Le manque de phosphore entrave habituellement la croissance des plantes. L'étude « Les résidus d'un engrais vert de sarrasin (Fagopyrum esculentum) cultivé avec de la roche phosphatée modifient la biodisponibilité du phosphore dans le sol » visait principalement à tester des moyens d'augmenter la biodisponibilité du phosphore.
Among the phosphorite deposits in Egypt, the phosphorites of the Abu-Tartur area are characterized by high contents of iron ranging from 3 % to 7 % with an average of 5 %. …
According to the minister, the complex will be built within the Abu Tartur mine, on an area of 560,000 sqm and a storage area of 3m sqm. El Wady for Phosphate Industries and Fertilizers Company ...
usines de concassage à sagar en inde en bytosprahacz. IDE sont l industrie de la du pays en matière de potentiel d investissement information sur les mines de charbon en inde; processus denrichissement de la roche abu tartur; broyeur de ciment à billes recouvert de caoutchouc utilisé; sam a c et i corée du sud; groen groen pt broyeur ...
The flat low-lying El-Zaiyat Plain located to the south of Abu Tartur Plateau comprises enclosed drainage basins that were occupied by ephemeral lakes in the Quaternary. The playa-sabkha eposits ...
DOI: 10.1016/J.JAFREARSCI.2009.11.009 Corpus ID: 128486527; Geochemistry and microprobe investigations of Abu Tartur REE-bearing phosphorite, Western Desert, Egypt @article{Awadalla2010GeochemistryAM, title={Geochemistry and microprobe investigations of Abu Tartur REE-bearing phosphorite, Western Desert, …
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 …
For example the glauconite layers at Abu Tartur plateau (Western Egyptian desert) were interpreted as having formed in a restricted marine environment (El Ayyat, 2015). Chilinger (1955) suggested ...
The Abu Tartur phosphate deposit is the biggest of its kind in the Middle East [ 3]. Phosphate ore ... [email protected] 1 Nuclear Materials Authority, El Maddi, P.O. Box 530 ...
Abu Tartur Plateau area is mainly composed of a variety of sedimentary rocks ranging from Pre-Maastrichtian to Quaternary sediments. The sedimentary succession of the plateau particularly in the ...
The present Kerogen in Abu Tartur is of type II or type II+ III and the shale oil resource is about 1.2 billion bbls. In Sinai the oil shale deposits present in Gebel El Maghara area and Abu Zinema.
DOI: 10.1007/s41207-023-00445-4 Corpus ID: 266945745; Glauconite facies developed sequentially in the Abu Tartur Plateau (Egypt) during the Late Cretaceous @article{Ayyat2024GlauconiteFD, title={Glauconite facies developed sequentially in the Abu Tartur Plateau (Egypt) during the Late Cretaceous}, author={Abdalla M. El Ayyat …
C'est pourquoi nous proposons, dans une perspective de rgénération des steppes, de contribuer à l'enrichissement des rserves minérales des sols, par une fertilisation phosphatée au moyen d'une roche phosphatée de la mine de Djebel Onk ( …
Generalised Jebel Abyad stratigraphy compared to the Abu Tartur Phosphate deposit, Egypt Abu Tartur Phosphate Deposit (adapted from T. Schroter) Jebel Abyad Basin (generalised stratigraphy, based on field observations) G. Hurst and A. Linehan - February 2014 (limestones and dolostones) (shale with carbonate and silty …
Bibliographie de la préhistoire et de la protohistoire de l'Égypte et du Nord du Soudan Bibliography of the Prehistory and the Early Dynastic period of Egypt and northern Sudan. ... New archaeological evidence from Abu Tartur, Western Desert of Egypt. In In. Nyame Akuma 61. Pages Pages. 10-16. Sites Sites Région Region; Abu Tartur: Désert ...
