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Title

Seismic Study of the Iberian Crust, ESCI-North survey

AuthorsPérez-Estaún, Andrés CSIC; Gallart Muset, Josep CSIC ORCID; Pulgar, J. A.; Alvarez-Marrón, Joaquina CSIC ORCID
KeywordsField
Seismic:Active:MCS
DigitalSeg
SEGY
Seismic:Reflection
Seismometer_SingleFrequency
Hydrophone_Streamer
SeismicSource_Explosive
SeismicSource_Gun_Air
Issue Date13-Nov-2019
PublisherDIGITAL.CSIC
CitationPérez-Estaún, A., Gallart, J., Pulgar, J. A., Álvarez-Marrón, J.; [2019]; "Seismic Study of the Iberian Crust, ESCI-North survey. [Dataset]"; DIGITAL.CSIC; http://dx.doi.org/10.20350/digitalCSIC/9894
AbstractThe ESCI-N project in Northwestern Spain was a subprogram of the ESCI Program (Estudios Sísmicos de la Corteza Ibérica). It is formed by four seismic experiments both on and offshore. This project aimed to image the Cantabrian Zone, West Asturian-Leonese Zone and the northern Iberian margin, thus characterizing the crustal structure resulted from the Variscan and Alpine orogenies and the Mesozoic extension related to the opening of the Bay of Biscay.
DescriptionTwo onshore profiles were acquired in E-W and N-S directions through the Variscan and Alpine domains of 140 and 65 km length, ESCI-N1 and ESCI-N2 respectively. Also two offshore profiles ESCI-N3 and ESCI-N4 were obtained with a streamer of 4500 m having 360 channels with a 12.5 m gap between them and a 40 l airgun capacity. ESCI-N3 follows a swerved line in a mainly E-W direction crossing the Variscan structures. ESCI-N4 is a N-S direction profile that crosses both the Cantabrian margin and Le Danois bank Alpine structures. Techincal specifications of offshore profiles: streamer length 4,500 m, 360 channels, group interval 12,5 m and sample rate 4 ms.
URIhttp://hdl.handle.net/10261/194540
DOI10.20350/digitalCSIC/9894
ReferencesTeixell, A., Labaume, P., Ayarza, P., Espurt, N., de Saint Blanquat, M., and Lagabrielle, Y. (2018). Crustal structure and evolution of the Pyrenean-Cantabrian belt: A review and new interpretations from recent concepts and data. Tectonophysics 724-725, 146-170. https://doi.org/10.1016/j.tecto.2018.01.009
Gallastegui, J., Pulgar, J.A., and Gallart, J. (2016). Alpine tectonic wedging and crustal delamination in the Cantabrian Mountains (NW Spain). Solid Earth, 7, 1043–1057. http://dx.doi.org/10.5194/se-7-1043-2016
Díaz, J., Gallart, J., Pulgar, J.A., Ruiz, M., and Pedreira, P. (2009). Crustal structure beneath North-West Iberia imaged using receiver functions. Tectonophysics 478, 175-183. https://doi.org/10.1016/j.tecto.2009.08.003
Martínez Catalán, J.R., Ayarza, P., and Pulgar, J,.A. (2004). La estructura profunda de la zona asturoccidental-leonesa deducida del perfil sísmico ESCI-N3.3. Geología de España, 60-63
Fernández-Viejo, G., Gallart, J., Pulgar, J.A., Gallastegui, J., Dañobeitia, J.J., and Córdoba, D. (1998). Crustal transition between continental and oceanic domains along the North Iberian margin from wide angle seismic and gravity data. Geophysical Research Letters, vol. 25, no. 23, 4249-4252 p. http://dx.doi.org/10.1029/1998GL900149
Pérez-Estaún, A., Pulgar, J.A., Alvarez-Marron, J., and ESCI-N Research Group (1997). Crustal structure of the Cantabrian Zone: seismic image of a Variscan foreland thrust and fold belt (NW Spain). Revista de la Sociedad Geológica de España 8 (4), 1995: 307-319. http://www.sociedadgeologica.es/archivos/REV/8(4)/Art01.pdf
Martínez Catalán, J.R., Ayarza Arribas, P., Pulgar, J.A., Pérez-Estaún, A., Gallart, J., Marcos, A., Bastida, F., Álvarez-Marrón, J., González-Lodeiro, F., Aller, J., Dañobeitia, J.J., Banda, E., Córdoba, D., and Comas, M.C. (1997). Results from the ESCI-N3.3 marine deep seismic profile along the Cantabrian continental margin. Revista de la Sociedad Geológica de España 8 (4), 1995: 341-354. http://hdl.handle.net/10261/171610
Gallart, J., Fernández- Viejo, G., Díaz, J., Vidal, N. and Pulgar, J.A. (1997). Deep structure of the transition between the Cantabrian Mountains and the North Iberian Margin from wide-angle ESCI-N data. Revista de la Sociedad Geológica de España 8 (4), 1995: 365- 382. http://www.sociedadgeologica.es/archivos/REV/8(4)/Art06.pdf
Pulgar, J.A., Pérez-Estaún, A., Gallart, J., Álvarez-Marrón, J., Gallastegui, J., Alonso, J.L., and ESCIN Group (1997). The ESCI-N2 deep seismic reflection profile: a traverse across the Cantabrian Mountains and adjacent Duero basin. Revista de la Sociedad Geológica de España 8 (4), 1995: 383-394. http://hdl.handle.net/10261/172054
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Files in This Item:
File Description SizeFormat
Descripcion_ficheros_ESCI-N.xlsxList of the files included in this dataset9,54 kBMicrosoft Excel XMLView/Open
Readme_ESCI-N.txtDataset general information2,51 kBTextView/Open
Index card_ESCI-N.pdfIndex card summarizing the main characteristics of the dataset2,22 MBAdobe PDFThumbnail
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ESCI-ZonesGeol.pdfMap with location of the ESCI Valencia Trough, ESCI-North and ESCI Betics profiles67,66 kBAdobe PDFThumbnail
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ESCI-N1.zipRaw SEGY files of the ESCI-N1 profile1,43 GBSEGYView/Open
ESCI-N2.zipRaw SEGY files of the ESCI-N2 profile647,44 MBSEGYView/Open
ESCI-N3.1.zipRaw SEGY files of the ESCI-N3.1 profile9,96 GBSEGYView/Open
ESCI-N3.2.zipRaw SEGY files of the ESCI-N3.2 profile6,67 GBSEGYView/Open
ESCI-N3.3.zipRaw SEGY files of the ESCI-N3.3 profile9,54 GBSEGYView/Open
ESCI-N4.zipRaw SEGY files of the ESCI-N4 profile9,63 GBSEGYView/Open
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