Publikationsdatum:
2021-06-22
Beschreibung:
The rocks of Alban Hills and Monti Sabatini volcanoes (Central Italy) and their associated epiclastic deposits
have been extensively used as building material in ancient Rome from about VIIIth century BCE to IVth
century CE. However, the identification of the source areas of these rocks is difficult due to the lack of an
integrated stratigraphic and geochemical analysis of the relationships between the two volcanic districts, and
to the alteration affecting the primary products as consequence of weathering and pedogenetic processes.
Here, a comprehensive, upgraded stratigraphic and geochronological review of the two volcanic districts,
corroborated by new geochronological data for several eruptive units and altered deposits is presented,
coupled to a complete geochemical background, achieved by means of newly determined major and trace
element analyses for all the main eruptive units. A study of the alteration processes of the primary products is
also presented, and the age of the main weathering and pedogenetic phases, associated to Quaternary climatic
changes, are also investigated. The results are integrated with those from literature in order to construct
discriminant diagrams based on selected trace elements, and allow us to characterize the primary and altered
volcanic deposits in the Rome area, distinguish products of different volcanic districts, discuss the effects of
different weathering processes on the mobility of some elements, and provide a reference frame for the
provenance of the volcanic materials employed in ancient Roman masonry. The interdisciplinary data set and
results presented here provide groundwork for volcanological, climate, pedological and archaeological
provenance studies.
Beschreibung:
Published
Beschreibung:
115–136
Beschreibung:
JCR Journal
Beschreibung:
restricted
Schlagwort(e):
Quaternary volcanism
;
04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous
Repository-Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Materialart:
article
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