Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.clay.2018.02.042 |
Hyperspectral remote sensing for mapping and detection of Egyptian kaolin quality | |
Awad, Mahmoud E.1,3,4; Amer, Reda2; Lopez-Galindo, Alberto3; El-Rahmany, Mahmoud M.1; Garcia del Moral, Luis F.5; Viseras, Cesar3,4 | |
通讯作者 | Awad, Mahmoud E. |
会议名称 | 16th International Clay Conference (ICC) |
会议日期 | JUL 17-21, 2017 |
会议地点 | Granada, SPAIN |
英文摘要 | This study aims to use spectral analysis and hyperspectral Hyperion remote sensing images of the Egyptian Abu Zenima Carboniferous and Cretaceous kaolin deposits, located in West-Central Sinai Peninsula, for mapping the spatial distribution of their qualities determined by their mineralogical and geochemical parameters. Mineral quantification has been made by X-ray diffractometry and chemical analysis, and kaolinite structural order disorder degree was measured by mean of the Hinckley (HI), Stoch (IK) and Lietard (R2) indices. The geochemical characteristics classified the studied samples into ferruginous and non -ferruginous deposits. The mineralogical composition discriminated the studied sample grades into kaolin (> 75% kaolinite), silty kaolin (75-50% kaolinite) and kaolinitic siltstone (< 50% kaolinite). Abu Zenima kaolin quality is mainly influenced by quartz and Fe-Ti minerals contents. The Carboniferous kaolin samples are characterized by ordered kaolinite (HI or R2 > 1 and IK < 0.7), while the Cretaceous kaolins exhibited mainly disordered kaolinite (HI or R2 < 1 and IK > 0.7). Five EO-1 Hyperion Level 1 GST radiometrically and geometrically corrected images of April and May 2011 were used to identify the spatial distribution of Carboniferous and Cretaceous kaolin grades and the structural characteristics of kaolinite. The position, depth, full-width-half-maximum and 225P-Index of the absorption features were calculated for the continuum-removed spectra in the range 350-2500 nm. Prominent absorption features spectra occur around similar to 1400, similar to 1900, similar to 2200 and 2300 nm, and there are shifting and changes in their position and morphology with the kaolinite richness and the structural order-disorder degree. Spectral Angle Mapper (SAM) supervised classifications proved successfulness for identifying the kaolinite spatial distribution on the Hyperion images using the measured spectra of kaolins with different qualities and structural order-disorders. |
英文关键词 | Egypt Abu Zenima Kaolin Hyperspectral parameters Hyperion image Structural order-disorder |
来源出版物 | APPLIED CLAY SCIENCE |
ISSN | 0169-1317 |
EISSN | 1872-9053 |
出版年 | 2018 |
卷号 | 160 |
页码 | 249-262 |
出版者 | ELSEVIER SCIENCE BV |
类型 | Article;Proceedings Paper |
语种 | 英语 |
国家 | Egypt;USA;Spain |
收录类别 | SCI-E ; CPCI-S |
WOS记录号 | WOS:000433652900028 |
WOS关键词 | SPACEBORNE THERMAL EMISSION ; REFLECTION RADIOMETER ASTER ; EO-1 HYPERION ; QUANTITATIVE-ANALYSIS ; PARTICLE INTERACTIONS ; CRYSTALLINITY INDEX ; EASTERN DESERT ; MINERALS ; SPECTROSCOPY ; DEPOSITS |
WOS类目 | Chemistry, Physical ; Materials Science, Multidisciplinary ; Mineralogy |
WOS研究方向 | Chemistry ; Materials Science ; Mineralogy |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/307107 |
作者单位 | 1.Al Azhar Univ Cairo, Dept Geol, Fac Sci, Cairo 11884, Egypt; 2.Tulane Univ, Dept Earth & Environm Sci, New Orleans, LA 70118 USA; 3.Univ Granada, IACT, CSIC, Granada, Spain; 4.Univ Granada, Dept Farm & Tecnol Farmaceut, Granada, Spain; 5.Univ Granada, Dept Fisiol Vegetal, Granada, Spain |
推荐引用方式 GB/T 7714 | Awad, Mahmoud E.,Amer, Reda,Lopez-Galindo, Alberto,et al. Hyperspectral remote sensing for mapping and detection of Egyptian kaolin quality[C]:ELSEVIER SCIENCE BV,2018:249-262. |
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