Duwi formation
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]. WebThe Upper Cretaceous rocks are represented by Taref, Duwi, and Dakhla formations while the Tertiary rock units are represented by Tarawan, Thebes, Nakheil, Um Mahara, Um Gheig and Shagra formations [29] . Quaternary and Wadi deposits are mainly pebbles of sand, detritus, cobbles and little boulders filling the main wadis.
Duwi formation
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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... WebOct 1, 1997 · The sedimentary succession here can be divided into prerift (pre-Miocene) and synrift (Miocene and post-Miocene) megasequences. The prerift section has been penetrated in only a few wells drilled on the western (Egyptian) side of the Red Sea, whereas the synrift section is known on both the Egyptian and the Saudi sides of the Red Sea.
WebThe Duwi Formation in the Western Desert of Egypt can be classified into three units: lower, middle, and upper, based on their depositional conditions [ 14 ]. The black shale occurs in the middle unit. This unit consists of shales intercalated with phosphate, siltstone, carbonates, glauconite, and gypsum beds. 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 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. 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.
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 …
WebApr 7, 2024 · How to say Dhuwi in English? Pronunciation of Dhuwi with 1 audio pronunciation and more for Dhuwi. derry township ordinancesThe 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 derry township pa local income taxWebDu Fuwei (598?-624), known during service to Tang dynasty as Li Fuwei (李伏威), was an agrarian leader who rose against the rule of Emperor Yang of Sui at the end of the Chinese … chrysanthe devWebMay 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. chrysanth dental practiceWebEmail: 1 , [email protected],[email protected] Abstrak. Penelitian ini adalah penelitian kuantitatif desktiptif dan kasual yang bertujuan untuk mengetahui ada tidaknya pengaruh lingkungan keluarga, kepribadian, dan motivasi berwirausaha terhadap minat berwirausaha siswa kelas XII Bisnis Daring dan Pemasaran SMK Negeri 1 Makassar. chrysanthellum indicum creamWebThe Quseir, Duwi, Dakhla and Esna Formations 220370 m - thick of inter bedded shales, sandstones and limestones is overlain this Nubian Sandstone (Abd El Razik 1967, Issawi et al. 1969). The Thebes Formation consists of 130200 m thick of bedded limestones and cherty - limestones represent chrysanthellum indicum flower waterWebThe 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. derry township occupation tax