GEOCHEMISTRYOF BEACH SANDS FROM ABU DHABI, UNITED ARAB EMIRATES (UAE)

Saeed Al Rashedi; Abdi Siad

doi:10.17721/1728-2713.75.03

Authors

Saeed Al Rashedi Department of Earth Sciences, University of the Western Cape, CapeTown, South Africa
Abdi Siad Department of Earth Sciences, University of the Western Cape, CapeTown, South Africa

DOI:

https://doi.org/10.17721/1728-2713.75.03

Keywords:

beach, sands, geochemical composition

Abstract

Fifty-seven beach sediment samples were collected along the beaches of Abu Dhabi, United Arab Emirates to determine their geochemical composition using X-ray fluorescence and ICP analysis. Two dominant sediments groups i.e. marine biogenic carbonate and terrigenous sediments were identified through major elements scatterplots and ternary diagram of the dominant major elements. CaO has shown negative correlation with all major and most of the trace elements with exception Sr, As and U. The scatter plots for both Al2O3 and SiO2 show positive correlation with all major elements with the exception of CaO and LOI and all the trace elements with exception of Sr,As and U. Therefore, strontium, uranium and arsenic are considered to have marine origin.

References

Alsharhan A. S., Kendall C. S. (2003). Coastal carbonates and evaporites of the southern Arabian Gulf and their ancient analogues.EarthScience Reviews, 61(3–4), 191–43.

Boardman, M. R. (1978). Holocene deposition in northwest Providence Channel, Bahamas: a geochemical approach. Doctoral dissertation. Chapel Hill, North Carolina: University of North Carolina.

Crevello P. D., Schlager W. (1980). Carbonate debris sheets and turbidites, Exuma Sound, Bahamas. Journal of Sedimentary Petrology, 50, 1121–1148.

Edwards A. C., Zubillaga J. J. K., Hoz L. R., Morales-de la Garza E. A., Cruz R. L-S. (2009). Beach sand composition and provenance in a sector of the southwestern Mexican Pacific. Revista Mexicana de Ciencias- Geológicas, 26, 433–447.

El-Sammak O. M. (2001). Heavy metal pollution in bottom sediment, Dubai, United Arab Emirates.Bulletin of Environment Contamination and Toxicology, 67(2), 295–302.

Evans G. (1994). The Arabian Gulf: A modern carbonate-evaporite factory; a review. In Permico y Triasico de la Peninsula Iberica; Permian and Triassic of the Iberian Peninsula. Eds. A. Arche& J. Lopez-Gomez. (pp. 61–96). Cuadernos de GeologiaIberica.

Evans G., Kendall C. G. St. C., Skipwith P. (1964). Origin of the coastal flats, the sabkha, of the Trucial Coast, Persian Gulf. Nature, 759–761.

Evans G., Schmidt V., Bush P., Nelson H. (1969). Stratigraphy and geologic history of the sabkha, Abu Dhabi, Persian Gulf. Sedimentology, 12, 145–159.

Kendall C. G. St. C., Skipwith P. A. (1969). Holocene Shallow Water Carbonate and evaporite sediments of Khor Al Bazam, Abu Dhabi, Southwest Persian Gulf. AAPG Bull., 53, 841–869.

Kinsman D. J. J. (1964). Recent carbonate sedimentation near Abu Dhabi, Trucial Coast, Persian Gulf. PhD edn, University of London.

Kirkham A. (1997). Shoreline evolution, aeolian deflation and anhydrite distribution of the Holocene, Abu Dhabi. GeoArabia, 4, 403–416.

Kirkham A. (1998). Pleistocene carbonateseif dunes and their role in the development of complex past and present coastlines of the UAE. GeoArabia, 3, 19–32.

Plumb Jr. R. H. (1981). Procedures for Handling and Chemical Analysis of Sediment and Water Samples. Technical Report EPA/ CE Contract No. EP-4805572010. U.S. EPA, Environmental Laboratory. Vicksburg, MS.

Walkden G., Williams A. (1998). Carbonate ramps and the Pleistocene-recent depositional systems of the Arabian Gulf. Geological Society, London, Special Publications, 149, 43–45.

Wedepohl K. H. (1995). The composition of the continental crust. GeochimCosmochimActa, 59, 1217–1232.