Investigations on sediment profiles from Lake Ohrid (Macedonia/Albania)

DOI

Lake Ohrid, at the Macedonian/Albanian border, was likely tectonically formed during the Tertiary and therefore is one of the oldest lakes in Europe. However, only a few studies exist concerning the potential of Lake Ohrid sediments for long-term palaeoenvironmental reconstructions within the scope of future potential deep-drilling campaigns. Therefore, as a first step, a transect of short surface sediment cores was investigated for chronology, physical properties, grain size, and biogeochemistry. The results were compared with information derived from a shallow hydro-acoustic seismic survey. The investigations indicate a rather uniform and bioturbated sedimentation in the central part of the lake basin with mean sedimentation rates of ca. 0.5-1 mm/year. The sediment composition is dominated by authigenetic carbonates. Diatom frustules or fragments form the major part of biogenic matter deposits, as indicated by the relatively high contents of biogenic opal and low contents of total organic carbon and total nitrogen. The shallow hydro-acoustic seismic survey indicates that horizons of sediment redeposition occur sporadically. Towards the shore of the lake, the sedimentation rate increases and sedimentation is increasingly influenced by local inflows or massmovement processes triggered by tectonic activities. Thus Lake Ohrid has a high potential for palaeoenvironmental reconstructions on a multi-decadal scale and provides additional information concerning tectonic activity in the region.

The erraneously missing Fig. 3 of the publication is available at hdl:10013/epic.37549.d001.Seismic profiles of figures 8, 9 and 10 are available in high resolution at hdl:10013/epic.37550.d001.

Supplement to: Wagner, Bernd; Reicherter, Klaus; Daut, Gerhard; Wessels, Martin; Matzinger, Andreas; Schwalb, Antje; Spirkovski, Zoran; Sanxhaku, Mitat (2008): The potential of Lake Ohrid for long-term palaeoenvironmental reconstructions. Palaeogeography, Palaeoclimatology, Palaeoecology, 259, 341-356

Identifier
DOI https://doi.org/10.1594/PANGAEA.760961
Related Identifier https://doi.org/10.1016/j.palaeo.2007.10.015
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.760961
Provenance
Creator Wagner, Bernd ORCID logo; Reicherter, Klaus; Daut, Gerhard ORCID logo; Wessels, Martin; Matzinger, Andreas ORCID logo; Schwalb, Antje ORCID logo; Spirkovski, Zoran; Sanxhaku, Mitat
Publisher PANGAEA
Publication Year 2011
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Representation
Language English
Resource Type Supplementary Publication Series of Datasets; Collection
Format application/zip
Size 14 datasets
Discipline Earth System Research
Spatial Coverage (20.702W, 40.938S, 20.759E, 41.156N); Lake Ohrid, Macedonian/Albanian border
Temporal Coverage Begin 2002-03-03T00:00:00Z
Temporal Coverage End 2005-03-16T00:00:00Z