Nummulite biostratigraphy of the Eocene succession in the

Aug 01, 2016The Bahariya Depression is located near the central part of the Western Desert of Egypt where it shows elliptical geometry surrounded by a carbonate plateau mainly formed of Eocene rock units in its northern part.The Eocene stratigraphy, especially of the Middle to Upper Eocene formations in the Bahariya region has been a matter of dispute (Issawi et al., 2009).

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J. Serra-Kiel's research works University of Barcelona

In the northern part of the Bahariya Depression (Western Desert, Egypt) the Eocene carbonate succession,unconformably overlying the Cretaceous deposits, consists of

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Ironstone deposits hosted in Eocene carbonates from

Nov 01, 2015Outcrop observation of the Eocene formations in the northern part of the Bahariya Depression shows that the carbonate rock units were totally replaced and/or cemented by iron-bearing minerals and/or quartz in the vicinity of major faults (Table 1; Fig. 1, Fig. 2, Fig. 3). Most descriptions and interpretations in this stone deal with the Naqb

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Cited by: 4

Nummulite biostratigraphy of the Eocene succession in the

13 In the northern part of the Bahariya Depression (Western Desert, Egypt) the 14 Eocene carbonate succession, unconformably overlying the Cretaceous deposits, 15 consists of three main stratigraphic units; the Naqb, Qazzun and El Hamra formations.

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Structural setting and tectonic evolution of the Bahariya

In the northern part of the Bahariya Depression (Western Desert, Egypt) the Eocene carbonate succession, unconformably overlying the Cretaceous deposits, consists of

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Mineralogical and geochemical investigations of the Middle

sition and geochemical characteristics of the different Middle Eocene marine ironstone facies of El Bahariya Depression, Western Desert, Egypt. It also sheds light on the syn- and post-Middle Eocene subaerial weathering and subsurface alteration events that affected the original marine ironstones. 2. Geologic setting El Bahariya Depression is a

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Facies analysis and palaeoclimatic significance of

extreme north-eastern corner of the Bahariya Depression ca 25 km west of the Bahariya-Cairo road (Fig. 2). The Ghorabi mine is a plateau-like structure and is completely separated from the surrounding lower to middle Eocene carbonate scarp by deep structurally controlled valleys. To the north, the structurally controlled valley

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Journal of African Earth Sciences

In the northern part of the Bahariya Depression (Western Desert, Egypt) the Eocene carbonate succes-sion, unconformably overlying the Cretaceous deposits, consists of three main stratigraphic units; the Naqb, Qazzun and El Hamra formations. The Eocene carbonates are relevant as they locally host a large economic iron mineralization.

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Stratigraphic Setting and Mineralogical Study on the

northeastern corner of the Bahariya Depression at about 25km west of El Bahariya-Cairo road (Fig. 1). It is bounded by the following coordinates: 29o 00' 00'' to 29o 04' E, and 28o 29' 30" to 28o 30' 30" N. The area is a topographically high feature, attaining about 2.3 sq. km and it is completely separated from the surrounding Eocene carbonate

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Structural setting and tectonic evolution of the Bahariya

The margins of the Bahariya Swell were onlapped by this chalk and by Tertiary sediments. Inversion continued in post-Middle Eocene time as the Middle Eocene rocks were tilted in the flanks of the Bahariya Swell and deformed by small right-stepped en echelon folds and left-stepped en echelon normal faults.

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middle eocene carbonate in bahariya depression

OCCURRENCE OF BARITE MINERALIZATION IN Bahariya depression, Western Desert of Egypt. The barite veins that trend in different directions are rocks are represented by the Naqb Formation which belongs to the Middle Eocene (Said, 1962) and comprises gray and pink limestone and by the Qalamoun Formation Bahariya Oasis depression must first be studied.

