Determining lateral offsets of rocks along the eastern part of the North Anatolian Fault Zone (Turkey) using spectral classification of satellite images and field measurements
Fault displacements are being measured by geological observations using the method of detecting and evaluating marker rocks. Thus, the length of total displacement in a fault zone relates to position detection of marker rocks. Due to limits of human eye, we used remote sensing data and terrestrial s...
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| Veröffentlicht in: | Geomatics, natural hazards and risk natural hazards and risk, 2017-12, Vol.8 (2), p.1276-1288 |
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| creator | Gürsoy, Önder Kaya, Şinasi Çakir, Ziyadin Tatar, Orhan Canbaz, Oktay |
| description | Fault displacements are being measured by geological observations using the method of detecting and evaluating marker rocks. Thus, the length of total displacement in a fault zone relates to position detection of marker rocks. Due to limits of human eye, we used remote sensing data and terrestrial spectral measurements at 229 locations for measuring the total offset along the Kelkit Valley segment of the North Anatolian Fault Zone (NAFZ). We examined the lithology, especially ophiolites that are older than the fault zone and can be a good marker for detecting the total offset in the region. The Advanced Spaceborne Thermal Emission and Reflection Radiometer images are subjected to Spectral Angle Mapper (SAM) method. Principal component analysis, decorrelation stretching and geological map were used to compare the SAM results. Ophiolites on either side of the fault zone were clearly classified and identified with the SAM analysis. As a result of comparison of SAM with image enhancement methods and the geological map, we measured the total fault displacement on the NAFZ in the part of the Kelkit Valley. Along the fault zone to the north and south of the ophiolites providing a right lateral offset was measured as 90 ± 5 km. |
| doi_str_mv | 10.1080/19475705.2017.1318794 |
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Thus, the length of total displacement in a fault zone relates to position detection of marker rocks. Due to limits of human eye, we used remote sensing data and terrestrial spectral measurements at 229 locations for measuring the total offset along the Kelkit Valley segment of the North Anatolian Fault Zone (NAFZ). We examined the lithology, especially ophiolites that are older than the fault zone and can be a good marker for detecting the total offset in the region. The Advanced Spaceborne Thermal Emission and Reflection Radiometer images are subjected to Spectral Angle Mapper (SAM) method. Principal component analysis, decorrelation stretching and geological map were used to compare the SAM results. Ophiolites on either side of the fault zone were clearly classified and identified with the SAM analysis. As a result of comparison of SAM with image enhancement methods and the geological map, we measured the total fault displacement on the NAFZ in the part of the Kelkit Valley. Along the fault zone to the north and south of the ophiolites providing a right lateral offset was measured as 90 ± 5 km.</description><identifier>ISSN: 1947-5705</identifier><identifier>EISSN: 1947-5713</identifier><identifier>DOI: 10.1080/19475705.2017.1318794</identifier><language>eng</language><publisher>Abingdon: Taylor & Francis</publisher><subject>Detection ; Displacement ; Fault lines ; Fault zones ; Faults ; Geologic mapping ; Geological mapping ; Geological maps ; Geology ; Image classification ; Image enhancement ; Lithology ; Methods ; NAFZ ; Offsets ; Ophiolites ; Principal components analysis ; Radiometers ; Remote sensing ; Rock ; Rocks ; Satellite imagery ; Satellites ; Spectra ; Spectral classification ; Thermal emission ; total offset ; Valleys</subject><ispartof>Geomatics, natural hazards and risk, 2017-12, Vol.8 (2), p.1276-1288</ispartof><rights>2017 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group 2017</rights><rights>2017 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This work is licensed under the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (the “License”). 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Thus, the length of total displacement in a fault zone relates to position detection of marker rocks. Due to limits of human eye, we used remote sensing data and terrestrial spectral measurements at 229 locations for measuring the total offset along the Kelkit Valley segment of the North Anatolian Fault Zone (NAFZ). We examined the lithology, especially ophiolites that are older than the fault zone and can be a good marker for detecting the total offset in the region. The Advanced Spaceborne Thermal Emission and Reflection Radiometer images are subjected to Spectral Angle Mapper (SAM) method. Principal component analysis, decorrelation stretching and geological map were used to compare the SAM results. Ophiolites on either side of the fault zone were clearly classified and identified with the SAM analysis. As a result of comparison of SAM with image enhancement methods and the geological map, we measured the total fault displacement on the NAFZ in the part of the Kelkit Valley. Along the fault zone to the north and south of the ophiolites providing a right lateral offset was measured as 90 ± 5 km.</description><subject>Detection</subject><subject>Displacement</subject><subject>Fault lines</subject><subject>Fault zones</subject><subject>Faults</subject><subject>Geologic mapping</subject><subject>Geological mapping</subject><subject>Geological maps</subject><subject>Geology</subject><subject>Image classification</subject><subject>Image enhancement</subject><subject>Lithology</subject><subject>Methods</subject><subject>NAFZ</subject><subject>Offsets</subject><subject>Ophiolites</subject><subject>Principal components analysis</subject><subject>Radiometers</subject><subject>Remote sensing</subject><subject>Rock</subject><subject>Rocks</subject><subject>Satellite imagery</subject><subject>Satellites</subject><subject>Spectra</subject><subject>Spectral classification</subject><subject>Thermal emission</subject><subject>total 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lateral offsets of rocks along the eastern part of the North Anatolian Fault Zone (Turkey) using spectral classification of satellite images and field measurements</title><author>Gürsoy, Önder ; Kaya, Şinasi ; Çakir, Ziyadin ; Tatar, Orhan ; Canbaz, Oktay</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c451t-7d3ee7aed2c737e0a91ca0ce907f49127276a3dcefd51fb3df808f7c0af9bf033</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Detection</topic><topic>Displacement</topic><topic>Fault lines</topic><topic>Fault zones</topic><topic>Faults</topic><topic>Geologic mapping</topic><topic>Geological mapping</topic><topic>Geological maps</topic><topic>Geology</topic><topic>Image classification</topic><topic>Image enhancement</topic><topic>Lithology</topic><topic>Methods</topic><topic>NAFZ</topic><topic>Offsets</topic><topic>Ophiolites</topic><topic>Principal components 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Thus, the length of total displacement in a fault zone relates to position detection of marker rocks. Due to limits of human eye, we used remote sensing data and terrestrial spectral measurements at 229 locations for measuring the total offset along the Kelkit Valley segment of the North Anatolian Fault Zone (NAFZ). We examined the lithology, especially ophiolites that are older than the fault zone and can be a good marker for detecting the total offset in the region. The Advanced Spaceborne Thermal Emission and Reflection Radiometer images are subjected to Spectral Angle Mapper (SAM) method. Principal component analysis, decorrelation stretching and geological map were used to compare the SAM results. Ophiolites on either side of the fault zone were clearly classified and identified with the SAM analysis. As a result of comparison of SAM with image enhancement methods and the geological map, we measured the total fault displacement on the NAFZ in the part of the Kelkit Valley. 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| subjects | Detection Displacement Fault lines Fault zones Faults Geologic mapping Geological mapping Geological maps Geology Image classification Image enhancement Lithology Methods NAFZ Offsets Ophiolites Principal components analysis Radiometers Remote sensing Rock Rocks Satellite imagery Satellites Spectra Spectral classification Thermal emission total offset Valleys |
| title | Determining lateral offsets of rocks along the eastern part of the North Anatolian Fault Zone (Turkey) using spectral classification of satellite images and field measurements |
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