ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    facet.materialart.
    Unknown
    Geological and geochemical analysis for the individuation of regional discontinuities: the Comino valley (Southern Latium, Central Italy) (2012)
    Details
    Publication Date: 2019-12-05
    Description: A multidisciplinary study based mainly on aerophotogeological interpretation and geochemical prospectings were performed in the Comino valley area which extends between Vicalvi and San Donato Val di Comino villages. The studied area covers 70 km2 of a considered key-area in the geological-seismic framework of the Central Apennines. The Comino valley is located in the SW sector of the Central Apennine (Southern Latium) where the “Val Roveto-Atina-Caserta” regional fault has been studied since many years. Indeed, according with some authors, this fault can be interpreted as a crustal discontinuity probably corresponding to a deep step of the Moho. The studied area is also characterized by the presence of secondary tectonic lineaments (e.g. San Donato-Val Comino fault) having a typical Apenninic orientation (NW-SE). The Comino valley is affected by high seismic activity: last destructive earthquake was in May 7, 1984 (ML 5.9) while during 2009 many seismic events (ML 〈 4) have occurred for several months suggesting a new micro-seismic activity. The spatial soil-gas distributions have been compared with the location and orientation of brittle deformations described in the literature and/or recognized by new field surveys, as well as with morphotectonic features obtained by photogeological analysis. Soil gas results show a pervasive character of the radon, helium and methane values. Soil gas prospecting together with geological survey has provided an inedited and detailed mapping of the structural setting of the studied area and in particular new data about the Comino valley have been acquired. The identified structural lineaments by geological survey as well as the He, CH4 and Rn anomalies in soil gas in correspondence of lineament crossing, suggest that such faults may be considered as the surface expression of a deep structure network (probably down to the Moho) playing a role of important avenue for a vertical and rapid migration of endogenetic gases. In particular, the high Rn median value (51.80 Bq/L) in an area without shallow possible radon sources, suggests a deep origin for this gas and therefore a vertical migration through fractured media, i.e. faults and fractures. The elongated gas anomalies show that the area is characterized by tectonic discontinuities oriented mainly NNW-SSE in accordance with and linked to the regional Val Roveto-Atina-Caserta fault and WSW-ENE that suggest transversal fractured zones. The investigated area is also interested by mineralized springs with a high gaseous component: CO2 is the dominant gas (concentrations 〉 95 %, v/v) but also discrete amounts of CH4 have been measured (max value: 4200 ppm). The spatial distribution of thermal springs, cold CO2-rich springs and localized gas emissions suggests that the structural framework of the studied area, i.e. the bordering faults of buried structural highs of the carbonate basement, exerts a strong control on the uprising patterns of fluids.
    Description: Unpublished
    Description: Torino (Italy)
    Description: 3.2. Tettonica attiva
    Description: open
    Keywords: : Val Roveto-Atina-Caserta fault, Moho step, soil gas geochemistry, radon anomalies ; 04. Solid Earth::04.04. Geology::04.04.12. Fluid Geochemistry
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Oral presentation
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 2
    facet.materialart.
    Unknown
    Progetto RETRACE-3D - centRal italy EarThquakes integRAted Crustal modEl - Rapporto Finale (2021)
    Details
    Publication Date: 2022-04-22
    Description: Il progetto RETRACE-3D (centRal italy EarThquakes integRAted Crustal modEl) è volto alla caratterizzazione tridimensionale, geologica e sismotettonica, del volume di crosta terrestre che a partire dal 24 agosto 2016 è stato interessato dai terremoti di Amatrice, Visso e Norcia, e dalla relativa sequenza sismica. Il progetto è il risultato di una collaborazione tra il Dipartimento della Protezione Civile, l’Istituto Nazionale di Geofisica e Vulcanologia (INGV), il Consiglio Nazionale delle Ricerche che partecipa con l’Istituto di Geologia Ambientale e Geoingegneria (CNR-IGAG) e l’Istituto per il Rilevamento Elettromagnetico dell’Ambiente (CNR-IREA) e l’Istituto Superiore per la Protezione e la Ricerca Ambientale (ISPRA), con la collaborazione di Eni e Total, realtà private ma anch’esse parte del Servizio nazionale della Protezione Civile, che hanno messo a disposizione i propri dati di sottosuolo.
    Description: INGV, ISPRA, CNR-IGAG, DPC
    Description: Published
    Description: 1T. Struttura della Terra
    Description: 2T. Deformazione crostale attiva
    Description: 3T. Fisica dei terremoti e Sorgente Sismica
    Description: 4T. Sismicità dell'Italia
    Description: 5T. Sismologia, geofisica e geologia per l'ingegneria sismica
    Description: 2IT. Laboratori analitici e sperimentali
    Description: 3IT. Calcolo scientifico
    Description: 4IT. Banche dati
    Keywords: Central Appennines ; 2016 seismic sequence ; Seismotectonics ; 3D geological model
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: report
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 3
    facet.materialart.
    Unknown
    Progetto RETRACE-3D - centRal italy EarThquakes integRAted Crustal modEl - Modello Geologico (2021)
    Details
    Publication Date: 2022-04-22
    Description: Three-dimensional geological model of the area of the central Apennines affected by the 2016-2018 seismic sequence. The model consists of stratigraphic surfaces (top or basal unconformity of units, or sequences of units, with homogeneous behavior) and main faults of the area. The stratigraphic surfaces are, from the oldest to the most recent: the top of pre-Upper Triassic units, the top of the intra-Triassic units, the top of Calcare Massiccio, the top of the Marne
    Description: INGV, ISPRA, CNR-IGAG, DPC.
    Description: Published
    Description: 1T. Struttura della Terra
    Description: 2T. Deformazione crostale attiva
    Description: 3T. Fisica dei terremoti e Sorgente Sismica
    Description: 4T. Sismicità dell'Italia
    Description: 5T. Sismologia, geofisica e geologia per l'ingegneria sismica
    Description: 2TR. Ricostruzione e modellazione della struttura crostale
    Keywords: Central Appennines ; 2016 seismic sequence ; Seismotectonics ; 3D geological model
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: report
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...