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Mineralogical and geochemical investigations of the Middle

Keywords: Mineralogy Geochemistry Ironstone El Bahariya Depression Egypt The Middle Eocene ironstone succession is located in the northeastern part of El Bahariya Depression, Western Desert, Egypt. This succession is subdivided into lower and upper

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Stratigraphic Setting and Mineralogical Study on the

northeastern corner of the Bahariya Depression at about 25km west of El Bahariya-Cairo road (Fig. 1). It is bounded by the following coordinates: 29o 00' 00'' to 29o 04' E, and 28o 29' 30" to 28o 30' 30" N. The area is a topographically high feature, attaining about 2.3 sq. km and it is completely separated from the surrounding Eocene carbonate

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Identification of minerals and organic materials in Middle

The Middle Eocene ironstones of the Bahariya Depression consist of four iron ore types: manganiferous mud-ironstone, fossiliferous ironstone, stromatolitic ironstone and nummulitic–ooidal–oncoidal ironstone. The upper surfaces of these sequences were

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Facies analysis and palaeoclimatic significance of

Lower and middle Eocene ironstone sequences of the Naqb and Qazzun formations from the north‐east Bahariya Depression, Western Desert, Egypt, represent a proxy for early Palaeogene climate and sea‐level changes. These sequences represent the only Palaeogene economic ooidal ironstone record of the Southern Tethys.

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Journal of African Earth Sciences

In the northern part of the Bahariya Depression (Western Desert, Egypt) the Eocene carbonate succes-sion, unconformably overlying the Cretaceous deposits, consists of three main stratigraphic units; the Naqb, Qazzun and El Hamra formations. The Eocene carbonates are relevant as they locally host a large economic iron mineralization.

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Mid-Eocene (Bartonian) larger benthic foraminifera from

Mid-Eocene (Bartonian) larger benthic foraminifera from southeastern Turkey and northeastern Egypt: New evidence for the palaeobiogeography of the Tethyan carbonate platforms. Published on May 1, 2018 in Journal of African Earth Sciences 1.633

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Mineral evolution and processes of ferruginous

Peritidal ferruginous microbialites form the main bulk of the Middle Eocene ironstone deposits of the Bahariya Depression, Western Desert, Egypt. They include ferruginous stromatolites and microbially coated grains (ferruginous oncoids and ooids). Their internal structures reveal repeated cycles of microbial and Fe oxyhydroxide laminae.

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Bahariya-Formation

The ironstones occur as thin crusts within Cenomanian clastic rocks (Bahariya Formation) and as big ore bodies at three mine areas, associated to Eocene carbonate units. Analysis of the two ironstone types was carried out by means of field, petrographic, mineralogical and

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M. A. Khalifa Editorial Board Scientific Research

Khalifa, M. A. ; Abu El Ghar, Al Aasam, I. 2014. Linking carbonate cyclicity in platforms to depositional and diagenetic overprints: an example from the Lower Eocene Drunka Formation west of Assiut-Minia stretch Western Desert, Egypt. Arabian Journal of Geosciences, Vol. 7, pp. 5159- 5170. ISSN: 1866-7511 (Print) 1866-7538 (Online).

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Subvolcanic and hydrovolcanic activities in the Bahariya

Bahariya depression: Stratigraphic profile. Iron ore deposits/mines El Ghorabi, El Harra and El Gedida. Iron ores at Gebel Ghorabi, occurring mainly in lower Eocene limestone, include an oolitic type consisting essentially of goethite, a vesicular type containing hematite with pyrolusite and psilomelane, a hard, dark brown type consisting of goethite and hematite with some

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Microbially-mediated ooidal Ironstones, El Bahariya

Microbially-mediated ooidal Ironstones, El Bahariya Depression, Egypt: Amazon: Walid Salama: Libros en idiomas extranjeros

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el gedida iron ore bahariya oasis mining panies in ghana

El Gedida Iron Ore Bahariya Oasis haagdeko.de. El-gedida area s1 is located in the northeastern plateau of el-bahariya depressionhe center of el-gedida area lies approximately at latitude 28 27 n and longitude 29 10 e el-gedida iron ore deposit is considered to be the largest and the richest iron ore deposit of the bahariya oasis located in

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Early–Middle Eocene Nummulites and isotope stratigraphy

A Lower Middle Eocene sedimentary succession, exposed at Minia, Ash- Shurafa, and Beni Hassan Ash-shuruq Sections, in the Nile valley region; and at Garra El Hamra Section in Bahariya Oasis, western Desert, Egypt (text-fig. 1), yielded species of Nummulites juxtaposed to rocks from which 18O and 13C stable isotope analyses were possible.

