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| Titel |
Tephrostratigraphy and tephrochronology of lakes Ohrid and Prespa, Balkans |
| VerfasserIn |
R. Sulpizio, G. Zanchetta, M. D'Orazio, H. Vogel, B. Wagner |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 7, no. 10 ; Nr. 7, no. 10 (2010-10-22), S.3273-3288 |
| Datensatznummer |
250005023
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| Publikation (Nr.) |
 copernicus.org/bg-7-3273-2010.pdf |
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| Zusammenfassung |
| Four cores from Balkans lakes Ohrid and Prespa were examined for recognition
of tephra layers and cryptotephras, and the results presented along with the
review of data from other two already published cores from Lake Ohrid. The
six cores provide a previously unrealised tephrostratigraphic framework of
the two lakes, and provide a new tephrostratigraphic profile (composite) for
the Balkans, which spans from the end of the Middle Pleistocene to the AD
472. A total of 12 tephra layers and cryptotephras were recognised in the
cores. One is of Middle Pleistocene age (131 ka) and correlated to the
marine tephra layer P-11 from Pantelleria Island. Eight volcanic layers are
Upper Pleistocene in age, and encompass the period between ca. 107 ka and
ca. 31 ka. This interval contains some of the main regional volcanic markers
of the central Mediterranean area, including X-6, X-5, Y-5 and Y-3 tephra
layers. The other layers of this interval have been related to the marine
tephra layers C20, Y-6 and C10, while one was for the first time recognised
in distal areas and correlated to the Taurano eruption of probable Vesuvian
origin. Three cryptotephras were of Holocene age. Two of which have been
correlated to Mercato and AD 472 eruptions of Somma-Vesuvius, while the
third has been correlated to the FL eruption from Mount Etna. These
recognitions provide a link of the Ohrid and Prespa lacustrine successions
to other archives of the central Mediterranean area, like south Adriatic,
Ionian, and south Tyrrhenian seas, lakes of southern Italy (Lago Grande di
Monticchio, Pantano di San Gregorio Magno and Lago di Pergusa) and Balkans
(Lake Shkodra). |
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