| More

ON THE OCCURRENCE OF A VOLCANIC ASH LAYER IN THE XYLOKASTRO AREA, NORTH PELOPONNESUS, GREECE: MINERALOGY AND GEOCHEMISTRY

Views: 104 Downloads: 100
Ch. Vasilatos, M. Vlachou-Tsipoura, M.G. Stamatakis
Ch. Vasilatos, M. Vlachou-Tsipoura, M.G. Stamatakis

Abstract


This paper reports, for the first time, the occurrence of an ash layer intercalated within the Plio-Pleistocene lacustrine deposits near Xylokastro area, North Peloponnesus, Greece. Petrographic and geochemical characteristics of the ash layer are the basis of this study. An attempt was made to correlate the present findings to the reported data from other ash deposits. The composition of the ash bed showed a dacitic to rhyolitic calc alkaline suit. The geochemistry of the volcanic ash indicates high crustal contamination of the lava and points to an origin from the northwest part of the Aegean volcanic arc.


Keywords


Volcanic ash; glass shards; pumice; traces element geochemistry; tephrostratgraphy; western Aegean Volcanic Arc; Greece;

Full Text:

PDF

References


Armijo, R., Meyer, B., King, G.C.P., Rigo, A., Papanastasiou, D., 1996. Quaternary evolution of the Corinth

rift and its implications for Late Cenozoic evolution of the Aegean. Geophys. J. Int. 126, 11–53.

Bathrellos D.G.,, Vasilatos Ch., Skilodimou D.H., Stamatakis G.M., 2009. On the occurrence of a pumicerich

layer in Holocene deposits of western Peloponnesus, Ionian Sea, Greece. A geomorphological and

geochemical approach. Cent. Eur. J. Geosci., 1(1) , 19-32.

Bell R. E., McNeill L.C., Bull M.G. and Henstock J.T. 2008. Evolution of the offshore western Gulf of

Corinth. Geological Society of America Bulletin, V. 120, p. 156-178.

Cox, K.G, Bell, J.D, Pankhurst, R.J., The interpretation of igneous rocks. Allen and Unwin, London,

UK, 1979.

Cramp A., Vitaliano J. C. Collins B. M. 1989. Identification and Dispersion of the Campanian Ash Layer

(Y-5) in the Sediments of the Eastern Mediterranean. Geo-Marine Letters V. 9, p. 19-25

De La Roche, H., 1980. A classification of volcanic and plutonic rocks using R1–R2 diagrams and major

element analyses—its relationships and current nomenclature, Chem. Geol. 29, pp. 183–210.

Doutsos, T., Piper, D.J.W., 1990. Listric faulting, sedimentation and morphological evolution of the Quaternary

eastern Korinth rift, Greece; first stages of continental rifting. GSA Bull. 102, 819–879.

Irvine, T.N., Baragar, W.R.A., 1971. A guide to the chemical classification of the common volcanic rocks,

Canadian Journal of Earth Science, 8, 523 – 548.

Izett, G.A., 1981. Volcanic ash beds: recorders of upper Cenozoic silicic pyroclastic volcanism in the

western U.S. Journal of Geophysical Research 86, pp. 10,200–10,222.

Fischer R.V. 1965. Settling velocity of shard glass. Deep Sea Research and Oceanographic Abstracts.

,3, 345-346.

Ori, G.G., 1989. Geological history of the extensional basin of the gulf of Corinth (?Miocène–Pleistocène),

Greece. Geology V. 17, p. 918–921.

Pecerillo, A. and Taylor, S.R., 1976. Geochemistry of Eocene calc-alkaline volcanic rocks from the Kas-

XLIII, No 5 – 2783

tamonu area, northern Turkey. Contrib. Mineral. Petrol. 58, pp. 63–81.

Place J., Géraud Y., Diraison M., Warr L. 2007. North-south transfer zones and paleo-morphological reconstruction

of the Xylokastro area (Corinth Gulf, Greece). Tectonophysics V. 440, p. 121–139

Richardson and D. Ninkovich, 1976. Use of K2O, Rb, Zr and Y versus SiO2 in volcanic ash layers of the

Eastern Mediterranean to trace their source, Geol. Soc. Am. Bull. 87, pp. 110–116.

Sorel D. 2000. A Pleistocene and still-active detachment fault and the origin of the Corinth-Patras rift,

Greece. Geology, V. 28; no. 1; p. 83-86.

Keller and D. Ninkovich, 1972. Tephra-Lagen in der Agäis. Z. Dtsch. Geol. Ges. 123, pp. 579–587.

