Fluid conduits and shallow-reservoir structure defined by geoelectrical tomography at the Nirano Salse (Italy)
<p>Mud volcanoes are fluid escape structures allowing for surface venting of hydrocarbons (mostly gas but also liquid condensates and oils) and water–sediment slurries. For a better understanding of mud volcano dynamics, the characterization of the fluid dynamics within mud volcano conduits; t...
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2023-08-01
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| Series: | Natural Hazards and Earth System Sciences |
| Online Access: | https://nhess.copernicus.org/articles/23/2719/2023/nhess-23-2719-2023.pdf |
| _version_ | 1797756349178707968 |
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| author | G. Romano M. Antonellini D. Patella A. Siniscalchi A. Tallarico S. Tripaldi A. Piombo |
| author_facet | G. Romano M. Antonellini D. Patella A. Siniscalchi A. Tallarico S. Tripaldi A. Piombo |
| author_sort | G. Romano |
| collection | DOAJ |
| description | <p>Mud volcanoes are fluid escape structures allowing for surface venting of hydrocarbons (mostly gas but also liquid condensates and oils) and water–sediment slurries. For a better understanding of mud volcano dynamics, the characterization of the fluid dynamics within mud volcano conduits; the presence, extent, and depth of the fluid reservoirs; and the connection among aquifers, conduits, and mud reservoirs play a key role. To this aim, we performed a geoelectrical survey in the Nirano Salse Regional Nature Reserve, located at the edge of the northern Apennines (Fiorano Modenese, Italy), an area characterized by several active mud fluid vents. This study, for the first time, images the resistivity structure of the subsoil along two perpendicular cross sections down to a depth of 250 m. The electrical models show a clear difference between the northern and southern sectors of the area, where the latter hosts the main discontinuities. Shallow reservoirs, where fluid muds accumulate, are spatially associated with the main fault/fracture controlling the migration routes associated with surface venting and converge at depth towards a common clayey horizon. There is no evidence of a shallow mud caldera below the Nirano area. These findings represent a step forward in the comprehension of the Nirano Salse plumbing system and in pinpointing local site hazards, which promotes safer tourist access to the area along restricted routes.</p> |
| first_indexed | 2024-03-12T17:59:07Z |
| format | Article |
| id | doaj.art-149bb40e6c01449d822a63e604e60bcc |
| institution | Directory Open Access Journal |
| issn | 1561-8633 1684-9981 |
| language | English |
| last_indexed | 2024-03-12T17:59:07Z |
| publishDate | 2023-08-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Natural Hazards and Earth System Sciences |
| spelling | doaj.art-149bb40e6c01449d822a63e604e60bcc2023-08-02T13:05:06ZengCopernicus PublicationsNatural Hazards and Earth System Sciences1561-86331684-99812023-08-01232719273510.5194/nhess-23-2719-2023Fluid conduits and shallow-reservoir structure defined by geoelectrical tomography at the Nirano Salse (Italy)G. Romano0M. Antonellini1D. Patella2A. Siniscalchi3A. Tallarico4S. Tripaldi5A. Piombo6Dipartimento di Scienze della Terra e Geoambientali, Università degli Studi di Bari Aldo Moro, Campus Universitario, via Orabona n. 4, 70125 Bari, ItalyDipartimento di Scienze Biologiche, Geologiche e Ambientali, Alma Mater Studiorum – Università di Bologna, Piazza di Porta S. Donato 1, Bologna, ItalyDipartimento di Scienze della Terra e Geoambientali, Università degli Studi di Bari Aldo Moro, Campus Universitario, via Orabona n. 4, 70125 Bari, ItalyDipartimento di Scienze della Terra e Geoambientali, Università degli Studi di Bari Aldo Moro, Campus Universitario, via Orabona n. 4, 70125 Bari, ItalyDipartimento di Scienze della Terra e Geoambientali, Università degli Studi di Bari Aldo Moro, Campus Universitario, via Orabona n. 4, 70125 Bari, ItalyDipartimento di Scienze della Terra e Geoambientali, Università degli Studi di Bari Aldo Moro, Campus Universitario, via Orabona n. 4, 70125 Bari, ItalyDipartimento di Fisica e Astronomia “Augusto Righi”, Alma Mater Studiorum – Università di Bologna, Viale Berti Pichat 6/2, Bologna, Italy<p>Mud volcanoes are fluid escape structures allowing for surface venting of hydrocarbons (mostly gas but also liquid condensates and oils) and water–sediment slurries. For a better understanding of mud volcano dynamics, the characterization of the fluid dynamics within mud volcano conduits; the presence, extent, and depth of the fluid reservoirs; and the connection among aquifers, conduits, and mud reservoirs play a key role. To this aim, we performed a geoelectrical survey in the Nirano Salse Regional Nature Reserve, located at the edge of the northern Apennines (Fiorano Modenese, Italy), an area characterized by several active mud fluid vents. This study, for the first time, images the resistivity structure of the subsoil along two perpendicular cross sections down to a depth of 250 m. The electrical models show a clear difference between the northern and southern sectors of the area, where the latter hosts the main discontinuities. Shallow reservoirs, where fluid muds accumulate, are spatially associated with the main fault/fracture controlling the migration routes associated with surface venting and converge at depth towards a common clayey horizon. There is no evidence of a shallow mud caldera below the Nirano area. These findings represent a step forward in the comprehension of the Nirano Salse plumbing system and in pinpointing local site hazards, which promotes safer tourist access to the area along restricted routes.</p>https://nhess.copernicus.org/articles/23/2719/2023/nhess-23-2719-2023.pdf |
| spellingShingle | G. Romano M. Antonellini D. Patella A. Siniscalchi A. Tallarico S. Tripaldi A. Piombo Fluid conduits and shallow-reservoir structure defined by geoelectrical tomography at the Nirano Salse (Italy) Natural Hazards and Earth System Sciences |
| title | Fluid conduits and shallow-reservoir structure defined by geoelectrical tomography at the Nirano Salse (Italy) |
| title_full | Fluid conduits and shallow-reservoir structure defined by geoelectrical tomography at the Nirano Salse (Italy) |
| title_fullStr | Fluid conduits and shallow-reservoir structure defined by geoelectrical tomography at the Nirano Salse (Italy) |
| title_full_unstemmed | Fluid conduits and shallow-reservoir structure defined by geoelectrical tomography at the Nirano Salse (Italy) |
| title_short | Fluid conduits and shallow-reservoir structure defined by geoelectrical tomography at the Nirano Salse (Italy) |
| title_sort | fluid conduits and shallow reservoir structure defined by geoelectrical tomography at the nirano salse italy |
| url | https://nhess.copernicus.org/articles/23/2719/2023/nhess-23-2719-2023.pdf |
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