Recognition of evaporite minerals in Siahkub desert areas of tbe Yazd Province, Iran

Abstract

the Siahkuh playa is one of the greatest deserts in Yu.d province
and is located in the north-north eastern of Ardakan city. In playa regions,
different sub-environments with different mineral potentials can be
recognized. In Siahkuh playa, various evaporite minerals such as gypsum in
different form (sugery, nodular and euhedral crystals), halite (fibrous,
cylindrical, hopper-shaped crystals and ball-shaped), and sodium sulfate
were indentified. Sodium su lfate (Thenardite) is a commercial chemical
compound which is formed in playas environments. This compound was also
found for the first time in mud flat sub-environment of SW of Siahkuh
playa. In brine waters of salt lakes sub-environment of Siahkuh playa.
various elements such as lithium, magnesium, calcium, potassium and
sodium were detected.

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