File:Rock salt (halitite) (Holocene; seafloor of the Dead Sea, Israel) 2 (15014868756).jpg

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Dead Sea rock salt (halitite) (upper left specimen is 4.1 cm across diagonally)


These are some friable masses of rock salt (halitite) from the modern seafloor of the Dead Sea in Israel. The Dead Sea has the highest-salinity surface water anywhere on Earth (~30% or more total salt; ordinary seawater is 3.5% salt). Dead Sea water has high concentrations of Cl, Mg, Na, Ca, and K.

The Dead Sea is located deep in a tectonic rift valley, part of a rift system that extends south into the Red Sea and toward the Afar Hotspot. Salt has accumulated in the Dead Sea because the lake lacks an outlet. The only significant inlet is the Jordan River. The Dead Sea is apparently devoid of life (hence the name “dead”), but it does have some halotolerant/halophilic bacteria and algae.

These rocks are composed of halite (NaCl - sodium chloride), the most common mineral that precipitates from Dead Sea brine.
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Source Rock salt (halitite) (Holocene; seafloor of the Dead Sea, Israel) 2
Author James St. John

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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/15014868756 (archive). It was reviewed on 6 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

6 December 2019

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Date/TimeThumbnailDimensionsUserComment
current02:37, 6 December 2019Thumbnail for version as of 02:37, 6 December 20192,017 × 1,768 (672 KB)Ser Amantio di Nicolao (talk | contribs)Transferred from Flickr via #flickr2commons

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