Articles | Volume 16, issue 4/5
https://doi.org/10.5194/se-16-251-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-16-251-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
13 May 2025
Research article |
| 13 May 2025
| 13 May 2025
The geological structures of the Pyrenees and their peripheral basins examined through EMAG2v2 magnetic data
Instituto Andaluz de Ciencias de la Tierra, IACT-CSIC, 18100 Armilla, Granada, Spain
Instituto Geológico y Minero de España (IGME), CSIC, 28003 Madrid, Madrid, Spain; 28760 Tres Cantos, Madrid, Spain; 50059 Zaragoza, Aragón, Spain
Ruth Soto
Instituto Geológico y Minero de España (IGME), CSIC, 28003 Madrid, Madrid, Spain; 28760 Tres Cantos, Madrid, Spain; 50059 Zaragoza, Aragón, Spain
Conxi Ayala
Geosciences Barcelona (GEO3BCN), CSIC, Lluís Solé i Sabarís s/n, 08028 Barcelona, Spain
Tania Mochales
Instituto Geológico y Minero de España (IGME), CSIC, 28003 Madrid, Madrid, Spain; 28760 Tres Cantos, Madrid, Spain; 50059 Zaragoza, Aragón, Spain
Félix M. Rubio
Instituto Geológico y Minero de España (IGME), CSIC, 28003 Madrid, Madrid, Spain; 28760 Tres Cantos, Madrid, Spain; 50059 Zaragoza, Aragón, Spain
Pilar Clariana
Instituto Geológico y Minero de España (IGME), CSIC, 28003 Madrid, Madrid, Spain; 28760 Tres Cantos, Madrid, Spain; 50059 Zaragoza, Aragón, Spain
Carmen Rey-Moral
Instituto Geológico y Minero de España (IGME), CSIC, 28003 Madrid, Madrid, Spain; 28760 Tres Cantos, Madrid, Spain; 50059 Zaragoza, Aragón, Spain
Juliana Martín-León
Instituto Geológico y Minero de España (IGME), CSIC, 28003 Madrid, Madrid, Spain; 28760 Tres Cantos, Madrid, Spain; 50059 Zaragoza, Aragón, Spain
Related authors
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Montserrat Torne, Tiago M. Alves, Ivone Jiménez-Munt, Joao Carvalho, Conxi Ayala, Elsa C. Ramalho, Angela María Gómez-García, Hugo Matias, Hanneke Heida, Abraham Balaguera, José Luis García-Lobón, and Jaume Vergés
Earth Syst. Sci. Data, 17, 1275–1293, https://doi.org/10.5194/essd-17-1275-2025, https://doi.org/10.5194/essd-17-1275-2025, 2025
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Sediments are like history books for geologists and geophysicists. By studying them, we can learn about past environments, sea level and climate changes, and where the sediments came from. To aid in understanding the geology, georesources, and potential hazards in the Iberian Peninsula and its surrounding seas, we present the SedDARE-IB sediment data repository. As an application in geothermal exploration, we investigate how sediment thickness affects the depth of the 150 °C isotherm.
Joaquín García-Sansegundo, Pilar Clariana, Álvaro Rubio-Ordóñez, and Ruth Soto
EGUsphere, https://doi.org/10.5194/egusphere-2024-3663, https://doi.org/10.5194/egusphere-2024-3663, 2025
Preprint retracted
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In this work we have dated a laminar intrusion located in the Axial Zone of the Pyrenees, obtaining an age of 274±1.5 Ma. The Palaeozoic rocks outcropping in this area were deformed by the Variscan Orogeny (380–290 Ma) and later by the Alpine Orogeny (83–22 Ma). This intrusion is folded by gentle folds. The age obtained indicates that the deforming folds correspond to Alpine-age structures. This is key to understanding the geological evolution of the Pyrenees.
