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Duwi formation

Webof the Duwi Formation at Gabal Duwi Range. This succession is well exposed at the type section which is easily accessible with its contact with Lower Quseir Formation and the Upper Dakhla Formation. The entire interval includes the transition from the Coniacian stage to the Campanian stage of the Duwi Formation. Each marl, shale,

Upper Cretaceous Duwi Formation shale’s oil

WebOct 13, 2024 · The eU map (Fig. 5) classified into three levels: the first level has range of 4.5 to 34 ppm and associated with wadi deposits and the Duwi Formation. The equivalent uranium (eU) content reaches 34 ppm as the maximum value over the Duwi Formation, and diminishes to 0.4 ppm as the minimum value over conglomerates with a mean of 4.5 ppm. WebDuwi Formation overlies the Qussier Formation in both section with more or less similarity between the two sections. In Nile Valley, the Duwi Formation starts with thick yellow to … probability one shot https://needle-leafwedge.com

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WebMar 9, 2024 · The Duwi Formation is the phosphate bearing rock unit that stratigraphically located at the top of the Quseir Formation and underlies the Dakhla Formation. It was first … WebMar 1, 2024 · Duwi Formation phosphates were subjected to low chemical weathering. • Trace, REE elements and U may have occurred during diagenesis. • Trace and toxic … WebMay 1, 2012 · The main purpose of this paper is an attempt to evaluate the source rock potential of the Duwi Formation in the southern Gulf of Suez using well log data. Yousef (1957) introduced the Duwi Formation (Campanian) to describe the phosphate-bearing unit, which consists of clays, sandstones and limestones of shallow marine conditions. probability one pager

Application of well log analysis for source rock evaluation in the Duwi …

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Duwi formation

Composition and origin of black shales from Quseir area, Red Sea, …

Web@article{osti_6393739, title = {Composition and origin of black shales from Quseir area, Red Sea, Egypt}, author = {El-Kammar, A M and Darwish, M and Philip, G and El-Kammar, M M}, abstractNote = {This paper reports on black shales occurring within the Dakhla and Duwi Formations in the Quseir area. They are rich in organic matter. They can be described as … The Duwi Formation represents the first onset of fully marine conditions in Egypt accompanying the major late Cretaceous marine transgression of this region. With few exceptions, these sediments were deposited in shallow epeiric seas, which flanked the southern margin of the Tethyan trough. See more Detailed stratigraphic and petrographic studies have revealed that the sequences of Duwi Formation in the Western Desert area can be divided … See more Considering the vertical evolution of the recognized facies in the study area, the stratigraphic sections show a hierarchical organization of 20 rhythmic bedding (cycles) defined by … See more The mechanisms thought to result in the formation of shallowing–upward cycles have been discussed and reviewed in numerous studies … See more

Duwi formation

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WebApr 7, 2024 · How to say Dhuwi in English? Pronunciation of Dhuwi with 1 audio pronunciation and more for Dhuwi. Web本文对新疆巴里坤县膨润土矿区的哈尔加乌组安山岩进行了岩石化学、稀土元素及微量元素特征等研究以期认识新疆巴里坤县膨润土矿区晚古生代安山岩的岩浆来源、演化及其成因构造环境。结果显示,哈尔加乌组安山岩属于中基性钙碱性系列岩石,贫Fe、富Na,钙质相对较贫。富Sr、Rb、Ba、Zr、Th及Hf等 ...

WebApr 1, 2024 · Duwi Formation has a great geologic and economic importance in the Eastern Desert; it contains many economic deposits, such as phosphorites. The occurrence of black shale intercalated with, underlined and capped the phosphorite mined bed gives these deposits special importance owing to their enrichment with organic matter and trace … WebDec 1, 2024 · Twelve oil shale samples were collected from Duwi Formation from four mines (Mohamed Rabah, Um Huetate, El Nakheil and El Beida phosphate mines) at Safaga–Quseir area, Red Sea Coast, Egypt. The weathering impressions on the samples were brushed off, deried at 60oc and powdered to less than 63 µm using sieving analysis.

WebJan 1, 2013 · The Duwi Formation has been divided into several meter-scale cycles of three types (gradual, non-gradual, and truncated). This represents the higher frequency sea … WebOct 30, 2024 · The Duwi Formation is unconformably overlying the Quseir shale member with an undulating surface where the non-oxidized phosphorite rocks were deposited in a reducing environment and changed to a yellowish-brown color by subsequent chemical oxidation processes [13,14]. The geochemistry of phosphorites and their main mineral …

WebDec 1, 2024 · The Duwi Formation is spread over several hundreds of kilometers, from the Western Desert up to the River Nile Valley, and in the Eastern Desert up to the Red Sea …

WebDec 14, 2024 · This study evaluates the palynologic, organic, inorganic, and petrographic properties of organic-rich black shale (Mahamid Mine) in the El Sebaiya area, Nile Valley, Egypt. Black shale is composed of quartz (50%), calcite (10%), kaolinite (25%) and montmorillonite (15%). Organic and inorganic analyses revealed that this shale was … probability on excel with z scoreWebTALLERES ESNA S.A., empresa riojana especializada en la fabricacion de Prensas Excentricas de cuello de cisne, estara presente en la Bienal para mostrar una amplia representacion de su gama de fabric probability oneWebDec 1, 2015 · The Duwi formation is represented by two shale samples that have a hydrogen index ranging from 337 to 357 mg/g and oxygen index values ranging from 110 to 145 mg/g ( Table 1) indicating that type III/II of kerogen generates mixed oil and gas ( Fig. 4 ). probability one standard deviationWebGeochemical data show that samples from the Duwi Formation are Type-II and Type-II/III kerogens. Based on low HI values and low abundance of AOM, palynofacies association-A samples indicate... probability on excelWebDUAFI (Dhaka University Alumni Forum Inc) is a voluntary, nonprofit and nonpolitical forum of Graduates holding Bachelor/Post Graduate degrees from the Dhaka University Main … probability on graphing calculatorWebJan 26, 2024 · The Duwi Formation is one of the important stratigraphic units in the geology of the Cretaceous Epoch in Egypt. It is considered a marker unit of the Central and Southern Egypt. probability onlineWebPrior to the discovery of MUVP 477, abelisaurids were definitively represented in Egypt, and northeastern Africa more generally, only by an isolated tooth from the uppermost Cretaceous (Campanian–Maastrichtian) Duwi Formation of the southern Nile Valley [9,10]. The new vertebra, therefore, extends the stratigraphic record of Abelisauridae ... probability online activity