2024-12-14
07:39 |
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15 p, 3.5 MB |
New spider crabs (Brachyura, Majoidea) from the early Eocene of Spain with a reassignment of the species "Periacanthus" tetracornis
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Ferratges, Fernando Ari (Instituto Geológico y Minero de España)
Spider crabs (superfamily Majoidea Samouelle, 1819) represent a highly diverse group within Eubrachyura de Saint Laurent, 1980. This study re-examines the species "Periacanthus" tetracornis Ferratges, Ortega Fernández, Moreno and Maza, 2014 (Roda Formation, lower Eocene of Spain) which was previously consider as a member of Epialtidae MacLeay, 1838 and it is included as a new genus of majoid crabs, Eoactinotocarcinu n. [...]
2024 -  10.1344/GeologicaActa2024.22.12
Geologica acta, Vol. 22 (2024) (Articles)
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2024-12-14
07:39 |
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23 p, 21.2 MB |
Controls on carbonate deposition and microbialite formation in distal alluvial systems (Campanian, Montalbán subbasin, NE Spain)
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Torromé Sanz, Diego (Universidad de Zaragoza) ;
Martín-Pérez, Andrea (Research Centre of the Slovenian Academy of Sciences and Arts) ;
Košir, Adrijan (Research Centre of the Slovenian Academy of Sciences and Arts) ;
Aurell, Marcos (Universidad de Zaragoza)
The middle-upper Campanian Allueva Formation is located in the continental Montalbán subbasin (NE Spain) at the onset of the Alpine compression. This formation consists of alluvial terrigenous sediments, but it is locally dominated by carbonates and microbialites, which are the main focus of this study. [...]
2024
Geologica acta, Vol. 22 (2024) (Carbonate successions from Iberia and the Caribbean - Homage to Ramon Salas)
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2024-11-24
00:02 |
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2024-11-24
00:02 |
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15 p, 6.9 MB |
Comprehensive seismic refraction analysis and 2-D geological modeling in Ini Local Government Area, Akwa Ibom State, Nigeria
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Aka, Mfoniso U. (Federal University of Technology (Nigèria)) ;
Agbasi, Okechukwu Ebuka (Heritage Polytechnic (Nigèria)) ;
Ibuot, Johnson C. (University of Nigeria)
Seismic refraction methods are vital in geophysical investigations to reveal subsurface geological structures. This study focuses on the Ini Local Government Area, Akwa Ibom State, Nigeria, analyzing geological features beneath the surface, with emphasis on seismic velocities and layer thicknesses. [...]
2024 - 10.1344/GeologicaActa2024.22.11
Geologica acta, Vol. 22 (2024) , p. 1-IV (Articles)
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2024-11-16
10:01 |
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2024-11-03
16:23 |
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2024-10-26
07:21 |
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35 p, 13.5 MB |
Decapod assemblages from the Aptian-Albian transition of the eastern Maestrat Basin (Iberian Chain)
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Ossó, Àlex (Ateneu de Natura-Tarragona (Tarragona, Catalunya)) ;
Charbonnier, Sylvain (Sorbonne Université(França)) ;
Hyžný, Matúš (Comenius University (Eslovàquia)) ;
Bakel, Barry Wilhelmus Martinus van (Utrecht University (Països Baixos)) ;
Devillez, Julien (Muséum national d'Histoire naturelle. Sorbonne Université (França)) ;
Bover-Arnal, Telm (Universitat de Barcelona) ;
Moreno Bedmar, Josep Anton (Universidad Nacional Autónoma de México)
Two decapod (Arthropoda: Malacostraca: Decapoda) assemblages from two newly discovered localities near Torreblanca (Castelló, Valencian Country, Spain), situated in the Orpesa Sub-basin of the Maestrat Basin, are described. [...]
2024 - 10.1344/GeologicaActa2024.22.7
Geologica acta, Vol. 22 (2024) (Carbonate successions from Iberia and the Caribbean - Homage to Ramon Salas)
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2024-10-06
17:15 |
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24 p, 4.1 MB |
Geometrical characterization of fracture systems using point clouds and SELF-Software : example of the Añisclo anticline carbonate platform, Central Pyrenees
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García-Sellés, David (Universitat de Barcelona) ;
Carola, Eloi (Universitat de Barcelona. Facultat de Ciències de la Terra) ;
Gratacós Torrà, Òscar (Universitat de Barcelona. Facultat de Ciències de la Terra) ;
Cabello, Patrícia (Universitat de Barcelona. Facultat de Ciències de la Terra) ;
Muñoz, Josep Anton (Universitat de Barcelona. Facultat de Ciències de la Terra) ;
Ferrer, Oriol (Universitat de Barcelona. Facultat de Ciències de la Terra)
Natural fracture systems contribute significantly to rock mass anisotropies. Characterizing these systems is essential for understanding processes of fluid flow, energy exploration and storage, slope stability or tectonic processes that can affect the permeability or compaction of the material, as well as reflect its temporal evolution. [...]
2024 - 10.1344/GeologicaActa2024.22.6
Geologica acta, Vol. 22 (2024) , p. 1-24 (Carbonate successions from the Iberian and Caribbean basins - Homage to Ramon)
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2024-09-21
11:50 |
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26 p, 6.0 MB |
Late Ediacaran carbonate production and REE+Y signatures tracing redox conditions in a Cadomian retroarc basin, Central Iberian Zone, Spain
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Álvaro, Jose Javier (Consejo Superior de Investigaciones Científicas. Instituto de Geociencias) ;
Lorenzo, Saturnino (Universidad de Castilla-La Mancha) ;
Martínez-Benítez, Blanca (Universidad Complutense de Madrid) ;
Pieren, Agustín P. (Universidad Complutense de Madrid)
The late Ediacaran carbonate production recorded in a Cadomian retroarc basin from the Iberian Peninsula provides an excellent opportunity to evaluate the tectonic and redox factors that controlled the infill of the foredeep troughs, located between uplifted orogenic wedges and exposed forebulge transects. [...]
2024 - 10.1344/GeologicaActa2024.22.5
Geologica acta, Vol. 22 (2024) , p. 1-IV (Articles)
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2024-07-06
10:16 |
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