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Preliminary geologic, geomorphologic and geophysical studies for the paleoseismological analysis of the Amer fault (NE Spain)

  • J. Fleta (a1), P. Santanach (a2), X. Goula (a1), P. Martínez (a1), B. Grellet (a3) and E. Masana (a2)...

Abstract

The Amer fault is a 30 km long normal fault, which generated the damaging earthquakes of March and May 1427. Triangular facets, wine glass drainage basins, alluvial fans and scarps along the Amer fault mountain front provide evidence of its recent activity. Topographic profiling, electrical logging, tomographic and high-resolution seismic profiling along the northern segment of the Amer fault showed the following: i) no evidence of surface deformation in recent deposits; ii) fault scarps produced by the Amer fault located only on old alluvial fans, probably Pleistocene in age, and iii) Amer fault related deformation reaching upper Quaternary levels, but not the uppermost horizons. The high sedimentation rate (nearly one order of magnitude greater than the fault slip rate) due to the filling of the lake, which resulted from the damming of the Fluvià river by the Bosc de Tosca lava flow (17,000 yr BP), can account for the absence of surface deformation on Holocene sediments.

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References

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Barnolas, A., Saula, E., Mató, E., Muñoz, J.A. and Escuer, J., 1994. Mapa Geológico de España E 1:50.000 294 Manlleu. 51 pp., ITGE.
Briais, A., Armijo, R., Winter, T., Tapponnier, P. & Herbecq, A., 1990. Morphological evidence for Quaternary normal faulting and seismic hazard in the Eastern Pyrenees. Annales Tectonicae, Vol. IV (1): 1942.
Cros, J., 1986. El Quaternari de la Vail d’en Bas (província de Girona). Tesis de Llicenciatura, Universitat Autònoma de Barcelona, 62 pp.
Estruch, I., 1999. Estudi de les anomalies topogràfiques en relació a l’activitat tectònica recent a la falla d’Amer-Brugent (Vall d’en Bas). Institut Cartográfic de Catalunya, Informes del Servei Geològic de Catalunya, GS123–99, 132p., 5 anexes.
FAUST, 2001. FAUST [on line]: http://faust.ingv.it, 20.04.2001.
Fayas, J.A., & Doménech, J., 1974. Morfología volcánica de Olot y su interés hidrológico. Agua, 85: 2031.
Ferrer, P., Masana, E. & Santanach, P., 1999a. Expresión geomor-fológica de la actividad reciente de la falla de Amer (NE de la Península Ibérica). Acta Geol. Hispánica, 31 (1996), 4: 1724 (Pub. 1999).
Ferrer, P., Masana, E. & Santanach, P., 1999b. Analysis of relevant geologic and géomorphologic data for paleoseismologic trenching across the Brugent fault. Paleosis, Internal report, Institut Cartogràfic de Catalunya, 25 pp.
Fleta, J., & Goula, X., 1998. Paleosis Region IV: Eastern Pyrenees. Internet, http://www.astro.oma.be/PALEOSIS/epyr/index4.htm.
Fleta, J., Goula, X., Grellet, B., Estruch, I., Palomera, R., Martínez, P., Teixidó, T., Masana, E., Ferrer, P. & Santanach, P., 1999. Technical report on the activity for the period March 1998-February 1999. Investigations in the Eastern Pyrenees. Institut Cartogràfic de Catalunya. Paleosis-project (ENV4-CT97–0578) March 1999 report, partner 6, GC.DPT.ICC, 4072.
Giménez, J., Suriñach, E., Goula, X. and Fleta, J., 1996. Recent vertical movements from precise levelling data in the Northeast of Spain. Tectonophysics, Vol. 263 (14): 149162.
