Dear colleagues,
If you are interested in presenting your work on old cauldrons to young quaternary calderas at the next Cities on Volcanoes 10 (to be held in Naples, Italy, September 2-7, 2018), please consider submitting your abstract to the Session:
S3.14 | From old cauldrons to young quaternary calderas: context, processes, and economic potentials
for geothermal energy and ore resources
Contributions to the Session are foreseen on structure and history of these caldera systems, in order to better understand the main processes that control their formation and temporal evolution..
We look forward to meeting you in Naples!
Best wishes,
Jean-Luc, Guido, Maurizio and Claudia
S3.14 | From old cauldrons to young quaternary calderas: context, processes, and economic potentials
for geothermal energy and ore resources
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 • mmulas@xxxxxxxxxxxx
Claudia Principe | Istituto di Geoscienze e Georisorse, Consiglio Nazionale delle Ricerche, Pisa, Italy • c.principe@xxxxxxxxxx
Session Abstract
“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.
Abstract submission deadline
May 10th, 2018
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