Buried and Submerged G reek Archaeological Coastal Structures and Artifacts as Gauges to Measure Late H olocene Seafloor Subsidence off C alabria, I taly

Bibliographic Data

ID12133804
AuthorsJean‐Daniel Stanley (Geoarchaeology Program Department of Paleobiology Smithsonian Institution Washington DC, corresponding author), Maria Pia Bernasconi (Dipartimento di Scienze della Terra Università della Calabria Rende (CS) Italy)
Year2012
Volume27
Issue3
Pages189-205
Publication date2012-04-19
Open AccessYes
TypeARTICLE
VenueGeoarchaeology (JOURNAL)
Journal identifiersISSN: 0883-6353 • E-ISSN: 1520-6548
PublisherWiley (PUBLISHER • GB)
DOI10.1002/gea.21405
OpenAlexW1837225260
LanguageEN
Citations received9
References cited46

This synthesis integrates recently acquired archaeological and geological data with earlier documented observations to shed light on the subsidence of ancient G reek coastal facilities in southern I taly. These are now positioned between former shorelines and inner shelf sectors at five C alabrian margin localities. Submergence of coastal to inner shelf facilities has resulted in part from sea‐level rise by about 2 m associated with glacio‐hydro‐isostatic factors since archaic to classic G reek time. This phenomenon alone, however, does not explain the wide variation of measured subsidence rates from site‐to‐site. The marked lowering of coastal site substrates by seismo‐tectonic activity (including extensional fault motion), stratal readjustments at depth, and compaction of underlying sediment sequences is significant. Four of the subsided facilities are positioned near emerged C alabrian areas where prevailing H olocene average annual land uplift rates range to ̃1.0 mm/yr; at the fifth, near H ipponion, terrains have risen by nearly 2 mm/yr. In marked contrast, submerged and/or buried structures record the following late H olocene long‐term average rates of coastal margin subsidence: S ybaris‐ T huri on the T aranto G ulf margin ( ̃0.5–1.0 mm/yr); H ipponion‐ V ibo V alentia along the T yrrhenian coast ( ̃0.8 to ̃3.2 mm/yr); and L ocri‐ E pizefiri, K aulonia, and C apo C olonna on C alabria's I onian margin ( ̃1.6, ̃1.6–2.4, and ̃4.0 mm/yr, respectively). © 2012 Wiley Periodicals, Inc

Compaction · Geomorphology · Seafloor Spreading · Sediment · Shore · Structural basin · Subsidence · Coastal and Marine Dynamics · Geological formations and processes · Maritime and Coastal Archaeology · Geology · Oceanography

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