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.
Darreres entrades:
2016-06-29
08:15

15 p, 1.6 MB
Improving the coastal record of tsunamis in the ESI-07 Scale : Tsunami Environmental Effects Scale (TEE-16 Scale) / Lario, J. (Universidad Nacional de Educación a Distancia (Espanya)) ; Bardaji, T. (Universidad de Alcalá. U.D. Geología) ; Silva, P. G. (Universidad de Salamanca. Departamento de Geología) ; Zazo, C. (Consejo Superior de Investigaciones Científicas (Espanya). Museo Nacional de Ciencias Naturales) ; Goy, J. L. (Universidad de Salamanca. Departamento de Geología)
This paper discusses possibilities to improve the Environmental Seismic Intensity Scale (ESI-07 scale), a scale based on the effects of earthquakes in the environment. This scale comprises twelve intensity degrees and considers primary and secondary effects, one of them the occurrence of tsunamis. [...]
2016 - 10.1344/GeologicaActa2016.14.2.6
Geologica acta, Vol. 14 Núm. 2 (June 2016) , p. 179-193 (Articles)  
2016-06-29
08:15

23 p, 9.1 MB
Structure of an inverted basin from subsurface and field data : the Late Jurassic- Early Cretaceous Maestrat Basin (Iberian Chain) / Nebot Miralles, Marina (Universitat de Barcelona. Departament de Geodinàmica i Geofísica) ; Guimerà i Rosso, Joan J. (Universitat de Barcelona. Departament de Geodinàmica i Geofísica)
The Maestrat Basin experienced two main rifting events: Late Permian-Late Triassic and Late Jurassic-Early Cretaceous, and was inverted during the Cenozoic Alpine orogeny. During the inversion, an E-W-trending, N-verging fold-and-thrust belt developed along its northern margin, detached in the Triassic evaporites, while southwards it also involved the Variscan basement. [...]
2016 - 10.1344/GeologicaActa2016.14.2.5
Geologica acta, Vol. 14 Núm. 2 (June 2016) , p. 155-177 (Articles)  
2016-06-29
08:15

16 p, 1.6 MB
Response of alluvial systems to Late Pleistocene climate changes recorded by environmental magnetism in the Añavieja Basin (Iberian Range, NE Spain) / Oliva Urcia, B. (Consejo Superior de Investigaciones Científicas (España). Instituto Pirenaico de Ecología) ; Muñoz Jiménez, Arsenio (Universidad de Zaragoza. Departamento de Ciencias de la Tierra) ; Larrasoaña, J.C. (Instituto Geológico y Minero de España) ; Luzón Aguado, Mª Aránzazu (Universidad de Zaragoza. Departamento de Ciencias de la Tierra) ; Pérez García, Antonio (Universidad de Zaragoza. Departamento de Ciencias de la Tierra) ; González Rodríguez, Ángel (Universidad de Zaragoza. Departamento de Ciencias de la Tierra) ; Jiang, Z. (Chinese Academy of Sciences. Institute of Geology and Geophysics) ; Liu, Q. (Chinese Academy of Sciences. Institute of Geology and Geophysics) ; Román Berdiel, María Teresa (Universidad de Zaragoza. Departamento de Ciencias de la Tierra)
Environmental magnetic proxies were analyzed in a relatively monotonous, ~25. 3m thick alluvial sedimentary sequence drilled in the Añavieja Basin (NE Spain). Results from the core AÑ2 suggest that the concentrationdependent magnetic parameters mainly reflect variations in the content of detrital magnetite, sourced in the catchment rocks and soils of the basin, via changes in the dynamics of alluvial fans due to temperature changes in the northern hemisphere during the Late Pleistocene. [...]
2016 - 10.1344/GeologicaActa2016.14.2.4
Geologica acta, Vol. 14 Núm. 2 (June 2016) , p. 139-154 (Articles)  
2016-06-29
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29 p, 8.4 MB
Glomospirella cantabrica n. sp., and other benthic foraminifera from Lower Cretaceous Urgonian-type carbonates of Cantabria, Spain : biostratigraphic implications / Schlagintweit, F. ; Rosales, I. (Instituto Geológico y Minero de España) ; Najarro, M. (Instituto Geológico y Minero de España)
A new benthic foraminifer is described as Glomospirella cantabrica n. sp. from several sections of the Upper Aptian Reocín Formation and one occurrence in the lowermost Albian Las Peñosas Formation of Cantabria (northern Spain). [...]
2016 - 10.1344/GeologicaActa2016.14.2.3
Geologica acta, Vol. 14 Núm. 2 (June 2016) , p. 113-138 (Articles)  
2016-06-29
08:15

11 p, 2.0 MB
First record of the mangrove palm Nypa from the northeastern Ebro Basin, Spain : with taphonomic criteria to evaluate the drifting duration. / Moreno Domínguez, R. (Universidad de Zaragoza. Departamento de Ciencias de la Tierra) ; Cascales Miñana, B. (Université de Liège. Département de Géologie) ; Ferrer Plou, José Javier (Universidad de Zaragoza. Departamento de Ciencias de la Tierra) ; Díez Ferrer, José Bienvenido (Universidad de Vigo. Departamento Geociencias Marinas y Ordenación del Territorio)
Fossil fruits pertaining to the mangrove palm genus Nypa Steck, (Arecaceae, Arecales) were collected from a new plant-bearing assemblage in the Arguis Formation (Fm. ), northeastern Ebro Basin (Arguis, Huesca Province, Spain). [...]
2016 - 10.1344/GeologicaActa2016.14.2.2
Geologica acta, Vol. 14 Núm. 2 (June 2016) , p. 101-111 (Articles)  
2016-06-29
08:15

