23-25 September 2013
GEOMAR East shore
Europe/Berlin timezone
Home > Timetable > Session details > Contribution details
PDF | XML | iCal

Submarine mass-movements along the slopes of the active Ionian continental margins and their consequences for marine geohazards (Mediterranean Sea)

Presented by Dr. Silvia CERAMICOLA on 23 Sep 2013 from 10:00 to 10:15
Type: Oral presentation, full-paper
Track: Oral presentations

Content

The Ionian margins of Calabria and Apulia (IMCA) have been affected by mass movements of varying style, scale and age. Here we present examples of seabed and subsurface features identified along more than 400km of the IMCA from multibeam seabed imagery and subbottom profiles acquired by OGS since 2005. Four different types of mass movement phenomena are recognized with expression at seabed and in the shallow subsurface: 1) mass transport complexes (MTCs) within intra-slope basins, 2) isolated slide scars along open slopes (ISS), 3) slope-parallel sediment undulations (SPSU) recording block-rotations linked to fluid migration, and 4) headwall and sidewall scarps in submarine canyons (HSC). Preliminary analyses of sedimentary processes suggest that both open-slope failures capable of triggering tsunamis and retrogression of canyon headwalls within 1-3km of the Calabrian coast represent potential geohazards for coastal populations and offshore infrastructures.

Place

Location: GEOMAR East shore
Address: Wischhofstr. 1-3 / D-24148 Kiel
Room: Lecture Hall Geb. 8A

Primary authors

More

Co-authors

  • Dr. Daniel PRAEG OGS (Istituto Nazionale di Oceanografia e di Geofisica Sperimentale)
  • Marianne COSTE OGS - Instituto Nazionale di Oceanografia e di Geofisica Sperimentale, Borgo Grotta Gigante 42c, 34010 Trieste
  • Edy FORLIN OGS - Instituto Nazionale di Oceanografia e di Geofisica Sperimentale, Borgo Grotta Gigante 42c, 34010 Trieste
  • Andrea COVA OGS - Instituto Nazionale di Oceanografia e di Geofisica Sperimentale, Borgo Grotta Gigante 42c, 34010 Trieste
More