Using reflectance spectroscopy and Advanced Spaceborne Thermal Emission and Reflection Radiometer data to identify bauxite deposits in vicinity of Az Zabirah, northern Saudi Arabia

被引：3
作者：
Ghrefat H. [1 ]
Al Mutairi Y. [2 ]
ElAraby H. [1 ,3 ]
Galmed M. [1 ,4 ]
Mohamed E. [1 ]
机构：
[1] Department of Geology and Geophysics, College of Science, King Saud University, Riyadh
[2] King Abdulaziz City for Science and Technology, Riyadh
[3] Geophysics Department, Faculty of Science, Cairo University, Cairo
[4] Geology Department, Faculty of Science, Cairo University, Giza
来源：
Arabian Journal of Geosciences | 2021年 / 14卷 / 9期
关键词：
Bauxite; Mineralogy; Reflectance; Saudi Arabia; Spectroscopy;
D O I：
10.1007/s12517-021-07155-7
中图分类号：
学科分类号：
摘要：
Bauxite samples from deposits in northern Saudi Arabia were identified in the laboratory using spectral reflectance measurements (at 0.3–2.5 μm) and X-ray diffraction (XRD). The XRD results revealed that the bauxite deposits are composed mainly of goethite, gibbsite, and boehmite with small amounts of kaolinite, hematite, and quartz. The bauxite spectra revealed the presence of significant iron oxides (at 0.5 and 0.87 μm) accompanied by water (at 1.4 and 1.9 μm) and aluminum hydroxide (at 2.2 μm). The convolved Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) spectra of the bauxite samples were characterized by an aluminum hydroxide feature in ASTER band 6 (at 2.2 μm). The results demonstrated that principal components analysis band PC2 is the best component for delineating the bauxite deposits. Fractional abundances of bauxite were derived by using a matched-filtering method. This study demonstrates the applicability of reflectance spectroscopy and ASTER data to provide spectral information for distinguishing economically important minerals from visible and near-infrared and shortwave-infrared spectra in arid and semiarid environments such as in Saudi Arabia. © 2021, Saudi Society for Geosciences.
引用
收藏
相关论文
共 39 条
[1]  
Al-Jaf A., Remote Sensing and GIS for Studying Some Geological Phenomena and Mineral Deposits in the Western Desert in IRAQ, (2008)
[2]  
Al-mutairi A., Mineralogy and geochemistry of bauxite ore deposits at Az Zabirah Area, Central Northern of Saudi Arabia. Master thesis submitted at the Department of Geology and Geophysics, (2013)
[3]  
Al-Mutairi N.B., Geologic setting of Az Zabirah south zone bauxite ore deposits, Central North of Saudi Arabia. Thesis Master Submitted to the Department of Geology and Geophysics, College of Science, (2019)
[4]  
Al-mutairi Y.A., El-Araby H.M., Ghrefat H.A., Alotaibi A.M., Mapping lateritic bauxite deposits at Az Zabirah, Saudi Arabia, using ground-penetration radar exploration method, Arab J Geosci, 12, (2019)
[5]  
Aravindan S., Bharathiraja S., Kumar B.S., Hyper spectral signature and ASTER data analysis for mapping of Bauxite deposits in Shevaroy hill of Tamil Nadu, India, Int Res J Earth Sci, 8, 1, pp. 13-19, (2020)
[6]  
Babu R.M.J., Rao D.E.N., Kallempudi L., Das Iswar C., Mapping of aluminous rich laterite depositions through hyper spectral remote sensing, Int J Geosci, 9, pp. 93-105, (2018)
[7]  
Black R.Y., Bognar B., Watson A.D., Barnes D.P., Evaluation of the Az Zabira Bauxite Deposit (1980-1982). Riofinex Ltd, (1982)
[8]  
Boardman J.W., Automated Spectral Unmixing of AVIRIS Data Using Convex Geometry Concepts: In Summaries, Fourth JPL Airborne Geoscience Workshop, JPL Publication, 93-26, pp. 11-14, (1993)
[9]  
Boardman J.W., Kruse F.A., Green R., Mapping target signatures via partial unmixing of AVIRIS data: In Summaries, Fifth JPL Airborne Earth Science Workshop, 1, pp. 23-26, (1999)
[10]  
Bowden R.A., Geology of the Az Zabira bauxite occurrence, Riofinex Ltd, (1981)
1234