Articles | Volume 12, issue 10
https://doi.org/10.5194/se-12-2303-2021
https://doi.org/10.5194/se-12-2303-2021
Research article
 | 
12 Oct 2021
Research article |  | 12 Oct 2021

Elastic anisotropies of deformed upper crustal rocks in the Alps

Ruth Keppler, Roman Vasin, Michael Stipp, Tomás Lokajícek, Matej Petruzálek, and Nikolaus Froitzheim

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Cited articles

Ábalos, B., Fountain, D. M., Gil Ibarguchi, J. I., and Puelles, P.: Eclogite as a seismic marker in subduction channels: Seismic velocities,anisotropy, and petrofabric of Cabo Ortegal eclogite tectonite (Spain), Geol. Soc. Am. Bull., 123, 439–456, 2011. 
Abrecht, J.: Geologic units of the Aar massif and their pre-Alpine rock associations: a critical review, Schweiz, Mineral. Petrogr. Mitt., 74, 5–27, 1994. 
Aleksandrov, K. S., Alchikov, U. V., Belikov, B. P., Zaslavski, B. I., and Krupny, A. I.: Elastic wave velocities in minerals at atmospheric pressure and increasing precision of elastic constants by means of EVM, Izvestija Academy of Science USSR, Geol. Ser., 10, 15–24, 1974. 
Aleksandrov, K. S. and Ryzhova, T. V.: The elastic properties of rock forming minerals, Izvestija Academy of Science USSR, Geophys. Ser., 12, 1799–1804, 1961. 
Almqvist, B. S. G., Hirt, A. M., Herwegh, M., Ebert, A., Walter, J. M., Leiss, B., and Burlini, L.: Seismic anisotropy in the Morcles nappe shear zone: Implications for seismic imaging of crustal scale shear zones, Tectonophysics, 603, 162–178, 2013. 
Short summary
Rocks in mountain belts have been deformed during continental collision causing a certain alignment of the minerals referred to as crystallographic preferred orientation (CPO). Minerals have anisotropic properties: the velocity of seismic waves travelling through them is direction dependent. This leads to anisotropy of the rocks. We measured the CPO of common rocks within the Alps. With this data and known anisotropic properties of the minerals we calculated the seismic anisotropy of the rocks.