NDLI: Geochemical background for the Saudi Red Sea coastal systems and its implication for future environmental monitoring and assessment

Content Provider	Springer Nature Link
Author	Basaham, Ali S. El Sayed, Mohamed A. Ghandour, Ibrahim M. Masuda, Harue
Copyright Year	2015
Abstract	The present study aims at determining a geochemical background for the Red Sea to be a base for future environmental studies along the Saudi Red Sea coastal systems. Eighty-nine bottom sediment samples were collected from three coastal lagoons; Sharm Al-Kharar (47 samples) at the northern terminal of Wadi Rabigh, Al-Shuaiba Lagoon (22 samples) a fossil lagoon about 80 km south of Jeddah and Al-Mejarma Lagoon (20 samples) a back-barrier lagoon about 40 km south of Al-Shuaiba. The mud fraction (<0.063 mm) was analysed to determine the concentrations of Al, Fe, Mn, V, Cr, Ni, Cu and Zn. The sediments of Sharm Al-Kharar yielded higher elemental concentrations than the other two lagoons. Aluminium (Al) displays significant correlation (r > 0.8) with Fe, Mn, V, Cr, Ni and Zn indicating that these elements are closely associated with the detrital influx. The geochemical background was determined after eliminating the outlier values using the equation median ± 2MAD (median absolute deviation) and then calculated descriptive statistics. Minimum values define lower limit of the background, the 98 percentiles define the upper limit and the geometric rather than arithmetic mean was used to define the average value. The calculation of environmental assessment indices using upper continental crust or average shale as background yields low values compared to the values calculated using estimated mean in the present study.
Starting Page	4561
Ending Page	4570
Page Count	10
File Format	PDF
ISSN	18666280
Journal	Environmental Earth Sciences
Volume Number	74
Issue Number	5
e-ISSN	18666299
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-05-07
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Geochemical background Environmental monitoring Saudi Red Sea coastal lagoons Calcareous sediments Geology Hydrology/Water Resources Geochemistry Environmental Science and Engineering Terrestrial Pollution Biogeosciences
Content Type	Text
Resource Type	Article
Subject	Global and Planetary Change Earth-Surface Processes Soil Science Environmental Chemistry Pollution Geology Water Science and Technology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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