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Microbially-mediated ooidal Ironstones, El Bahariya

Microbially-mediated ooidal Ironstones, El Bahariya Depression, Egypt: Amazon: Walid Salama: Libros en idiomas extranjeros

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格式: Tapa blanda

Mid-Eocene (Bartonian) larger benthic foraminifera from

Mid-Eocene (Bartonian) larger benthic foraminifera from southeastern Turkey and northeastern Egypt: New evidence for the palaeobiogeography of the Tethyan carbonate platforms. Published on May 1, 2018 in Journal of African Earth Sciences 1.633

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Bahariya-Formation

The ironstones occur as thin crusts within Cenomanian clastic rocks (Bahariya Formation) and as big ore bodies at three mine areas, associated to Eocene carbonate units. Analysis of the two ironstone types was carried out by means of field, petrographic, mineralogical and

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Microbially-mediated ooidal Ironstones, El Bahariya

Buy Microbially-mediated ooidal Ironstones, El Bahariya Depression, Egypt: Sedimentology, Mineralogy and Geochemistry by online on Amazon.ae at best prices. Fast and free shipping free returns cash on delivery available on eligible purchase.

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Identification of the mineralogy and organic materials of

first one is the Middle Eocene ironstone deposits of the Bahariya Depression, which are located in the northern part of the Western Desert. The second is the Cretaceous ironstone deposits, which are located in the Eastern part of Aswan area. The Bahariya ironstones are subdivided into two marine shallowing-upward sequences separated by

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Frontiers Concentric Structures and Hydrothermal Venting

Oct 18, 2019In fact, cross stratigraphy observations indicate that the Bahariya fault experienced three main phases of activity occurring respectively during the Late Cretaceous (88–70 Ma), Middle-Late Eocene (45–33 Ma) and Middle-Late Miocene (16–5.3 Ma) (Sehim, 1993; Moustafa et al., 2003).

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M. A. Khalifa Editorial Board Scientific Research

Khalifa, M. A. ; Abu El Ghar, Al Aasam, I. 2014. Linking carbonate cyclicity in platforms to depositional and diagenetic overprints: an example from the Lower Eocene Drunka Formation west of Assiut-Minia stretch Western Desert, Egypt. Arabian Journal of Geosciences, Vol. 7, pp. 5159- 5170. ISSN: 1866-7511 (Print) 1866-7538 (Online).

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OCCURRENCE OF BARITE MINERALIZATION IN BAHARIYA

rocks are represented by the Naqb Formation which belongs to the Middle Eocene (Said, 1962) and comprises gray and pink limestone and by the Qalamoun Formation which belongs to the Lower Eocene (El Shazly, 1962). The Qalamoun Formation is deposited on the Bahariya Formation and El Haufhuf Formation to the North of El Bahariya depression (Fig.1).

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Microbially-mediated ooidal Ironstones, El Bahariya

Jun 14, 2012Buy Microbially-mediated ooidal Ironstones, El Bahariya Depression, Egypt: Sedimentology, Mineralogy and Geochemistry on Amazon

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Diagenetic Evolution of the Middle Eocene Carbonates

the Middle Eocene carbonates in this area. The present study is an attempt to shed more light on the diagenetic history of the Middle Eocene Mokattam Formation exposed in the Cairo-Suez district. A special emphasis is put on the dolomitization processes which represent the most dominant diagenetic effect. Geologic Setting

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Researcher 2018;10(4) sciencepub.net/researcher

the carbonate after their deposition in the shallow depression. The economic iron deposits of El Bahariya Oasis are confined to Karst features, and it is suggested that they were formed through lateritization processes during the senile stage of a post- Eocene

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Identification of minerals and organic materials in Middle

Identification of minerals and organic materials in Middle Eocene ironstones from the Bahariya Depression in the Western Desert of Egypt by means of micro-Raman spectroscopy Ciobotă, Valerian Salama, Walid

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