Tectonic setting and age of Zn-Pb deposits and the Kupferschiefer Cu deposits -- 3. Geochemistry of mineralizing fluids -- 4. The role of the basement in basin-hosted deposits -- 5. Discussion and implication for exploration -- 6. Conclusions -- Acknowledgements -- References -- 7-1: SEDEX/VMS deposits in the Rhenohercynian Zone, Germany -- 7-2: Zinc-Lead deposits, Upper Silesia, Poland -- 7-3: The Navan carbonate-hosted Zn-Pb deposit, Ireland -- 7-4: Kupferschiefer Copper Deposits of SW Poland -- CHAPTER 8. Precambrian geodynamics and ore formation: The Fennoscandian Shield -- Abstract -- 1. Introduction -- 2. The geodynamics of ore formation in the Precambrian -- 3. Tectonic evolution of the Fennoscandian Shield -- 4. Ore-forming processes-relationship between ore deposits and geodynamic setting -- 5. Discussion -- 6. Conclusions -- Acknowledgements -- References -- 8-1: Fennoscandian Shield - Proterdzoic VMS deposits -- 8-2: Fennoscandian Shield - Orogenic Gold deposits -- Box 8-3: Fennoscandian Shield - Iron Oxide-Copper-Gold deposits -- Box 8-4: Fennoscandian Shield - Rogaland Anorthosite Province -- CHAPTER 9. Processes of tectonism, magmatism and mineralization: Lessons from Europe -- Abstract -- 1. Introduction -- 2. Tectonic processes conducive to the formation of major mineral provinces -- 3. The origin of magmatic-hydrothermal ore provinces -- 4. Structural controls at the scale of an ore-forming system -- 5. Timescales and driving forces of hydrothermal fluid flow. , 6. Source, transport and deposition: the conspiracy of chemical and physical processes forming major hydrothermal orebodies -- Acknowledgements -- References.
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  • 2
    Keywords: Strains and stresses -- Congresses. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (253 pages)
    Edition: 1st ed.
    ISBN: 9781483190624
    Language: English
    Note: Front Cover -- Strain Patterns in Rocks -- Copyright Page -- Table of Contents -- PREFACE -- Chapter 1. Strain analysis using the shape of expected and observed continuous frequency distributions -- INTRODUCTION -- THEORETICAL JUSTIFICATION: DISTRIBUTION CLASSIFICATION -- STRAIN ANALYSIS USING β1 vs β 2 GRAPHS -- CONCLUSIONS -- REFERENCES -- Chapter 2. Finite strain estimation using 'anti-clustered' distributions of points -- INTRODUCTION -- SOME THEORETICAL CONSIDERATIONS -- INFLATING ELLIPSE METHOD -- THE CASÉVEL SPILITE: A CASE STUDY -- SUGGESTIONS FOR FURTHER STUDY -- REFERENCES -- Chapter 3. Finite strain determination of gneiss: application of Fry's method to porphyroid in the southern Massif Central (France) -- INTRODUCTION -- THE METHOD -- GEOLOGICAL SETTING -- THE MARKERS USED IN THE PORPHYROID GNEISSES: METHODOLOGICAL IMPLICATIONS -- RESULTS -- DISCUSSION -- CONCLUSIONS -- REFERENCES -- Chapter 4. Orthographic analysis of geological structures- I. Deformation theory -- INTRODUCTION -- THE STRETCH TENSOR AND ELLIPSOID -- SURFACES RELATED TO THE STRETCH ELLIPSOID -- THE DEFORMATION TENSOR AND ELLIPSOID -- HETEROGENEOUS DEFORMATION -- CONCLUSIONS -- REFERENCES -- Chapter 5. Application of the Mohr-circle construction to problems of inhomogeneous deformation -- NOMENCLATURE -- INTRODUCTION -- MOHR CIRCLES FOR ASYMMETRIC TENSORS -- APPLICATION TO PROBLEMS OF INHOMOGENEOUS DEFORMATION -- CONCLUSIONS -- REFERENCES -- Chapter 6. The compatibility equations and the pole to the Mohr circle -- NOMENCLATURE -- INTRODUCTION -- THE EQUATIONS IN STANDARD FORM -- SIMPLIFICATION BY TRANSFORMATION -- EXPERIMENTAL VERIFICATION OF EQUATIONS -- PURE FLATTENING AND COMPACTION OF A BED -- UNIFORM AREA STRAIN -- THREE-DIMENSIONAL STRAIN DISTRIBUTIONS -- APPENDIX 1: DERIVATION OF THE FINITE STRAIN COMPATIBILITY EQUATIONS. , APPENDIX 2: TRANSFORMATION OF