Geologica acta

Geologica acta Encontrados 9 registros  La búsqueda tardó 0.01 segundos. 
1.
3 p, 361.9 KB Foreword / Salas, Ramon (Universitat de Barcelona. Departament de Geoquímica, Petrologia i Prospecció Geològica) ; Travé i Herrero, Anna (Universitat de Barcelona. Departament de Geoquímica, Petrologia i Prospecció Geològica)
2004 - 10.1344/105.000001417
Geologica acta, Vol. 2, Núm. 4 (2004) , p. 253-255  
2.
13 p, 1.6 MB Diagenesis and Geochemistry of Upper Muschelkalk (Triassic) Buildups and Associated Facies in Catalonia (NE Spain): a paper dedicated to Francesc Calvet / Tucker, M. (University of Durham. Department of Earth Sciences) ; Marshall, J. (University of Liverpool. Department of Earth Sciences)
Carbonate buildups are well developed in the Triassic Upper Muschelkalk of eastern Spain in the La Riba Unit, but they are completely dolomitised. These mud-mounds with reefal caps have well-developed fibrous and botryoidal marine cements which were probably high-Mg calcite and aragonite originally. [...]
2004 - 10.1344/105.000001418
Geologica acta, Vol. 2, Núm. 4 (2004) , p. 257-269  
3.
14 p, 1.9 MB Oriented calcite concretions in Upper Miocene carbonate rocks of Menorca, Spain : evidence for fluid flow through a heterogeneous porous system / Pomar, Luis (Universitat de les Illes Balears. Departament de Ciències de la Terra) ; Westphal, H. (Universität Erlangen. Institut für Paläontologie) ; Obrador i Tudurí, Antoni (Universitat Autònoma de Barcelona. Departament de Geologia)
Elongate calcite concretions in Upper Miocene dolomitic, shallow-marine grainstones and packstones of Menorca document fluid flow through heterogeneous systems. These post-dolomitization concretions are thought to have grown with elongation axes parallel to groundwater flow direction, and to reflect the hydraulic gradient and the anisotropy of the hydraulic conductivity. [...]
2004 - 10.1344/105.000001419
Geologica acta, Vol. 2, Núm. 4 (2004) , p. 271-284  
4.
6 p, 276.9 KB Are there "black holes" in carbonate deposystems? / Wright, V.P. (Cardiff University. School of Earth, Ocean and Planetary Sciences) ; Cherns, L. (BG Group)
The likelihood that extensive dissolution of aragonite (and high magnesian calcite) takes place during very early burial, even in relatively shallow tropical settings, has wide implications for interpreting and modelling ancient limestones. [...]
2004 - 10.1344/105.000001420
Geologica acta, Vol. 2, Núm. 4 (2004) , p. 285-290  
5.
14 p, 1.2 MB Coastal salina evaporites of the Triassic-Liassic boundary in the Iberian Peninsula : the Alacón borehole / Ortí Cabo, Federico (Universitat de Barcelona. Departament de Mineralogia, Petrologia i Geologia Aplicada) ; Salvany i Duran, Josep Maria (Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental)
The evaporite unit (the Lécera Formation), which was formed at the Triassic-Liassic boundary in the Aragonian Branch of the Iberian Chain, was studied at the 01 Alacón borehole (Alacón village, Teruel province), where it is mainly constituted by a thick (>300 m) succession of predominant sulphates (anhydrite, secondary gypsum and carbonate) overlain by brecciated carbonates. [...]
2004 - 10.1344/105.000001421
Geologica acta, Vol. 2, Núm. 4 (2004) , p. 291-304  
6.
16 p, 1.2 MB The siliciclastic Permian-Triassic deposits in Central and Northeastern Iberian Peninsula (Iberian, Ebro and Catalan Basins): a proposal for correlation / Arche, A. (Universidad Complutense de Madrid. Facultad de Geología) ; López-Gómez, J. (Universidad Complutense de Madrid. Facultad de Geología) ; Marzo, M. (Universitat de Barcelona. Departament d'Estratigrafia, Paleontologia i Geociències Marines) ; Vargas, H. (Universidad Complutense de Madrid. Facultad de Geología) ; Consejo Superior de Investigaciones Científicas (Espanya). Instituto de Geología Económica
The siliciclastic deposits of the Iberian, Ebro and Catalan Basins have been described for more than a century, but facies similarities and a lack of biostratigaphic data have difficulted the correlation of the local stratigraphic units in a general framework up to now. [...]
2004 - 10.1344/105.000001422
Geologica acta, Vol. 2, Núm. 4 (2004) , p. 305-320  
7.
11 p, 748.9 KB Estimating paleogeographic, hydrological and climatic conditions in the upper Burdigalian Vallès-Penedès basin (Catalunya, Spain) / Bitzer, K. (Universität Bayreuth. Abteilung Geologie)
During the evolution of the Vallès-Penedès basin, several transgressive pulses in the upper Burdigalian led to a partial flooding of the western part of the basin, leaving locally sabkha-salina evaporite sediments in the area of the village of Vilobí. [...]
2004 - 10.1344/105.000001423
Geologica acta, Vol. 2, Núm. 4 (2004) , p. 321-331  
8.
2 p, 69.0 KB Author Index volume 2(2004)
2004 - 10.1344/105.000001424
Geologica acta, Vol. 2, Núm. 4 (2004) , p. 333-333  
9.
2 p, 81.0 KB Reviewers Volume 2(2004)
2004 - 10.1344/105.000001425
Geologica acta, Vol. 2, Núm. 4 (2004) , p. 335-335  

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