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Geologica Acta
Geologica Acta (ISSN 1695-6133 / 1696-5728 e-ISSN) is an institutional open access journal, international and a general profile of Earth Sciences. The journal welcomes articles from both conceptual and regional levels, with special emphasis on areas of the Mediterranean, South America and the Caribbean, but without considering contributions from any region. Also encouraged the publication of theme issues that give the results of projects and international scientific meetings.

 
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2026-04-10
18:12
22 p, 11.9 MB Digital surface models derived from historical aerial imagery in highly anthropized areas applied to active fault studies (eastern Betics, Spain) / Molins-Vigatà, Júlia (Universitat de Barcelona. Departament de Dinàmica de la Terra i de l'Oceà) ; Blanch, Xabier (Universitat Politècnica de Catalunya) ; Martín-Banda, Raquel (Instituto Geológico y Minero de España (Madrid)) ; García-Sellés, David ; Gómez-Novell, Octavi (Universitat de Barcelona. Departament de Dinàmica de la Terra i de l'Oceà) ; García-Mayordomo, Julián (Instituto Geológico y Minero de España (Madrid)) ; Insua-Arévalo, Juan Miguel (Universidad Complutense de Madrid. Departamento Geodinámica, Estratigrafía y Paleontología) ; Ortuño, María (Universidad Complutense de Madrid. Departamento Geodinámica, Estratigrafía y Paleontología)
Landform recognition and surface analysis are critical in geomorphological and morphotectonic studies. In particular, the detailed study of the surface expression of active faults is essential for their characterization as seismic sources in fault-based seismic hazard models. [...]
2026 - 10.1344/GeologicaActa2026.24.5
Geologica acta, Vol. 24 (2026) , p. 1-22 (Articles)  
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2026-03-04
18:19
24 p, 10.5 MB Active faulting in the Betic External Zones (SE, Spain) : the Alcoy Fault Zone / Santamaría-Pérez, Eva (Universitat d'Alacant. Departament de Ciències de la Terra i del Medi Ambient) ; Medina-Cascales, Iván (Universitat d'Alacant. Departament de Ciències de la Terra i del Medi Ambient) ; Martin-Rojas, Iván (Universitat d'Alacant. Departament de Ciències de la Terra i del Medi Ambient) ; Alfaro García, Pedro (Universitat d'Alacant. Departament de Ciències de la Terra i del Medi Ambient)
Evidence of active faulting is presented from a fault in the eastern Betic External Zones (SE Spain). New fault data are provided for the Alcoy Fault Zone, a structure whose Quaternary activity is currently under debate. [...]
2026 - 10.1344/GeologicaActa2026.24.4
Geologica acta, Vol. 24 (2026) , p. 1-I (Articles)  
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2026-03-04
18:19
19 p, 4.7 MB Discovery of Ordovician scolecodonts from Peru, with a review of Palaeozoic jawed polychaete records from South America / Carlorosi, Josefina (Universidad Nacional de Tucumán. Instituto Superior de Correlación Geológica) ; Tonarová, Petra (Czech Geological Survey) ; Gutiérrez-Marco, Juan Carlos (Instituto de Geociencias (CSIC-UCM)) ; Hints, Olle (Tallinn University of Technology. Department of Geology)
The fossil record of jaw-bearing polychaetes from South America is scarce, and only a few occurrences of Ordovician scolecodonts have been reported so far. Here, we document a monospecific jawed polychaete assemblage from the Darriwilian Lenodus crassus conodont zone of the San José Formation in the eastern Cordillera of Peru. [...]
2026 - 10.1344/GeologicaActa2026.24.3
Geologica acta, Vol. 24 (2026) , p. 1-19 (Articles)  
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2026-03-04
18:20
7 p, 2.3 MB Electrical conductivity inside Mars calculated beneath the InSight landing site / Corchete Fernández, Victor (Universidad de Almería)
In a pioneer study, the electrical conductivity structure is determined beneath a fixed location on the Martian surface: the InSight landing site. The dataset used to attain this goal are the magnetic data recorded by InSight, from which are calculated the magnetic field variations in both high and low frequency, by spectral analysis. [...]
2026 - 10.1344/GeologicaActa2026.24.2
Geologica acta, Vol. 24 (2026) , p. 1-7 (Short note)  
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2026-02-06
18:03
25 p, 25.3 MB The Muschelkalk (Middle Triassic) in the SE sector of Sierra del Espadán (Iberian Range, Spain) / Hernaiz-Huerta, Pedro Pablo (Centro Nacional Instituto Geologico y Minero de España) ; Ramos, Adrià (Universitat de València) ; Ardévol, Lluis (Universitat d'Alacant)
Detailed mapping of the southeastern sector of the Sierra del Espadán (Eastern Iberian Range) shows that the Muschelkalk M2 intermediate unit is extensively distributed across the region, including its coastal areas. [...]
