A Neogene salt body as the primary source of the salinity in Lake Kinneret

A. Flexer, Annat Yellin-Dror, Joel Kronfeld, Eliahu Rosenthal, Zvi Ben-Avraham, Philippe Pascal Artsztein, Lea Davidson

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


A mineraiogicai study of sporadic samples from the thick salt sequence found within wildcat Zemah-!, revealed the presence of evaporite minerals beyond the level of halite precipitation. The presence of post halite minerals extending up to, and including, bischofite cannot be excluded. The finding of the more soluble K and Mg salts shows evidence of an advanced degree of seawater evaporation that
acted, presumably cyclically, on seawater that intruded during Miocene-Pliocene times into the Rift Valley. The wildcat Zemah-l borehole is located immediateiy south of Lake Kinneret. The region is dissected by regional faults that extend longirudinally across the lake. These faults may act as conduits for groundwater that flushes the salt body at various levels as it rises to the surface. The presence of such an extensive, mineralogically differentiated salt body (similar to other such structures in the Rift) may explain the high Cl, Br and Mg contents and the deficiency of Na in groundwater and spnngs emereing along the eastern shore of the lake and in the nearby Rift extension. The Zemah-l salt body as weil as similar structures in the Rift, may be the sources of the brines discharging along the eastern, southern and southwestem shores of the lake and pcssibiy may be diffusing upwards throu-eh the sediments alon-q the entire lake floor.
Original languageEnglish
Title of host publicationLimnology and Lake Management 2000+
Subtitle of host publicationProceedings of the Kinneret Symposium, Ginnosar, Israel, Sept. 1998
EditorsTom Berman, K. David Hambright, Joel Gat, Sarig Gafny, Assaf Sukenik, Max Tilzer
Place of PublicationStuttgart, Germany
PublisherE Schweizerbart Science Publishers
Number of pages17
ISBN (Print)9783510470570
StatePublished - Feb 2000

Publication series

NameArchiv fur Hydrobiologie
PublisherE. Schweizerbart'sche Verlagsbuchhandlung
ISSN (Print)0003-9136
NameAdvances in Limnology


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