Duwi formation

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August undefined, 2024

WebMarsella Duwi Septyani5 Published online: 2 Agustus 2024 ABSTRACT ... The formation of school activities aimed at familiarizing students with the instruments of their area. Music instruments and folk melodies are also being preserved in an endeavour to conserve art shows as early as feasible, in the second meeting, the schedule for two-hour- ... WebMar 1, 2024 · Phosphorite deposits in Egypt, known as the Duwi Formation, are a part of the Middle East to North Africa phosphogenic province of Late Cretaceous to Paleogene age. They are found in: the Nile Valley, between Idfu and Wadi Qena, the Red Sea Coast, between Safaga and Quseir, Abu Tartur plateau in Western Desert and Sinai.

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WebApr 14, 2024 · The Duwi Formation in the study area conformably overlies Qusseir Formation and underlies Dakhla Formation; this succession is capped with Esna and … 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. 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 canon imagerunner 2420l driver for windows 10

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WebPrior 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 ... The basement consists of Precambrian rocks of the Arabian-Nubian Shield. Gneisses, volcanics and metasediments are intruded by granites, granodiorites and a suite of dolerite dykes. These rocks contain shear zones, such as the Rehba Shear Zone of western Sinai, that are interpreted to have partly controlled the orientation and location of rift structures. canon imagerunner 2204 driver free downloadWebof 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, canon imagerunner 2520i driver download

"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 … " - Duwi formation

Duwi formation

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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. WebThe younger granites and Duwi Formation have the highest radiometric values. The lowest values exist over ophiolitic metagabbro, basic metavolcanics, metasediments, serpentinites, and Umm Gheig Formation.

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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 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 …

WebApr 7, 2024 · How to say Dhuwi in English? Pronunciation of Dhuwi with 1 audio pronunciation and more for Dhuwi. WebGeochemical 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...

WebThe Duwi Formation conformably overlies Qusseir Formation and conformably underlies the Dakhla Formation, Tarawan Formation and Esna Formation. This succession in the study area capped with Thebes Formation and eroded along wadis which are filled with Quaternary gravels, sands and shale. 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 …

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WebDuwi Formation [12] At its type locality of the Quseir Region, the Duwi Formation is underlain by the Quseir Formation and overlain by the Maastrichtian part of the Dakhla Formation. In General, several authors considered the Duwi Formation comprises the best and pronounced mineable phosphates at the Red Sea Regio n [15]. canon imagerunner 2420l software for pcWebDec 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 ). flagship deviceWebOct 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 … flagship device meaningWeb@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 … canon image runner 2520 driver downloadWebMar 1, 2024 · Duwi Formation phosphates were subjected to low chemical weathering. • Trace, REE elements and U may have occurred during diagenesis. • Trace and toxic … canon imagerunner 2520 driver download freeWebJan 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 … flagship development meaningWebJun 19, 2024 · Gebel Duwi is a conspicuous mountain with a sharp ridge, which is located in the center of the study area (Fig. 5 ). The Upper Cretaceous–Lower Eocene sedimentary rocks crop out there, and, particularly, this is the type locality of the Campanian–Maastrichtian Duwi Formation including phosphate lenses. canon imagerunner 2420 scanner software