Método para hallar la anelasticidad en zonas con poco recubrimiento sismográfico. Aplicación a la zona del Atlántico norte que comprende la Cordillera de Knipovitch
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Abstract
Synthetic seismograms are used to investigate the nature of anelastic attenuation in the northern part of the Atlantic Ocean. The results obtained seem to indicate that the region situated between Spitsbergen and the station KTG in Greenland presents similar shear-velocity and anelastic attenuation models to those corresponding to a region > 23 m.y. of the Atlantip ocean. Assuming that the attenuation under the Knipovitch ridge is the same than that under most of the Mid-Atlantic ridge, it is found that a narrow zone of low-Q's can be no wider than 174 ±37 km.
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References
CANAS, J. A. y B. J. MITCHELL, 1978. Lateral variation of surface wave anelastic attenuation across the Pacific. Bull. Seism. Soc. Am., 68, 1637-1650.
CANAS, J. A., B. J. MITCHELL y A. M. CORREIG, 1980. Q-1ß models for the East Pacific Rise and the Nazca plate, Mechanisms of Plate Tectonics and Continental Drift, pp. 123-133, Eds. P. A. Davies, and S. K. Runcorn, Academic Press, London.
CANAS, J. A. y B. J. MITCHELL, 1981. Rayleigh wave attenuation and its variation across the Atlantic ocean, Geophys. J. R. Soc., 67, 159-176. DOI: https://doi.org/10.1111/j.1365-246X.1981.tb02739.x
CARA, M., 1981. Differential attenuation coefficients for Rayleigh waves: A new constrain on Q - models. (Preprint). DOI: https://doi.org/10.1029/GD004p0023
HERRMANN, R. B., 1974. Surface wave generation by Central United States earthquakes. Ph.D. Dissertation, Saint Louis University.
HUSEBYE, E. S., H. GJOYSTDAL, H. BUNGUM y O. ELDHOLM, 1975. The seismicity of the Norwegian and Greenland seas and adjacent continental shelf areas, Tectonophysics, 26, 55-70. DOI: https://doi.org/10.1016/0040-1951(75)90113-4
LEVSHIN, A. L. y Z. A. YANSON, 1971. Surface waves in vertically and radially inhomogeneous media, Algorithms for the Interpretation of Seismic Data (Vol. 5 of the series Computational Seismology, V. I. Keilis-Borok, Editor), Nanka Press, Moscow 147-177. (English translation by R. B. Herrmann, St. Louis University).
MITCHELL, B. J., N. K. YACOUB y A. M. CORREIG, 1977. A summary of seismic surface wave attenuation and its regional variation across continents and oceans, J. G. Peacock, ed., The Earth's crust, Geophys. Mon. 20, 405-425. DOI: https://doi.org/10.1029/GM020p0405
MITCHELL, B. J., J. E. ZOLLWEG, J. E. KOHSMANN, C. C. CHENG y E. J. HANG, 1978. Intraplate earthquakes in the Svalbard archipielago, J. Geophys. Res., 84, 5620-5626. DOI: https://doi.org/10.1029/JB084iB10p05620
MITCHELL, B. J. y W. W. CHAN, 1978. Characteristics of earthquakes in the Heerland seismic zone of Eastern Spitsbergen, Polarforschung, 48, 31-40.
SAITO, M. y H. TAKEUCHI, 1966. Surface waves across the Pacific, Bull. Seism. Soc. Am., 56, 1067-1091. DOI: https://doi.org/10.1785/BSSA0560051067