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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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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
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
Geologica acta, Vol. 23 (2025) (Articles)  
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2025-11-18
04:40
26 p, 17.1 MB Shortening-controlled magnetic fabrics in the Alpine thrust front of the Cantabrian Mountains / Oliva-Urcia, Belén (Universidad de Zaragoza) ; Román-Berdiel, Teresa (Universidad de Zaragoza) ; Torres-López, Sara (Universidad Autónoma de Madrid) ; Villalaín, Juan J. (Universidad de Burgos) ; Casas-Sainz, Antonio (Universidad de Zaragoza)
The magnetic fabrics (or anisotropy of magnetic susceptibility) are used in this work to decipher thrust kinematics in the Cantabrian (western) Pyrenees. Most of the analyzed rocks (total of 51 sites) correspond to the Mesozoic rifting and post-rifting stages (Triassic, Jurassic and Cretaceous) rocks in the Asturian-Leonese region, whose alpine structure is controlled by south-verging, basement-involved thrusts. [...]
2025
Geologica acta, Vol. 23 (2025) (Articles)  
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2025-11-01
17:54
22 p, 38.6 MB Evolution of microstructure and texture in small-scale high-temperature shear zone in marble from Ossa Morena Zone (Iberian Variscan Belt) / Machek, Matěj (Institute of Geophysics (República Txeca)) ; Roxerová, Zuzana (Institute of Geophysics (República Txeca)) ; Kusbach, Vladimír K (Institute of Geophysics (República Txeca)) ; Kučeráková, Monika (Czech Technical University (República Txeca)) ; Vratislav, Stanislav (Czech Technical University (República Txeca))
This research investigates microstructures and crystallographic preferred orientation in a high-temperature Variscan small-scale shear zone within marbles from the south-western Ossa-Morena Zone (Iberian Variscan Belt). [...]
2025 - 10.1344/GeologicaActa2025.23.24
Geologica acta, Vol. 23 (2025) (Articles)  
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2025-10-30
03:51
18 p, 12.2 MB Basement structural controls on the Jurassic sedimentary sequences in the Tampico-Misantla basin, Northeastern Mexico from a 3-D seismic reflection study / Canales-Garcia, Iza (Universidad Nacional Autónoma de México) ; Pérez-Cruz, Guillermo (Universidad Nacional Autónoma de México) ; Urrutia-Fucugauchi, Jaime (Universidad Nacional Autónoma de México) ; Luna-Gomez, Victor (Universidad Nacional Autónoma de México)
The Tampico-Misantla basin is a mature oil rich province in northeastern Mexico with large unconventional oil plays currently being revitalized. Results of a 3-D seismic reflection study of the basement and Jurassic sequences are used to analyze the basement influence on sediment sequence and basin structure, by mapping the seismo-stratigraphic horizons for the (Tithonian) Pimienta, (Kimmeridigian) Taman/San Andrés, (Oxfordian) Santiago, (Callovian) Tepexic/Huehuetepec and (Bathonian) Cahuasas formations. [...]
2025
Geologica acta, Vol. 23 (2025) (Articles)  
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2025-10-29
09:08
55 p, 29.3 MB Lower Miocene carbonate platforms of the Falcón Basin (NW Venezuela) compared to the offshore Perla Field reservoir / Albert-Villanueva, Eduard (Denison Mines Corp) ; Bover-Arnal, Telm (Universitat de Barcelona) ; Ferràndez i Cañadell, Carles (Universitat de Barcelona. Departament de Dinàmica de la Terra i de l'Oceà) ; González, Lenin (Universidad Central de Venezuela) ; Esteban, Mateu (Universitat de Barcelona) ; Salas, Ramon
Based on field data collected in the northern and southern Falcón Basin (Venezuela), this paper presents a comprehensive monograph that reports on the age and sedimentary evolution of the San Luis and Churuguara formations. [...]