THE COMPATIBILITY EQUATIONS -- REFERENCES -- Chapter 7. Spatial integration of strains using finite elements -- INTRODUCTION -- MATHEMATICAL BASIS FOR USING FINITE ELEMENTS -- THE FINITE ELEMENT METHOD -- FITTING OF FINITE ELEMENTS -- ERRORS -- CONCLUSIONS -- REFERENCES -- APPENDIX -- Chapter 8. A general harmonic coordinate transformation to simulate the states of strain in inhomogeneously deformed rocks -- INTRODUCTION -- A GENERAL HARMONIC TRANSFORMATION APPLIED TO FOLDS -- INTRODUCTION OF OTHER ASSUMPTIONS TO FURTHER CONSTRAIN STATES OF STRAIN -- SUMMARY -- REFERENCES -- Chapter 9. Isotropic points and lines in strain fields -- INTRODUCTION -- FLOW MODELS -- ASSOCIATIONS OF ISOTROPIC POINTS AND LINES RESULTING FROM DOUBLET-TYPE FLOW -- ISOTROPIC POINTS RESULTING FROM SUPERPOSITION OF SEVERAL ELEMENTARY FLOWS -- THREE-DIMENSIONAL ASPECTS OF ISOTROPIC FEATURES -- DISCUSSION AND CONCLUSIONS -- REFERENCES -- APPENDIX -- Chapter 10. Estimation of volume changes by comparative chemical analyses in heterogeneously deformed rocks (folds with mass transfer) -- INTRODUCTION -- PRINCIPLES AND LIMITS OF THE VOLUME CHANGE DETERMINATION METHOD -- APPLICATIONS TO SOME FOLD EXAMPLES -- CONCLUSIONS -- REFERENCES -- Chapter 11. Kinematic and mechanical discontinuity at a coherent interface -- INTRODUCTION -- KINEMATICS -- MECHANICS -- CONCLUSIONS -- REFERENCES -- Chapter 12. A theory of finite strain variation through contrasting layers, and its bearing on cleavage refraction -- INTRODUCTION -- THEORETICAL MODEL OF TWO-DIMENSIONAL FINITE STRAIN REFRACTION -- STRAIN REFRACTION RESULTS, PLANE STRAIN -- STRAIN REFRACTION RESULTS FOR NON-PLANE-STRAIN ELLIPSOIDS -- STRAIN REFRACTION RESULTS FOR OTHER PRINCIPAL PLANES -- GENERAL FINITE STRAIN REFRACTION -- GEOLOGICAL DISCUSSION -- CONCLUSIONS -- REFERENCES -- APPENDIX 1 -- APPENDIX 2. , Chapter 13. Theoretical strain patterns in ductile zones simultaneously undergoing heterogeneous simple shear and bulk shortening -- INTRODUCTION -- MODEL -- PARTICLE PATHS -- FINITE STRAIN -- CONTRACTION ACROSS SHEAR ZONE -- PASSIVE STRAIN MARKERS -- CONCLUSIONS -- REFERENCES -- Chapter 14. Complex strain patterns developed at the frontal and lateral tips to shear zones and thrust zones -- TIPS TO THRUST AND SHEAR ZONES -- DISPLACEMENTS IN SHEAR ZONES -- DISCUSSION AND CONCLUSIONS -- REFERENCES -- APPENDIX -- Chapter 15. State of strain in a quartzite mylonite, Central Australia -- INTRODUCTION -- GENERAL GEOLOGY -- OPTICAL MICROSTRUCTURES -- STRAIN DETERMINATION -- DISCUSSION -- CONCLUSIONS -- REFERENCES -- Chapter 16. Strain pattern in the Aar Granite (Central Alps): orthogneiss developed by bulk inhomogeneous flattening -- INTRODUCTION AND GEOLOGICAL SETTING -- GEOMETRY OF LARGE-SCALE STRUCTURES -- ASPECTS OF INHOMOGENEOUS STRAIN AROUND WEAKLY-DEFORMED LENSES -- DUCTILE-DEFORMATION GRADIENTS -- FINITE STRAIN VERSUS DEGREE OF MYLONITIZATION -- DISCUSSION AND DEFORMATION MODEL -- CONCLUSIONS -- REFERENCES -- Chapter 17. Strain patterns of crescentic granitoid plutons in the Archean greenstone terrain of Ontario -- INTRODUCTION -- GREENWATER LAKE PLUTON: EXAMPLE OF AN ANTIFORMAL STRUCTURE -- McNEVIN PLUTON: EXAMPLE OF A SYNFORMAL STRUCTURE -- JACKFISH-WELLER LAKES PLUTON -- VICKERS LAKE PLUTON, A COMPOSITE ANTIFORMAL INTRUSION -- INTERPRETATION OF NATURAL STRAIN PATTERNS -- SUMMARY AND CONCLUSIONS -- REFERENCES -- Chapter 18. Strain distribution within the Pardailhan Nappe (Montagne Noire, France) and structure of its basal thrust zone: implications for events associated with nappe emplacement -- INTRODUCTION-GEOLOGICAL SETTING -- THE PARDAILHAN NAPPE -- STRAIN STUDY WITHIN THE PARDAILHAN NAPPE -- THE FABRIC ELLIPSOID FROM TEXTURE GONIOMETRY. , GEOMETRICAL ANALYSIS IN THE BASAL THRUST ZONE -- ROTATION