Hydrogeochemistry of the Campania region in southern Italy

Duchi, Vittorio; Minissale, A.; Vaselli, Orlando; Ancillotti, Monica

doi:10.1016/0377-0273(94)00109-t

Cited by 42 publications

(22 citation statements)

References 34 publications

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“…Positive δ 13 C values clearly indicate that a significant carbon source must be envisaged from the crust and, conversely, that organic, soil‐derived carbon is minor (Chiodini et al ., ; Minissale, ). This is in agreement with the geochemical signature of the main springs (Duchi et al ., ).…”

Section: Discussion and Concluding Remarkssupporting

confidence: 85%

Tufa and travertines of southern Italy: deep‐seated, fault‐relatedCO₂as the key control in precipitation

et al. 2013

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Continental carbonates of Quaternary age in southern Italy commonly exhibit the facies of calcareous tufa, often reported as related to shallow aquifers fed by meteoric waters and to organic processes. A close spatial relationship exists between the mappable tufa deposits and major Quaternary extensional faults. With respect to the Ca‐Mg‐HCO3 composition of limestone aquifers’ springs, tufa‐depositing springs exhibit higher salinity and alkalinity, are slightly warmer, have lower pH and are enriched in SO4 and CO2. Their δ13C values are systematically positive and compatible with a deep‐seated carbon source. A clear input of soil‐derived organic carbon is indicated only for small, non‐mappable tufas deposited by perched springs. The dataset indicates that the large tufa deposits owe their origin to a supplementary source of CO2 advected by degassing through active faults, as a necessary prerequisite for inducing a rise of total dissolved salts and alkalinity. Meteoric waters that have come from a shallow aquifer are able to precipitate only limited amount of carbonates.

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Section: Discussion and Concluding Remarkssupporting

confidence: 85%

Tufa and travertines of southern Italy: deep‐seated, fault‐relatedCO₂as the key control in precipitation

et al. 2013

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“…The data indicate that the waters are brackish, and not dissimilar in composition to the spring and groundwaters studied by Duchi et al (1995) and Conti et al (2000). These are considered to be connate waters.…”

Section: Watersmentioning

confidence: 83%

“…Etna and Vesuvius), but also by geothermal springs and other types of fluid emission. Duchi et al (1995) reported that thermal and cold springs of the Campania region of southern Italy were dominated by CO 2 associated with Vesuvius, Solfatara and Roccamonfina volcanic areas. Chiodini et al (1996) linked the CO 2 emissions of the Paternó mud volcanoes to Mount Etna.…”

Section: Discussionmentioning

confidence: 98%

“…Minissale et al (2000) noted that these gases are relatively enriched in helium, and suggested that this indicates an enrichment in crustal radiogenic 4 He and long underground residence times. Analytical details from Duchi et al (1995) indicate that the gases from the Malvizza mud volcano, which is also dominated by methane, were derived from an oil reservoir in organic-rich Tertiary sediments.…”

Section: Gasesmentioning

confidence: 98%

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Mud volcanoes of Italy

Martinelli

Judd

2004

Geological Journal

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The locations and information about the sizes of 61 mud volcanoes on the Italian mainland and Sicily, plus an area of mud diapirism in the Italian Adriatic Sea, are presented. Data about the emission products are also provided. The majority of these mud volcanoes are found where thick sedimentary sequences occur within a zone of tectonic compression associated with local plate tectonic activity: the movement of the Adriatic microplate between the converging African and Eurasian plates. The principal gas emitted by these mud volcanoes is methane, which probably originates from deep within the sediments. Other mud volcanoes, associated with igneous volcanism, produce mainly carbon dioxide. The mud diapirs in the Adriatic Sea are thought to form as a result of the mobilization of shallow gassy sediments. It has been shown that radon emissions from mud volcanoes are indicators of forthcoming earthquake events.

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“…The occurrence of oxidation into the basin is suggested by the presence of hematite. A second possibility is based to the presence of several sulphate‐rich water springs along the nearby (5 km away) Sele valley, which are alimented by the hydrogeological structure of eastern sector of Picentini Mountains [ Duchi et al , 1995], i.e., the same sector where Piano del Gaudo lake was active in the Middle Pleistocene.…”

Section: Discussionmentioning

confidence: 99%

Post‐deformational growth of late diagenetic greigite in lacustrine sediments from southern Italy

Porreca¹,

Mattei²,

Vincenzo³

2009

Geophysical Research Letters

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[1] Paleomagnetic, rock magnetic and micro-textural analyses from a Middle Pleistocene lacustrine sequence in the southern Apennines (Italy) indicate the presence of greigite and magnetite as the main magnetic minerals at different stratigraphic levels. In all cases a normal polarity characteristic remanent magnetization (ChRM) was observed, in agreement with an 40 Ar-39 Ar age of 0.712 ± 0.018 Ma from volcaniclastic sanidine. After correction for bedding tilt, ChRM directions carried by greigite do not coincide with the expected geocentric axial dipole field direction at the site latitude, whereas the magnetite ChRMs directions do. The data indicate that the greigite magnetization was acquired after tilting and after lock-in of the magnetite ChRM. The estimated delay for the remanence carried by greigite with respect to deposition is $300 ka. Scanning electron microscope analyses indicate that alteration of detrital volcanic minerals has occurred and that authigenic greigite is generally present in agglomerates and around volcanic grains. This observation is consistent with a late diagenetic origin of greigite due to anoxic conditions and availability of dissolved sulfide associated with decomposition of organic matter in the paleolake. Documentation of a late diagenetic magnetization confirms that care should be taken when using greigite-bearing sediments for magnetostratigraphic and tectonic studies. Citation: Porreca, M., M. Mattei, and G. Di Vincenzo (2009), Post-deformational growth of late diagenetic greigite in lacustrine sediments from southern Italy, Geophys. Res. Lett., 36, L09307,

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Hydrogeochemistry of the Campania region in southern Italy

Cited by 42 publications

References 34 publications

Tufa and travertines of southern Italy: deep‐seated, fault‐relatedCO₂as the key control in precipitation

Tufa and travertines of southern Italy: deep‐seated, fault‐relatedCO₂as the key control in precipitation

Mud volcanoes of Italy

Post‐deformational growth of late diagenetic greigite in lacustrine sediments from southern Italy

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Hydrogeochemistry of the Campania region in southern Italy

Cited by 42 publications

References 34 publications

Tufa and travertines of southern Italy: deep‐seated, fault‐relatedCO2as the key control in precipitation

Tufa and travertines of southern Italy: deep‐seated, fault‐relatedCO2as the key control in precipitation

Mud volcanoes of Italy

Post‐deformational growth of late diagenetic greigite in lacustrine sediments from southern Italy

Contact Info

Product

Resources

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Tufa and travertines of southern Italy: deep‐seated, fault‐relatedCO₂as the key control in precipitation

Tufa and travertines of southern Italy: deep‐seated, fault‐relatedCO₂as the key control in precipitation