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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Dredging and canal gate technologies in Portus, the ancient harbour of Rome, reconstructed from event stratigraphy and multi-proxy sediment analysis
Quaternary International, Volume 511, Year 2019
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Description
Ancient harbours are rich archives of human-environment interaction. However, dating harbour deposits and correlating their stratigraphy is a major challenge because of typically high sedimentation rates over short periods and possible curative dredging events. Portus, the maritime harbour of Rome at the height of the Roman Empire, was a port complex composed of basins and canals connecting the commercial harbour to Rome via the Tiber River. Sediment core CPS1 in the narrowest of these canals, Canale Traverso, is located centrally in what was the capital city's commercial hub and contains a continuous harbour depositional record with average sedimentation rates greater than 1 cm per year. Here we use piston coring, high-resolution core scanning and a multi-proxy sediment analysis including for the first time paleo- and rock-magnetism, and bulk and clay mineralogy in order to overcome the problems of dating harbour deposits and correlating their stratigraphy. The method allowed precise identification of major reworked events, including a dredged deposit and a hyperpycnal deposit, which improve the chronostratigraphy and water depth reconstruction, and sheds light on harbour technologies at the height of the Roman Empire. A debris layer with abundant ceramic fragments and rocks marks the decommissioning of Canale Traverso and provides a new chronostratigraphic marker at Portus. Multi-proxy riverine input signatures point to the possible use of canal gate technology for water flow management. © 2018 Elsevier Ltd and INQUA
Authors & Co-Authors
Salomon, Ferréol
France, Strasbourg
Laboratoire Image, Ville, Environnement - Live
United Kingdom, Southampton
University of Southampton
Goiran, Jean Philippe
France, Paris
Cnrs Centre National de la Recherche Scientifique
Herries, Andy I.R.
Australia, Melbourne
La Trobe University
Heslop, David
Australia, Canberra
The Australian National University
Roberts, Andrew P.
Australia, Canberra
The Australian National University
Levchenko, V. A.
Australia, Sydney
Australian Nuclear Science and Technology Organisation
Zawadzki, Atun W.
Australia, Sydney
Australian Nuclear Science and Technology Organisation
Heijnis, Henk
Australia, Sydney
Australian Nuclear Science and Technology Organisation
Statistics
Citations: 5
Authors: 8
Affiliations: 7
Identifiers
Doi:
10.1016/j.quaint.2018.05.018
ISSN:
10406182
Research Areas
Environmental