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Papers by Sattar Al-khafaji

Kuwait Journal of Science

BASRA JOURNAL OF SCIENCE

Gypsum rocks of Fatha Formation in Zurbatiyah area, eastern Iraq were studied in terms of mineral... more Gypsum rocks of Fatha Formation in Zurbatiyah area, eastern Iraq were studied in terms of mineralogy and petrography. Mineralogically, X-ray difractometry results reveal that gypsum rocks are predominantly composed of gypsum minerals with minor amounts of calcite, anhydrite, bassanite and dolomite minerals. Scanning electron microscopy has shown that gypsum rocks rich inclusion with (Mg) in some samples. Fatha gypsum rocks have higher thickness in the succession of formation with marl, clay and limestone forming multi cyclic deposition. The thickness of Fatha formation in the studied area reach to 525 m. Petrographical and textural analyses reveal the common petrographical texture types of gypsum, alabastrine, satinspar, selenite, porphyroblastic, blocky, and columnar gypsum texture reflect evolutionary alterations relationships such as crystallization and recrystallization of gypsum rocks. The secondary hydration of anhydrite to gypsum and other alteration changes refer to shallow ...

Design Engineering, Sep 6, 2021

Iraqi National Journal of Earth Sciences, 2012

It appears that the tectonism throughout early middle Miocene played an important role in the var... more It appears that the tectonism throughout early middle Miocene played an important role in the variations and distribution of facies zones within Jeribe basin. Although, the

Rafidain journal of science, May 1, 2005

Journal of Basrah Researches (Sciences), 2019

Iraqi Journal of Science

Twenty sand samples were collected from the sand dunes of Missan fields, Southeastern Ira... more Twenty sand samples were collected from the sand dunes of Missan fields, Southeastern Iraq. Grain size distribution, mineralogical and chemical composition were studied for the total, medium, and fine-size sand fractions. The grain size analysis shows that the sand is the main component, followed by silt and trace of clay. The predominant grain size of sand is 0.250 to 0.500 mm, which forms more than 57.28 %, which indicates that these dunes were formed under the influence of relatively strong winds and the sedimentary material is close to the source. The light components are quartz, feldspar, and different rock fragments, while the heavy mineral assemblages are composed of opaque minerals, chlorite, mica, and amphiboles. Pyroxene and epidote are the common minerals, while zircon, garnet, tourmaline, rutile, kyanite, and staurolite are in minor amounts. X-ray diffraction (XRD) data reveals that the predominant non-clay minerals are quartz, calcite, feldspar, and gypsum. Whil...

IRAQI BULLETIN OF GEOLOGY AND MINING, 2012

Iraqi National Journal of Earth Sciences, 2020

Limestone deposits of Ibrahim Formation in Zurbatiya area, eastern Iraq are assessed as raw mater... more Limestone deposits of Ibrahim Formation in Zurbatiya area, eastern Iraq are assessed as raw materials for the industry of Ordinary Portland Cement (OPC). The deposits are widely exposed in the area close to Iraq-Iran borders. Six samples were collected from selected section of Ibrahim Formation, which consists of a succession of well-bedded white to gray limestone interbedded with gray marl and marly limestone. X-ray diffraction results show that calcite is the dominant mineral followed by quartz and traces of dolomite which appear in limited samples. X-ray fluorescence results revealed a noticeable increase of SiO2, which might be due to the effect of limestone by silicification process, so the rocks are considered to be a siliceous limestone. The other oxides (CaO, Al2O3, Fe2O3, MgO, Na2O, K2O, TiO2, SO3, and P2O5) are within the acceptable limits required for cement industry. Cement chemical parameters indicated that there is a decrease in the lime saturation factor (LSF) and an increase in silica ratio (SR) in comparison with the chemical parameters listed by standard specifications due to the increase of silica content. This increase can be adjusted by adding clays, or any other source of low silica content in addition to use iron and alumina as correcting additive materials for the cement mixture.

Samarra Journal of Pure and Applied Science, 2021

Gypsum deposits are wide spread in Zurbatiyah area, Eastern of Iraq, especially in Fatha Formatio... more Gypsum deposits are wide spread in Zurbatiyah area, Eastern of Iraq, especially in Fatha Formation. Gypsum deposits have been known as a suitable materials for gypsum plaster industry. Sawdust and Palm fibers powders have been added in different ratios to gypsum plaster material mixture to improve their industrial properties. Addition of 0 %,1 %, 5%, 10% and 15 % pass of 4.75 mm size of sawdust and palm fibers powder and 0 %, 1 %, 5%, 10% and 15 % pass of 5.60 mm size of sawdust and palm fibers powder to gypsum plaster material mixture. This ratios showed results of consistency (35-75 ml/gm), setting time (11-20 min) and compressive strength (2.2-4.4 N/mm2) for sawdust powders size 4.75 mm, whereas the results of consistency (35-63 ml/gm),setting time (11-21 min) and compressive strength (2.0-4.2 N/mm2) for palm fibers powders size pass of 4.75 mm. The addition of 1% and 5% pass of 4.75 mm sawdust and palm fibers powder to gypsum plaster material mixture showed an improvements in co...

Iraqi Journal of Science, 2019

Fifteen samples were collected from recent sediments grouping at 80 km east Samawa City, southern... more Fifteen samples were collected from recent sediments grouping at 80 km east Samawa City, southern Iraq. Three selected samples for grain size analysis and twelve samples for chemical and biofacies analysis. Grain size analysis indicated that the sediment is mainly composed of the silt and clay with a small amount of sand. Most of the samples considered to be as clayey silt. The dominated non clay minerals are Quartz, Calcite, and Dolomite, while the clay minerals are composed of mixed Montmorillonite- Chlorite, Palygorskite, Illite and Kaolinite. Chemical analysis showed that all samples have high concentrations of SiO2 and CaO in comparison with Al2O3, MgO, Fe2O3, K2O and N2O. The identified faunas consist of a number of groups such as Mollusca, Ostracoda and Charophyta, all diagnosed genera indicated of fresh water environments. The results from all collected data are indicated that the sediments belong to flood plain deposits which deposited in fluviatile environments.

International Journal for Sciences and Technology