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Integrated approach for the reconstruction of stratigraphy and geology of Quaternary volcanic terrains; an application to the Vulsini Volcanoes (central Italy)

D. M. Palladino, S. Simei, G. Sottili and R. Trigila
Integrated approach for the reconstruction of stratigraphy and geology of Quaternary volcanic terrains; an application to the Vulsini Volcanoes (central Italy) (in Stratigraphy and geology of volcanic areas, Gianluca Groppelli (editor) and Lothar Viereck-Goette (editor))
Special Paper - Geological Society of America (April 2010) 464: 63-84

Abstract

Modern stratigraphic studies and field mapping of Quaternary volcanic terrains require a multidisciplinary approach for the reconstruction of the time-space history of a volcanic area (e.g., activity phases, eruptive sources, compositional changes, volcano build-up and collapse events) within the framework of concomitant and/or genetically related geological events acting on regional to global scales (e.g., tectonism, climate changes, glacio-eustatism). Here, we report recent results on the stratigraphy, structure, and evolution of the southern part of the Vulsini volcanic district (0.6-0.1 Ma), Roman Province, in the light of a new geological survey for the 1:50,000 map of Italy (CARG Project). We focus on the integration of different kinds of stratigraphic units, including lithostratigraphic, lithosomatic, and unconformity-bounded stratigraphic (UBS) units, to define and group mappable volcanic bodies. Lithostratigraphic units are characterized in terms of textural features, indicative of eruptive and emplacement scenarios, and rock-type compositions. The intervening stratigraphic discontinuities are defined in terms of nature, position, and areal extent, and they are attributed to local depositional processes versus significant temporal hiatuses in the eruptive activity or regional and interregional geological events. The mapped volcanic units are thus correlated to lithosomatic units, corresponding to volcanic source edifices, as well as to the local and regional UBS unit settings recently defined for the Tyrrhenian coast nearby. On these grounds, we illustrate the geological evolution of the study area as the interplay of constructional and destructional volcanic activity, erosion, pedogenesis, secondary volcaniclastic sedimentation during intereruptive periods, and sea-level fluctuations.


ISSN: 0072-1077
EISSN: 2331-219X
Coden: GSAPAZ
Serial Title: Special Paper - Geological Society of America
Serial Volume: 464
Title: Integrated approach for the reconstruction of stratigraphy and geology of Quaternary volcanic terrains; an application to the Vulsini Volcanoes (central Italy)
Title: Stratigraphy and geology of volcanic areas
Author(s): Palladino, D. M.Simei, S.Sottili, G.Trigila, R.
Author(s): Groppelli, Gianlucaeditor
Author(s): Viereck-Goette, Lothareditor
Affiliation: Universita La Sapienza, Dipartimento di Scienze della Terra, Rome, Italy
Affiliation: CNR, Istituto per la Dinamica dei Processi Ambientale, Milan, Italy
Pages: 63-84
Published: 201004
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 56
Accession Number: 2010-064055
Categories: Quaternary geologyIgneous and metamorphic petrology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. sects., 2 tables, geol. sketch maps
N41°13'60" - N42°49'60", E11°30'00" - E14°00'00"
Secondary Affiliation: Friedrich-Schiller-Universitaet Jena, DEU, Federal Republic of Germany
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 201035
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