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Doctoral thesis
Open access
English

Supercritical density flows on cool-water carbonate ramps : the Lower Pleistocene of Favignana Island, Italy

ContributorsSlootman, Arnoud
Defense date2016-12-15
Abstract

The correct identification of upper flow-regime sedimentary structures in the cool-water carbonate realm is crucial to the development of realistic depositional models that predict the distribution of thick and widespread carbonate sandstones and conglomerates. This disser-tation presents a case study of the cool-water carbonate ramp succession in the Lower Pleistocene of Favignana Island, Sicily. Excellent exposures enable the detailed analysis of sedimentary structures and the reconstruction of upper flow-regime bedform morpho-dynamics, herewith elucidating the sedimentary processes that operate in such depositional environments. It is demonstrated that high-energy, supercritical flows leave a major imprint on the carbonate sediment bodies thus created. The present work contributes to our understanding of the genesis of such bodies by revealing a catastrophic signature in the evolution of cool-water carbonate ramps, which is directly linked to the predictability of the distribution of important reservoir units in the subsurface.

eng
Keywords
  • Carbonates
  • Cool-water
  • Carbonate ramp
  • Supercritical flow
  • Bedforms
  • Tsunami
  • Antidunes
  • Cyclic steps
  • Hydraulic jump
  • Morphodynamics
  • Density flow
  • Favignana
  • Mediterranean
Funding
  • Autre - DIP
Citation (ISO format)
SLOOTMAN, Arnoud. Supercritical density flows on cool-water carbonate ramps : the Lower Pleistocene of Favignana Island, Italy. 2016. doi: 10.13097/archive-ouverte/unige:92759
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