Surface and subsurface geology of the Hontomín structure, Western Pyrenees
A detailed geological study was conducted in the Hontomín area in the western Pyrenees, Northern Spain, focusing on structural characterization by integrating available subsurface data with a newly developed surface geological map. It reveals a relatively simple surface structure, with the Upper Cre...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2025-12-01
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| Series: | Journal of Maps |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/17445647.2025.2540553 |
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| author | Eloi Carola Eduard Roca Anna Quintà Josep Anton Muñoz |
| author_facet | Eloi Carola Eduard Roca Anna Quintà Josep Anton Muñoz |
| author_sort | Eloi Carola |
| collection | DOAJ |
| description | A detailed geological study was conducted in the Hontomín area in the western Pyrenees, Northern Spain, focusing on structural characterization by integrating available subsurface data with a newly developed surface geological map. It reveals a relatively simple surface structure, with the Upper Cretaceous generally dipping gently eastward, except at the southern margin, where they are deformed into tight E-W-trending folds. In contrast, the unconformable Cenozoic layers dip only a few degrees southward. However, seismic data interpretation reveals a much more complex subsurface structure. It is dominated by a broad dome, cored by Upper Triassic salt, which has significantly influenced the overlying stratigraphy and structure. Above the salt, the Jurassic and Lower Cretaceous units exhibit moderate folding, a deformation style that is not apparent at the surface. The deep structure is controlled by a major E-W trending thrust fault, which is not clearly expressed at surface except through small-scale, tight folds aligned in the same direction. This study highlights the importance of integrating surface mapping with geophysical data, both for accurately interpreting subsurface geology when planning for CO₂ injection operations. |
| format | Article |
| id | doaj-art-d48e1ff60cb04dea8e514d4196b8246c |
| institution | Kabale University |
| issn | 1744-5647 |
| language | English |
| publishDate | 2025-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Maps |
| spelling | doaj-art-d48e1ff60cb04dea8e514d4196b8246c2025-08-20T03:40:42ZengTaylor & Francis GroupJournal of Maps1744-56472025-12-0121110.1080/17445647.2025.2540553Surface and subsurface geology of the Hontomín structure, Western PyreneesEloi Carola0Eduard Roca1Anna Quintà2Josep Anton Muñoz3Departament de Dinàmica de la Terra i de l´Oceà, Facultat de Ciències de la Terra, Institut de Recerca UB-Geomodels, Universitat de Barcelona, Barcelona, SpainDepartament de Dinàmica de la Terra i de l´Oceà, Facultat de Ciències de la Terra, Institut de Recerca UB-Geomodels, Universitat de Barcelona, Barcelona, SpainDepartament de Dinàmica de la Terra i de l´Oceà, Facultat de Ciències de la Terra, Institut de Recerca UB-Geomodels, Universitat de Barcelona, Barcelona, SpainDepartament de Dinàmica de la Terra i de l´Oceà, Facultat de Ciències de la Terra, Institut de Recerca UB-Geomodels, Universitat de Barcelona, Barcelona, SpainA detailed geological study was conducted in the Hontomín area in the western Pyrenees, Northern Spain, focusing on structural characterization by integrating available subsurface data with a newly developed surface geological map. It reveals a relatively simple surface structure, with the Upper Cretaceous generally dipping gently eastward, except at the southern margin, where they are deformed into tight E-W-trending folds. In contrast, the unconformable Cenozoic layers dip only a few degrees southward. However, seismic data interpretation reveals a much more complex subsurface structure. It is dominated by a broad dome, cored by Upper Triassic salt, which has significantly influenced the overlying stratigraphy and structure. Above the salt, the Jurassic and Lower Cretaceous units exhibit moderate folding, a deformation style that is not apparent at the surface. The deep structure is controlled by a major E-W trending thrust fault, which is not clearly expressed at surface except through small-scale, tight folds aligned in the same direction. This study highlights the importance of integrating surface mapping with geophysical data, both for accurately interpreting subsurface geology when planning for CO₂ injection operations.https://www.tandfonline.com/doi/10.1080/17445647.2025.2540553Western PyreneesHontomín salt structureCO2 storagegeological mapping |
| spellingShingle | Eloi Carola Eduard Roca Anna Quintà Josep Anton Muñoz Surface and subsurface geology of the Hontomín structure, Western Pyrenees Journal of Maps Western Pyrenees Hontomín salt structure CO2 storage geological mapping |
| title | Surface and subsurface geology of the Hontomín structure, Western Pyrenees |
| title_full | Surface and subsurface geology of the Hontomín structure, Western Pyrenees |
| title_fullStr | Surface and subsurface geology of the Hontomín structure, Western Pyrenees |
| title_full_unstemmed | Surface and subsurface geology of the Hontomín structure, Western Pyrenees |
| title_short | Surface and subsurface geology of the Hontomín structure, Western Pyrenees |
| title_sort | surface and subsurface geology of the hontomin structure western pyrenees |
| topic | Western Pyrenees Hontomín salt structure CO2 storage geological mapping |
| url | https://www.tandfonline.com/doi/10.1080/17445647.2025.2540553 |
| work_keys_str_mv | AT eloicarola surfaceandsubsurfacegeologyofthehontominstructurewesternpyrenees AT eduardroca surfaceandsubsurfacegeologyofthehontominstructurewesternpyrenees AT annaquinta surfaceandsubsurfacegeologyofthehontominstructurewesternpyrenees AT josepantonmunoz surfaceandsubsurfacegeologyofthehontominstructurewesternpyrenees |