OF FIRST PHASE MICROSTRUCTURES -- MICROSTRUCTURES IN THE THRUST ZONE -- DISCUSSION AND CONCLUSION -- REFERENCES -- Chapter 19. Finite strain patterns in some Alpine nappes -- INTRODUCTION -- THE GLARUS NAPPE -- THE MORCLES NAPPE -- THE CHARTREUSE MASSIF -- THE DIGNE NAPPE -- DISCUSSION -- REFERENCES -- Chapter 20. Patterns of folding and strain influenced by linearly anisotropic bands -- INTRODUCTION -- FIELD OBSERVATIONS OF CRENULATED FIBRES -- INTERPRETATION -- DISCUSSION -- REFERENCES -- Chapter 21. Strain patterns in an ice cap and implications for strain variations in shear zones -- INTRODUCTION -- NUMERICAL MODEL FOR STEADY-STATE PLANE FLOW -- MODIFICATION FOR RADIAL FLOW -- PERTURBATION OF FLOW- GENERAL CONSIDERATIONS -- EXAMPLE OF PERTURBATION OF GLACIAL FLOW -- DISCUSSION AND CONCLUSIONS -- REFERENCES -- Chapter 22. Strain fields in and around boudins in a clay experiment -- INTRODUCTION -- THE CLAY EXPERIMENT -- RESULTS -- DISCUSSION -- CONCLUSIONS -- REFERENCES.
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  • 3
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 273 (1978), S. 43-45 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The rocks on Groix contain a variety of structures. Cogne et al.5 identified flat-lying folds with northerly trending axes and suggested that these formed during a first deformation phase and were further flattened during a second synmetamorphic phase. Two later and relatively minor postmetamorphic ...
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    International journal of earth sciences 63 (1974), S. 357-388 
    ISSN: 1437-3262
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Description / Table of Contents: Abstract The twin 6000 m volcanoes San Pedro and San Pablo rise 2000 m above the extensive ignimbrite plateau of northern Chile. San Pablo is extinct and quite deeply eroded, San Pedro has an active fumarole and a record of several historic volcanic eruptions. Activity on both has on the whole migrated westwards with time. The volcanoes consist of pyroxene and hornblende andesite lavas with broad aprons of volcaniclastic rocks, including hot avalanche deposits, on their flanks. 30 new chemical analyses show that the composition range of the rocks composing the volcanoes is small, with silica varying between 56 and 66%, significantly higher than that of Quaternary volcanic suites of the western Pacific. The hornblende andesite lavas are very thick (commonly 100 to 200 m) indicating a high viscosity. Where such flows were erupted high on San Pedro, large portions of them collapsed when they became mechanically unstable and the resulting avalanche deposits form an important part of the volcano. Most avalanches took place when the source-lava was still hot, though so viscous that it broke by brittle fracture when it collapsed. The larger blocks have a prismatic jointing normal to their outer surface, showing that they cooled down in place after collapse. Evidence is presented that the mechanism of transport of these hot avalanches is not likely to be different from that of non-volcanic rock avalanches. Pumiceous pyroclastic flows also occur, one on the flanks of San Pedro, while others comprise the ignimbrite plateau. The latter is made up of many pyroclastic flows different from the San Pedro example only in size, and there are good grounds for believing that the ignimbrites likewise originated by eruptions on the andesitic volcanoes. Many of the ignimbrites are rhyolites, much more acidic than the andesite stratovolcanoes and a process of surface transport separation has operated whereby the andesites are concentrated on and near their source, while most of the rhyolites, because of their different style of eruption, have spread widely from it.
