Electrical and thermal anomalies in the central andean subduction zone

Pure and Applied Geophysics

Volumn 149, Issue 2, 1997, Pages 391-404

  Favetto, Alicia ^a,b   Martinelli, Patricia ^a,b   Osella, Ana ^a,b  

^a UNIVERSIDAD DE BUENOS AIRES   (Argentina)

^b Facultad de Ciencias Naturales e Instituto M Lillo   (Argentina)

Author keywords

Central Andes; Electrical anomaly; Thermal anomaly

Indexed keywords

ELECTRICAL CONDUCTIVITY; HEAT FLOW; SUBDUCTION ZONE; THERMAL ANOMALY;

SOUTH AMERICA, ANDES;

EID: 0030744957     PISSN: 00334553     EISSN: None     Source Type: Journal    
DOI: 10.1007/s000240050032     Document Type: Article

References (24)

1. ALLMENDINGER, R., FIGUEROA, D., SNYDER, E., BEER, J., MPODOZIS, C., and ISACKS, B. L. (1990), Foreland Shortening and Crustal Balancing in the Andes at 30° Latitude, Tectonics 9, 789-809.
2. ASSUMPÇAO, M. (1992), The Regional Intraplate Stress Field in South America. J. Geophys. Res. 97, 11889-11903.
3. BARAZANGI, M., and ISACKS, B (1976), Spatial Distribution of Earthquakes and Subduction of the Nazca Plate beneath South America, Geology 4, 686-692.
4. CAHILL, T., and ISACKS, B. (1992), Seismicity and Shape of the Subducted Nazca Plate, J. Geophys. Res. 97, 17503-17529.
5. CAMPBELL, W., and SCHIFFMACHER, E. (1988), Upper Mantle Electrical Conductivity for Seven Subcontinental Regions of the Earth, J. Geomag. Geoelectr. 40, 1387-1406.
6. CHAPMAN, D. S., and POLLACK, H. N. (1977), Regional Geotherms and Lithospheric Thickness, Geology 5, 265-268.
7. DORBATH, C., GARNET, M., POUPINET, G., and MARTINEZ, C. (1993), A Teleseimic Study of the Altiplano and Eastern Cordillera in Northern Bolivia: New Constraints on a Lithopheric Model, J. Geophys. Res. 98, 9825-9844.
8. FUKAO, Y., YAMAMOTO, A., and KONO, M (1989), Gravity Anomaly across the Peruvian Andes, J. Geophys. Res. 94, 3867-3890.
9. GIESE, P., Geothermal structure of the Central Andean crust - Implications for heat transport and rheology. In Tectonics of the Southern Central Andes (eds. Reutter, K. J., Scheuber, E., and Wigger, P. J.) (Springer-Verlag, New York 1993) pp 69-76.
10. HENRY, S. G., and POLLACK, H N. (1988), Terrestrial Heat Flow above the Andean Subduction Zone in Bolivia and Peru, J. Geophys. Res. 93, 15153-15162.
11. JAMES, D. E. (1971), Andean Crustal and Upper Mantle Structure, J. Geophys. Res. 76, 3246-3271.
12. JAMES, D. E., and SNOKE, J. A. (1994), Structure and Tectonics in the Region of the Flat Subduction beneath Central Peru: Crust and Uppermost Mantle, J. Geophys. Res. 99, 6899-6912.
13. JORDAN, T. E., ISACKS, B. L., ALLMENDINGER, R. W., BREWER, J. A., RAMOS, V. A., and ANDO, C. L. (1983), Andean Tectonics Related to Geometry of Subducted Nazca Plate, Geol. Soc. Am. Bull. 94, 341-361.
14. NORABUENA., E. O., SNOKE, A., and JAMES. D. (1994), Structure of the Subducting Nazca Plate beneath Peru, J. Geophys Res 99, 9215-9226.
15. OSELLA, A M., FAVETTO, A., and MARTINELLI, P. (1993a), Lateral Heterogeneities in the Upper and Mid-mantle Conductivity in Argentina, Pure and Appl. Geophys. 141, 139-156.
16. OSELLA, A. M., FAVETTO, A., and MARTINELLI, P. (1993b), Sensitivity of the Geomagnetic Daily Variations to 2D Structures, Trends in Geophys. Res. 2, 141-155.
17. PEACOCK, S. M. (1987), Thermal Effect of Metamorphic Fluids in Subduction Zones, Geology 15, 1057-1060.
18. SCHMITZ, M. (1994), A Balanced Model of the Southern Central Andes, Tectonics 13 (2), 485-492.
19. SCHMUCKER, U , HARTMANN, O., GIESECKE, A. A , CASAVERDE, M., and FORBUSH, S. E. (1963), Electrical Conductivity in the Earth's Crust in Peru, Carnegie Institution of Washington Yearbook 63, 354-362.
20. SHEFFELS, B. (1990), Lower Bound on the Amount of Crustal Shortening in the Central Bolivian Andes, Geology 18, 812-815.
21. SMALLEY, R., PUJOL, J., REGNIER, M., CHIU, J. M., CHATELAIN, B. L., ARAUJO, M., and PUEBLA, N. (1993), Basement Seismicity beneath the Andean Precordillera Thin-skinned Thrust Belt and its Implications for Crustal and Lithosphere Behavior, Tectonics 12, 63-76.
22. TARITS, P., and MENVIELLE, M. (1986), The Andean Conductivity Anomaly Reexamined, Annales Geophysicae 4B, 63-70
23. WHITMAN, D. (1994), Moho Geometry beneath the Eastern Margin of the Andes, Northwest Argentina, and its Implications to the Effective Elastic Thickness of the Andean Foreland. J. Geophys. Res. 99, 15277-15289.
24. WIGGER, P., SCHMITZ, M., ARANEDA, M., ASCH, G., BALDZHUN, S., GIESE, P., HEINSOHN, W. D., MARTINEZ, E., RICARDI, E., ROWER, P., and VIRAMONTE, J., Variation of the crustal structure of the southern Central Andes deduced from seismic refraction investigations. In Tectonics of the Southern Central Andes (eds. Reutter, K. J., Scheuber, E., and Wigger, P. J.) (Springer-Verlag, New York 1993) pp. 23-48.