Goula, X., Talaya, J., Tèrmens, A., Colomina, L., Fleta, J., Grellet, B. and Granier, Th., 1996. Avaluadó de la potencialitat sísmica del Pirineu Oriental: Primers résultats de les campanyes GPS PotSis’92 i PotSis’94. Terra, 28: 4148.
Goula, X., Olivera, C., Fleta, J., Grellet, B., Lindo, R., Rivera, L.A.; Cisternas, A. & Carbon, D., 1999. Present and recent stress regime in the eastern part of the Pyrenees. Tectonophysics, 308 (4): 487502.
Gourgot, S. & Molas, L., 1999. Paleosis GPR survey. Sector of Olot – Spain. Report 99.201 vl.l. Institut Cartogràfic de Catalunya. 41 pp.
Guérin, G., Benhamou, G. & Mallarach, J.M. 1986. Un exemple de fusió parcial en medi continental. El vulcanisme quaternari de Catalunya. Vitrina, 1: 2026.
Guardia, M.P., 1960. Contribution à l’étude des volcans de la province de Gerone et du paléomagnetisme de leurs coulées. Thèse, Université de Paris, 56 pp.
ICC, 1999a. Mapa de sismicitat de Catalunya 1977–1997 Escala 1:400 000. Institut Cartogràfic de Catalunya.
ICC, 1999b. Base de dades altimètrica de Catalunya BD-MET15. Computer file. Institut Cartogràfic de Catalunya.
ICC, 1999c. Prospecció geofísica a la Vall d’en Bas. La Garrotxa. Institut Cartográfic de Catalunya, Informes del Servei Geològic de Catalunya, GA-157/99, 32 pp., 5 annexes.
Lewis, C.J., Vergés, J. & Marzo, M., 2000. High mountains in a zone of extended crust: Insights into the Neogene-Quaternary topographic development of northeastern Iberia. Tectonics, 19 (1): 86102.
Mallarach, J.M., Pérez, P., & Roure, J.M., 1986. Aportacions al coneixement del clima i la vegetació durant el Quaternari recent en el NE de la península Ibèrica. Vitrina, 1: 4954.
Martínez, P., Teixidó, T., Fleta, J., Goula, X. & Renardy, F., 2000. Geophysical prospection at the Amer-Brugent fault system (Girona, Spain). Procs. II Asamblea Hispanoportuguesa de Geodesia y Geofísica, S03-13, 135136.
Olivera, C., Redondo, E., Riera, A., Lambert, J. & Roca, A., 1999. Problems in assessing focal parameters to earthquake sequences from historical investigation:The 1427 earthquakes in Catalonia. Procs. IX Asamblea Española de Geodesia y Geofísica, SIM2-07, 8 pp.
PALEOSIS, 1999. PALEOSIS [on line] : http://www.astro.oma.be/PALEOSIS/, 4.05.1999.
Saula, E., Picart, J., Mató, E., Llenas, M., Losantos, M., Beràstegui, X. & Agustí, J., 1996. Evolución geodinámica de la fosa del Empordà y las Sierras Transversales. Acta Geol. Hispánica, 29 (1994): 5575.
SGC, 1998. Inventari de pous de Catalunya. Servei Geològic de Catalunya, Computer file.
SYSIGSA, 1999. Projecte Paleosis, Restitució fotogramètrica i malla tridimensional del terreny de 10m. Zones: Sant Privat i Joanetes. Computer file. Institut Cartogràfic de Catalunya.
Talaya, J., Feigl, K., Térmens, A. & Colomina, I., 1999. Practical lessons from analysis of a GPS network designed to detect movements of 1 mm/year in the Eastern Pyrenees. Phys. Chem. Earth (A), Vol. 24 (4): 355359.
Wallace, R.E., 1978. Geometry and rates of change of fault generated range fronts, North-Central Nevada. Jour. Res. U.S. Geol. Surv., 6(5): 637649.
Wells, D.L. & Coppersmith, K.J., 1994. New empirical relationships among magnitude, rupture, length, rupture wide, rupture area and surface displacement. Bull. Seismological Soc. Am., 84 (4): 9741002.

Keywords

Preliminary geologic, geomorphologic and geophysical studies for the paleoseismological analysis of the Amer fault (NE Spain)

  • J. Fleta (a1), P. Santanach (a2), X. Goula (a1), P. Martínez (a1), B. Grellet (a3) and E. Masana (a2)...

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