Fracture network mapping using Landsat-8 OLI images of the mining zone of Jbel Tijekht in Moroccan Eastern Anti-Atlas
Jbel Tijekht is one of the most important geological structures of the Ougnat-Ouzina ridge in the Eastern Anti-Atlas. This crescent-shaped massif was affected by a network fractures that is visible at different scales. It is particularly rich in numerous mineralized veins of barite, and is associate...
| Published in: | Estudios Geológicos |
|---|---|
| Main Authors: | , , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Consejo Superior de Investigaciones Científicas
2020
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| Subjects: | |
| Online Access: | http://estudiosgeol.revistas.csic.es/index.php/estudiosgeol/article/view/1029 https://doi.org/10.3989/egeol.43887.587 |
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ftjegeologicos:oai:estudiosgeologicos.revistas.csic.es:article/1029 |
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openpolar |
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Open Polar |
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Estudios Geológicos (E-Journal) |
| op_collection_id |
ftjegeologicos |
| language |
English |
| topic |
Structural mapping Lineaments extractions Variscan Jbel Tijekht Ougnat-Ouzina Ridge Moroccan Eastern Anti-Atlas Cartografía estructural Extracciones de lineamientos Dorsal Ougnat-Ouzina Anti-Atlas oriental marroquí |
| spellingShingle |
Structural mapping Lineaments extractions Variscan Jbel Tijekht Ougnat-Ouzina Ridge Moroccan Eastern Anti-Atlas Cartografía estructural Extracciones de lineamientos Dorsal Ougnat-Ouzina Anti-Atlas oriental marroquí Saidi, Omar Mhamdi, Hicham Si Essalhi, Abdelhafid Toummite, Abdeslam Fracture network mapping using Landsat-8 OLI images of the mining zone of Jbel Tijekht in Moroccan Eastern Anti-Atlas |
| topic_facet |
Structural mapping Lineaments extractions Variscan Jbel Tijekht Ougnat-Ouzina Ridge Moroccan Eastern Anti-Atlas Cartografía estructural Extracciones de lineamientos Dorsal Ougnat-Ouzina Anti-Atlas oriental marroquí |
| description |
Jbel Tijekht is one of the most important geological structures of the Ougnat-Ouzina ridge in the Eastern Anti-Atlas. This crescent-shaped massif was affected by a network fractures that is visible at different scales. It is particularly rich in numerous mineralized veins of barite, and is associated with other minerals (e.g. pyrite, chalcopyrite, sphalerite and galena). In order to study fracture systems in the mining zone of Jbel Tijekht, we opted for a combination of remote sensing and field investigation that became an important tool for fracture mapping and mineral exploration. This work presents a methodological approach to detect structural lineaments. For this purpose, various techniques were applied to the Landsat 8 image to improve the visibility of linear structures. After the radiometric and atmospheric corrections, the colors composites and directional filters applied to the Principal component (PC1) allow for the establishment of a lineaments map of Jbel Tijekht. The validation and the correction of lineaments are based on preexisting documents combined with field observations. Statistical analysis of the lineament map allows for identification of at least three directional fracture systems with average NS, NE-SW, and ENE-WSW orientations. NS and NE-SW systems show a high density in the largest part of the study area. These results clearly overlap different tectonic structures and existing veins. It allowed for the establishment of a geological link between lithology, fractures systems and mineralization. The fracture density can be attributed to the last variscan brittle phases, reflecting the rheology of rock units; the high fracture density is observed in competent rocks such as the Tabanit sandstones. These zones constitute a favorable area for