Morphologic Variability of two Adjacent Mass-Transport Deposits: Twin Slides, Gela Basin (Sicily Channel) (Abstract/Poster in atti di convegno)

Type
Label
  • Morphologic Variability of two Adjacent Mass-Transport Deposits: Twin Slides, Gela Basin (Sicily Channel) (Abstract/Poster in atti di convegno) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Alternative label
  • Minisini D. (1), Trincardi F. (1), Asioli A. (2), Canu M. (3), Foglini F. (1) (2006)
    Morphologic Variability of two Adjacent Mass-Transport Deposits: Twin Slides, Gela Basin (Sicily Channel)
    in 2006 AGU Fall Meeting, San Francisco, CA (USA)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Minisini D. (1), Trincardi F. (1), Asioli A. (2), Canu M. (3), Foglini F. (1) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto
  • Integrating geophysical, sedimentological, structural and paleontological data, we reconstruct age, size and internal geometry of two adjacent and recent mass-transport deposits (Twin Slides) exposed on the seafloor of Gela Basin (Sicily Channel). Twin Slides are coeval (late-Holocene), and were likely triggered by an earthquake. Originating from the mobilization of Pleistocene slope units, they are only 6 km apart from each other, have their headscarps in similar water depth (230 m), and have a comparable run out distance (ca. 10 km). Both suggest a multistage evolution, but differ in internal organization and morphological expression. The northern slide shows a deposit characterised by pressure ridges in the toe region suggesting a component of plastic deformation, while the southern slide is characterised by large blocks and a reduced thickness of displaced masses. We ascribe the difference in deformation style and resulting morphology to the stratigraphic architecture of the Pleistocene progradational units involved in failure. In the blocky southern slide, the units affected by failure are slightly older (Eemian or pre-Emian) and more consolidated; furthermore, in the area where the headscarp is located these units appear affected by shallow faulting likely resulting in the definition of large blocks. The northern slide affects progradational units of the Last Glacial Maximum in an area where these units are more than 100 m thick and, possibly, underconsolidated. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (1) Istituto di Scienze del Mare, ISMAR-CNR, Via Gobetti 101, Bologna, 40129 Italy (2)Istituto di Geoscienze e Georisorse, IGG-CNR, C.so Garibaldi 37, Padova, 35137 Italy (3) SnamProgetti-ENI, Via Toniolo 1, Fano, 61032 Italy (literal)
Titolo
  • Morphologic Variability of two Adjacent Mass-Transport Deposits: Twin Slides, Gela Basin (Sicily Channel) (literal)
Prodotto di
Autore CNR
Insieme di parole chiave

Incoming links:


Prodotto
Autore CNR di
Insieme di parole chiave di
data.CNR.it