Dear colleagues,
This is a call to submit abstracts to the Cities on Volcanoes 10 meeting, Napoli (Italy), 2-7 September 2018 (https://www.citiesonvolcanoes
We look forward to seeing you in Naples!
Regards
Jean-Luc Le Pennec, Guido Giordano, Maurizio Mulas, Claudia Principe
SESSION DESCRIPTION: S3.14 | From old cauldrons to young quaternary calderas: context, processes, and economic potentials for geothermal energy and ore resources
“Explosive" calderas are collapsed structures formed during expulsion of large magma volumes. Some old calderas host ore deposits, while young structures are potential geothermal energy exploitation sites. Understanding how and when these calderas form and their temporal evolution is thus of importance when considering the links between geological setting, magmatic-volcanic context, and resulting economic resources. Ancient (Precambrian to Paleozoic in age) dismantled caldera structures and their altered and metamorphized deposits occur as cauldron, exposing deep roots of old collapse systems. Younger structures of Mesozoic to Cenozoic ages show the fractured-tectonized upper levels of caldera systems. Most recent calderas of quaternary age (e.g. Italy, Greece, the Pacific Ring of Fire) exhibit pristine collapse structures along with their associated tephra products, and some of them show geophysical evidence of unrest (e.g. Campi Flegrei, Laguna del Maule). The session aims at documenting, analyzing, and discussing the structure and history of these caldera systems, in order to better understand the main processes that control their formation and temporal evolution. We call for contributions from scientists working on all aspects of caldera genesis history: geology, volcanology (including petrology and geochemistry of the associated pyroclastic products), chronology of the main phases, geophysics, and numerical and analog modellings. Contributions from these volcano-geophysical approaches are crucial in predicting and quantifying geothermal and ore resources in the early exploratory stages, and in planning and implementing exploitation strategies. For this reason, the session will also put emphasis on economic resources associated with calderas systems: geothermal energy, mining, and touristic potentials.
CONVENERS:
Jean-Luc Le Pennec, IRD Ecuador office (Quito), and Université Clermont Auvergne, Labo. Magmas & Volcans, Clermont-Ferrand, France
(jeanluc.lepennec@xxxxxx)
Guido Giordano, Università Roma III, Dipartimento Scienze Geologiche, Rome, Italy
(guido.giordano@xxxxxxxxxxx)
Maurizio Mulas, Escuela Superior Politecnica de Litoral (ESPOL), Facultad de Ingenieria en Ciencias de la Tierra (FICT) , Guayaquil, Ecuador
Claudia Principe, Istituto di Geoscienze e Georisorse, Consiglio Nazionale delle Ricerche, Pisa, Italy
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