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Evidence of Tectonic Control on the Geochemical Features of the Volatiles Vented along the Nebrodi-Peloritani Mts (Southern Apennine Chain, Italy)
Joint Authors
Italiano, Francesco
Bonfanti, Pietro
Maugeri, Salvatore Roberto
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-17, 17 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-07-04
Country of Publication
Egypt
No. of Pages
17
Main Subjects
Abstract EN
Investigations carried out over the southernmost portion of the Apennine chain (Nebrodi-Peloritani Mountains, Sicily, Italy) reveal a close connection between the tectonic setting and the regional degassing of CO2-dominated volatiles.
The geochemical features of the collected gases show that the pristine composition has been modified by gas-water interaction (GWI) and degassing processes.
The 3He/4He isotopic ratio in the range of 0.7-2.8 Ra highlights variable contributions of mantle-derived helium, representing an unusual feature for the crustal regime of the study areas characterized by the widespread presence of 4He-producer metamorphic rocks.
The degassing of mantle helium is coherent with the tectonics and related to the NW-SE extensional regime of the Calabro-Peloritan Arc (CPA).
We propose that the degassing regime as well as the geochemical features of both the dissolved and bubbling gases is closely connected to the strain accumulation rate, inducing almost no temporal changes and insignificant deep-originated fluid contributions to the locked fault volumes.
Investigations including discrete and continuous monitoring and degassing-rate estimations are useful tools to gain a better insight into the evolution of seismogenesis, considering the fault rupture as the final stage of a seismic cycle.
American Psychological Association (APA)
Italiano, Francesco& Bonfanti, Pietro& Maugeri, Salvatore Roberto. 2019. Evidence of Tectonic Control on the Geochemical Features of the Volatiles Vented along the Nebrodi-Peloritani Mts (Southern Apennine Chain, Italy). Geofluids،Vol. 2019, no. 2019, pp.1-17.
https://search.emarefa.net/detail/BIM-1154085
Modern Language Association (MLA)
Italiano, Francesco…[et al.]. Evidence of Tectonic Control on the Geochemical Features of the Volatiles Vented along the Nebrodi-Peloritani Mts (Southern Apennine Chain, Italy). Geofluids No. 2019 (2019), pp.1-17.
https://search.emarefa.net/detail/BIM-1154085
American Medical Association (AMA)
Italiano, Francesco& Bonfanti, Pietro& Maugeri, Salvatore Roberto. Evidence of Tectonic Control on the Geochemical Features of the Volatiles Vented along the Nebrodi-Peloritani Mts (Southern Apennine Chain, Italy). Geofluids. 2019. Vol. 2019, no. 2019, pp.1-17.
https://search.emarefa.net/detail/BIM-1154085
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1154085