Geomorfologia costiera e subacquea e considerazioni paleoclimatiche sul settore compreso tra S. Maria Navarrese e Punta Goloritze (Golfo di Orosei, Sardegna)

F. Antonioli, L. Ferranti

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A coastal and underwater geomorphological study has been carried out between S. Maria Navarrese and Punta Goloritze on the southern sector of the Gulf of Orosei (Eastern Sardinia). The underwater sector was surveyed by means of SCUBA-diving equipment down to a depth of -40 m. In this sector we recognized evidence of a stillstand at -10/12 m, that we correlated to a stage older than the last glacial, and supposedly younger than the 4e; submerged continental deposits, mostly formed by eolianite and coarser gravel intercalations, were extensively mapped. The eolianites are mainly formed by calcareous sands with subhorizontal to cross-stratification, and are continuous with the continental deposits of upper Pleistocene age outcropping along the coastal cliff. Submerged speleothems sampled down to 10 m depth have a radiocarbon age of about 23-22 ka BP; indicating a speleothem growth during the last glacial peak, when in more continental and high-latitude settings glacial conditions halted the water supply and speleothem formation. -from English summary
Original languageItalian
Pages (from-to)65 - 89
Number of pages25
JournalGiornale di Geologia
Issue number2
Publication statusPublished - 1992
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Oceanography
  • Geology

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