2025 - 10.1344/GeologicaActa2025.23.21
Geologica acta, Vol. 23 (2025) , p. 1-XIII (Carbonate successions from Iberia and the Caribbean - Homage to Ramon Salas)  
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2025-10-04
09:19
17 p, 3.7 MB Geochemical characterization and tectonic significance of the A-type granite in the Tikiba Granitic Complex (TGC), Northwest Odisha, India / Sethy, Pratap (Wadia Institute of Himalayan Geology (Índia)) ; Naik, Ashutosh (Sambalpur University (Índia)) ; Nayak, Ranjit (Sri Sri University (Índia))
The Precambrian tectonic evolution and growth of continental crust in the southern part of North Odisha Singhbhum Craton discusses the possible petrogenetic process and source characteristics. These granites are in the contact area between the Eastern Ghat granulite belt and the North Odisha Singhbhum Craton and Archean Deogarh group of rocks. [...]
2025 - 10.1344/GeologicaActa2025.23.20
Geologica acta, Vol. 23 (2025) (Articles)  
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2025-09-27
10:22
18 p, 11.9 MB Linking early diagenesis and relative sea-level changes in ancient corals : a multiproxy approach from the Benassal Formation (Lower Cretaceous, Maestrat Basin, E Spain) / Tomás, Sara (Universitat Autònoma de Barcelona) ; Parcerisa Duocastella, David (Universitat Politècnica de Catalunya) ; Cantarero, Irene (Universitat de Barcelona. Departament de Mineralogia, Petrologia i Geologia Aplicada) ; Baqués, Vinyet (Universitat de Barcelona. Departament de Mineralogia, Petrologia i Geologia Aplicada) ; Salas, Ramon (Universitat de Barcelona) ; Travé i Herrero, Anna (Universitat de Barcelona. Departament de Mineralogia, Petrologia i Geologia Aplicada)
The Aptian shallow-water carbonate platform of the Benassal Formation in eastern Spain (Maestrat Basin) contains facies dominated by scleractinian corals. Corals and coral reefs are widely used as environmental archives; however, the effects of their complex diagenetic evolution are a major factor impacting reliable reconstructions of the environments. [...]
2025 - 10.1344/GeologicaActa2025.23.19
Geologica acta, Vol. 23 (2025) , p. 1-18 (Carbonate successions from Iberia and the Caribbean - Homage to Ramon Salas)  
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2025-08-30
11:41
16 p, 18.7 MB Coralgal buildup in a mixed carbonate-siliciclastic succession of the upper Eocene Sant Martí Xic Formation (Orís, Vic, SE Ebro basin, Spain) / Mancini, Alessandro (Università degli Studi di Roma "La Sapienza") ; Brandano, Marco (Università degli Studi di Roma "La Sapienza") ; Gaglianone, Giovanni (Università degli Studi di Roma "La Sapienza") ; Mannetta, Domenico (Università degli Studi di Roma "La Sapienza") ; Ferràndez i Cañadell, Carles (Universitat de Barcelona. Departament de Dinàmica de la Terra i de l'Oceà)
The Upper Eocene San Martí Xic Formation (Orís, Vic, SE Ebro basin, Spain) shows coralgal buildup developed in mixed carbonate siliciclastic deposits. During the upper Eocene, the sedimentation in the Orís area was strongly influenced by global and local factors associated with the Ebro Basin evolution. [...]
2025 - 10.1344/GeologicaActa2025.23.15
Geologica acta, Vol. 23 (2025) , p. 1-16 (Carbonate successions from Iberia and the Caribbean - Homage to Ramon Salas)  
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2025-08-30
11:41
22 p, 1.4 MB Myths and models of rudist ecology / Skelton, Peter W. ; Gili Folch, Eulàlia
Characterizing the ecology of rudist bivalves has long proved challenging, given their baroque shell shapes and the inconvenience of their extinction. Contrasting interpretations have taken hold in the literature via two different approaches. [...]
2025 - 10.1344/GeologicaActa2025.23.17
Geologica acta, Vol. 23 (2025) , p. 1-22 (Carbonate successions from Iberia and the Caribbean - Homage to Ramon Salas)  
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