    Abstract: Résumé Les deux volcans San Pedro et San Pablo, hauts de 6000 m, du Chili Septentrional, s'élèvent à 2000 m au-dessus d'un vaste plateau d'ignimbrites. San Pablo est éteint et profondément érodé, tandis que San Pedro montre une activité fumerollienne après plusieurs éruptions survenues au cours de la période historique. L'activité volcanique chez les deux volcans s'est déplacée dans le temps vers l'ouest. Les volcans sont composés de laves d'andésite à pyroxène et à hornblende, avec, sur leurs flancs, des roches volcanoclastiques comprenant des dépÔts dûs à des éboulements chauds. 30 nouvelles analyses chimiques montrent que les limites de composition sont étroites, avec de 56 à 66% de silice, soit une composition nettement plus élevée que celle des roches volcaniques quaternaires du Pacifique Occidental. Etant donné leur épaisseur (100 à 200 m), les laves andésitiques à hornblende doivent avoir eu une viscosité très grande. Dans les endroits élevés de San Pedro où de telles coulées se sont épanchées, une grande partie d'entre elles se sont effondrées. Les produits de ces éboulements forment une partie importante du volcan. La plupart des éboulements se sont produits quand la lave était encore chaude, mais si visqueuse qu'elle s'est fracturée avec une cassure nette pendant l'effondrement. Les blocs les plus grands sont cassés le long de lignes perpendiculaires à leur surface extérieure, ce qui montre qu'ils se sont refroidis sur place après leur effondrement. Cela montre avec évidence que le mécanisme de transport de ces «éboulements chauds» n'est vraisemblablement pas différent de celui des éboulements non-volcaniques. Il y a aussi des coulées de laves pyroclastiques ponceuses, dont une sur les flancs du San Pedro, tandis que d'autres forment le plateau ignimbritique. Le plateau est aussi composé de nombreuses coulées pyroclastiques d'épaisseur moindre que celles du San Pedro. Il est très vraisemblable que les ignimbrites aussi proviennent des volcans andésitiques. Beaucoup d'ignimbrites sont rhyolitiques, encore plus acides que les andésites des stratovolcans. Un processus de séparation au cours du transport a concentré les andésites près du volcan, tandis que la plupart des rhyolites, à cause d'un style d'éruption différent, se sont répandues à plus grande distance.
    Notes: Zusammenfassung Die beiden 6000 m hohen Vulkane San Pedro und San Pablo erheben sich etwa 2000 m über der breiten, von Ignimbrit gebildeten Hochebene Nordchiles. San Pablo ist längst erloschen und tief erodiert; dagegen weist San Pedro mehrere historische Eruptionen und dazu eine noch aktive Fumarole auf. Bei beiden hat sich die vulkanische Tätigkeit im Laufe der Zeit nach Westen verlagert. Die Vulkane sind aus Pyroxen- und Hornblende-Andesit-Laven gebildet; ihre äußeren Flanken bestehen aus breiten vulkanoklastischen Ablagerungen, die heiße Erdrutsch-Ablagerungen einschließen. Chemische Analysen von 30 Gesteinsproben ergeben, daß die Produkte der Vulkane nur geringe chemische Schwankungen zeigen und daß die SiO2-Werte zwischen 56% und 66% liegen; deutlich höher als die SiO2-Werte der quartären westpazifischen vulkanischen Serien. Ihrer Mächtigkeit nach (100–200 m) müssen die Hornblende-Andesit-Laven eine hohe Viskosität gehabt haben. Wo solche Laven hoch auf San Pedro ausflossen, verloren größere Teile der Lava ihr Gleichgewicht und rutschten ab. Die so gebildeten Erdrutsch-Ablagerungen sind ein wichtiger Teil des ganzen Vulkans geworden. Die meisten Erdrutsche entstanden, als die Lava noch in heißem Zustand war, aber schon so hohe Viskosität hatte, daß sie mit sprödem Bruch abbrach und niederstürzte. Die größeren Brocken davon zeigen radiale, säulige Klüfte, die senkrecht zur Oberfläche laufen. Dies zeigt, daß sie nach dem Abrutschen als einzelne große Brocken gekühlt sind. Es wurde bewiesen, daß der Transportmechanismus dieser „heißen Erdrutsche“ wahrscheinlich sehr ähnlich den nicht-vulkanischen Erdrutschen ist. Bimsstein-pyroklastische Lavadecken sind auch vorhanden, eine befindet sich an der Flanke von San Pedro, während andere die Ignimbrit-Hochebene bilden. Die letztgenannte erhält ebenfalls viele pyroklastische Lavadecken von geringerer Mächtigkeit als jene von San Pedro. Es ist sehr wahrscheinlich, daß auch diese Ignimbrite ihren Ursprung an den andesitischen Vulkanen fanden. Manche von den Ignimbriten sind Rhyolithe, viel saurer als die andesitischen Stratovulkane. Die Trennung der rhyolitischen und andesitischen Laven wurde auf der Erdoberfläche durch Transport vollzogen: die Andesite wurden nahe am Vulkan angehäuft, während die meisten der Rhyolite wegen ihres völlig anderen Eruptionsvorganges weiter entfernt vom Vulkanzentrum abgelagert sind.
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