Using advanced spectral analyses techniques as possible means of identifying clay minerals

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dc.contributor.authorAltinbaş Ü.
dc.contributor.authorKurucu Y.
dc.contributor.authorBolca M.
dc.contributor.authorEl-Nahry A.H.
dc.date.accessioned2019-10-27T00:11:56Z
dc.date.available2019-10-27T00:11:56Z
dc.date.issued2005
dc.departmentEge Üniversitesien_US
dc.description.abstractSpectral analyses, one of the most advanced remote sensing techniques, were used as a possible means of identifying the mineralogy of the clay fractions that corresponded to the Küçük Menderes Plain, south of İzmir, Turkey. Different spectral processes were used to execute the prospective spectral analyses. The processes include: i. the reflectance calibration of TM images belonging to the studied area, ii. using minimum noise fraction (MNF) transformation and iii. creating the pixel purity index (PPI), which was used to the most "spectrally pure", extreme, pixel in multi-spectral images. Spectral analyses of the clay mineralogy of the studied area were obtained by matching the unknown spectra of the purest pixels to pre-defined (library) spectra providing scores with respect to the library spectra. Three methods, namely Spectral Feature Fitting (SFF), Spectral Angle Mapper (SAM) and Binary Encoding (BE) were used to produce a score between 0 and 1, where the value of 1 equals a perfect match showing the exact mineral type. We were able to identify 4 clay minerals i.e., vermiculite, kaolinite, montmorillonite and illite, recording different scores related to their abundance in the soils. In order to check the validity and accuracy of the results obtained regarding the spectral signatures of the minerals identified, soil samples taken from the same localities were subjected to X-ray analysis. As a result a good correlation was found between the spectral signatures and the X-ray diffractions. © TÜBİTAK.en_US
dc.identifier.doi10.3906/tar-0401-7
dc.identifier.endpage28en_US
dc.identifier.issn1300011X
dc.identifier.issn1300-011Xen_US
dc.identifier.issue1en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage19en_US
dc.identifier.urihttps://doi.org/10.3906/tar-0401-7
dc.identifier.urihttps://hdl.handle.net/11454/22259
dc.identifier.volume29en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherTUBITAKen_US
dc.relation.ispartofTurkish Journal of Agriculture and Forestryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectClay mineralogyen_US
dc.subjectRemote sensingen_US
dc.subjectSpectral analysisen_US
dc.subjectX-ray diffractionen_US
dc.titleUsing advanced spectral analyses techniques as possible means of identifying clay mineralsen_US
dc.typeArticleen_US

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