Abu Tartur phosphorites are considered as highest-grade in Egypt (attain average of 25 wt.% P 2 O 5) and considered as one of the most important factors in development in Abu Tartur area. Preliminary exploration of the mining area (about 108 km 2 ) led to an estimation of 987 million tons as economic reserve with an average of P 2 …
Phosphorites in Egypt occur in the Eastern Desert, the Nile Valley and the Western Desert at Abu Tartur area and present in Duwi Formation as a part of the Middle Eastern to North African phosphogenic province of Late Cretaceous to Paleogene age (Campanian-Maastrichtian). The Maghrabi-Liffiya phosphorite sector is considered as the most …
2. SUBSIDENCE MONITORING AT ABU-TARTUR AREA The phosphate deposit at Abu-Tartur area, located at 150m below the ground surface is exploited by longwall mining method. Three panels, 1200m long and 150m wide, have been developed and only one panel is being mined now by retreat mining method. The layout of the working panel is …
The current phosphate mine wastes at El-Liffiya-Maghrabi sector, Abu-Tartur plateau, are represented by low-grade phosphorites along with overburden of glauconite and shale deposits. Although ...
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 …
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Optimum conditions of bioleaching of Abu Tartur phosphate ore are 3 days incubation period, modified PVK medium is the best medium for dissolution of Abu Tartur phosphate ore, 0.1x 1029 colony ...
Abstract. This work aimed for pyrite separation from Abu Tartur black shale as a source of sulfur to be an added economic value of Abu Tartur area. The considered samples in the present work were collected from a core drilled in Abu Tartur plateau representing the pyrite-rich black shale of the U. Cretaceous age.
Download scientific diagram | Chemical composition maps of a phosphatic mudclast from the lower member in Abu-Tartur area measured by EPMA. Ca, P, F, S, Na, Mg, and Mn are homogeneously ...
Abstract. Phosphate rock (PR) is an important mineral resource with numerous uses and applications in agriculture and the environment. PR is used in the …
The black shales of the Upper Cretaceous to lower Palaeocene in Egypt occur in an east-west trending belt from Quseir-Safaga in the east along the Red Sea to the Kharga-Dakhla land-stretch toward the west, passing through the Nile Valley (Fig. 1; see also Baioumy and Tada, 2005, El-Azabi and Farouk, 2010 for detailed maps).The …
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 …
The Abu Tartur phosphate deposit is characterized by the presence of ferriferous dolomite, containing 60 to 70% of MgO, which allows the use of magnetic separation to reduce the MgO content of certain fractions. ... Les minerais de phosphate de la Turquie et les recherches faites en vue de leur valorisation. Seminar on beneficiation …
This work aimed for pyrite separation from Abu Tartur black shale as a source of sulfur to be an added economic value of Abu Tartur area. The considered samples in the present work were collected from a core drilled in Abu Tartur plateau representing the pyrite-rich black shale of the U. Cretaceous age. Sample characterization was carried out using …
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. This ...
The Abu Tartur phosphate deposit is characterized by the presence of ferriferous dolomite, containing 60 to 70% of MgO, which allows the use of magnetic separation to reduce the MgO content of certain fractions. ... O., 1975. Les minerais de phosphate de la Turquie et les recherches faites en vue de leur valorisation.... Blazy, P., …
The Abu Tartur phosphate mine occurs in the Dakhla basin. It is located about 650 km southwest of Cairo and 50 km west of Kharga Oasis in the Western Desert of Egypt (25°25′34″N and 30°05′08″E; Fig. 1). The Western Desert covers more than 65% of the whole Egypt extending from the Nile Valley to the Libyan border in the west.
Abu Tartur, New Valley, drill core ; thin section, plane light. Phosphorite à grain fin dont les particules très pigmentées (pyrite, matière organique) sont cimentées par de la dolomite. Abu Tartur, New Valley, sondage, lame mince, LN. 4. Phosphorite with phosphatic peloids (greyish) pigmented by pyrite (white).
En effet, ces zones sont riches en phosphates solubles ou insolubles (en suspension). La quantité de PO 4 varie avec la profondeur et la température. Mécanismes de genèse. Former une roche phosphatée demande une concentration importante en phosphore, ce qui est possible en milieu biologique, comme l'eau de mer.
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 ...
