Reconstructing low levels of Lake Lisan by correlating fan-delta and lacustrine deposits

Citation
M. Machlus et al., Reconstructing low levels of Lake Lisan by correlating fan-delta and lacustrine deposits, QUATERN INT, 73-4, 2000, pp. 137-144
Citations number
42
Categorie Soggetti
Earth Sciences
Journal title
QUATERNARY INTERNATIONAL
ISSN journal
10406182 → ACNP
Volume
73-4
Year of publication
2000
Pages
137 - 144
Database
ISI
SICI code
1040-6182(2000)73-4:<137:RLLOLL>2.0.ZU;2-6
Abstract
Reconstruction of paleo-shorelines of Lake Lisan, the late Pleistocene prec ursor of the Dead Sea, is based on sequence stratigraphy of fan-delta and l acustrine deposits that are exposed at the Perazim Valley, southwest of the Dead Sea. The shoreline sediments are physically correlated with lacustrin e aragonites, their ages are determined by U-series dating, to establish a lake-level curve for the time interval between 55 and 35 kyr. During most o f this period, Lake Lisan was at a relatively low level, which fluctuated b etween 280 and 290 m below sea level (m bsl). The minimum lake stand( simil ar to 330m bsl) was reached at 47 kyr and lasted for 3-4 kyr. This episode is marked by a depositional hiatus in the section, and formation of an eros ional channel. The studied period correlates with the global marine isotope stage 3. The low stand of Lake Lisan during most of this period indicates relative dry climatic conditions in the region. (C) 2000 Elsevier Science L td and INQUA. All rights reserved.