The Sabatini Volcanic District belongs to the Roman magmatic province of Central Italy, and the Tufo Giallo della Via Tiberina was one of the most voluminous pyroclastic flow-forming eruptions in this district. Post-depositional processes strongly affected this pyroclastic flow deposit leading to the crystallization of different authigenic phases (chabazite, phillipsite, feldspar). A field volcanological survey, along with a careful mineralogical characterization of a large amount of samples of the lithified facies, allowed us to reconstruct a type section primarily based on the amounts of the main authigenic phases. Chabazite always prevailed over phillipsite throughout the entire section, although in the innermost portions of the deposit, where temperatures remained high, chabazite mostly converted into a more stable phase such as an adularia-like phase. In addition to the zeolitization process, the fairly strong mechanical properties of this tuff can be also ascribed to the diffuse occurrence of microcrystalline calcite, which re-precipitated as a secondary phase after the dissolution of carbonaceous clasts.

The “Tufo Giallo della Via Tiberina” (Sabatini Volcanic District, Central Italy): a complex system of lithification in a pyroclastic current deposit / Cappelletti, P; Petrosino, P; de Gennaro, M; Colella, A; Graziano, S. F.; D’Amore, M; Mercurio, M; Cerri, Guido; de Gennaro, R; Rapisardo, G; Langella, A.. - In: MINERALOGY AND PETROLOGY. - ISSN 0930-0708. - 109:(2015), pp. 85-101. (Intervento presentato al convegno “Zeolite 2014” 9th International Conference on the Occurrence, Properties, and Utilization of Natural Zeolites tenutosi a Belgrade, Serbia nel 8–11 June 2014) [10.1007/s00710-014-0357-z].

The “Tufo Giallo della Via Tiberina” (Sabatini Volcanic District, Central Italy): a complex system of lithification in a pyroclastic current deposit

CERRI, Guido;
2015-01-01

Abstract

The Sabatini Volcanic District belongs to the Roman magmatic province of Central Italy, and the Tufo Giallo della Via Tiberina was one of the most voluminous pyroclastic flow-forming eruptions in this district. Post-depositional processes strongly affected this pyroclastic flow deposit leading to the crystallization of different authigenic phases (chabazite, phillipsite, feldspar). A field volcanological survey, along with a careful mineralogical characterization of a large amount of samples of the lithified facies, allowed us to reconstruct a type section primarily based on the amounts of the main authigenic phases. Chabazite always prevailed over phillipsite throughout the entire section, although in the innermost portions of the deposit, where temperatures remained high, chabazite mostly converted into a more stable phase such as an adularia-like phase. In addition to the zeolitization process, the fairly strong mechanical properties of this tuff can be also ascribed to the diffuse occurrence of microcrystalline calcite, which re-precipitated as a secondary phase after the dissolution of carbonaceous clasts.
2015
The “Tufo Giallo della Via Tiberina” (Sabatini Volcanic District, Central Italy): a complex system of lithification in a pyroclastic current deposit / Cappelletti, P; Petrosino, P; de Gennaro, M; Colella, A; Graziano, S. F.; D’Amore, M; Mercurio, M; Cerri, Guido; de Gennaro, R; Rapisardo, G; Langella, A.. - In: MINERALOGY AND PETROLOGY. - ISSN 0930-0708. - 109:(2015), pp. 85-101. (Intervento presentato al convegno “Zeolite 2014” 9th International Conference on the Occurrence, Properties, and Utilization of Natural Zeolites tenutosi a Belgrade, Serbia nel 8–11 June 2014) [10.1007/s00710-014-0357-z].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11388/58999
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