Juvenal Andrés, Juan Alcalde, Puy Ayarza, Eduard Saura, Ignacio Marzán, David Martí, José Ramón Martínez Catalán, Ramón Carbonell, Andrés Pérez-Estaún, José Luis García-Lobón, and Félix Manuel Rubio
Solid Earth, 7, 827–841, https://doi.org/10.5194/se-7-827-2016, https://doi.org/10.5194/se-7-827-2016, 2016
Related subject area
Subject area: Crustal structure and composition | Editorial team: Geodesy, gravity, and geomagnetism | Discipline: Geodynamics
Magmatic underplating associated with Proterozoic basin formation: insights from gravity study over the southern margin of the Bundelkhand Craton, India
The crustal structure of the Longmenshan fault zone and its implications for seismogenesis: new insight from aeromagnetic and gravity data
Crustal structure of the Volgo–Uralian subcraton revealed by inverse and forward gravity modelling
Interpolation of magnetic anomalies over an oceanic ridge region using an equivalent source technique and crust age model constraint
Gravity modeling of the Alpine lithosphere affected by magmatism based on seismic tomography
The preserved plume of the Caribbean Large Igneous Plateau revealed by 3D data-integrative models
Mapping undercover: integrated geoscientific interpretation and 3D modelling of a Proterozoic basin
Density distribution across the Alpine lithosphere constrained by 3-D gravity modelling and relation to seismicity and deformation
3-D crustal density model of the Sea of Marmara
A high-resolution lithospheric magnetic field model over southern Africa based on a joint inversion of CHAMP, Swarm, WDMAM, and ground magnetic field data
Density structure and isostasy of the lithosphere in Egypt and their relation to seismicity
Ananya Parthapradip Mukherjee and Animesh Mandal
Solid Earth, 15, 711–729, https://doi.org/10.5194/se-15-711-2024, https://doi.org/10.5194/se-15-711-2024, 2024
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Global gravity data are used to develop 2D models and a Moho depth map from 3D inversion, depicting the crustal structure below the region covered by Proterozoic sedimentary basins, south of the Bundelkhand Craton in central India. The observed thick mafic underplated layer above the Moho indicates Proterozoic plume activity. Thus, the study offers insights into the crustal configuration of this region, illustrating the geodynamic processes that led to the formation of the basins.
Hai Yang, Shengqing Xiong, Qiankun Liu, Fang Li, Zhiye Jia, Xue Yang, Haofei Yan, and Zhaoliang Li
Solid Earth, 14, 1289–1308, https://doi.org/10.5194/se-14-1289-2023, https://doi.org/10.5194/se-14-1289-2023, 2023
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The Wenchuan (Ms 8.0) and Lushan (Ms 7.0) earthquakes show different geodynamic features and form a 40–60 km area void of aftershocks for both earthquakes. The inverse models suggest that the downward-subducted basement of the Sichuan Basin is irregular in shape and heterogeneous in magnetism and density. The different focal mechanisms of the two earthquakes and the genesis of the seismic gap may be closely related to the differential thrusting mechanism caused by basement heterogeneity.
Igor Ognev, Jörg Ebbing, and Peter Haas
Solid Earth, 13, 431–448, https://doi.org/10.5194/se-13-431-2022, https://doi.org/10.5194/se-13-431-2022, 2022
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We present a new 3D crustal model of Volgo–Uralia, an eastern segment of the East European craton. We built this model by processing the satellite gravity data and using prior crustal thickness estimation from regional seismic studies to constrain the results. The modelling revealed a high-density body on the top of the mantle and otherwise reflected the main known features of the Volgo–Uralian crustal architecture. We plan to use the obtained model for further geothermal analysis of the region.
Duan Li, Jinsong Du, Chao Chen, Qing Liang, and Shida Sun
Solid Earth Discuss., https://doi.org/10.5194/se-2021-117, https://doi.org/10.5194/se-2021-117, 2021
Revised manuscript not accepted
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Oceanic magnetic anomalies are generally carried out using only few survey lines and thus there are many areas with data gaps. Traditional interpolation methods based on the morphological characteristics of data are not suitable for data with large gaps. The use of dual-layer equivalent-source techniques may improve the interpolation of magnetic anomaly fields in areas with sparse data which gives a good consideration to the extension of the magnetic lineation feature.
Davide Tadiello and Carla Braitenberg
Solid Earth, 12, 539–561, https://doi.org/10.5194/se-12-539-2021, https://doi.org/10.5194/se-12-539-2021, 2021
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We present an innovative approach to estimate a lithosphere density distribution model based on seismic tomography and gravity data. In the studied area, the model shows that magmatic events have increased density in the middle to lower crust, which explains the observed positive gravity anomaly. We interpret the densification through crustal intrusion and magmatic underplating. The proposed method has been tested in the Alps but can be applied to other geological contexts.
