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http://hdl.handle.net/2122/10304| Authors: | Ranaldi, M.* Lelli, M.* Tarchini, L.* Carapezza, M. L.* Patera, A.* |
Title: | Estimation of the geothermal potential of the Caldara di Manziana sitein the Sabatini Volcanic District (central Italy) by integratinggeochemical data and 3D-GIS modelling | Journal: | Geothermics | Series/Report no.: | /62 (2016) | Publisher: | Elsevier Science Limited | Issue Date: | 7-Apr-2016 | DOI: | 10.1016/j.geothermics.2016.04.003 | Keywords: | Geothermal potential of Caldera di Manziana Medium enthalpy geothermal field Soil CO2 flux survey GIS model Geothermometric-geobarometric estimations |
Subject Classification: | 04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous | Abstract: | This study evaluated the geothermal potential of Caldara di Manziana in central Italy. The chemical com-position of gas emissions was used for geothermometric-geobarometric estimations and the total amountof CO2released was assessed. The subsurface geology was reconstructed using data from deep exploratoryand shallow temperature-gradient wells. The bottom of the superficial volcanic deposits, the thickness ofthe impervious flysch cover and the top of the geothermal reservoir hosted in fractured Mesozoic lime-stones were reconstructed by a 3D-GIS modelling. Our results are consistent with a geothermal reservoir(T ∼140◦C) at ∼1000 m depth, with an estimated thermal energy capacity of 46–48 MWt. |
| Appears in Collections: | Article published / in press |
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| Geothermics62_2016.pdf | Published article | 4.84 MB | Adobe PDF |
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