Duwi formation
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 … 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 …
Duwi formation
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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. WebSep 1, 2024 · The Duwi Formation in the study area overlies the fluvial shale sequence of the Qusseir Formation and is overlain by deeper marine shales and marls of the Dakhla Formation. Thus, deposition of the Duwi Formation represents the initial stage of the Late Cretaceous marine transgression in Egypt.
WebDuwi Formation and Sudr Chalk were studied lithostratigraphically, petrography, mineralogy, geochemistry, radioactivity and tectonic setting. On the other hand, the major and trace elements were focused on the studied rock units. The Upper Cretaceous exposures in southeastern Galala represented by Carbonate – ... WebThe formation consists of dark grey-brown to black, usually non-calcareous, carbonaceous, occasionally fissile claystone. It is characterized by very high radioactivity (often above 100 API units) which is a function of organic carbon content. It has anomalously low velocity, density and high resistivity. Minor limestone streaks and concretions ...
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... WebNov 27, 2013 · The Duwi Formation represents the first onset of fully marine conditions in Egypt accompanying the major late Cretaceous marine transgression of this region. With …
WebIn the Nile Valley, the Duwi Formation in the Qena-Idfu region was subdivided into three members. They are, from top to bottom, the Adayma, Sebaiya, and Mahamid Phosphate …
WebE. A. Abou El-Anwar Published 2024 Geology Carbonates and Evaporites The Lower phosphatic member of the least Upper Cretaceous (Campanian) Duwi Formation, south Esna, at the western side of the Nile Valley is important rock unit for its relatively high enrichment of heavy metals and U content. siglec7 antibodyWebOct 1, 2024 · The Duwi Formation contains many phosphatic beds with abundant vertebrate remains and bivalve rich carbonates. The latter form biostromal structures and were reported from many parts of southern Egypt. Geochemistry of the organic matter-rich shales was also investigated (e.g., El Nady and Hammad, 2015; El-Shafeiy et al., 2016 ). the prince podcastWebDec 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 Coast. Download : Download high-res image (148KB) Download : Download full-size image Fig. 1. Location map of the study Area. the prince park tower tokyo tripadvisorWebDec 8, 2024 · The Duwi formation first reached the early mature stage in the S-7 well at 20.1 Ma and in the ARS-3 well at 15.47 Ma (Table 5 ). It reached the mid mature stage in the S-7 and ARS-1 wells at 15.4 and 15.12 Ma, respectively, while it reached that stage in the ARS-3 well at 4.05 Ma. siglec-8 antibodyWebDec 13, 2024 · Duwi Formation was defined by Youssef ( 1957 ). It overlies Quseir Formation and underlies Dakhla Formation. It consists of a succession of phosphorites interbedded with sandstones, shales, and marlsand capped by about 15–30-cm-thick conglomeratic band (Plate 1 c, d). sigle chorusWebApr 7, 2024 · How to say Dhuwi in English? Pronunciation of Dhuwi with 1 audio pronunciation and more for Dhuwi. the princeport road houseWebSep 1, 2024 · The black shales from the uppermost member of the Duwi Formation in the Qusseir area is conformably overlain by the Qusseir variegated shale and underlain by the Dakhla shale. Detailed mineralogical and geochemical characteristics were examined using several techniques, including X-ray diffractometry, scanning electron… View on Springer the prince park tower tokyo 朝食