02477nas a2200277 4500000000100000008004100001653001800042100001300060700001900073700001300092700001600105700001500121700001700136700001600153700001200169700001500181700001400196700002000210700001700230245010800247856007100355300001100426490000800437520174000445022001402185 2015 d10aMediterranean1 aC. Satow1 aE.L. Tomlinson1 aK. Grant1 aP.G. Albert1 aV.C. Smith1 aC.J. Manning1 aL. Ottolini1 aS. Wulf1 aE. Rohling1 aJ.J. Lowe1 aS.P.E. Blockley1 aM.A. Menzies00aA new contribution to the Late Quaternary tephrostratigraphy of the Mediterranean: Aegean Sea core LC21 uhttp://www.sciencedirect.com/science/article/pii/S027737911500147X a96-1120 v1173 a
Abstract Tephra layers preserved in marine sediments can contribute to the reconstruction of volcanic histories and potentially act as stratigraphic isochrons to link together environmental records. Recent developments in the detection of volcanic ash (tephra) at levels where none is macroscopically visible (so-called \textquoteleftcrypto-tephra\textquoteright) have greatly enhanced the potential of tephrostratigraphy for synchronising environmental and archaeological records by expanding the areas over which tephras are found. In this paper, crypto-tephra extraction techniques allow the recovery of 8 non-visible tephra layers to add to the 9 visible layers in a marine sediment core (LC21) from the \SE\ Aegean Sea to form the longest, single core record of volcanic activity in the Aegean Sea. Using a novel, shard-specific methodology, sources of the tephra shards are identified on the basis of their major and trace element single-shard geochemistry, by comparison with geochemical data from proximal Mediterranean volcanic stratigraphies. The results indicate that the tephra layers are derived from 14 or 15 separate eruptions in the last ca\ 161\ ka\ BP: 9 from Santorini; 2 or 3 from Kos, Yali, or Nisyros; 2 from the Campanian province; and one from Pantelleria. The attributions of these tephra layers indicate that 1) inter-Plinian eruptions from Santorini may have produced regionally significant tephra deposits, 2) marine tephrostratigraphies can provide unique and invaluable data to eruptive histories for island volcanoes, and 3) tephra from both Pantelleria and Campania may be used to correlate marine records from the Aegean Sea to those from the Tyrrhenian, Adriatic and Ionian Seas.
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