Arid
DOI10.1007/s12517-015-1943-z
Mineralogical and geochemical aspects of Miocene laterite, Sharm Lollia area, South Eastern Desert, Egypt
Aly, Gehan A. M.
通讯作者Aly, Gehan A. M.
来源期刊ARABIAN JOURNAL OF GEOSCIENCES
ISSN1866-7511
EISSN1866-7538
出版年2015
卷号8期号:12页码:10399-10418
英文摘要

A lateritic soil profile formed on the top of the middle Miocene was identified in the south of the Eastern Desert of Egypt. It is located about 55 km south of Marsa Alam and far about 3 km from the Red Sea coast. The mineral identification of samples was carried out using X-ray diffraction (XRD) and scanning electron microscope (SEM). The study revealed the relative predominance of kaolinite and gibbsite beside iron minerals (hematite and goethite), evaporates (halite and anhydrite), carbonate (dolomite and calcite), quartz, and cryptomelane. Accessory minerals are represented by columbite, tapiolite, thorite, monazite, zircon, barite, atacamite, anarkite, romanchite, hemimorphite, cerussite, garnet, ilmenite, nickel, and flurorichterite. The geochemical data of the bulk samples reflect enrichment in SiO2, Al2O3, Fe2O3, Zn, Pb, Ba, Sr, As, Nb, Cu, and Zr. This lateritic soil shows high Uc/Th ratio indicating addition of uranium under suboxic to anoxic condition. The LREE predominance was over the HREE due to the presence of monazite mineral. Negative Eu anomaly confirms the saturated source rocks of these laterites.


英文关键词Egypt Sharm Lollia Laterite Gibbsite Kaolinite Mineralogy and geochemistry
类型Article
语种英语
国家Egypt
收录类别SCI-E
WOS记录号WOS:000365450800019
WOS关键词CLIMATES ; SHALES
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/185954
作者单位Nucl Mat Author, Cairo, Egypt
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GB/T 7714
Aly, Gehan A. M.. Mineralogical and geochemical aspects of Miocene laterite, Sharm Lollia area, South Eastern Desert, Egypt[J],2015,8(12):10399-10418.
APA Aly, Gehan A. M..(2015).Mineralogical and geochemical aspects of Miocene laterite, Sharm Lollia area, South Eastern Desert, Egypt.ARABIAN JOURNAL OF GEOSCIENCES,8(12),10399-10418.
MLA Aly, Gehan A. M.."Mineralogical and geochemical aspects of Miocene laterite, Sharm Lollia area, South Eastern Desert, Egypt".ARABIAN JOURNAL OF GEOSCIENCES 8.12(2015):10399-10418.
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