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Spectral Signature Characterization and Remote Mapping of Oman Exotic Limestones for Industrial Rock Resource Assessment
- Source :
- Geosciences; Volume 8; Issue 4; Pages: 145, Geosciences, Vol 8, Iss 4, p 145 (2018)
- Publication Year :
- 2018
- Publisher :
- MDPI AG, 2018.
-
Abstract
- This study demonstrates the capability of Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) sensor data to remotely map industrial carbonate rocks known as the ‘Oman exotics’ of the Sultanate of Oman. We measured reflectance spectra of marble using a PIMA™ spectrometer and studied their spectral absorptions distinguishing calcite from spectral absorptions of dolomite of the same region. The spectral band 8 of ASTER is processed by simple decorrelation stretch image processing method to map the exotic limestone rock of the Nakhl region, Oman. Results showed that carbonate rocks displayed distinctive tonal variation on the image. A comparative study with the spectral band 7 of Landsat 7 (ETM+) does not discriminate the calcite-bearing marbles and associated carbonate formations in the studied area. ASTER data were also processed by the application of the Maximum Likelihood Classification (MLC), Spectral Angle Mapper (SAM) and Spectral Information Divergence (SID) image classification algorithms. The results were assessed by the production of a confusion matrix. The study shows the capability of visible near infrared (VNIR) and shortwave infrared (SWIR) spectral bands of the ASTER sensor and potential of the image processing methods to remotely identify industrial carbonate rocks and we recommend this technique to similar regions of the world.
- Subjects :
- Oman
010504 meteorology & atmospheric sciences
Dolomite
Mineralogy
Image processing
010502 geochemistry & geophysics
01 natural sciences
ASTER
remote sensing
chemistry.chemical_compound
Advanced Spaceborne Thermal Emission and Reflection Radiometer
mapping
0105 earth and related environmental sciences
Spectral signature
lcsh:QE1-996.5
Landsat (ETM+)
Spectral bands
exotic limestone
VNIR
industrial rock
lcsh:Geology
spectral signatures
chemistry
General Earth and Planetary Sciences
Carbonate rock
Carbonate
Geology
Subjects
Details
- ISSN :
- 20763263
- Volume :
- 8
- Database :
- OpenAIRE
- Journal :
- Geosciences
- Accession number :
- edsair.doi.dedup.....63c8552d5cd0af477af228fd9176c864