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MICROFACIES ANALYSIS OF GHAR FORMATION (WESTERN DESERT OF IRAQ) | ||
| Bulletin of the Iraq Natural History Museum | ||
| Article 1, Volume 10, Issue 2, 2009, Pages 49-55 | ||
| Authors | ||
| Sadi Kan Jan Kaka; Aqeel A. AL-Zubaidi | ||
| Abstract | ||
| ABSTRACT Ghar Formation outcrop at the Iraqi western desert was studied by microfacies analysis of (13) thin sections collected from wadi Al-Ratgha ( west of Qaim ) . According to petrographic com position and organisms content ,rocks were subdivided into (4) microfacies units :bioclastic wackestone , mudstone , miliolids wackestone , and grainstone with aggregate grains microfacies .Microfacies units reflect shallow marine environment of low circulation of very warm water at the middle part . The lower and middle part interbedded with quite open marine environment below the wave base . The upper part was deposited at shallow marine environment of low circulation . The main diagenetic processes were the transformation ( type of neomorphism) and precipitation of calcite in the fractures and fossil chambers . | ||
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