Distribution of elements between coexisting phengite and chlorite from low grade rocks from Skiros Island, Greece

Baltatzis, E.

doi:10.1007/bf01161819

Cited by 3 publications

(2 citation statements)

References 17 publications

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“…It is remarkable that the underlying LMU of Skyros is composed of pelagic meta-sediments with submarine basic volcanism, resembling pelagic/oceanic Maliac affinities [59]. It is characterized by low grade greenschist assemblages such as albite + white mica + chlorite + epidote + quartz + calcite + Fe-oxides [60]. In addition, the absence of garnet, biotite, and amphibole, which are present in the UMU of Skyros, shows the significant difference in the metamorphic grade between the two metamorphic units of Skyros.…”

Section: Tectonic Implicationsmentioning

confidence: 99%

Late Cretaceous Tectono-Metamorphic Events in the Skyros Upper Metamorphic Unit (Olympus Mountain), Aegean Sea, Greece

Boundi,

Papanikolaou,

Bosio

et al. 2024

Geosciences

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Late Cretaceous metamorphic events are known in Crete and the Cyclades from klippen above the External Hellenides. This work extends their occurrence to the North Aegean area within the tectonic units of the Internal Hellenides. New 40Ar/39Ar white mica ages from garnet-bearing micaschists of the Upper Metamorphic Unit of Skyros Island, cropping out in the Skyrian Olympus Mountain, document a Late Cretaceous tectono-metamorphic evolution. Several mica generations have been distinguished using electron probe microanalyses and were dated using the 40Ar/39Ar method: a relict mica older than 96 Ma, followed by a foliation-forming mica of about 88–84 Ma and alteration phases ≤ 68 Ma were recognized. This Cretaceous tectono-metamorphic evolution falls between the closure of the internal Axios/Vardar oceanic basin in the Late Jurassic–Early Cretaceous, and the closure of the external Pindos–Cyclades oceanic basin in the Early Cenozoic. The position of the Upper Metamorphic Unit of Skyros was probably within the evolving Hellenic volcanic/magmatic arc during the continuous subduction of the African plate beneath the European plate. The present tectonic position of the units bearing the Late Cretaceous metamorphic event is the result of the Cenozoic tectonic emplacement onto the more external units across the Hellenides from the Pelagonian to the Pindos–Cyclades domain.

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Section: Tectonic Implicationsmentioning

confidence: 99%

Late Cretaceous Tectono-Metamorphic Events in the Skyros Upper Metamorphic Unit (Olympus Mountain), Aegean Sea, Greece

Boundi,

Papanikolaou,

Bosio

et al. 2024

Geosciences

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“…Ασβεστιτικοί σχιστόλιθοι, σερικιτικοί φυλλίτες και κυανοσχιστόλιθοι με μεταγραουβάκες, λατυποπαγή και παρεμβολές μεταηφαιστιτών (Melentis 1973, Baltatzis 1988. Καταλαμβάνουν την πε ριοχή δυτικά της αρχαιολογικής θέσης.…”

Section: κλίμα -γεωλογία -τεκτονικήunclassified

Geomorphic Evolution of the Palamari Bay (Northeastern Skyros Island) During Late Holocene

et al. 2018

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Palamari bay is loceted on the northeastern coast of Skyros island (Sporades islands, Aegean sea). The area is of fundamental archaeological interest because of a prehistoric archaeological site, located at the northern part of the bay. In order to investigate the geomorphic evolution of the broader area a detailed geomorphological mapping of the coastal and submarine area of the bay at a scale 1:5000 was carried out. Additionally the stratigraphy of the late Holocene sediments was studied and micropaleontological and palynological study of collected samples from the deposits of the coastal alluvial plain as well as radiocarbon dating of selected layers rich in organic material were done. The main morphological features of the coastal zone are two beachrock formations with the first one extending along the coastline reaching a depth of-1.70 m and the second one occupying the southern part of the bay lying between -1.90 and -2.90 m below sea level. Microfaunal and palynological analysis of collected samples identified two main sedimentary sequences. The uppermost sedimentary unit represents a terrestrial depositional environment dominated by aeolian wellsorted sands and fluvial sediments. The underlying sequence showed a lagoonal depositional environment, implying a protected lagoon connected to the sea, which was periodically supplied with fresh water. This lagoon existed between 3700 years BP and 700 years BP as radiocarbon dating showed. The existence of this lagoon after that period is possible.

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Sulla variability, compositiva dell’ amiche nellöambito di uno stesso affioramento di metapeliti di basso grado: un esempio. 1: Le biotiti

Peruzzo

Sassi

1991

Rend. Fis. Acc. Lincei

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Distribution of elements between coexisting phengite and chlorite from low grade rocks from Skiros Island, Greece

Cited by 3 publications

References 17 publications

Late Cretaceous Tectono-Metamorphic Events in the Skyros Upper Metamorphic Unit (Olympus Mountain), Aegean Sea, Greece

Late Cretaceous Tectono-Metamorphic Events in the Skyros Upper Metamorphic Unit (Olympus Mountain), Aegean Sea, Greece

Geomorphic Evolution of the Palamari Bay (Northeastern Skyros Island) During Late Holocene

Sulla variability, compositiva dell’ amiche nellöambito di uno stesso affioramento di metapeliti di basso grado: un esempio. 1: Le biotiti

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