mineralization deposits. El Jbel Tijekht es una de las estructuras geológicas más importantes de la cordillera de Ougnat-Ouzina en el Anti-Atlas Oriental. Este macizo en forma de media luna fue afectado por una red de fracturas que es visible a diferentes escalas. Es particularmente rico en vetas mineralizadas de barita y está asociado con otros minerales (por ejemplo, pirita, calcopirita, esfalerita y galena). Para estudiar los sistemas de fracturas en la zona minera de Jbel Tijekht, optamos por una combinación de teledetección e investigación de campo que se convirtió en una importante herramienta para la cartografía de las fracturas y la exploración de minerales. Este trabajo presenta un enfoque metodológico para detectar los lineamientos estructurales. Para ello, se aplicaron diversas técnicas a la imagen del Landsat 8 para mejorar la visibilidad de las estructuras lineales. Tras correcciones radiométricas y atmosféricas, los colores compuestos y los filtros direccionales aplicados al componente principal (PC1) se pudo establecer un mapa de lineamientos para Jbel Tijekht. La validación y corrección de estos lineamientos se basan en documentos preexistentes combinados con observaciones de campo. El análisis estadístico del mapa de lineamientos permite la identificación de al menos tres sistemas de fractura direccional con orientaciones promedio NS, NE-SW y ENE-WSW. Los sistemas NS y NE-SW muestran una alta densidad en la mayor parte del área de estudio. Estos resultados claramente se superponen a diferentes estructuras tectónicas y a las vetas existentes. Esto permitió establecer un vínculo geológico entre la litología, los sistemas de fracturas y la mineralización. La densidad de fracturas puede atribuirse a las últimas fases de fragilidad del orógeno varisco, lo que refleja la reología de las unidades de roca; la alta densidad de fractura se observa en las rocas competentes como las areniscas de Tabanit. Estas zonas constituyen un área favorable para los depósitos de mineralización. |
| format |
Article in Journal/Newspaper |
| author |
Saidi, Omar Mhamdi, Hicham Si Essalhi, Abdelhafid Toummite, Abdeslam |
| author_facet |
Saidi, Omar Mhamdi, Hicham Si Essalhi, Abdelhafid Toummite, Abdeslam |
| author_sort |
Saidi, Omar |
| title |
Fracture network mapping using Landsat-8 OLI images of the mining zone of Jbel Tijekht in Moroccan Eastern Anti-Atlas |
| title_short |
Fracture network mapping using Landsat-8 OLI images of the mining zone of Jbel Tijekht in Moroccan Eastern Anti-Atlas |
| title_full |
Fracture network mapping using Landsat-8 OLI images of the mining zone of Jbel Tijekht in Moroccan Eastern Anti-Atlas |
| title_fullStr |
Fracture network mapping using Landsat-8 OLI images of the mining zone of Jbel Tijekht in Moroccan Eastern Anti-Atlas |
| title_full_unstemmed |
Fracture network mapping using Landsat-8 OLI images of the mining zone of Jbel Tijekht in Moroccan Eastern Anti-Atlas |
| title_sort |
fracture network mapping using landsat-8 oli images of the mining zone of jbel tijekht in moroccan eastern anti-atlas |
| publisher |
Consejo Superior de Investigaciones Científicas |
| publishDate |
2020 |
| url |
http://estudiosgeol.revistas.csic.es/index.php/estudiosgeol/article/view/1029 https://doi.org/10.3989/egeol.43887.587 |
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ENVELOPE(-56.948,-56.948,-63.398,-63.398) ENVELOPE(-44.817,-44.817,-60.733,-60.733) ENVELOPE(-57.950,-57.950,-61.917,-61.917) ENVELOPE(-59.920,-59.920,-62.590,-62.590) |
| geographic |
Alta Rocas Roca Pirita Media Luna |
| geographic_facet |
Alta Rocas Roca Pirita Media Luna |
| genre |
Polar Science Polar Science |
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Polar Science Polar Science |
| op_source |
Estudios Geológicos; Vol. 76 No. 2 (2020); e133 Estudios Geológicos; Vol. 76 Núm. 2 (2020); e133 1988-3250 0367-0449 10.3989/egeol.16730 |
