The origin of halite and gypsum with introduction of glauberite and sassolite minerals in Larestan Salt Dome, (South of Iran)

Document Type : Research Paper

Authors

1 PhD in Economic Geology, Azad University, Science and Research Branch of Tehran

2 Tehran University of Science and Research Branch

3 University of Shahid Beheshti

Abstract

Salt domes are one of the most notable features of Zagros fold belt in the south of Iran. In this study the salt of Dehkoyeh, Paskhand and Karmostaj domes located in Larestan were analyzed based on salt colors. In mineralogical studies for the first time two minerals, sassolite B(OH)3 and glauberite Na2Ca(SO4)2  which are of today 's fumaroles indexes in different parts of the world, were identified in Dehkoyeh dome as well as Hormuz salt formation. Generally, compared to other existing elements iron has the greatest impact on the changes of salt color. In salts accompanying sassolite and Glauberite certain minerals with temperature range between 50°C to 60°C were identified. Sea floor fumaroles has probably played important roles in formation of Hormuz salt in infra-Cambrian era. In all probability this fumarole was the main supply of ions needed for salt formation and this fact justifies the emergence of large volumes of Hormuz salt in a relatively short time.

Keywords

References

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Applied Sedimentology
Volume 4, Issue 8 - Serial Number 8
February 2016
Pages 11-21

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History

  • Receive Date: 18 September 2016
  • Revise Date: 06 February 2017
  • Accept Date: 06 February 2017

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