Ángela María Gómez-García, Eline Le Breton, Magdalena Scheck-Wenderoth, Gaspar Monsalve, and Denis Anikiev
Solid Earth, 12, 275–298, https://doi.org/10.5194/se-12-275-2021, https://doi.org/10.5194/se-12-275-2021, 2021
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The Earth’s crust beneath the Caribbean Sea formed at about 90 Ma due to large magmatic activity of a mantle plume, which brought molten material up from the deep Earth. By integrating diverse geophysical datasets, we image for the first time two fossil magmatic conduits beneath the Caribbean. The location of these conduits at 90 Ma does not correspond with the present-day Galápagos plume. Either this mantle plume migrated in time or these conduits were formed above another unknown plume.
Mark D. Lindsay, Sandra Occhipinti, Crystal Laflamme, Alan Aitken, and Lara Ramos
Solid Earth, 11, 1053–1077, https://doi.org/10.5194/se-11-1053-2020, https://doi.org/10.5194/se-11-1053-2020, 2020
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Integrated interpretation of multiple datasets is a key skill required for better understanding the composition and configuration of the Earth's crust. Geophysical and 3D geological modelling are used here to aid the interpretation process in investigating anomalous and cryptic geophysical signatures which suggest a more complex structure and history of a Palaeoproterozoic basin in Western Australia.
Cameron Spooner, Magdalena Scheck-Wenderoth, Hans-Jürgen Götze, Jörg Ebbing, György Hetényi, and the AlpArray Working Group
Solid Earth, 10, 2073–2088, https://doi.org/10.5194/se-10-2073-2019, https://doi.org/10.5194/se-10-2073-2019, 2019
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By utilising both the observed gravity field of the Alps and their forelands and indications from deep seismic surveys, we were able to produce a 3-D structural model of the region that indicates the distribution of densities within the lithosphere. We found that the present-day Adriatic crust is both thinner and denser than the European crust and that the properties of Alpine crust are strongly linked to their provenance.
Ershad Gholamrezaie, Magdalena Scheck-Wenderoth, Judith Bott, Oliver Heidbach, and Manfred R. Strecker
Solid Earth, 10, 785–807, https://doi.org/10.5194/se-10-785-2019, https://doi.org/10.5194/se-10-785-2019, 2019
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Based on geophysical data integration and 3-D gravity modeling, we show that significant density heterogeneities are expressed as two large high-density bodies in the crust below the Sea of Marmara. The location of these bodies correlates spatially with the bends of the main Marmara fault, indicating that rheological contrasts in the crust may influence the fault kinematics. Our findings may have implications for seismic hazard and risk assessments in the Marmara region.
Foteini Vervelidou, Erwan Thébault, and Monika Korte
Solid Earth, 9, 897–910, https://doi.org/10.5194/se-9-897-2018, https://doi.org/10.5194/se-9-897-2018, 2018
Mikhail K. Kaban, Sami El Khrepy, and Nassir Al-Arifi
Solid Earth, 9, 833–846, https://doi.org/10.5194/se-9-833-2018, https://doi.org/10.5194/se-9-833-2018, 2018
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We present an integrative model of the crust and upper mantle of Egypt based on an analysis of gravity, seismic, and geological data. These results are essential for deciphering the link between the dynamic processes in the Earth system and near-surface processes (particularly earthquakes) that influence human habitat. We identified the distinct fragmentation of the lithosphere of Egypt in several blocks. This division is closely related to the seismicity patterns in this region.
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Short summary
In this work we compare magnetic maps obtained from the EMAG2v2 (Earth Magnetic Anomaly Grid 2 arcmin resolution) magnetic-intensity data with the main geological structures and units of the Pyrenees and adjacent areas. The magnetic-response arrangement for the different domains mimics the main structural lineaments and highlights the occurrence of major magnetic anomalies linked to specific geological bodies.
In this work we compare magnetic maps obtained from the EMAG2v2 (Earth Magnetic Anomaly Grid 2...
