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The heavy minerals in the coastal sand dunes are higher than that in the beach of EL-Burg area. Higher density minerals are increase in sand dunes, while decrease in the beach, the lower density minerals increase in beaches and decrease in coastal sand dunes. Keywords: Heavy minerals – Sand dunes – Shoreline – Nile Delta.
heavy minerals, and the diluted ore, which is lighter in colour and contains up to 40 per cent heavy constituents. The economic value of the black sands was studied by Higazy and Naguib (12), Kamel et al. (13), and El-Shazly et al.(9). Field and mineralogical studies have shown that the black sands North of the Nile Delta were derived from the
Nov 07, 2003· Frihy O, Komar PD (1993) Long-term shoreline changes and the concentration of heavy minerals in beach sands of the Nile Delta, Egypt. Mar Geol 115:253–261. Article Google Scholar Khafagy AA, Naffaa MG, Fanos AM, Dean RG (1992) Near shore coastal changes along the Nile Delta …
distribution of a heavy mineral in the Nile Delta coastal sands appear to depend on: (1) range of grain size fractions in each sample, (2) relative availability of heavy mineral in each size grade of the sample, (3) specific gravity of minerals comprising these sands, and (4) some other unknown. factor or factors. ...
This paper is concerned with the study of mineralogy and engineering characteristics of soil materials derived from the eastern part of Nile Delta. The clay minerals of the studied soil by using X- ray diffraction are mainly illite (average 72.6 %) and kaolinite (average 2.6 %), expandable portion in illite-smectite mixed layer (average 7 %).
Deltaic detrital sediments of the Nile Delta are mainly composed of quartz-feldspars, with a distinctive presence of heavy minerals of an igneous origin (El-Kammar et al., 2011;El Gamal & Saleh ...
Abstract Egypt's black sand deposits are located in the Nile Delta between Alexandria and Rosetta. They contain substantial reserves of heavy-mineral sands. This paper discusses the geologic history of the Nile Valley and the possible source of heavy minerals. It describes Egypt's development of these deposits in the 1950s and 1960s and provides mineralogical and chemical analyses of these ...
Heavy minerals and the evolution of the modern Nile Quaternary Research 6 425 444 CrossRef Google Scholar Heinzelin, J.de ( 1968 ). Geological history of the Nile Valley in Nubia Wendorf, F.
the light minerals collected at 100 m distances of the profiles under investigation. Key words: Nile Delta, beach erosion, beach accretion, natural radioactivity, heavy minerals. INTRODUCTION Coasts are dynamic systems, undergoing adjustments of form and process at different time and space scales in
port of the heavy mineral plays s an effective role in concentration and distribution of these mineral alons g the coast. Previous studies of the mineralogy of the Nile Delta coastal sediments include those o SHUKRf (1950)I NAKHL, (1958)A MESHRE, (1962)F ANWA, anRd EL-BOUSIELY (1970) COASTA, EROSIOL STUDIEN (1973)S FRIH, (1975)Y RAS, -
from the Nile delta. This records an incorporation of sediments supplied locally from coastal and inshore erosion, and also from rivers and by wind. In contrast, proportions of transparent heavy minerals in the sand fractions on continental shelves off the Nile delta, Sinai, Gaza and Israel more closely approximate those of the Nile delta ...
Apr 01, 1989· Significant heavy-mineral deposition has occurred along the Delta's entire coast, including the Nile's distributaries, lakes, offshore areas, and within the Delta because of a con- stant supply of minerals, a Delta growth rate of 3.7 m yr~1 (pre-Aswan High Dam), and a growth period of several thousand years.