22 p, 8.7 MB
Gas hydrates distribution in the Shenhu Area, northern South China Sea : comparisons between the eight drilling sites with gas-hydrate petroleum system / Su, M. (Chinese Academy of Sciences. Guangzhou Key Laboratory of New and Renewable Energy Research and Development) ; Wang, H. (Guangzhou Marine Geological Survey (Guangzhou, Xina)) ; Sha, Z. (Guangzhou Marine Geological Survey (Guangzhou, Xina)) ; Liang, J. (Guangzhou Marine Geological Survey (Guangzhou, Xina)) ; Wu, N. (Ministry of Land and Resources (Qindao Shandong, Xina). Key Laboratory of Gas Hydrate,) ; Qiao, S. (Chinese Academy of Sciences. Guangzhou Key Laboratory of New and Renewable Energy Research and Development) ; Cong, X. (Chinese Academy of Sciences. Guangzhou Key Laboratory of New and Renewable Energy Research and Development) ; Yang, R. (Chinese Academy of Sciences. Guangzhou Key Laboratory of New and Renewable Energy Research and Development)
The results of the first marine gas hydrate drilling expedition of Guangzhou Marine Geological Survey (GMGS-1) in northern continental slope of the South China Sea revealed a variable distribution of gas hydrates in the Shenhu area. [...]
2016 - 10.1344/GeologicaActa2016.14.2.1
Geologica acta, Vol. 14 Núm. 2 (June 2016) , p. 79-100 (Articles)  
2016-03-29
08:05

8 p, 783.9 KB
Self-regulation of trilobite diversity in Murero (middle Cambrian, Spain) due to compensatory extinction / López-Villalta, J. S. (IES Pedro Simón Abril (Alcaraz, Castella-La Manxa). Departamento de Biología y Geología)
As species accumulate in a community, competition for available ecospace is expected to prevent the addition of new species and to facilitate species extinction, thus producing a dynamic equilibrium of diversity. [...]
2016 - 10.1344/GeologicaActa2016.14.1.6
Geologica acta, Vol. 14 Núm. 1 (March 2016) , p. 71-78 (Articles)  
2016-03-29
08:05

17 p, 4.6 MB
Palaeontology of the upper Turonian paralic deposits of the Sainte-Mondane Formation, Aquitaine Basin, France / Néraudeau, D. (Université Rennes 1) ; Saint Martin, S. (Université Rennes 1) ; Batten, D. J. (University of Manchester. School of Earth, Atmospheric and Environmental Sciences) ; Colin, Jean-Paul ; Daviero-Gomez, V. (Université Lyon 1) ; Girard, V. (Université Montpellier 2) ; Gómez, B. (Université Lyon 1) ; Nohra, Y. A. (Université Rennes 1) ; Polette, F (Université Rennes 1) ; Platel, J. P. ; Saint Martin, J.P. (Sorbonne Universités) ; Vullo, R. (Université Rennes 1)
The upper Turonian lignite deposits of Sainte-Mondane, Dordogne (Aquitaine Basin, SW France), consist of clays bearing translucent, orange to red, amber micrograins. The amber exhibits different types of microbial inclusions. [...]
2016 - 10.1344/GeologicaActa2016.14.1.5
Geologica acta, Vol. 14 Núm. 1 (March 2016) , p. 53-69 (Articles)  
2016-03-29
08:05

17 p, 3.6 MB
The Chicxulub impact is synchronous with the planktonic foraminifera mass extinction at the Cretaceous/Paleogene boundary : new evidence from the Moncada section, Cuba. / Arenillas, I. (Universidad de Zazagoza. Departamento de Ciencias de la Tierra e Instituto de Investigación en Ciencias Ambientales) ; Arz, J.A. (Universidad de Zazagoza. Departamento de Ciencias de la Tierra e Instituto de Investigación en Ciencias Ambientales) ; Grajales-Nishimura, J.M. (Universidad Nacional Autónoma de México. Instituto de Geología) ; Meléndez, A. (Universidad de Zazagoza. Departamento de Ciencias de la Tierra e Instituto de Investigación en Ciencias Ambientales) ; Rojas-Consuegras, R. (Museo Nacional de Historia (La Habana, Cuba))
The Moncada section, western Cuba, is one of the few sections across the Cretaceous/Paleogene (K/Pg) boundary in the Gulf of Mexico and Caribbean where an Ir anomaly has been identified toward and above the top of a clastic unit, locally called the Moncada Formation (Fm. [...]
2016 - 10.1344/GeologicaActa2016.14.1.4
Geologica acta, Vol. 14 Núm. 1 (March 2016) , p. 35-51 (Articles)  
2016-03-29
08:05

10 p, 806.1 KB
Exceptional preservation of Miocene pollen : plasmolysis captured in salt? / Durska, E. (University of Warsaw. Faculty of Geology)
Exceptionally well-preserved Miocene pollen from the Bochnia salt mine of southern Poland is reported herein. The halite deposits within the salt mine belonging to Late Badenian (Miocene) marine evaporites originated in the Paratethys. [...]
2016 - 10.1344/GeologicaActa2016.14.1.3
Geologica acta, Vol. 14 Núm. 1 (March 2016) , p. 25-34 (Articles)