A submerged monolith in the Sicilian Channel (central Mediterranean Sea): Evidence for Mesolithic human activity

Emanuele Lodolo, Zvi Ben-Avraham

Research output: Contribution to journalArticlepeer-review

Abstract

The ancient geography of theMediterranean Basinwas profoundly changed by the increase in sea level following the Last Glacial Maximum. This global event has led to the retreat of the coastlines, especially in lowland areas and shallow shelves, such as the Sicilian Channel. The NW sector of this shelf, known as Adventure Plateau, is studded by isolated shoals mostly composed of Late Miocene carbonate rocks and by some volcanic edifices. These shoals, until at least the Early Holocene, formed an archipelago of several islands separated by stretches of extremely shallow sea. One of these submerged features - the Pantelleria Vecchia Bank - located 60 km south of Sicily, has been extensively surveyed using geophysical and geological methods. It is composed of two main shoals, connected seaward by a rectilinear ridge which encloses an embayment. Herewe present morphological evidence, underwater observations, and results of petrographic analysis of a man-made, 12mlong monolith resting on the sea-floor of the embayment at awater depth of 40 m. It is broken into two parts, and has three regular holes: one at its endwhich passes through frompart to part, the others in two of its sides. Themonolith is composed of calcirudites of Late Pleistocene age, as determined from radiocarbon measurements conducted on several shell fragments extracted from the rock samples. The same age and composition characterize the metre-size blocks forming the rectilinear ridge. The rest of the rocks composing the shoals are mostly Tortonian limestones-sandstones, as revealed by their fossil content. Extrapolating ages from the local sea level curve, we infer that seawater inundated the inner lands at 9350 ± 200 year B.P., the upper limit which can be reasonably taken for the site abandonment. This discovery provides evidence for a significant Mesolithic human activity in the Sicilian Channel region.

Original languageEnglish
Pages (from-to)398-407
Number of pages10
JournalJournal of Archaeological Science: Reports
Volume3
DOIs
StatePublished - 2015

Keywords

  • High-resolution bathymetry
  • Mesolithic human activity
  • Petrographic analysis
  • Radiometric ages
  • Shallow banks
  • Sicilian Channel
  • Submerged monolith
  • Underwater surveys

Fingerprint

Dive into the research topics of 'A submerged monolith in the Sicilian Channel (central Mediterranean Sea): Evidence for Mesolithic human activity'. Together they form a unique fingerprint.

Cite this