Geoarchaeology confirms location of the ancient harbour basin of Ostia (Italy)

被引:58
|
作者
Goiran, Jean-Philippe [1 ]
Salomon, Ferreol [2 ]
Mazzini, Ilaria [3 ]
Bravard, Jean-Paul [2 ]
Pleuger, Elisa [1 ]
Vittori, Cecile [1 ]
Boetto, Giulia [4 ]
Christiansen, Jonatan [5 ]
Arnaud, Pascal [5 ]
Pellegrino, Angelo [6 ]
Pepe, Caterina [7 ,8 ]
Sadori, Laura [7 ]
机构
[1] CNRS, UMR 5133, F-69007 Lyon, France
[2] Univ Lyon, UMR 5600, Lyon, France
[3] Univ Roma TRE, Dipartimento Sci, Rome, Italy
[4] Aix Marseille Univ, CNRS, Ctr Camille Jullian, UMR 7299, Marseille, France
[5] Univ Lyon, UMR 5189, Lyon, France
[6] Soprintendenza Spectate & Beni Archeol Roma, Rome, Italy
[7] Univ Roma La Sapienza, Dipartimento Biol Ambientale, Rome, Italy
[8] Univ Roma La Sapienza, Dipartimento Sci Terra, Rome, Italy
关键词
Harbour; Geoarchaeology; Stratigraphy; Ostia; Rome; Tiber; Mediterranean Sea; TIBER RIVER DELTA; MARGINAL MARINE; COASTAL EVOLUTION; STRATIGRAPHY; LANDSCAPE; OSTRACODS; PORTUS;
D O I
10.1016/j.jas.2013.08.019
中图分类号
Q98 [人类学];
学科分类号
030303 ;
摘要
To the northwest of the ancient city of Ostia, the analysis of cores revealed a stratigraphic sequence, which we interpret as the filling of a harbour basin. This basin, located at the west of the so-called "Palazzo Imperiale" presents seven characteristics: (1) The maximum depth is 6 m below the Roman sea level. This depth allowed any type of ship (even heavy tonnage) to access the harbour. (2) A chronostratigraphic gap at -6 m below Roman sea level suggests digging operations in the basin (or subsequent dredging) that have caused the loss of sedimentary archives. (3) The filling consists of dark clays typical of a quiet environment but open to marine and river influences. (4) The dates at the base of this sequence give a range between the 4th and the 2nd century BC. (5) In the harbour sequence, a fades change at -2.5 m under the Roman sea level involves a change in the processes of sedimentation and/or operation. (6) No later than the beginning of the 1st century AD, the thickness of the water column in the basin is less than 50 cm and seems to be caused by a massive siltation following a succession of floods of the Tiber. (7) This basin was thus already abandoned during the start-up of Portus. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:389 / 398
页数:10
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