Quaternary marine and continental unconformity-bounded stratigraphic units of the NW Sicily coastal belt

In the coastal sector of NW Sicily, the regional correlation of relevant unconformities recognised within the Quaternary sedimentary successions allowed the mapping of seven unconformity-bounded stratigraphic units (UBSUs). The regional unconformities are marine or subaerial erosional surfaces, as w...

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Bibliographic Details
Published in:Journal of maps 2017-11, Vol.13 (2), p.425-437
Main Authors: Agate, Mauro, Basilone, Luca, Di Maggio, Cipriano, Contino, Antonio, Pierini, Salvatore, Catalano, Raimondo
Format: Article
Language:English
Subjects:
Calcarenite
Carbonates
Cartography
climate
Coastal processes
Deposits
Environmental changes
Geology
Karst
Landslides
Lithology
NW Sicily
Oscillations
Plate tectonics
Quaternary
quaternary continental and marine deposits
Rivers
Sandstone
sea-level changes
Soils
Stratigraphy
Surface water
Tectonics
Unconformity
Unconformity-bounded stratigraphic units
Wind erosion
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Summary:In the coastal sector of NW Sicily, the regional correlation of relevant unconformities recognised within the Quaternary sedimentary successions allowed the mapping of seven unconformity-bounded stratigraphic units (UBSUs). The regional unconformities are marine or subaerial erosional surfaces, as well as non-depositional surfaces, locally marked by paleosoils. The erosional surfaces were produced from marine abrasion, surface water overland/concentrated flow, river erosion, karst solution, mass movement, or wind erosion. The main lithofacies of the Quaternary UBSUs consist of: (a) marine and coastal bioclastic calcarenites, (b) aeolian sandstones, (c) river deposits, (d) colluvial deposits, (e) talus slope deposits, (f) landslide deposits, and (g) chemical carbonates (travertines and speleothems). Quaternary environmental changes, due to tectonics, climate, and sea-level oscillations, are the causes that favoured the development of erosion/deposition processes responsible for the genesis of unconformities and deposits. As a result, through the UBSU map of the NW Sicilian coastal belt, it is possible to: (i) recognise stratigraphic units controlled by tectonic, climatic, and environmental processes (and their interplay) and (ii) detect Quaternary sedimentary evolution.
ISSN:1744-5647
1744-5647
DOI:10.1080/17445647.2017.1314229