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INIZIO_TESTO_DA_INDICIZZARE

RESEARCH PROGRAM

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Scientific and education field classification
International Patent Classification
  • FIXED CONSTRUCTIONS
  • PERFORMING OPERATIONS; TRANSPORTING
    • HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
      • MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES ([N: manipulators specially adapted for use in surgery A61B19/00M; manipulators used in cleaning hollow articles B08B9/04]; manipulators associated with rolling mills B21B39/20; manipulators associated with forging machines B21J13/10; [N: manipulators associated with picking-up and placing mechanisms B23P19/00B5]; means for holding wheels or parts thereof B60B30/00; [N: vehicles with ground-engaging propulsion means, e.g. walking members B62D57/02, B62D57/032; devices for picking-up and depositing articles or materials between conveyers B65G47/90, B65G47/91; manipulators with gripping or holding means for transferring packages B65H67/06E2]; cranes B66C; [N: manipulators used in the protection or supervision of pipe-line installations F17D5/00; walking equipment adapted for nuclear steam-generators F22B37/00C3]; manipulators specially adapted for, or associated with, nuclear reactors G21C)
  • 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
PLATE TECTONICS, CENTRAL MEDITERRANEAN, PALEOTECTONICS RECOSTRUCTION, ADRIA PLATE, IONIAN BASIN, GEOHYSTORY ANALYSIS, CARBONATE PLATFORMS, STRATIGRAPHY, PALEOGEOGRAPHY

ADRIA: promontory of African Plate or microplate?

Università degli Studi di Camerino
Abstract
The margins of Mesozoic basins of the central Mediterranean region will be studied from the stratigraphic, structural, kinematic, and paleoenvironmental point of view in order to constrain the motion of Adria in the context of the kinematic evolution of the Mediterranean region.

Problems about the determination of the motion of Adria arise from the existence of two contrasting dataset. First, paleomagnetic data substantially support the idea that the motion of Adria was coherent with that of Africa (Channell et al., 1979; Channell et al., 1996; Muttoni et al., 2001; Besse & Courtillot, 2002). On the other hand, important geological and geophysical evidences require that Adria was subject to independent motion relative to Africa during part of the Mesozoic. The most relevant evidences are: 1) the existence of the oceanic Ionian basin between Adria and Africa, and 2) the overlap between Adria and Eurasia that results when the first is considered as a simple promontory of Africa in the context of the fit of Pangaea at 200 Ma (Torsvik & Van der Voo, 2002; Wortmann et al., 2001). Although a solution to the problem of determining the motion of Adria is crucial for the reconstruction of the tectonic history of the Alpine-Mediterranean region, the problem appears to be not adequately constrained.

The present research project suggests a new approach, which combines quantitative geologic analysis with kinematic modelling. A consistency >>>

Principal Investigator
Eugenio Turco Università degli Studi di CAMERINO
Research Objectives
The main objective of the proposed research project is to find precise constraints to the motion of Adria in the context of the kinematic evolution of the Mediterranean region. In spite of the large amount of paleomagnetic data supporting the idea that the motion of Adria was coherent with the Africa one (Channell et al., 1979; Channell et al., 1996; Muttoni et al., 2001; Besse & Courtillot, 2002), important geological and geophysical evidences require that Adria was subject to independent motion relative to Africa during part of the Mesozoic. The most relevant evidences are:

1. The existence of an intervening basin (the Ionian basin) between Adria and Africa, which can be considered to be floored by a remnant of Mesozoic oceanic crust, as suggested by its geophysical characteristics: depth, crustal thickness, heat flow, and gravity anomalies (Biju-Duval et al., 1977; Finetti, 1985; Catalano et al., 2001);

2. An important overlap between Adria and Eurasia, in the context of a classic Pangaea A fit (e.g., Torsvik & van der Voo, 2002), results when we consider Adria as a fixed promontory of Africa (Torsvik & Van der Voo, 2002; Wortmann et al., 2001).

In general, if we focus on the relative motion between Adria and Africa, paleomagnetic data cannot be considered as strong constraints, mainly because of their low resolution (typically 10° of uncertainty in paleolatitude). Conversely, plate tectonic >>>

Timescale
24 months
National and international background
INTRODUCTION
Adria and Apulia are often considered as synonyms to indicate a region floored by continental crust and connecting the African continental block with the European plate in the central Mediterranean. The crust of Adria, which is 30-35 km thick, is covered by an important carbonatic succession, characterized by platform and basin facies that were deposited from the Permian to the Paleogene. Starting from the Oligocene the Adriatic domain was encompassed by flexural forearc basins, where several km of syn-orogenic sediments were deposited. The stable and undeformed parts of this region are represented by the present Adriatic Sea, by the easternmost Po Basin, and by the outcrops of Apulia, Gargano, Istria and part of the South Alpine domain. The Adriatic region, in the context of the Mediterranean region, is characterized by high lithospheric thickness and low heat flow (Cavazza et al., 2004). Its present margins were strongly deformed by four different orogenic events: the Alpine, Dinaride, Hellenide and Apenninic orogenic phases. The only undeformed part of the Adriatic margin is the Apulian Escarpment, which marks the transition to the Ionian basin.

During the last three decades several authors debated the contrasting hypotheses that Adria represented a promontory of the African plate during the last 200 Ma or an independent microplate (Channell et al., 1979; Lowrie, 1986; Borsellini, 2002; Wortmann et al., 2001; Anderson, 1987; Platt et >>>