PRELIMINARY GEOCHEMICAL AND SEDIMENTOLOGICAL ANALYSIS IN NW CORFU: THE MIOCENE SEDIMENTS IN AGIOS GEORGIOS PAGON

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Published: Jul 27, 2016
DOI: https://doi.org/10.12681/bgsg.11741
Keywords:
TOC CaCO3 Corfu Ionian Sea grain size analysis Hellenic FTB
P. Tserolas
Department of Geology, University of Patras
C. Mpotziolis
Department of Geology, University of Patras
A. Maravelis
School of Environmental and Life Sciences, University of Newcastle
A. Zelilidis
Department of Geology, University of Patras
Abstract

A total of 80 samples of the Miocene deposits in Agios Georgios Pagon (NW Corfu) were selected and studied in regard of their geochemical and sedimentological characteristics. Organic content and calcium carbonate measurements were used and combined to investigate the depositional conditions and preliminary source rock potential. TOC analysis presented significant values ranging up to ~3% of organic carbon, with an average of 0,7%, and thus providing a promising basis for further assessment of their source rock potential. Calcium Carbonate measurements presented an average of ~27%. Fluctuations, correlative trends and the combined use of sieve analysis provide insights and alterations in the depositional conditions. The studied strata are part of an ongoing investigation throughout the Miocene to Pliocene sediment accumulations in Corfu, from Lefkimmi in the SW part to Agios Stefanos to the NW. The depositional conditions and source rock potential should provide new insights in understanding the geotectonic processes and basin development in the western margin of the Hellenic Fold and Thrust Belt.

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  • Marine Geology and Oceanography
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References
Folk, R.L., 1968. Petrology of Sedimentary Rocks. Hemphill Publishing Co, Austin, Texas, 170 pp.
Folk, R.L. and Ward, W.C., 1957. Brazos river bar: a study of significante of grain size parameters,
J. Sediment. Petrol., 27, 3-26.
Gaudette, H.E., Flight, E.R., Toner, L. and Folger, D.W., 1974. An inexpensive titration method for
the determination of organic carbon in recent sediments, Journal of Sedimentary Petrology,
, 249-253.
IGME, 1971. Sheet Corfu, scale 1:50.000.
Konstantopoulos, P., Maravelis, A. and Zelilidis, A., 2013. The implication of transfer faults in
foreland basin evolution: Application on Pindos Foreland Basin, West Peloponneus, Greece,
Terra Nova, 25, 323- 336.
Makrodimitras, G., Stoykova, K., Vakalas, I. and Zelilidis, A., 2010. Age determination and
paleogeographic reconstruction of Diapontia islands, NW Greece,based on calcareous
nannofossils. Bullettin of the Geological Society of Greece, 2010, Proceedings of the 12th
International Congress, Patras, May, 2010, 675-684.
Maravelis, A., Makrodimitras, G. and Zelilidis, A., 2012. Hydrocarbon prospectivity in Western
Greece, Oil and Gas European journal, 38, 84-89.
Maravelis, A., Makrodimitras, G., Pasadakis, N. and Zelilidis, A., 2014a. Stratigraphic evolution
and source rock potential of a Lower Oligocene-Lower/Middle Miocene continental slope
system, Greek Fold and Thrust Belt, Ionian Sea, Northwestern Greece. Geological Magazine,
, 349-413.
Maravelis, A., Koukounya, A., Tserolas, P., Pasadakis, N. and Zelilidis, A., 2014b. Geochemistry
of Upper Miocene–Lower Pliocene source rocks in the Hellenic Fold and Thrust Belt,
Zakynthos Island, Ionian Sea, western Greece, Marine and Petroleum Geology, 66, 217-230.
Monopolis, D. and Bruneton, A., 1982. Ionian Sea (Western Greece): Its structural outline deduced
from drilling and geophysical data, Tectonophysics, 83, 227-242.
Nioti, D., Maravelis, A., Tserolas, P. and Zelilidis, A., 2013. TOC and CaCO3 content in oligocene
shelf deposits on Lemnos island and their relation with depositional conditions. Bulletin of
the Geological Society of Greece, vol. XLVII 2013. Proceedings of the 13th International
Congress, Chania, Sept. 2013.
Passega, R., 1964. Grain size representation by C-M patterns as a geologic tool, Jour.Sed. Petrol.,
Tulsa Ok., 34(4), 830-847.
Schilling, V., Stradner, A., Cita, H. and Gaetani, M., 1976. Stratigraphic investigations on the Late
Neogene of Corfou (Greece) with special reference to the Miocene/Pliocene boundary and to
its geodynamic significance, Società Geologica Italiana Memorie, 16, 279-317.
Stewart, H.B.Jr, 1958. Sedimentary reflections of depositional environments in San Miguel Lagoon,
Baja California, Mexico, Am.Assoc.Petr.Geol.Bull.,42, 2567-2618.
Valia, H.S. and Cameron, B., 1977. Skewness as a Paleoenvironmental indicator, Jour. Sed. Petr.,
, 2, 784-793.
Varnavas, S.P., 1979. Geochemistry of sediments from the eastern Pacific, Ph. D. Thesis, University
London, 431 pp.
Zelilidis, A., Piper, D.J., Vakalas, I., Avramidis, P. and Getsos, K., 2003. Oil and Gas Plays in
Albania: Do Equivalent Plays Exist in Greece? Journal of Petroleum Geology, 26, 29-48.
Zelilidis, A., Maravelis, A., Tserolas, P. and Konstantopoulos, P., 2015. An overview of the
petroleum systems in the Ionian zone, onshore NW Greece and Albania, Journal of
Petroleum Geology, 38, 331-348.
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