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Geologica Acta
Geologica Acta (ISSN 1695-6133 / ISSN electrònic 1696-5728) és una revista institucional i d'accès obert, internacional i amb un perfil generalista de Ciències de la Terra. La revista acull tant articles de tipus conceptual com regional, amb especial èmfasi en les zones de la Mediterrània, Sud Amèrica i el Carib, però sense deixar de considerar contribucions de qualsevol regió del món. Igualment s'incentiva la publicació de números temàtics que donin a conèixer els resultats de projectes o reunions científiques internacionals.

 
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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)  
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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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2025-11-21
04:11
27 p, 32.3 MB Tectonic geomorphology of the Şemdinli Yüksekova fault zone (SYFZ) and Başkale fault zone (BFZ) (SE Turkey) : evidence from morphometric analysis and neotectonic structures / Mutlu, Sacit (Van Yuzuncu Yıl University (Turquia))
The collision between the Arabian and Eurasian plates resulted in the uplift of The East Anatolian Province of Shortening (EAPS). Within the EAPS, the faulting mechanism is characterized by right- and left-lateral strike-slip faults, thrust faults, and a relatively limited occurrence of normal faults. [...]
2025 - 10.1344/GeologicaActa2025.23.23
Geologica acta, Vol. 23 (2025) (Articles)  
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