Arabian Red Sea coastal soils as potential mineral dust sources

Handle URI:
http://hdl.handle.net/10754/621158
Title:
Arabian Red Sea coastal soils as potential mineral dust sources
Authors:
Prakash, P. Jish; Stenchikov, Georgiy L. ( 0000-0001-9033-4925 ) ; Tao, Weichun ( 0000-0002-3382-4036 ) ; Yapici, Tahir; Warsama, Bashir H.; Engelbrecht, Johann
Abstract:
Both Moderate Resolution Imaging Spectroradiometer (MODIS) and Spinning Enhanced Visible and InfraRed Imager (SEVIRI) satellite observations suggest that the narrow heterogeneous Red Sea coastal region is a frequent source of airborne dust that, because of its proximity, directly affects the Red Sea and coastal urban centers. The potential of soils to be suspended as airborne mineral dust depends largely on soil texture, moisture content and particle size distributions. Airborne dust inevitably carries the mineralogical and chemical signature of a parent soil. The existing soil databases are too coarse to resolve the small but important coastal region. The purpose of this study is to better characterize the mineralogical, chemical and physical properties of soils from the Arabian Red Sea coastal plain, which in turn will help to improve assessment of dust effects on the Red Sea, land environmental systems and urban centers. Thirteen surface soils from the hot-spot areas of windblown mineral dust along the Red Sea coastal plain were sampled for analysis. Analytical methods included optical microscopy, X-ray diffraction (XRD), inductively coupled plasma optical emission spectrometry (ICP-OES), ion chromatography (IC), scanning electron microscopy (SEM) and laser particle size analysis (LPSA). We found that the Red Sea coastal soils contain major components of quartz and feldspar, as well as lesser but variable amounts of amphibole, pyroxene, carbonate, clays and micas, with traces of gypsum, halite, chlorite, epidote and oxides. The range of minerals in the soil samples was ascribed to the variety of igneous and metamorphic provenance rocks of the Arabian Shield forming the escarpment to the east of the Red Sea coastal plain. The analysis revealed that the samples contain compounds of nitrogen, phosphorus and iron that are essential nutrients to marine life. The analytical results from this study will provide a valuable input into dust emission models used in climate, marine ecology and air quality studies.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Jish Prakash P, Stenchikov G, Tao W, Yapici T, Warsama B, et al. (2016) Arabian Red Sea coastal soils as potential mineral dust sources. Atmospheric Chemistry and Physics 16: 11991–12004. Available: http://dx.doi.org/10.5194/acp-16-11991-2016.
Publisher:
Copernicus GmbH
Journal:
Atmospheric Chemistry and Physics
Issue Date:
26-Sep-2016
DOI:
10.5194/acp-16-11991-2016
Type:
Article
ISSN:
1680-7324
Sponsors:
This research, including the chemical and mineralogical analysis, is supported by internal funding from the King Abdullah University of Science and Technology (KAUST). For chemical analyses, this research used the resources of the KAUST core lab. We acknowledge the contribution from the collaborating laboratories of the RJ Lee Group and Desert Research Institute
Additional Links:
http://www.atmos-chem-phys.net/16/11991/2016/
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorPrakash, P. Jishen
dc.contributor.authorStenchikov, Georgiy L.en
dc.contributor.authorTao, Weichunen
dc.contributor.authorYapici, Tahiren
dc.contributor.authorWarsama, Bashir H.en
dc.contributor.authorEngelbrecht, Johannen
dc.date.accessioned2016-10-24T13:47:16Z-
dc.date.available2016-10-24T13:47:16Z-
dc.date.issued2016-09-26en
dc.identifier.citationJish Prakash P, Stenchikov G, Tao W, Yapici T, Warsama B, et al. (2016) Arabian Red Sea coastal soils as potential mineral dust sources. Atmospheric Chemistry and Physics 16: 11991–12004. Available: http://dx.doi.org/10.5194/acp-16-11991-2016.en
dc.identifier.issn1680-7324en
dc.identifier.doi10.5194/acp-16-11991-2016en
dc.identifier.urihttp://hdl.handle.net/10754/621158-
dc.description.abstractBoth Moderate Resolution Imaging Spectroradiometer (MODIS) and Spinning Enhanced Visible and InfraRed Imager (SEVIRI) satellite observations suggest that the narrow heterogeneous Red Sea coastal region is a frequent source of airborne dust that, because of its proximity, directly affects the Red Sea and coastal urban centers. The potential of soils to be suspended as airborne mineral dust depends largely on soil texture, moisture content and particle size distributions. Airborne dust inevitably carries the mineralogical and chemical signature of a parent soil. The existing soil databases are too coarse to resolve the small but important coastal region. The purpose of this study is to better characterize the mineralogical, chemical and physical properties of soils from the Arabian Red Sea coastal plain, which in turn will help to improve assessment of dust effects on the Red Sea, land environmental systems and urban centers. Thirteen surface soils from the hot-spot areas of windblown mineral dust along the Red Sea coastal plain were sampled for analysis. Analytical methods included optical microscopy, X-ray diffraction (XRD), inductively coupled plasma optical emission spectrometry (ICP-OES), ion chromatography (IC), scanning electron microscopy (SEM) and laser particle size analysis (LPSA). We found that the Red Sea coastal soils contain major components of quartz and feldspar, as well as lesser but variable amounts of amphibole, pyroxene, carbonate, clays and micas, with traces of gypsum, halite, chlorite, epidote and oxides. The range of minerals in the soil samples was ascribed to the variety of igneous and metamorphic provenance rocks of the Arabian Shield forming the escarpment to the east of the Red Sea coastal plain. The analysis revealed that the samples contain compounds of nitrogen, phosphorus and iron that are essential nutrients to marine life. The analytical results from this study will provide a valuable input into dust emission models used in climate, marine ecology and air quality studies.en
dc.description.sponsorshipThis research, including the chemical and mineralogical analysis, is supported by internal funding from the King Abdullah University of Science and Technology (KAUST). For chemical analyses, this research used the resources of the KAUST core lab. We acknowledge the contribution from the collaborating laboratories of the RJ Lee Group and Desert Research Instituteen
dc.publisherCopernicus GmbHen
dc.relation.urlhttp://www.atmos-chem-phys.net/16/11991/2016/en
dc.rights© Author(s) 2016. This work is distributed under the Creative Commons Attribution 3.0 License.en
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/en
dc.titleArabian Red Sea coastal soils as potential mineral dust sourcesen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalAtmospheric Chemistry and Physicsen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDesert Research Institute (DRI), Reno, Nevada 89512-1095, USAen
kaust.authorPrakash, P. Jishen
kaust.authorStenchikov, Georgiy L.en
kaust.authorTao, Weichunen
kaust.authorYapici, Tahiren
kaust.authorWarsama, Bashir H.en
kaust.authorEngelbrecht, Johannen
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