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Electron Microprobe Correlation of Tephra Layers from Eastern Mediterranean Abyssal Sediments and the Island of Santorini

Published online by Cambridge University Press:  20 January 2017

Alan N. Federman  and
Steven N. Carey
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Abstract

Five widespread tephra layers are found in late Quaternary sediments (0–130,000 yr B.P.) of the Eastern Mediterranean Sea. These layers have been correlated among abyssal cores and to their respective terrestrial sources by electron-probe microanalysis of glass and pumice shards. Major element variations are sufficient to discriminate unambiguously between the five major layers. Oxygen isotope stratigraphy in one of the cores studied was used to data four of the five layers. Two of the widespread layers are derived from explosive eruptions of the Santorini volcanic complex: the Minoan Ash (3370 yr B.P.) and the Acrotiri Ignimbrite (18,000 yr B.P.). An additional layer, found in one core only, is most likely correlated to the Middle Pumice Series of Santorini (approximately 100,000 yr B.P.). Two layers are correlated to deposits on the islands of Yali and Kos and date to 31,000 and 120,000 yr B.P., respectively. One layer originated from the Neapolitan area of Italy 38,000 yr B.P.

Type
Research Article
Information
Quaternary Research , Volume 13 , Issue 2 , March 1980 , pp. 160 - 171
Copyright
University of Washington

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References

Bond, A., (1976). Multiple sources of pumice in the Aegean. Nature (London) 249 194 196 CrossRefGoogle Scholar
Bond, A. Sparks, R.S.J., (1976). The Minoan eruption of Santorini, Greece. Journal of the Geological Society 132 1 6 Google Scholar
Bence, A.E. Albee, A.L., (1968). Empirical correction factors for electron microanalysis of silicates and oxides. Journal of Geology 76 382 403 Google Scholar
Borchardt, G.A. Harward, M.E. Schmitt, R.A., (1971). Correlation of volcanic ash deposits by activation analysis of glass separates. Quaternary Research 1 247 260 CrossRefGoogle Scholar
Di Paola, G.M., (1974). Volcanology and petrology of Nisyros Island (Dodecanese, Greece). Bulletin Volcanologique 38 944 987 Google Scholar
Keller, J., (1970). Origin of rhyolites by anatectic melting of granitic crustal rocks. Bulletin Volcanologique 33 942 959 Google Scholar
Keller, J. Ninkovich, D., (1972). Tephra-lagen in der Agais. Zeitschrift der Deutschen Geologischen Gesellschaft 123 579 587 Google Scholar
Keller, J. Ryan, W.B.F. Ninkovich, D. Altherr, R., (1979). 200,000 years of Mediterranean explosive volcanic activity as recorded in deep sea sediment. Geological Society of America Bulletin 89 591 604 2.0.CO;2>CrossRefGoogle Scholar
Lineweaver, J.L., (1963). Oxygen outgassing caused by electron bombardment of glass. Journal of Applied Physics 34 1786 1791 Google Scholar
Mellis, O., (1954). Volcanic ash horizons in deep sea sediment. Deep-Sea Research 2 89 92 Google Scholar
Neumann Van Padang, M., (1936). Die Geschicte des Vulkanismus Santorins von ihren Anfangen. Reck, H. Santorin-Der Werdegang eines Inselvulkans und sein Ausbruch 1925–1928 Vol. 1 D. Reimer Berlin 1 28 Google Scholar
Nicholls, I.A., (1971). Petrology of Santorin volcano, Cyclades, Greece. Journal of Petrology 12 67 119 Google Scholar
Ninkovich, D. Heezen, B.C., (1965). Santorini tephra. Whittard, W.F. Bradshaw, R. Submarine Geology and Geophysics. Butterworths London 413 425 Google Scholar
Ninkovich, D. Heezen, B.C., (1967). Physical and chemical properties of volcanic glass shards. Nature (London) 213 582 584 CrossRefGoogle Scholar
Olausson, E., (1971). Tephra chronology and the late Pleistocene of the Aegean Sea. Opera Bontica 30 29 39 Google Scholar
Parker, F.L., (1958). Eastern Mediterranean Foraminifera reports. Swedish Deep-sea Expedition 8 247 284 Google Scholar
Pichler, H. Kussmaul, S., (1972). The calcalkaline volcanic rocks of the Santorini group (Aegean Sea, Greece). Neves Jahrbuch Mineralogische Abhandlungen 116 268 307 Google Scholar
Pichler, H. Friedrich, W., (1976). Radiocarbon dates of Santorini volcanics. Nature (London) 262 373 374 CrossRefGoogle Scholar
Reck, H., (1936). Santorin, der Wedergang eines Inselvulkans und sein Ausbruch 1925–1928 1 36 Google Scholar
Ryan, W.B.F., (1972). Stratigraphy of late quaternary sediments in the eastern Mediterranean. Stanley, D.J. The Mediterranean Sea. Dowden, Hutchinson and Ross Stroudsburg, Pa 149 169 Google Scholar
Shapiro, L. Brannock, W.W., (1962). Rapid Analysis of Silicate, Carbonate and Phosphate Rocks U.S. G. S. Bulletin 1144-A, A1-A52 Google Scholar
Sparks, R. S. J., and Wright, J., in press.Google Scholar
Thunell, R.C. Williams, D. Federman, A. Sparks, R.S.J., (1977). Late Quaternary tephra chronology of eastern Mediterranean sediments. Geological Society of America Abstracts with Programs 9 1200 Google Scholar
Thunell, R. Federman, A. Sparks, S. Williams, D., (1979). The age, origin, and volcanological significance of the Y-5 ash layer in the Mediterranean. Quaternary Research 12 241 253 Google Scholar
Watkins, N.D. Sparks, R.S.J. Sigurdsson, H. Huang, T.C. Federman, A. Carey, S. Ninkovich, D., (1978). Volume and extent of the Minoan tephra from Santorini volcano. Nature (London) 271 122 126 Google Scholar