Sur la signification et l'extension des "massifs cristallins externes" en Peloponnese meridional et dans l'Arc egeen

Bizon, G.; Bonneau, M.; Leboulenger, P.; Matesco, S.; Thiébault, F.

doi:10.2113/gssgfbull.s7-xviii.2.337

Cited by 18 publications

(15 citation statements)

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“…The PLK series can be traced further east in Kasos and Rhodes (Lindos unit) islands (Bonneau 1984). Comparisons with sequences in a similar tectonic position in Peloponnese and mainland Greece, as well as in the western Taurides (Kizilca zone; Poisson and Sarp 1977), suggest correlation with the Ionian zone (Bonneau 1973;Aubouin et al 1976;Bizon et al 1976). Others (e.g.…”

Section: Geology Of the Southeastern Hellenidesmentioning

confidence: 91%

Kinematics and strain partitioning in the southeast Hellenides (Greece)

Κοκκάλας

Doutsos

2004

Geological Journal

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New kinematic and structural data from the tectonic windows of eastern Crete and the Dodecanese Islands combined with strain and quartz fabric analysis have enabled us to determine a detailed structural evolution of the region and to present a plate tectonic scenario for the southeast Hellenides.During the Early Mesozoic, the southeastern part of Apulia was separated from North Africa and the adjacent microplates by WNW-trending rift zones and NE-trending transfer faults. Displacement along the transfer faults has locally reoriented these rift zones into an ENE-WSW direction. Finite strain and quartz fabric asymmetry data indicate that in Late Cenozoic time, NNWdirected nappe movements caused a nearly coaxial deformation along the ENE-WSW trending rift segments and non coaxial top-to-the-southeast shearing along the WNW-trending rift segments, as well as along the pre-existing NE-trending transfer faults. Tectonic style along the margin varies in response to the obliquity of the principal shortening direction with respect to the margin. These variations could be due to the pre-convergence geometry of the southern margin of Eurasia and to local strain partitioning effects.Furthermore, a tectonic model is presented in which syncompressional uplift and vertical buoyancy of the subducted crustal slice caused the rapid exhumation of metamorphic units in the south Hellenides.

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Section: Geology Of the Southeastern Hellenidesmentioning

confidence: 91%

Kinematics and strain partitioning in the southeast Hellenides (Greece)

Κοκκάλας

Doutsos

2004

Geological Journal

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“…In Crete, recrystallized pelagic foraminifera in the uppermost part of the sequence give Upper Eocene to lowermost Oligocene ages (Bizon et al 1976). Re-worked ?rudists are known from Crete (Renz 1932;Wachendorf et al 1980) and from Lindos, Rhodes where they are associated with Cenomanian benthic foraminifera (Mutti et al 1970).…”

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confidence: 99%

Correlation of the Hellenide nappes in the south-east Aegean and their tectonic reconstruction

Bonneau

1984

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Summary The central Aegean nappe pile can be readily related to that of the mainland Hellenides and has the advantage that the deeper levels are well displayed, particularly in the Cyclades. The following units can be distinguished, from base to top: (1) The para-autochtonous Ida or Talea Ori Sequence , recognized in Crete, Kassos, Rhodes (Lindos sequence) and Amorgos is, in part, a neritic carbonate platform sequence. It can be correlated with the Ionian-Preapulian autochthon of the mainland and most probably with the Menderes sequence of western Anatolia, there exposed in a tectonic window. (2) The major Tripolitza Nappe , a carbonate platform sequence, with the Phyllite Nappe at its base, is well represented in the outer arc as well as in Astypaleia and Santorini. (3) The Pindos and Arvi Nappes of Crete, Rhodes and Tilos are the remnants of an ocean basin active from Upper Triassic to Late Cretaceous times. (4) The Cycladic Blueschist Unit exposed on Syros, Siphnos, Naxos and other islands, occupies a tectonic position similar to the Pindos Nappe. It is interpreted as the subducted margin of the European plate, while the Pindos Nappe, the abyssal plain of the Apulian plate, was obducted just before continental collision in the Late Eocene-Oligocene. (5) The Asteroussia Nappe , composed of high-grade metamorphic rocks yielding cooling ages around 75 Ma, is present in Crete and in the Cycladic islands of Syros, Nikouria, Denoussa and Keros. It is interpreted as the remnants of a Pelagonian basement nappe, eroded in Miocene times. In the external or outer belt it has been thrust on to the unmetamorphosed Pindos Nappe but in the Cyclades it rests on the Cycladic Blueschist unit.

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“…The Arna Unit lies structurally above the Tertiary carbonate beds of the Plattenkalk unit (Fytrolakis 1972;Bizon & Thiebault 1974) and lies beneath the Mesozoic platform carbonates of the Tripolitza Nappe.…”

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confidence: 99%

The three metamorphic belts of the Hellenides: a review and a kinematic interpretation

Papanikolaou

1984

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New results obtained in the three metamorphic belts of the Hellenides suggest that each belt has a different structure, geotectonic setting and evolution. The external metamorphic belt of Peloponnesus-Crete has probably resulted from nappe movement in the vicinity of an evolving island arc system. The blueschists occurring within this external belt are allochthonous and have been transported with other nappes over the external carbonate platform of the Pre-Apulian-Plattenkalk-Ionian-Tripolitza-Almyropotamos Units. This implies that there was only one true blueschist domain, initiated in the Cycladic area during ?Early Eocene. The kinematic interpretation is based on the distinction of a-and b-structures and on the nature of the shear zones between the different domains, especially that between the metamorphic Hellenides below and the non-metamorphic Hellenides above. The existence of the probably Lower Palaeozoic meta-sedimentary sequence of Kastoria in the northern Pelagonian zone indicates that the overlying, ophiolite-bearing Almopias unit has been derived from within the Hercynian domain. The Kastoria sedimentary sequence, the ophiolites of Vertiskos and the carbonate platform of Pangeon are considered to be most likely elements of a probable Hercynian orogeny.

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Sur la signification et l'extension des "massifs cristallins externes" en Peloponnese meridional et dans l'Arc egeen

Cited by 18 publications

References 0 publications

Kinematics and strain partitioning in the southeast Hellenides (Greece)

Kinematics and strain partitioning in the southeast Hellenides (Greece)

Correlation of the Hellenide nappes in the south-east Aegean and their tectonic reconstruction

The three metamorphic belts of the Hellenides: a review and a kinematic interpretation

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