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http://estudiosgeol.revistas.csic.es/index.php/estudiosgeol/article/view/1029/1343 http://estudiosgeol.revistas.csic.es/index.php/estudiosgeol/article/view/1029/1344 http://estudiosgeol.revistas.csic.es/index.php/estudiosgeol/article/view/1029/1345 Abdullah, A.; Nassr, S. & Ghaleeb, A. (2013). Landsat ETM-7 for lineament mapping using automatic extraction technique in the SW part of Taiz Area, Yemen. Global Journal of Human-Social Science Research, 13: 35-37. https://doi.org/10.1155/2013/201757 Abrams, M.J.; Brown, D.; Lepley, L. & Sadowski, R. (1983). Remote sensing for porphyry copper deposits in southern Arizona. Economic Geology, 78: 591- 604. https://doi.org/10.2113/gsecongeo.78.4.591 Adiri, Z.; El Harti, A.; Jellouli, A.; Lhissou, R.; Maacha, L.; Azmi, M.; Zouhair, M. & Bachaoui, E.M. (2017). Comparison of Landsat-8, ASTER and Sentinel 1 satellite remote sensing data in automatic lineaments extraction: A case study of Sidi Flah- Bouskour inlier, Moroccan Anti Atlas. Advances in Space Research, 60: 2355-2367. https://doi.org/10.1016/j.asr.2017.09.006 Adiri, Z.; El Harti, A.; Jellouli, A.; Maacha, L.; Azmi, M.; Zouhair, M. & Bachaoui, E.M. (2020). Mineralogical mapping using Landsat-8 OLI, Terra ASTER and Sentinel-2A multispectral data in Sidi Flah-Bouskour inlier, Moroccan Anti-Atlas. Journal of Spatial Science, 65(1): 147-171. https://doi.org/10.1080/14498596.2018.1490213 Adiri, Z.; El Harti, A.E.; Jellouli, A.; Maacha, L. & Bachaoui, E.M. (2016). Lithological mapping using Landsat 8 OLI and Terra ASTER multispectral data in the Bas Drâa inlier, Moroccan Anti Atlas. Journal of Applied Remote Sensing, 10: 016005. https://doi.org/10.1117/1.JRS.10.016005 Ahmad Irouhani, R.; Rahimi, B.; Karimpour, M.H.; Malekzadeh Shafaroudi, A.; Afshar Najafi, S. & Pour, A.B. (2017). Fracture mapping of lineaments and recognizing their tectonic significance using SPOT-5 satellite data: A case study from the Bajestan area, Lut Block, east of Iran. Journal of African Earth Sciences, 134: 600-612. https://doi.org/10.1016/j.jafrearsci.2017.07.027 Ait Daoud, M.; Essalhi, A.; Essalhi, M. & Toummite, A. (2020). The role of variscan shortening in the control of mineralization deposition in Tadaout-Tizi n'Rsas mining district (Eastern Anti-Atlas, Morocco). Bulletin of The Mineral Research and Exploration, 161(161): 1-10. https://doi.org/10.19111/bulletinofmre.524167 Álvaro, J.J.; Aretz, M.; Benharref, M.; Hibti, M.; Pouclet, A.; El Hadi, H.; Koukaya, A.; Ettachfini, E.M. & Boudad, L. (2014a). Carte géologique du Maroc au 1/50 000, feuille Tawz-Mémoire explicatif. Notes et Mémoires du Service Géologique du Maroc, 551. Álvaro, J.J.; Benharref, M.; Hibti, M. & Boudad, L. (2014b). Carte géologique du Maroc au 1/50,000, feuille Irara. Notes et Mémoires du Service Géologique du Maroc, 552. Amer, R.; Sultan, M.; Ripperdan, R. & Encarnación, J. (2012). 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ftjegeologicos:oai:estudiosgeologicos.revistas.csic.es:article/1029 2023-05-15T18:02:49+02:00 Fracture network mapping using Landsat-8 OLI images of the mining zone of Jbel Tijekht in Moroccan Eastern Anti-Atlas Mapeo de redes de fracturas mediante imágenes Landsat-8 OLI en la zona minera de Jbel Tijekht en el Anti-Atlas oriental de Marruecos Saidi, Omar Mhamdi, Hicham Si Essalhi, Abdelhafid Toummite, Abdeslam 2020-10-19 text/html application/pdf application/xml http://estudiosgeol.revistas.csic.es/index.php/estudiosgeol/article/view/1029 https://doi.org/10.3989/egeol.43887.587 eng eng Consejo Superior de Investigaciones Científicas http://estudiosgeol.revistas.csic.es/index.php/estudiosgeol/article/view/1029/1343 http://estudiosgeol.revistas.csic.es/index.php/estudiosgeol/article/view/1029/1344 http://estudiosgeol.revistas.csic.es/index.php/estudiosgeol/article/view/1029/1345 Abdullah, A.; Nassr, S. & Ghaleeb, A. (2013). Landsat