2026 - 10.1344/GeologicaActa2026.24.1
Geologica acta, Vol. 24 (2026) , p. 1-25 (Articles)  
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2026-01-28
18:13
17 p, 10.6 MB Electrical resistivity imaging to monitor water infiltration and contamination risk assessment in tailings ponds / Martín-Crespo, Tomás (Universidad Rey Juan Carlos)
This study investigates the internal structure and water content variations of the abandoned tailings ponds in the Hiendelaencina Ag-mining district, Spain, using Electrical Resistivity Imaging (ERI). [...]
2025 (David, Gómez-Ortiz) (Silvia, Martín-Velázquez) (Inmaculada, Rodríguez-Santalla) (Cristina, De Ignacio-San José) (Pedro, Martínez-Pagán) (Marcos, Martínez-Segura) - 10.1344/GeologicaActa2025.23.30
Geologica acta, Vol. 23 (2025) , p. 1-17 (Tribute to Esteve Cardellach)  
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2026-01-07
21:10
21 p, 1.1 MB Fracture-related dolostones replacing Upper Jurassic-lowermost Cretaceous syn-rift deposits in the eastern Iberian Chain (eastern Spain) / Travé i Herrero, Anna (Universitat de Barcelona) ; Salas, Ramon (Universitat de Barcelona) ; Cantarero, Irene (Universitat de Barcelona) ; Baqués, Vinyet (Universitat de Barcelona) ; Cruset, David (Geociències Barcelona) ; Gomez-Rivas, Enrique (Universitat de Barcelona) ; Martín, Juan Diego (Martín Martín) (Universitat de Barcelona) ; Nadal, Judit ; Playà, Elisabet (Universitat de Barcelona)
Upper Jurassic and Lower Cretaceous limestones and dolostones serve as hydrocarbon reservoirs in the offshore area of NE Spain. Since similar dolomitized rocks crop out in the adjacent onshore Maestrat Basin in the SE Iberian Range, understanding the dolomitization and other diagenetic processes is key to assessing reservoir properties. [...]
Upper Jurassic and Lower Cretaceous limestones and dolostones serve as hydrocarbon reservoirs in the offshore area of NE Spain. Since similar dolomitized rocks crop out in the adjacent onshore Maestrat Basin in the SE Iberian Range, understanding the dolomitization and other diagenetic processes is key to assessing reservoir properties. [...]
2025 - 10.1344/GeologicaActa2025.23.29
Geologica acta, Vol. 23 (2025) (Carbonate successions from Iberia and the Caribbean - Homage to Ramon Salas)  
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2025-12-19
18:10
21 p, 22.7 MB Strontium-isotope stratigraphy of the Aptian-Albian transition in the western Maestrat Basin (E Iberia) / Bover-Arnal, Telm (Universitat de Barcelona) ; Moreno Bedmar, Josep Anton (Universidad Nacional Autónoma de México) ; Salas, Ramon (Universitat de Barcelona) ; Pascual-Cebrian, Enric (Universitat de Barcelona)
The Aptian-Albian transition in the Maestrat Basin (E Iberian Chain) encompasses two lithostratigraphic units: Benassal and Escucha. In some sectors of the basin, such as the western Galve and Las Parras sub-basins, this stratigraphic interval recorded a progressive shift from widespread carbonate platform settings to coastal siliciclastic-influenced and coal-bearing environments. [...]
2025 - 10.1344/GeologicaActa2025.23.27
Geologica acta, Vol. 23 (2025) (Carbonate successions from Iberia and the Caribbean - Homage to Ramon Salas)  
Detailed record - Creative Commons
2026-01-09
18:10
Trace element contents in bornite, chalcopyrite and pyrite (LA-ICP-MS) from Miocene porphyry copper-gold deposits from Metaliferi Mountains, Romania / Calugaru, Mihaela-Elena (Institutul Geologic al României (Romania)) ; Munteanu, Marian (Institutul Geologic al României (Romania))
In porphyry systems, valuable elements such as Au, Ag, Te, Se and Bi are found in trace contents associated with Cu and Fe sulfides. The relations between sulfide and the trace element contents, as well as the role of physicochemical factors in the uptake of different trace elements are still being assessed. [...]
2025 (Wälle, Markus) (Isac, Anca) - 10.1344/GeologicaActa2025.23.28
Geologica acta, Vol. 23 (2025) , p. 1-18 (Articles)  
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2025-11-26
04:41
11 p, 2.3 MB Grain-size reduction reduces the impact of viscous shear heating in lithospheric mantle shear zones / Ruh, Jonas B. (Instituto de Ciencias del Mar - CSIC)
Active plate tectonics require weak boundaries that accommodate large strain over long time periods. Many studies argue that shear heating converted from dissipated mechanical energy may be responsible for the necessary weakening in the mantle lithosphere to initiate and sustain weak plate boundaries. [...]
2025 - 10.1344/GeologicaActa2025.23.26
Geologica acta, Vol. 23 (2025) (Articles)  
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