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INIZIO_TESTO_DA_INDICIZZARE

RESEARCH PROGRAM

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Scientific and education field classification
International Patent Classification
  • FIXED CONSTRUCTIONS
    • EARTH DRILLING; MINING
      • EARTH DRILLING, e.g. DEEP DRILLING (mining, quarrying E21C; making shafts, driving galleries or tunnels E21D); OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
  • PHYSICS
    • MEASURING (counting G06M); TESTING
      • GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS (detecting or locating foreign bodies for diagnostic, surgical or person-identification purposes A61B; means for indicating the location of accidentally buried, e.g. snow-buried persons A63B29/02; investigating or analysing earth materials by determining their chemical or physical properties G01N; measuring electric or magnetic variables in general, other than direction or magnitude of the earth\'s field G01R; electronic or nuclear magnetic resonance arrangements G01R33/20; radar, sonar or analogous methods in general, detecting masses or objects involving these methods G01S)
Geographical classification
Bibliografia
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Keywords
CLASTIC SEDIMENTATION, CENOZOICO, COMPOSITION AND PROVENANCE, BASIN ANALYSIS, CIRCUM-MEDITERRANEAN OROGENIC BELTS, PALEOGEOGRAPHIC RECONSTRUCTIONS, PALEOTECTONIC RECONSTRUCTIONS, CENTRAL AND WESTERN MEDITERRANEAN

THE CENOZOIC CLASTIC SEDIMENTATION WITHIN THE CIRCUM-MEDITERRANEAN OROGENIC BELTS: IMPLICATION FOR PALEOGEOGRAPHIC AND PALEOTECTONIC EVOLUTION

Università della Calabria
Abstract
Stratigraphic and structural relations of syntectonic sedimentary sequences associated with circum-Mediterranean orogeny provide valuable information about the style and timing of deformation related to tectonic denudation. Tertiary turbiditic carbonate and siliciclastic strata, represent the stratigraphic sequences of many ocean-derived tectonic units of the western-central Mediterranean orogenic systems, from the Betic Cordilleras to the Apennines. Turbidite sedimentation within Tertiary remnant ocean basins of the Maghrebian Flysch Basin and the Lucanian Ocean, as such such the following early-to-late Miocene turbidite strata of the foreland basin systems of the circum-Mediterranean orogeny are the key subject of this project proposal.
This project focus on clastic sedimentation developed during the sequential history of large portions of the circum-Mediterranean orogeny and concern results of regional structural, stratigraphic, sedimentologic, geochemical and provenance relationships that constraint the post-Cretaceous paleogeographic and paleotectonic history of portions of the western and central Mediterranean region from Betic Cordillera to the Apennines.
The key stratigraphic sequences of the circum-Mediterranean orogenic systems will be described in the present proposal using new data and interpretations, or re-interpreting previous published data. The entire bio-and-litho-stratigraphic, compositional, geochemical and structural data set will be >>>

Principal Investigator
Salvatore Critelli Università della CALABRIA
Research Objectives
Previous work provided detailed magmatological and geodynamic evidence of a subduction of oceanic crust in the central-western Mediterranean during late Oligocene-to-early Miocene (Beccaluva et al., 1989; Dewey et al., 1989; Serri et al., 2001). These data are in accord with the presence of an inferred continental microplate, since the Jurassic, between Europe and Africa within the western Tethys (Doglioni,1992; Guerrera et al., 1993; Bonardi et al., 2001; Michard et al., 2002). This microcontinent, named as Mesomediterranean Microplate, subdivided the oceanic basin in a northern oceanic basin (the Nevadofilabride-Ligurian-Piemontese Ocean) and a southern oceanic basin (the Lucanian Ocean-Maghrebian Flysch Basin). The sedimentary fill of the southern oceanic basin includes a Middle-Upper Jurassic-to-lower Miocene continuous stratigraphic section, involved in an Africa/Adria vergence during the early Miocene accretionary processes. The accretionary processes and the stratigraphic signals clearly distinguish the tectonostratigraphic units of the southern Ocean Basin from that derived from the Nevadofilabride-Ligurian-Piemontese Oceanic Basin. In fact, the latter are characterised by stratigraphic sections of which the youngest strata are Eocene in age, involved in an Europe vergence during Late Cretaceous-Eocene accretionary processes.
The stratigraphic successions related to the southern oceanic basin consist of a magmatic substratum, radiolarites and siliceous shales >>>

Timescale
24 months
National and international background
The Maghrebian Flysch Basin (MFB) represents one of the most important paleogeographic domains of the Betic Cordilleras and Maghrebian Chain, this latter extending from the Rif to the Sicily. The units originated from this basin are sandwiched between the metamorphic and magmatic terrains of the Internal Domains and the sedimentary terrains of the Betic, Rifian and Sicilian External Domains.
This domain has been identified as from sixtie's by French geologists in Northern Africa and in the Betic Cordillera (Didon,1960;1969;Durand Delga,1969;1980;Didon et al., 1973; Bouillin,1977; Bouillin et al.,1986), and it has been considered the westward prosecution of the Ligurian-Piemontese Basin. This basin, located on a zone of transform faults or on markedly thinned continental crust(Wildi,1983;Bouillin et al.,1986)with scanty oceanization areas, should separated, starting from the Jurassic, the European plate from the African plate. The MFB should be affected by the deformation already from the middle Eocene. In the Gibraltar Arc, the MFB successions widely crop out in Western Betic Cordilleras (Campo de Gibraltar and Corredor de Colmenar)and,in the Rifian Maghrebids, from Tangier to Al Hoceima. Terrains of the MFB have been recognised also in the Tellian Maghrebids,from the Oued Chelif to Bizerte,and in the Sicilian Maghrebids in the Madonie and Nebrodi Mountains.
Later on, data not in agreement with interpretations of the French geologists have been reported in >>>