ETM-7 for lineament mapping using automatic extraction technique in the SW part of Taiz Area, Yemen. Global Journal of Human-Social Science Research, 13: 35-37. https://doi.org/10.1155/2013/201757 Abrams, M.J.; Brown, D.; Lepley, L. & Sadowski, R. (1983). Remote sensing for porphyry copper deposits in southern Arizona. Economic Geology, 78: 591- 604. https://doi.org/10.2113/gsecongeo.78.4.591 Adiri, Z.; El Harti, A.; Jellouli, A.; Lhissou, R.; Maacha, L.; Azmi, M.; Zouhair, M. & Bachaoui, E.M. (2017). Comparison of Landsat-8, ASTER and Sentinel 1 satellite remote sensing data in automatic lineaments extraction: A case study of Sidi Flah- Bouskour inlier, Moroccan Anti Atlas. Advances in Space Research, 60: 2355-2367. https://doi.org/10.1016/j.asr.2017.09.006 Adiri, Z.; El Harti, A.; Jellouli, A.; Maacha, L.; Azmi, M.; Zouhair, M. & Bachaoui, E.M. (2020). Mineralogical mapping using Landsat-8 OLI, Terra ASTER and Sentinel-2A multispectral data in Sidi Flah-Bouskour inlier, Moroccan Anti-Atlas. Journal of Spatial Science, 65(1): 147-171. https://doi.org/10.1080/14498596.2018.1490213 Adiri, Z.; El Harti, A.E.; Jellouli, A.; Maacha, L. & Bachaoui, E.M. (2016). Lithological mapping using Landsat 8 OLI and Terra ASTER multispectral data in the Bas Drâa inlier, Moroccan Anti Atlas. Journal of Applied Remote Sensing, 10: 016005. https://doi.org/10.1117/1.JRS.10.016005 Ahmad Irouhani, R.; Rahimi, B.; Karimpour, M.H.; Malekzadeh Shafaroudi, A.; Afshar Najafi, S. & Pour, A.B. (2017). Fracture mapping of lineaments and recognizing their tectonic significance using SPOT-5 satellite data: A case study from the Bajestan area, Lut Block, east of Iran. Journal of African Earth Sciences, 134: 600-612. https://doi.org/10.1016/j.jafrearsci.2017.07.027 Ait Daoud, M.; Essalhi, A.; Essalhi, M. & Toummite, A. (2020). The role of variscan shortening in the control of mineralization deposition in Tadaout-Tizi n'Rsas mining district (Eastern Anti-Atlas, Morocco). Bulletin of The Mineral Research and Exploration, 161(161): 1-10. https://doi.org/10.19111/bulletinofmre.524167 Álvaro, J.J.; Aretz, M.; Benharref, M.; Hibti, M.; Pouclet, A.; El Hadi, H.; Koukaya, A.; Ettachfini, E.M. & Boudad, L. (2014a). Carte géologique du Maroc au 1/50 000, feuille Tawz-Mémoire explicatif. Notes et Mémoires du Service Géologique du Maroc, 551. Álvaro, J.J.; Benharref, M.; Hibti, M. & Boudad, L. (2014b). Carte géologique du Maroc au 1/50,000, feuille Irara. Notes et Mémoires du Service Géologique du Maroc, 552. Amer, R.; Sultan, M.; Ripperdan, R. & Encarnación, J. (2012). Structural Architecture for Development of Marginal Extensional Sub-Basins in the Red Sea Active Rift Zone. 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Springer US, 183 pp. https://doi.org/10.1007/978-1-4899-3324-9 Derechos de autor 2020 Consejo Superior de Investigaciones Científicas (CSIC) https://creativecommons.org/licenses/by/4.0 CC-BY Estudios Geológicos; Vol. 76 No. 2 (2020); e133 Estudios Geológicos; Vol. 76 Núm. 2 (2020); e133 1988-3250 0367-0449 10.3989/egeol.16730 Structural mapping Lineaments extractions Variscan Jbel Tijekht Ougnat-Ouzina Ridge Moroccan Eastern Anti-Atlas Cartografía estructural Extracciones de lineamientos Dorsal Ougnat-Ouzina Anti-Atlas oriental marroquí info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed article Artículo revisado por pares 2020 ftjegeologicos https://doi.org/10.3989/egeol.43887.587 https://doi.org/10.3989/egeol.16730 https://doi.org/10.1016/j.jafrearsci.2018.12.002 https://doi.org/10.2174/1875413901205010083 https://doi.org/10.1111/j.2517-6161.1981.tb01155.x https://doi.org/10.1007/9 2021-05-11T23:35:29Z Jbel Tijekht is one of the most important geological structures of the Ougnat-Ouzina ridge in the Eastern Anti-Atlas. This crescent-shaped massif was affected by a network fractures that is visible at different scales. It is particularly