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Wide-angle deep seismic reflection profile (ALCUDIA Wide-Angle Transect)

AuthorsPérez-Estaún, Andrés ; Ayarza, P.; Martínez Poyatos, D.; Simancas, José Fernando; Azor, Antonio ; Carbonell, Ramón
Issue Date5-Nov-2019
CitationPérez-Estaún, A., Ayarza, P., Martínez Poyatos, D., Simancas, J. F., Azor, A., and Carbonell, R.; 2012; "Wide-angle deep seismic reflection profile (ALCUDIA Wide-Angle Transect) [Dataset]"; DIGITAL.CSIC; http://dx.doi.org/10.20350/digitalCSIC/9061
AbstractThe high-resolution, wide-angle seismic reflection experiment, ALCUDIA-WA, was acquired in 2012 across central Iberia, aiming to constrain the lithospheric structure and resolve the physical properties of the crust and upper mantle. The seismic transect, ca. 310 km long, crossed the Central Iberian Zone from its suture with the Ossa Morena Zone to the southern limit of the Central System mountain range.
DescriptionThe acquisition design included three lines of receivers, having a total length of ca. 350 km. The main line, ALCUDIA-WA, is ca. 310 km long strikes NE-SW to NNE-SSW, it is approximately perpendicular to the structural grain. A 40 km long line of receivers that trends NNW-SSE was deployed perpendicular to the Central System (CS) mountain range. Over 900 TEXANS (single component, digital recording seismic station) from the IRIS-PASSCAL Instrument Pool were deployed from the northern boundary of the Ossa-Morena Zone to the alpine thrust representing the southern boundary of the CS. The entire ALCUDIA-WA survey had a nominal shot and receiver spacing of 70 km and 400m, respectively. Five explosive sources, each one consisting in 1 TM of explosive, were placed in ~55m deep single boreholes, providing a signal rich in high frequencies resulting in shot records characterized by high signal-to-noise ratio. For this reason, these data can be qualified as a high-resolution wide-angle data set.
ReferencesEhsan, S. A.,Carbonell, R., Ayarza, P., Martí, D., Martínez Poyatos, D., Simancas, J. F., Azor, A., Ayala, C., Torné, M., and Pérez-Estaún, A. (2015). Lithospheric velocity model across the Southern Central Iberian Zone (Variscan Iberian Massif): The ALCUDIA wide-angle seismic reflection transect. Tectonics, 34, 535–554. http://dx.doi.org/10.1002/2014TC003661
Ayarza, P., Carbonell, R., Palomeras, I., Ehsan, S. A., Afonso, J. C., and Diaz, J. (2015). Mapping the Hales discontinuity in southwestern Spain. International Union of Geodesy and Geophysics. http://hdl.handle.net/10261/148566
Ehsan, S. A.,Carbonell, R., Cembrowski, M., Martí, D., Gil, A., Marzan, I., Ayarza, P., Martínez Poyatos, D., Simancas, J. F., and Azor, A. (2014). Lithospheric Structure Along the Wide-Angle Seismic Reflection Transect of the Central Iberian Massif. Geophysical Research Abstracts, vol. 16, EGU2014-2915.
Carbonell, R., Ehsan, S. A., Ayarza, P., Martínez Poyatos, D., Simancas, J. F., Azor, A., and Pérez-Estaún, A. (2014). From the Surface Topography to the Upper Mantle Beneath Central-Iberian-Zone. the Alcudia Seismic Experiments. American Geophysical Union, Fall Meeting. abstract id. T23B-4672
Carbonell, R., Ehsan, S., Ayarza, P., Martí, D., Martínez Poyatos, D., Schimmel, M., Ruiz, M., Palomeras, I., Simancas, J. F., Azor, A., Jabaloy, A., González Cuadra, P., Tejero, R., Martín Parra, L.M., Matas, J., Gil, A., Simancas, F., and Azor, A. (2012). New Wide-Angle Seismic Reflection Data Across the Central Iberia Peninsula: The ALCUDIA-WA transect. American Geophysical Union, Fall Meeting 2012, abstract id. T23F-2739.
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Descripcion_ficheros_ALCUDIA WA.xlsxList of the files included in this dataset9,43 kBMicrosoft Excel XMLView/Open
Readme_ALCUDIA WA.txtDataset general information1,7 kBTextView/Open
Index card_ALCUDIA WA.pdfIndex card summarizing the main characteristics of the dataset2,93 MBAdobe PDFThumbnail
ALCUDIA-WA.sgyRaw seismic data346,12 MBSEGYView/Open
ALCUDIA-geo-rec-src-00.ascGeometry of acquisition35 kBTextView/Open
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