08 Sep 2015
The installation campaign of 9 seismic stations around the KTB site to test anisotropy detection by the Receiver Function Technique
Institut für Meteorologie und Geophysik, Universität Wien, 1090 Wien, Austria
M. Anselmi
Sezione Sismologia e Tettonofisica, Istituto Nazionale di Geofisica e Vulcanologia, 00143 Roma, Italy
M. T. Apoloner
Institut für Meteorologie und Geophysik, Universität Wien, 1090 Wien, Austria
E. Qorbani
Institut für Meteorologie und Geophysik, Universität Wien, 1090 Wien, Austria
K. Gribovski
Institut für Meteorologie und Geophysik, Universität Wien, 1090 Wien, Austria
MTA CSFK Geodéziai és Geofizikai Intézet, 9400, Sopron, Csatkai E. u. 6–8, Hungary
G. Bokelmann
Institut für Meteorologie und Geophysik, Universität Wien, 1090 Wien, Austria
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M.-T. Apoloner and G. Bokelmann
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M.-T. Apoloner, G. Bokelmann, I. Bianchi, E. Brückl, H. Hausmann, S. Mertl, and R. Meurers
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Cited articles
Babuska V. and Plomerova J.: Boundaries of mantle-lithosphere domains in the Bohemian Massif as extinct exhumation channels for high-pressure rocks, Gondwana Res., 23, 973–987, https://doi.org/10.1016/j.gr.2012.07.005, 2013.
Dahlheim, H. A., Gebrande, H., Schmedes, E., and Soffel H.: Seismicity and stress field in the vicinity of the KTB location, J. Geophys. Res., 102, 493–506, 1997.
DEKORP Research Group: Near-vertical and wide-angle seismic surveys in the Black Forest, SW Germany, J. Geophys., 62, 1–30, 1987.
DEKORP Research Group: Results of the DEKORP 4/KTB Oberpfalz deep seismic reflection investigations, J. Geophys., 62, 69–101, 1988.
DEKORP and Orogenic processes Working Groups: Exhumation of subducted crust – the Saxonian granulites from reflection seismic experiment GRANU' 95. Tectonics, 18, 756–773, 1999.
Eisbacher, G.-H., Lüschen, E., and Wickert, F.: Crustal-scale thrusting and extension in the Hercynian Schwarzwald and Vosges, Central Europe, Tectonics, 8, 1–21, 1989.
Emmermann, R. and Lauterjung, J.: The German Continental Deep Drilling Program KTB: Overview and major results, J. Geophys. Res., 102, 179–201, 1997.
Emmermann, R. and Wohlenberg, J.: The German continental deep drilling program (KTB): Site-selection studies in the Oberpfalz and Schwarzwald, Springer, Berlin-Heidelberg, 553 pp., 1989.
Gebrande, H., Bopp, M., MeichelböCk, M., and Neurieder, P.: 3-D Wide-Angle Investigations in the Ktb Surroundings as Part of The "Integrated Seismics Oberpfalz 1989 (Iso89)", First Results, in: Continental Lithosphere: Deep Seismic Reflections, edited by: Meissner, R., Brown, L., Dürbaum, H.-J., Franke, W., Fuchs, K., and Seifert, F., American Geophysical Union, Washington, DC, https://doi.org/10.1029/GD022p0147, 1991.
Haak, V. and Jones, A. G.: Introduction to special section: the KTB deep drill hole, J. Geophys. Res., 102, 175–177, 1997.
Harjes, H. P., Bram, K., Dürbaum, H.-J., Gebrande, H., Hirschmann, G., Janik, M., Klöckner, M., Lüschen, E., Rabbel, W., Simon, M., Thomas, R., Tormann, J., and Wenzel, F.: Origin and nature of crustal reflections: Results from integrated seismic measurements at the KTB superdeep drilling site, J. Geophys. Res.-Sol. Ea., 102, 18267–18288, 1997.
Lüschen, E., Bram, K., Söllner, W., and Sobolev, S.: Nature of seismic reflections and velocities from VSP-experiments and borehole measurements at the KTB deep drilling site in southeast Germany, Tectonophysics, 264, 309–326, 1996.
Marzorati, S. and Bindi, D.: Ambient noise levels in north central Italy. Geochem. Geophys. Geosyst., 7, Q09010, https://doi.org/10.1029/2006GC001256, 2006.
Muller, J., Janik, M., and Harjes, H.-P.: The use of wave-field directivity for velocity estimation: Moving source profiling (MSP) experiments at KTB, Pure Appl. Geophys., 156, 303–318, 1999.
Nakamura, Y.: A method for dynamic characteristics estimation of subsurface using microtremor on the ground surface, QR Railway Tech. Res. Inst., 30, 1, 1989.
O'Brien, P. J., Duyster J., Grauert B., Schreyer W., Stoeckhert W., and Weber, K.: Crustal evolution of the KTB drill site: From oldest relics to the late Hercynian granites, J. Geophys. Res.-Sol. Ea., 102, 18203–18220, 1997.
Okaya, D., Rabbel W., Beilecke T., and Hasenclever, J.: P wave material anisotropy of a tectono-metamorphic terrane: An active source seismic experiment at the KTB super-deep drill hole, southeast Germany, Geophys. Res. Lett., 31, L24620, https://doi.org/10.1029/2004GL020855, 2004.
Peterson, J.: Observation and modeling of seismic background noise, U.S. Geol. Surv. Tech. Rept., 93–322, 1–95, 1993.
Plenefisch, T., Klinge, K., and Kind, R.: Upper mantle anisotropy at the transition zone of the Saxothuringicum and Moldanubicum in southeast Germany revealed by shear wave splitting. Geophys. J. Int., 144 309–319, 2001.
Plomerová, J., Achauer, U., Babuška, V., Vecsey, L., and BOHEMA working group: Upper mantle beneath the Eger Rift (Central Europe): Plume or asthenosphere upwelling?, Geophys. J. Int., 169, 675–682 https://doi.org/10.1111/j.1365-246X.2007.03361.x, 2007.
