Sulfur isotopes geochemistry of the bituminous fatha evaporates in fatha formation, Hit-Abu Jir Area, Western Iraq
Joint Authors
al-Ankaz, Zaynah Salim
Awadh, Salih Muhammad
Source
Issue
Vol. 39-49, Issue 2 (31 Dec. 2016), pp.34-45, 12 p.
Publisher
Publication Date
2016-12-31
Country of Publication
Iraq
No. of Pages
12
Main Subjects
Earth Sciences, Water and Environment
Abstract EN
Fatha Formation (Middle Miocene) in Hit area, western Iraq was targeted for this study.
Pure gypsum, bituminous gypsum and native sulfur were investigated for δ34S, FTIR and SEM to define the historical scenario of the paleo-environment and the relationship between sulfur, bitumen and evaporates (gypsum and anhydrite).
SEM along with FTIR clarified that the bitumen were injected into the gypsum under high stress generated from the basin hydrodynamic pressure.
The pure gypsum samples are enriched in heavy sulfur isotope and characterized by narrow range of δ34S values (22.5 – 23.52 ‰) indicating a primary gypsum formed by direct precipitation from saline without bacterial activity.
The lighter sulfur values (14.13 – 14.42 ‰) in the sulfur samples of the Abu-Jir area indicate a bacterial reduction of gypsum into native sulfur.
The difference between δ34S values in sulfur deposits in the Abu-Jir area (14.13 – 14.42 ‰) and in the Mishraq Mine (9.51 ‰) is clearly attributed to the remnant of gypsum as impurities within sulfur deposits in the Abu-Jir area.
The bitumen sample has depleted in δ34S value (-2.57 ‰), whilst the bituminous gypsum samples have enriched (22.07 – 24.11 ‰).
This high variation reflects the highly isotopic fractionation between oxic and anoxic environments.
American Psychological Association (APA)
Awadh, Salih Muhammad& al-Ankaz, Zaynah Salim. 2016. Sulfur isotopes geochemistry of the bituminous fatha evaporates in fatha formation, Hit-Abu Jir Area, Western Iraq. Iraqi Geological Journal،Vol. 39-49, no. 2, pp.34-45.
https://search.emarefa.net/detail/BIM-903684
Modern Language Association (MLA)
Awadh, Salih Muhammad& al-Ankaz, Zaynah Salim. Sulfur isotopes geochemistry of the bituminous fatha evaporates in fatha formation, Hit-Abu Jir Area, Western Iraq. Iraqi Geological Journal Vol. 39-49, no. 2 (2016), pp.34-45.
https://search.emarefa.net/detail/BIM-903684
American Medical Association (AMA)
Awadh, Salih Muhammad& al-Ankaz, Zaynah Salim. Sulfur isotopes geochemistry of the bituminous fatha evaporates in fatha formation, Hit-Abu Jir Area, Western Iraq. Iraqi Geological Journal. 2016. Vol. 39-49, no. 2, pp.34-45.
https://search.emarefa.net/detail/BIM-903684
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 44-45
Record ID
BIM-903684