Keller, W.B.F. Ryan, D. Ninkovich and R. Altherr, 1978, Explosive volcanic activity in the Mediterranean

over the past 200,000 yr as recorded in deep-sea sediments, Geol. Soc. Am. Bull., 89 pp.

–604.

Kokelar P. 1986, Magma-water interactions in subaqueous and emergent basaltic volcanism. Bull. of Volcanology

, 275-289.

Koutsouveli, A., Mettos, A., Tsapralis, V., Tsaila-Monopoli S., Ioakim, C., 1989. Geological Map of

Greece, scale 1:50000, Xylokastro sheet, IGME publications, Greece.

Lowe, D.J., Newnham, R.M., McFadgen, B.G. and Higham, T.F.G., 2000: Tephras and New Zealand archaeology.

Journal of Archaeological Science, 27, 859-870.

Lowe, D.J., Newnham, R.M. and McCraw, J.D., 2002: Volcanism and early Maori society in New Zealand.

In: Natural Disasters and Cultural Change; Torrence, R. and Grattan, J. (eds), Routledge, 126-161

Lykousis V. Sakellariou D., Moretti I, and Kaberi H., 2007. Late Quaternary basin evolution of the

Gulf of Corinth: Sequence stratigraphy, sedimentation, fault–slip and subsidence rates.

Tectonophysics, V, 440, issues 1-4, p. 29-51.

Middlemost, K.A.E,. 1994. Naming materials in the magma/igneous rock system, Earth-Science Reviews

, pp. 215–224.

Mitropoulos P., Tarney J., Saunders A. D., and Marsh N. G., 1987. Petrogenesis of Cenozoic volcanic

rocks from the Aegean island arc. Journal of Volcanology and Geothermal Research 32, p. 177-193.

Ori, G.G., 1989. Geological history of the extensional basin of the gulf of Corinth (?Miocène–Pleistocène),

Greece. Geology V. 17, p. 918–921.

Rose W.I. and Chesner C.A. 1987: Dispersal of ash in the great Toba eruption. Geology 15, 913-917.

Sun S.S., McDonough W.F., 1989. Chemical and isotopic systematics of oceanic basalts: implications

for mantle composition and processes. In: Saunders, A.D., Norry, M.J. (Eds.), Magmatism in the

Ocean Basins. Geological Society Special Publications, pp. 313–345.

Seymour, K., Christanis, K., Bouzinos, A., Papazisimou, St., Papatheodorou, G., Moran, E. & Denes, G.,

Tephrostratigraphy and tephrochronology in the Philippi peat basin, Macedonia, Northern Hellas

(Greece), Quatern. Internat., 121, 53 – 65.

Stamatakis M.G. 1995. Occurrence and genesis of huntite-hydromagnesite assemblages, Kozani basin,

Greece - important new white fillers and extenders. 1995. IMM, Transactions B, V 104, p. 179-186.

Stamatakis M.G., Papageorgiou A., Fragoulis D. & Chaniotakis E. 2001. The nature of volcanic glass

and its effect in the pozzolanic activity of tuffaceous rocks originated from Macedonia, Northern

Greece. Proceedings of the 8th Euroseminar on Microscopy Applied to Building Materials. V. 1, p.

-280.

Turney, C.S.M., Lowe, J.J., Davies, S.M., Hall, V.A., Lowe, D.J., Wastegård, S., Hoek, W.Z., Alloway,

B., SCOTAV and INTIMATE members, 2004: Tephrochronology of Last Termination sequences in

Europe: a protocol for improved analytical precision and robust correlation procedures (a joint SCOTAV-

INTIMATE proposal). Journal of Quaternary Science 19, 111-120.

XLIII, No 5 – 2784

Vinci, A., 1985. Distribution and chemical composition of tephra layers from Eastern Mediterranean

abyssal sediments. Marine Geology, Volume 64, Issues 1-2, pp 143-155

Vitaliano, C.J., Taylor, S.R., Norman, M.D., McCulloch, M.T., Nicholls, I.A., 1989 Ash layers of the

Thera volcanic series: stratigraphy, petrology, and geochemistry. Thera and the Aegean World III. Papers

to be presented at the 3nd International Congress, Santorini, Greece 3–9 September 1989. Volume

I sessions 1–3, pp. 115–150.


Refbacks

  • There are currently no refbacks.


Copyright (c) 2017 Ch. Vasilatos, M. Vlachou-Tsipoura, M.G. Stamatakis

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