of Holocene sedimentsfrom the Nile Delta. Journal of Coastal Research, 11(2),415-431.FortLauderdale (Florida), ISSN 0749-0208. Clay-sizefractions of Holocene (to> 7,500 years BP) core samples (n = 173) from lagoonal/marsh, delta front and prodelta facies in the northeast sector of the Nile delta were analyzed for 23 elements. The
Jan 04, 2006· Frihy OE, Debes E, El Sayed W (2003) Processes reshaping the Nile delta promontories of Egypt: pre- and post protection. Geomorphology 53:263–279. Article Google Scholar Frihy OE, Komar PD (1993) Long-term shoreline changes and the concentration of heavy minerals in beach sands of the Nile delta, Egypt. Mar Geol 115:253–261
Apr 15, 2013· Nile River. The Nile is a major north-flowing river in northeastern Africa, generally regarded as the longest river in the world. It is 6,650 km (4,130 miles) long. The Nile is an "international" river as its water resources are shared by eleven countries, namely, Tanzania, Uganda, Rwanda, Burundi, Democratic Republic of the Congo, Kenya ...
minerals, separating them from lighter coarse-grained minerals. Extensive deposits of black sand are found on the Mediterranean beaches adjacent to the mouths of the Rosetta and Damietta promontories of the Nile Delta. These promontories of higher heavy mineral contents coincide with sites of intensive coastal erosion. FRIHY and KOMAR (1991) have
Long-term shoreline changes and the concentration of heavy minerals in beach sands of the Nile Delta, Egypt Frihy, O. E.; Komar, P. D. Abstract. Publication: Marine Geology. Pub Date: December 1993 DOI: 10.1016/0025-3227(93)90054-Y Bibcode: 1993MGeol.115..253F full text sources. Publisher | ...
Heavy metals contamination of a Mediterranean Coastal Ecosystem, Eastern Nile Delta, Egypt Introduction Heavy metals are considered among the most serious contaminants of aquatic ecosystems, due to their high potential to enter and accumulate in food …
The size distribution of a heavy mineral in the Nile Delta coastal sands appear to depend on: (1) range of grain size fractions in each sample, (2) relative availability of heavy mineral in each size grade of the sample, (3) specific gravity of minerals comprising these …
Variations of heavy minerals in radiocarbon-dated cores collected in this delta 1, the Nile's major depocentre 2, correlate closely with oscillations in African palaeoclimate determined by other ...
The study of the Nile Delta sedimentary succession provides quantitative information on a process that we must understand and consider in full before attempting provenance interpretation of ancient clastic wedges. Petrographic and heavy-mineral data on partly lithified sand, silt, and mud samples cored from the up to 8.5 km-thick post-Eocene succession of the offshore Nile Delta document ...
The Nile Delta coast is a dynamic sedimentary environment experiencing erosion, transport and re-deposition of sand along the coast. The aim of this study was to investigate the effectiveness of using an integrated approach of natural radioactivity of coastal sediments, heavy mineral distribution and grain size information to differentiate between the eroding and accreting areas of the Nile ...
Accumulation and soil-to-plant transfer of radionuclides in the Nile Delta coastal black sand habitats. ... a total of 14 heavy minerals found in the soils were characterized. The soil to plant transfer of uranium and thorium was tested on three black sand species, namely, Cakile maritima Scop., Senecio glaucus L. and Rumex Pictus Forssk. The ...
May 29, 2014· Stanley, J.-D. and Clemente, P.L., 2014. Mica and heavy minerals as markers to map Nile Delta coastline displacements during the Holocene. Mica and heavy minerals in sediments of Egypt's Nile Delta are examined to test if measured proportions of these two mineral groups and their distributions can be used to define former coastline positions and their shifts in time and space during …
Jan 01, 1988· Heavy minerals in radiocarbon-dated Nile Delta core sections indicate that, during the past 35,000 years, deposits in this major eastern Mediterranean…
production in the period of 1965-1968 was 29,000 mt ilmenite, 9,500 mt magnetite, 2,000 mt zircon, and 130 mt rutile. rare earth data are in the form of monazite, which con- tains 61% reo.
Jul 20, 1994· The Rosetta promontory on the western coast of the Nile delta has been subjected to severe erosion. Spatial and temporal shoreline changes have been estimated from ground survey data obtained between 1971 and 1992. The data consist of 45 beach profiles along 45 km of coast. Shoreline erosion rates are higher along the promontory tip (52.9 to 102.2/yr).
Jun 03, 2020· identification and contamination assessment of heavy metals in soil of Middle Nile Delta, Egypt, Journal of Taibah University for Science, 14:1, 750-761, DOI: 10.1080/16583655.2020.1771833