rich in numerous mineralized veins of barite, and is associated with other minerals (e.g. pyrite, chalcopyrite, sphalerite and galena). In order to study fracture systems in the mining zone of Jbel Tijekht, we opted for a combination of remote sensing and field investigation that became an important tool for fracture mapping and mineral exploration. This work presents a methodological approach to detect structural lineaments. For this purpose, various techniques were applied to the Landsat 8 image to improve the visibility of linear structures. After the radiometric and atmospheric corrections, the colors composites and directional filters applied to the Principal component (PC1) allow for the establishment of a lineaments map of Jbel Tijekht. The validation and the correction of lineaments are based on preexisting documents combined with field observations. Statistical analysis of the lineament map allows for identification of at least three directional fracture systems with average NS, NE-SW, and ENE-WSW orientations. NS and NE-SW systems show a high density in the largest part of the study area. These results clearly overlap different tectonic structures and existing veins. It allowed for the establishment of a geological link between lithology, fractures systems and mineralization. The fracture density can be attributed to the last variscan brittle phases, reflecting the rheology of rock units; the high fracture density is observed in competent rocks such as the Tabanit sandstones. These zones constitute a favorable area for mineralization deposits. El Jbel Tijekht es una de las estructuras geológicas más importantes de la cordillera de Ougnat-Ouzina en el Anti-Atlas Oriental. Este macizo en forma de media luna fue afectado por una red de fracturas que es visible a diferentes escalas. Es particularmente rico en vetas mineralizadas de barita y está asociado con otros minerales (por ejemplo, pirita, calcopirita, esfalerita y galena). Para estudiar los sistemas de fracturas en la zona minera de Jbel Tijekht, optamos por una combinación de teledetección e investigación de campo que se convirtió en una importante herramienta para la cartografía de las fracturas y la exploración de minerales. Este trabajo presenta un enfoque metodológico para detectar los lineamientos estructurales. Para ello, se aplicaron diversas técnicas a la imagen del Landsat 8 para mejorar la visibilidad de las estructuras lineales. Tras correcciones radiométricas y atmosféricas, los colores compuestos y los filtros direccionales aplicados al componente principal (PC1) se pudo establecer un mapa de lineamientos para Jbel Tijekht. La validación y corrección de estos lineamientos se basan en documentos preexistentes combinados con observaciones de campo. El análisis estadístico del mapa de lineamientos permite la identificación de al menos tres sistemas de fractura direccional con orientaciones promedio NS, NE-SW y ENE-WSW. Los sistemas NS y NE-SW muestran una alta densidad en la mayor parte del área de estudio. Estos resultados claramente se superponen a diferentes estructuras tectónicas y a las vetas existentes. Esto permitió establecer un vínculo geológico entre la litología, los sistemas de fracturas y la mineralización. La densidad de fracturas puede atribuirse a las últimas fases de fragilidad del orógeno varisco, lo que refleja la reología de las unidades de roca; la alta densidad de fractura se observa en las rocas competentes como las areniscas de Tabanit. Estas zonas constituyen un área favorable para los depósitos de mineralización. Article in Journal/Newspaper Polar Science Polar Science Estudios Geológicos (E-Journal) Alta Rocas ENVELOPE(-56.948,-56.948,-63.398,-63.398) Roca ENVELOPE(-44.817,-44.817,-60.733,-60.733) Pirita ENVELOPE(-57.950,-57.950,-61.917,-61.917) Media Luna ENVELOPE(-59.920,-59.920,-62.590,-62.590) Estudios Geológicos 76 2 e133 |