New evidences of synsedimentary folding of the Sant Miquel de Montclar conglomerates (Eocene, Ebro basin, NE Spain)
DOI:
https://doi.org/10.55407/geogaceta108687Keywords:
Ebro basin, alluvial fan, eocene, growth-strata, syntectonicAbstract
The alluvial conglomerates of the Sant Miquel Formation, deposited during the Priabonian (upper Eocene) in the SE margin of the Ebro basin, are a classic example of progressive unconformity or growth strata. Recent works have shown that the relationships and geometries formerly interpreted as associated to this kind of setting are related to other very different processes and elements. However, in areas close to Vallespinosa it has finally been possible to describe geometries attributable to a progressive unconformity and growth strata related to the folding of the NW margin of the Catalan Coastal Ranges and demonstrating the clear syntectonic character of the Sant Miquel conglomerates Fm.
References
Anadón, P. (1978): El Paleógeno inferior anterior a la transgresión «Biarritziense» (Eoceno medio) entre los ríos Gaià y Ripoll (Provincias de Tarragona y Barcelona). Tesis doct. Univ. De Barcelona, 267 p. Resumen publicado en Estudios Geológicos 34, 431-440.
Anadón, P., Cabrera, Ll., Guimerà, J. y Santanach, P. (1985). En: Strike-slip tectonics and sedimentation (Biddle, K.T., Christie-Blick, N., Eds.), Soc. Econ. Paleontol. Mineral., Spec. Publ., 37, 303- 318. https://doi.org/10.2110/pec.85.37.0303
Anadón, P., Cabrera, Ll., Colombo, F., Marzo, M. y Riba, O. (1986). En: P.A. Allen y P. Homewood (Eds.) Foreland Basins. IAS Special Publications. 8, 259-271. https://doi.org/10.1002/9781444303810.ch14
Beamud, E. Costa, E., Garcés, M., Marín, M., Cabrera, Ll., Roca, E. y Gómez-Paccard, M. (2012). Geotemas 13, 1116-1119.
Benzaquen, M., Nuñez, A., Martínez, W., (1973). Mapa Geológico de España 1:50.000, hoja nº 418 (Montblanc) y memoria. IGME, Madrid, 41 p.
Cabrera, Ll., Arbués, P., Cuevas, J.L., Garcés, M., López-Blanco, M., Marzo, M. y Valero, L. (2011). En: 7 Pre-Meeting Field Trips Guidebook, 28th IAS Meeting, Zaragoza (C. Arenas, L. Pomar y F. Colombo Eds.) SGE, Geo-Guías 7. 151-198.
Carrera, N., López-Blanco, M., Arbués, P., Beamud, E., Garcés, M., Marín, M. y Cabrera, Ll. (2020). Caracterització litostratigràfica i estructural i cartografia geològica del Paleogen dels fulls de Sarral (67-31) i Montblanc (67-32) del Mapa Geològic de Catalunya 1:25000. Institut Cartogràfic i Geològic de Catalunya, Informe técnico CG-0006/20 (inédito) 70 p.
Colldeforns, B., Anadón, P. y Cabrera, Ll. (1994). Geogaceta 16, 98-101.
Colombo, F. (1980). Estratigrafia y sedimentologia del Terciario inferior continental de los Catalanides. Tesis Doctoral, Univ. de Barcelona, 609 p.
Colombo, F. (1986). Cuadernos Geología Ibérica 10, 55-115.
Garcés, M., López-Blanco, M., Valero, L., Beamud, E., Muñoz, J.A., Oliva -Urcia, B., Vinyoles, A., Arbués, P., Cabello, P. y Cabrera, L. (2020n. Marine and Petroleum Geology 113, 104105. https://doi.org/10.1016/j.marpetgeo.2019.104105
Guimerà, J. (1988). Estudi estructural de l'enllaç˛ entre la Serralada Ibérica i la Serralada Costanera Catalana. Tesis Doctoral. Univ. de Barcelona , 600p.
López-Blanco, M. (2002). Sedimentary Geology 146, 133-154. https://doi.org/10.1016/S0037-0738(01)00170-1
López-Blanco, M., Carrera, N., Arbués, P., Beamud, E., Garcés, M., Marín, M.A., Cabrera, Ll., Roca, E, Ferrer, O. y Gratacos, O. (2024). En: XI Congreso Geológico de España. Comunicaciones 1, 67-70.
Marín, M., Roca, E., Marcuello, A., Cabrera, Ll. y Ferrer, O. (2021). Tectonophysics 814, 228970. https://doi.org/10.1016/j.tecto.2021.228970
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