VOLCANOLOGY
(objectives)
The course aims at providing the students with the fundamentals for the interpretation of volcanic processes and for the recognition, classification and interpretation of deposits. The course starts from the description of the properties of magmas and their control on the dynamics of magma ascent within volcanic conduits and therefore on the eruptive characteristics, covering the whole spectrum of effusive and explosive phenomena, both in the sub-aerial and sub-aqueous environments. During the six days filed camp, the notions acquired for the description and facies analysis of volcanic deposits, their cartography and correlation and for the reconstruction of stratigraphic sequences will be put into practice in order to reconstruct the eruptive, transport and deposition processes, as well as the alternation of eruptive cycles and quiescences. The knowledge acquired during the course is fundamental for the developments foreseen in the various curricula, regarding volcanic risk, volcanism in the various geodynamic contexts and resources offered by volcanic areas, such as geothermal energy, stone and water resources. It is necessary, for the understanding of the topics covered, to have bases of sedimentology, petrography and geochemistry.
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Code
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20410893 |
Language
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ITA |
Type of certificate
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Profit certificate
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Credits
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10
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Scientific Disciplinary Sector Code
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GEO/08
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Contact Hours
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64
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Type of Activity
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Core compulsory activities
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Teacher
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GIORDANO GUIDO
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Dates of beginning and end of teaching activities
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From to |
Attendance
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not mandatory
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Teacher
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VONA ALESSANDRO
(syllabus)
INTRODUCTION (SHORT HISTORY OF THE STUDIES IN VOLCANOLOGY; TERMINOLOGY OF THE VOLCANIC PRODUCTS; FACIES ANALYSES OF VOLCANIC DEPOSITS; PYROCLASTIC AND VOLCANOCLASTIC ROCKS AS KEY- ELEMENTS TO INTERPRET THE EXPLOSIVE AND POST ERUPTIVE PROCESSES IN THE RELATED ENVIRONMENTS).
CLASSIFICATION OF THE EFFUSIVE AND EXPLOSIVE DEPOSITS. COMPONENTS, TEXTURES AND STRUCTURES OF VOLCANIC AND VOLCANICLASTIC DEPOSITS. CLASSIFICATION OF PYROCLASTIC AND VOLCANOCLASTIC DEPOSITS. DEPOSITIONAL AND EROSIVE PROCESSES IN VOLCANIC AREAS.
MORPHOLOGY OF VOLCANOES: MONOGENETIC AND POLYGENETIC VOLCANOES.
THE PROCESS OF MAGMA RISING: THE EFFUSIVE PROCESS (LAVA FLOWS IN SUBAERIAL AND SUBAQUEOUS ENVIRONMENTS). MAGMA EXSOLUTION AND FRAGMENTATION (THE EXPLOSIVE ERUPTIONS, STYLES OF MAGMA FRAGMENTATION, RELATED MICRO-TEXTURE). TRANSPORT AND EMPLACEMENT MECHANISM OF THE EFFUSIVE AND EXPLOSIVE PRODUCTS AND RELATED DEPOSITS IN SUBAERIAL AND SUBAQUEOUS ENVIRONMENTS. BALLISTIC PATHWAYS OF LARGE CLASTS.
MAIN CHARACTERISTICS OF THE ERUPTIONS AND CLASSIFICATION OF THE ERUPTIVE STYLES.
MAIN CONCEPTS OF VOLCANIC HAZARD AND RISK.
(reference books)
FROM MAGMA TO TEPHRA: MODELING PHYSICAL PROCESSES OF EXPLOSIVE VOLCANIC ERUPTIONS. EDITED BY ARMIN FREUNDT AND MAURO ROSI, 2000. ELSEVIER. VOLCANIC SUCCESSIONS. CAS R.A.F. & WRIGHT J.V., 1987. ALLEN & UNWIN PYROCLASTIC ROCKS R.V. FISHER AND H.-U. SCHMINCKE, 1984. SPRINGER. ENCYCLOPEDIA OF VOLCANOES. EDITED BY HARALDUR SIGURDSSON, BRUCE HOUGHTON, HAZEL RYMER, JOHN STIX, STEVE MCNUTT, 2000. ACADEMIC PRESS. FUNDAMENTALS OF PHYSICAL VOLCANOLOGY. E.A. PARFITT, L. WILSON 2008. BLACKWELL, OXFORD, PAPERBACK, 256 PAGES, ISBN: 978-0-632-05443-5
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Dates of beginning and end of teaching activities
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From to |
Delivery mode
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Traditional
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Attendance
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Mandatory
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Evaluation methods
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Oral exam
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