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INIZIO_TESTO_DA_INDICIZZARE

RESEARCH PROGRAM

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Research Units
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Scientific and education field classification
International Patent Classification
  • FIXED CONSTRUCTIONS
    • HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
      • FOUNDATIONS; EXCAVATIONS, EMBANKMENTS (specially adapted for hydraulic engineering E02B); UNDERGROUND OR UNDERWATER STRUCTURE (tunnels, tunnelling, mining E21)
      • HYDRAULIC ENGINEERING (ship-lifting E02C; dredging E02F)
  • 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)
      • WEIGHING (sorting by weighing B07C5/16)
Geographical classification
Bibliografia
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Keywords
OPHIOLITES, DINARIDES, HELLENIDES, SERBIA-MONTENEGRO-GREECE, CRETA, STRUCTURAL ANALYSIS, BIOSTRATIGRAPHY, GEODYNAMICS

STRUCTURAL AND STRATIGRAPHIC STUDIES ON THE DINARIC (SERBIA-MONTENEGRO) HELLENIC (EPIRO-MACEDONIA-TESSALY) AND CRETE. COMPARISON WITH THOSE OF ALBANIDS AND SOUTHERN HELLENIDS.

Università degli Studi di Firenze
Abstract
The proposed research program focuses along three sections of the Dinarid-Hellenic Orogene to study the structural and stratigraphic characters, biostratigraphy, petrology, geochemistry and, possibly, paleomagnetism of the Jurassic-Cretaceous units of a key area in the frame of the Western Tethys evolution.
a)-In the first section, Dinaric, the operative unit (O.U.) of Florence will study the massifs of Varda-Zlatibor, while the Pise O.U. will study those of Ibar-Kopaonik. The attention will be devoted to the sedimentary successions covering the ophiolitic massif, to the peridotitic rocks, to the subophiolitic melange, to the amphibolitic soles and to the relationships between the ophiolitic units and the Pelagonian units of the Drina Ivanjica zone.
b)- In the second section, Hellenic, the O.U. of Florence will study the Pindos, Koziakas, Vourinos e Othrys ophiolitic massifs, while the O.U. of Pise will focus on the Guevgueli and Paikon vardarian units. Here a collection of petrological and biostratigraphic data in the ophiolitic series is necessary to complete previous studies. A special attention will be devoted to the Paikon units.
c)- In the third section, Cretan, the O.U. of Catania will work on the ophiolitic units of Arvi, Vatos and Miamou and on the Pelagonian Asterussia Unit.
The objective are:
- The definition of the number of ophiolitic basins;
- The stratigraphic reconstruction of the ophiolitic successions;
- The >>>

Principal Investigator
Gianfranco Principi Università degli Studi di FIRENZE
Research Objectives
The goals of our project are:
1) the definition of the number and genetic features of the ophiolitic oceanic basements involved in the Dinaric-Hellenic orogenesis with particular focus on the Cretan section.
2) The reconstruction of the originary stratigraphy of the ophiolitic sequences including their sedimentary cover and coeval continental margin sequence.
3) The collection of sufficient structural data to reconstruct the tectonic evolution of the ophiolitic units from the early tectonic phases up their emplacement on the Adriatic continental margin
4) The lithologic classification of the various blocks occurring in the sub-ophiolitic mélange, the understanding of their relations and their provenance areas. The study of the amphibolitic soles intercalated between the ophiolitic units and the mélange will allowed to define the early emplacement process of the ophiolitic units themselves.
5) The understanding of the structural and geometric relations between the ophiolitic and Pelagonian units and their paleogeographic setting.
6) The interpretation of the regional kinematic processes and the large scale geodynamic events to reconstruct a structural model of the studied area.

The final goal will be to propose an evolutionary model of the ophiolitic units of the Dinaric-Hellenic orogenic chains, through a comparison between the studied sections and the available data on the Albanian and Greek units.

Timescale
24 months
National and international background
The ophiolitic sequences formed in an oceanic ridge (MOR) or suprasubduction (SSZ) environment (Crawford et al., 1981; Beccaluva et al., 1983; Pearce and Parkinson, 1993) are deformed during subduction, obduction and continental collision processes.
To reconstruct the evolution of the oceanic lithosphere, until consumption, it is necessary to know its petrological and structural features together with the chronological (biostratigraphic and radiometric) data.
Knowing the ophiolites evolution in the orogens is fundamental to reconstruct the early orogenic phases, which constitute the starting point to understand the successive collisional and post-collisional chain evolution.
Along the Dinaric-Hellenic belt the ophiolites are preserved along two main alignments:
a- the western alignment (Subpelagonian or External Ophiolites Zone), including oceanic MOR type (Jones and Robertson, 1991; Beccaluva et al., 1994; Robertson and Karamata, 1994; Bortolotti et al., 1996, 2002a, 2004a; Robertson and Shallo, 200; Pamic et al., 2002), of Bania (Croatia), Varda-Zlatibor (Serbia), Mirdita (Albania), Pindo-Vourinos, Othrys, Eubea, Argolis and Creta Island (Greece).
b- the eastern (Vardar zone), which includes the ophiolitic rocks (MOR after Robertson and Karamata, 1994 and Trubelja et al., 1995; SSZ after Pamic et al., 2002 and Marroni et al., 2004) and the continental rocks of Bistrica (Croatia), Ibar-Kopaonik (Serbia), Guevgueli (Macedonia-Greece) >>>