Fig.(1) Layout of working panel at Abu-Tartur phosphate mine and the grid of measurements. Surface subsidence over working longwall panel has been monitored after the face has advanced 280m. The mining height is about 3m and rate of face advance is 0.63 m/day. The vertical component of subsidence is measured along transversal profile 7.
The Abu Tartur region was transgressed by deltaic conditions with a shallow-water marine shelf. The predominance of glauconites and their associated iron-rich cements suggests a humid climate and deep lateritic weathering which delivered abundant iron to inner portions of the Egyptian shelf. ... Neto de Carvalho C, Couto H, Figueiredo …
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This paper aims to estimate phosphate ore grade in the Abu Tartur area, Western Desert, Egypt, using four Machine Learning Algorithms (MLA), Geostatistical Techniques (variogram and kriging models ...
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The Abu-Tartur plateau lies 600 km southwest of Cairo and 50 km west of El Kharga Oasis, Western Desert (Fig. 1).It is located between Dakhla Oasis to the west and Kharga Oasis to the east (Fig. 2).The southern edge of the plateau overlooks the Nubia plain to the south, whereas it gently tilts northward forming the general surface of north …
Also, the type of hydrocarbons potentially produced from black shale mostly falls in the gas prone zone, with an exception for samples# B1 and B2 located in the non-zone of oil production due to their lean content of TOC. The potential gas production from Abu-Tartur black shale is consistent with literature (Robison 1986; El Nady and …
The objective of the present work, study. all factors affecting on phosphate dissolution of Abu Tartur phosphate ore. The optimum. conditi ons for dissolution of phosphate ore by p. chrysogenum ...
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Spectral remote sensing mapping methods were applied for mapping apatite mineral as a key indicator of phosphate ore outcrops at the eastern side of Abu Tartur Plateau, Western Desert, Egypt, using Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) and Landsat series imagery. Previous investigations of …
A phosphate mine located in the Western desert of Egypt, about 60 km from El-Kharga City, and 10 km from the main road going between El-Kharga and El-Dakhlah. Abu Tartur …
Analysis of the concentrate produced from Abu Tartur phosphate rock was found to give 96% CaO, 2.8% Ln 2 O 3, 0.6% P and 0.009% Fe. This indicates that almost complete recovery of lanthanides content in the Abu Tartur phosphate rock sample has been obtained. Also, the oxide mixture was identified by X-ray to be mainly CaO, Y 2 O …
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The kerogen in the Abu Tartur section is of type III with the exception of sedimentary deposits at the Duwi/Dakhla transition. Low T max, odd-over-even predominance of n -alkanes with a commonly high Carbon Preference Index, good preservation of carboxylic acids and abundant 17β,21β-hopanes and -hopanoic acids …
In our case of using H3PO4 alone a phosphate concentrate assaying 30.1% P2O5 (at P2O5 recovery of 75.3%) and 0.75% MgO was obtained from a feed material assaying 23% P2O5 and 3.77% MgO. The ...
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Abu Tartur phosphate rock from Egypt, Amine et al. [25] for Moroccan phosphate ore, Bandara and Senanayake [26, 27] as well as Stone et al. [28] for uorapatite from Australia, Jin
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The leaching of rare earth elements (REEs) from Egyptian Abu Tartur phosphate rock using phosphoric acid has been examined and was subsequently optimized to better understand if such an approach could be industrially feasible. Preliminary experiments were performed to properly define the design of experiments. Afterward, 24 …
Photomicrographs of Abu-Tartur Dakhla Shale showing a dark brown clay matrix engulfed numerous fossil tests (a-PPL&b-XPL) and the replacement of clay matrix by a brownish creamy carbonate mud (c & d-PPL) and anhydrite veinlets (e&f). (For interpretation of the references to color in this figure legend, the reader is referred to the …
Abu Tartur phosphorites exhibit very high ΣREE contents (more than 1000 p.m.), compared to that of the Nile Valley (257 ppm) and the Red Sea deposits (232 ppm) (Baioumy, 2011; Awadalla, 2010 ...
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The Abu-Tartur phosphate deposit was found to have lower activity than many others exploited phosphate sedimentary deposits, with its average total annual dose being only 114.6 µSv y−1.
La déforestation, en particulier dans les zones tropicales, est imputable à l'agriculture, à la construction d'infrastructures et l'expansion urbaine, et en quatrième position à l'exploitation de minerais. D'après une étude du Centre pour la recherche forestière internationale, celle-ci représenterait 7% de la déforestation.
Abstract. Upper Cretaceous tidal-flat sediments of the Abu Tartur region, Western Desert of Egypt, contain a variety of soft-sediment deformation structures (SSDSs) in the Mut Member of the Quseir ...
