Τομέας Δυναμικής - Τεκτονικής - Εφαρμοσμένης ΓεωλογίαςLibrary of the School of Science
Καθηγητής Δημήτριος Παπανικολάου Επιβλέπων, Επίκουρος Καθηγητής Στυλιανός Λόζιος, Επίκουρος Καθηγητής Δημήτριος Κωστόπουλος
Kinematic and structural analysis in the Feneos area, N. Peloponnese.
Blueschist belts form integral parts of many orogens. In Greece, the external
blueschist belt is represented by the Phyllite – Quartzite unit (PQU; or Arna
The northernmost exposure of this unit is studied in the Feneos area, N.
Peloponnese. An early NE-SW compression resulted in the formation of
NW-trending mesoscopic folds in both the PQU and the overlying Tyros,
contemporaneous with the formation of the regional foliation. A later
NE-shearing, both distributed throughout the pile and localized in
well-developed shear zones, started in the ductile field and continued possibly
in the brittle field under the same stress field. The NE-SW direction for both
the initial compression and the later shearing (possibly related to exhumation)
suggests no relative rotation of the units throughout much of their geological
history. The post-peak metamorphic shearing recorded in the PQU from
Peloponnese and Crete adds to the point of view of significant relative
rotation between the aforementioned areas.
New thermodynamic data revealed the existence of significant metamorphic gap
between the PQU and the overlying Tyros beds in the study area.
Detrital zircon dating from a quartzite (PQU) revealed no influence from the
Variscan orogeny, documented here for the first time in pre-Triassic
(meta)sediments from Crete/Peloponnese.
Feneos, Structural analysis, Shear zones, Zircon dating, Blueschists
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