Anomalous Crust of the Bolivian Altiplano, Central Andes: Constraints from Broadband Regional Seismic Waveforms

Geophysical Research Letters

Volumn 23, Issue 10, 1996, Pages 1159-1162

  Zandt, G ^a,b   Beck, S L ^b   Ruppert, S R ^a   Ammon, C J ^c   Rock, D ^a   Minaya, E ^d   Wallace, T C ^b   Silver, P G ^e  

^a LAWRENCE LIVERMORE NATIONAL LABORATORY   (United States)

^b University of Arizona   (United States)

^c Saint Louis University   (United States)

^d Observatorio San Calixto   (Bolivia)

^e GEOPHYSICAL LABORATORY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ACOUSTIC WAVE VELOCITY MEASUREMENT; EARTHQUAKES; GEOLOGIC MODELS; SEISMIC PROSPECTING; SEISMIC WAVES; SEISMOLOGY; GEOPHYSICS; POISSON RATIO; SEISMOGRAPHS; STRUCTURAL GEOLOGY;

ANOMALOUS CRUST; BROADBAND REGIONAL SEISMIC WAVEFORMS; LOW MEAN VELOCITY; POISSON RATIO;

SEISMOGRAPHS; EARTHQUAKES;

BOLIVIAN ALTIPLANO; BROADBAND SEISMOGRAPH; BROADBAND WAVEFORM; BULK COMPOSITIONS; CRUSTAL STRUCTURE; CRUSTAL THICKNESS; INTERMEDIATE-DEPTH EARTHQUAKES; SEISMIC WAVEFORMS;

BROADBAND DATA; CRUSTAL STRUCTURE; POISSON'S RATIO; SEISMIC VELOCITY; SEISMIC WAVEFORM;

BOLIVIA, ANDES, ALTIPLANO;

EID: 0029666521     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/96GL00967     Document Type: Article

References (12)

1. Beck, S. L., et al., Across the Andes and along the Altiplano: A passive seismic experiment, IRIS Newsletter, 13(3), 1-3, 1994.
2. Beck, S. L., G. Zandt, S. Myers, T. C. Wallace, P. Silver, and L. Drake, Crustal thickness variations in the Central Andes, Geology, in press, 1996.
3. Christensen, N. I., and W. D. Mooney, Seismic velocity structure and composition of the continental crust: A global view, J. Geophys. Res., 100, 9761-9788, 1995.
4. Clouser, R. H., and C. A. Langston, Upper mantle structure of southern Africa from Pnl waves, J. Geophys. Res., 97, 17,403-17,415, 1990.
5. Giese, P., Geothermal structure of the Central Andean crust - Implications for heat transport and rheology, in Tectonics of the Southern Central Andes, edited by K. J. Reutter et al., pp. 69-76, Springer-Verlag, New York, 1994.
6. Helmberger, D. V., and G. R. Engen, Modeling the long-period body waves from shallow earthquakes at regional ranges, Bull. Seismol. Soc. Am., 70, 1699-1714, 1980.
7. Henry, S. G., and H. N. Pollack, Terrestrial heat flow above the Andean subduction zone in Bolivia and Peru, J. Geophys. Res., 93, 15,153-15,162, 1988.
8. Holbrook, W. S., W. D. Mooney, and N. I. Christensen, The seismic velocity structure of the deep continental crust, in Continental Lower Crust, edited by D. M. Fountain, R. Arculus, and R. Kay, pp. 1-43, Elsevier, Amsterdam, 1992.
9. Isacks, B. L., Uplift of the central Andean plateau and bending of the Bolivian orocline, J. Geophys. Res., 93, 3211-3231, 1988.
10. James, D. E., Andean crustal and upper mantle structure, J. Geophys. Res., 76, 3246-3271, 1971.
11. Kern, H., Effect of high-low quartz transition on compressional and shear velocities in rocks under high pressure, Phys. Chem. Minerals, 4, 161-171, 1979.
12. Zandt, G., A. Velasco, and S. L. Beck, Composition and thickness of the southern Altiplano crust, Bolivia, Geology, 22, 1003-1006, 1994.