Palynology, sedimentology and palaeoecology of the late Holocene Dead Sea

Author(s)
Markus Schwab, Mordechai Stein, Frank Harald Neumann, Elisa J. Kagan
Abstract

Palynological and sedimentological studies were performed at two Holocene profiles in erosion gullies (Ze¿elim and Ein Feshkha) which dissect the retreating western shore of the Dead Sea. The aim of the project was to analyse possible links between climate, lithology, and vegetation development. The section in Ze¿elim shows both lacustrine and fluvial sediments, whereas sedimentation at Ein Feshkha is predominantly lacustrine. The Ze¿elim profile, previously used for paleo-lake reconstruction provides an opportunity to compare climate triggered lake levels as paleo-hydrological indicators and vegetation history by use of palynology. The vegetation development in Ze¿elim and Ein Feshkha is influenced by both climate and human impact. The pollen record of Ze¿elim begins in the Pottery Neolithic, the section of Ein Feshkha in the Late Bronze Age, both records end in the Middle Ages. The Ze¿elim section is characterized by sedimentary hiati between the beginning of the Chalcolithic Period until the Middle Bronze Age and within the Late Bronze Age. Settlement periods during the Middle Bronze Age, Iron Age and Hellenistic¿Roman¿Byzantine Period are indicated by high values of anthropogenic indicators and/or Mediterranean trees. Collapses of agriculture, which can be related to climate effects, are evident during the Late Bronze Age, during the Iron Age and at the end of the Byzantine Period when the lake level curve indicates arid conditions. A comparison of the two pollen records, from different environments, illustrates a more prominent influence of Mediterranean vegetation and cultivated plants in the pollen diagram of Ein Feshkha. The southern Dead Sea region (at the desert fringe) is more vulnerable to regional climate change.

Organisation(s)
Department of Geology
External organisation(s)
Geological Survey of Israel (GSI), Rheinische Friedrich-Wilhelms-Universität Bonn, Hebrew University Jerusalem
Journal
Quaternary Science Reviews
Volume
26
Pages
1476-1498
No. of pages
22
ISSN
0277-3791
Publication date
2007
Peer reviewed
Yes
Austrian Fields of Science 2012
105121 Sedimentology, 105205 Climate change, 105118 Palaeontology
Sustainable Development Goals
SDG 13 - Climate Action
Portal url
https://ucrisportal.univie.ac.at/en/publications/20e4fba3-1ea2-4feb-8a2e-907e2aa2f97d