Mineralogy and Genesis of Zeolites of Gedarif Area, Eastern Sudan

Amygdaloidal, cavity- and vein-filling zeolites in basaltic rocks from the Gedarif area in the eastern Sudan have been studied in some detail by optical microscope and X R D techniques combined with field observations. This show that basalt experienced two paragenetic stages with respect to their texture and mineralogy. Stage 1 alteration, which occurred in response to the burial of basaltic rocks and their interaction with heated groundwater, is characterized by the formation of low-temperature zeolite facies minerals in vesicles (amygdales) containing mainly fine- grained zeolite minerals (natrolite, stilbite, chabazite, analcime and thomsonite). Stage 2 mineralization occurred due to an activity of hydrothermal solutions that formed large crystals of natrolite, stilbite, chabazite, analcime and mesolite, associated frequently with quartz (Geodes quartz), calcite and semi gemstones. © 2022 Institute of Physics Publishing. All rights reserved.

Authors
Suliman T.A.1 , Eshag T.E.1 , Hassan M.A. 2, 3 , Kotelnikov A.E. 2
Publisher
Institute of Physics Publishing
Number of issue
4
Language
English
Status
Published
Number
042061
Volume
988
Year
2022
Organizations
  • 1 Department of Agrominerals, Geological Research Authority of Sudan, Ministry of Minerals, Nile St, Khartoum, 410, Sudan
  • 2 Department of Mineral Developing and Oil & Gas Engineering, Academy of Engineering, Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya str.6, Moscow, 117198, Russian Federation
  • 3 Department of Geology, Faculty of Petroleum & Minerals, Al Neelain University, 52nd St, Khartoum, 12702, Sudan
Date of creation
06.07.2022
Date of change
06.07.2022
Short link
https://repository.rudn.ru/en/records/article/record/83830/
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