UPPER CRETACEOUS TRANSGRESSION OVER THE OPHIOLITES OF NORTHERN PINDOS

PDF
Published: Jul 23, 2018
DOI: https://doi.org/10.12681/bgsg.16820
Ι. Αργυριάδης
Abstract

At the ophiolithic overthrusted masses of Northern Pindos, east of Katara, outcrops of limestones are observed. Until now these outcrops are interpreted by tectonic inclusions inside the secondary tectonic contacts. Detailed analysis of these limestones showed that they are remainings of transgressions their age determined by the microfauna as upper Campanian - early Maastrichian. The limestone series ends upwards in a karstic surface supporting doleritic lava flows with essential thickness. In place Tragopetra we can observe that these lavas clearly intrude in the caves of the paleokarst. At the same section (Tragopetra), over this lava formation, the basic conglomerate (Auversian) of the mesohellenic sediments is found. Transgression of this age whas unknown until now in Greece, but is well known in South Anatolia and Near East. An important outcome of our research is that there is no ocean trench before the 806 overthrust but land with karstification of the limestones is emerged instead. The Pindos ophiolites overthrust is related to recent land creation and developed under epiglyptic conditions. Nature reality often differs to any models humans may imaginate!

Article Details
  • Section
  • Stratigraphy
Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Authors who publish with this journal agree to the following terms:

Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution Non-Commercial License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g. post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal. Authors are permitted and encouraged to post their work online (preferably in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.

Downloads
Download data is not yet available.
References
Argyriadis I. (1974) - Sur l'orogenèse mésogéenne des temps crétacés. Revue de Géogr. Phys. et Géol. Dyn., vol. XVI, fase. 1, p. 23-60.
Argyriadis I. La tectonique de la Basse Provence : proposition d'une interprétation nouvelle. CR. Acad. Sc. Paris, 2000, Ma, vol. 331 n°12, p. 797 - 802.
Argyriadis I., Graciansky P.C. (de), Marcoux J., Ricou L.E., 1980. The opening of the Mesozoic Tethys between Eurasia and Arabia-Africa. 26e CGI, Coll. 5, Eds BRGM, p. 199-214.
Brunn JH. 1952. Les éruptions ophiolitiques dans le NW de la Grèce et leurs rapports avec l'oro genèse. 19ème congrès géol. Int. 17, 19-27.
Brunn JH. 1956. Contribution à l'étude géologique du Pinde septentrional et de la Macédoine occidentale. Ann. Géol. Pays Hellen, vol. 7, 410p.
Dercourt J., 1970. L'expansion océanique actuelle et fossile : ses implications géotectoniques. Bull. Soc. Géol. Fr., (7), 12, p. 261-317.
Jones G., Robertson Α., Cann J. 1990. Genesis and emplacement of the supra-subduction zone Pindos ophiolite, northwestern Greece. In : Tj. Peters et al., eds., Ophiolite genesis and evolution of the oceanic lithosphère. Ministry of Petroleum and Minerals, Oman, p. 771-799.
Kober L., 1931. Das alpine Europa. Borntraeger, Berlin.
Kober L., 1952. Leitlinien der Tektonik Jugoslaviens. Serbische Akad. D. Wiss. Sonderausgabe, 189, Geol. Institut, η. 3.
Koumantakis J., Matarangas D., 1980. Geological map of Greece, Panayia sheet.
Laubscher Η.P., Bernoulli D., 1977. Mediterranean and Tethys. In : Nairn et al. Eds., The Ocean basins and margins. IV, Mediterranean Plenum Pubi., New York.Jackson E., Green H., Moores E., 1980. The Vourinos ophiolite, Greece : cyclic units of lineated cumulates overlying harzburgite tectonite. Geol. Soc. Amer. Bull., 86, p. 390-398.
Mavridis Α., Skoyrtsis-Koroneou V., Tsaila-Monopoli St., 1977. Contribution to the geology of the sub-Pelagonian zone (Vourinos area, West-Macedonia). VI coll. Aegean Region, Athens 1977, v. I, p. 175-195.
Parrot J.F., 1977. Ophiolites du Nord-Ouest syrien et évolution de la croûte océanique téthysienne au cours du mésozoïque. Tectonophysics, 41 (1977), p. 251-268.
Philippson Α., 1890. Bericht über eine Reise durch Nord- und Mittel-Griechenland. Zeitschr. D. Ges. F. Erdk. 25, p. 331-416.
Reinhardt M., 1911. Sur l'existence de la nappe des roches ophiolitiques en Macédoine. OR. de Séances de l'Institut géologique de Roumanie, Bucarest, p. 19.
Renz C, 1940. Die Tektonik der griechischen Gebirge. Mém. Acad. Ath. 8, p. 1-171.
Ricou L.E., 1971. Le croissant ophiolitique péri-arabe, une ceinture de nappes mises en place au Crétacé supérieur. Rev. Géogr. Phys. Géol. dyn. (2), vol. XIII, fase. 4, p. 327-350.
Ricou L.E., Argyriadis I., Marcoux J., 1975. L'axe calcaire du Taurus, un aligne.ent de fenêtres arabo-africaines des nappes radiolaritiques, ophiolitiques et ,éta,orphiques. Bull. soc. géol. Fr., (7), XVII, 1975, n° 6, p. 1024- 1044.