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| Titel |
Possible earthquake trigger for 6th century mass wasting deposit at Lake Ohrid (Macedonia/Albania) |
| VerfasserIn |
B. Wagner, A. Francke, R. Sulpizio, G. Zanchetta, K. Lindhorst, S. Krastel, H. Vogel, J. Rethemeyer, G. Daut, A. Grazhdani, B. Lushaj, S. Trajanovski |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1814-9324
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| Digitales Dokument |
URL |
| Erschienen |
In: Climate of the Past ; 8, no. 6 ; Nr. 8, no. 6 (2012-12-20), S.2069-2078 |
| Datensatznummer |
250005988
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| Publikation (Nr.) |
 copernicus.org/cp-8-2069-2012.pdf |
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| Zusammenfassung |
| Lake Ohrid shared by the Republics of Albania and Macedonia is formed by a
tectonically active graben within the south Balkans and suggested to be the
oldest lake in Europe. Several studies have shown that the lake provides a
valuable record of climatic and environmental changes and a distal
tephrostratigraphic record of volcanic eruptions from Italy. Fault
structures identified in seismic data demonstrate that sediments have also
the potential to record tectonic activity in the region. Here, we provide an
example of linking seismic and sedimentological information with tectonic
activity and historical documents. Historical documents indicate that a
major earthquake destroyed the city of Lychnidus (today: city of Ohrid) in
the early 6th century AD. Multichannel seismic profiles, parametric
sediment echosounder profiles, and a 10.08 m long sediment record from the
western part of the lake indicate a 2 m thick mass wasting deposit, which is
tentatively correlated with this earthquake. The mass wasting deposit is
chronologically well constrained, as it directly overlays the AD 472/AD 512
tephra. Moreover, radiocarbon dates and cross correlation with other
sediment sequences with similar geochemical characteristics of the Holocene
indicate that the mass wasting event took place prior to the onset of the
Medieval Warm Period, and is attributed it to one of the
known earthquakes in the region in the early 6th century AD. |
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