Abstract
New first order gravity stations were established and measured in Chile, during 1989 and 1991 using as base stations those determined for the System Informative of Latin American Gravity in 1977 (SILAG), about a 50% of the total, since the rest of them is no longer operative. The configuration of the network was remarkably enhanced by the installation of additional stations. The adjustment carried out by means of two La Coste and Ramberg gravimeters allowed to obtain a standard deviation of 27 μgal for the adjusted gravity differences. Gravity changes of more than 30 μgals obtained in preliminary analyses are associated to structural changes and seismo-tectonic aspects.
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References
Araneda, M.; Avendaño, M.S. y Kausel, E. 1989. Determinación de parámetras del terremoto del 3 de Marzo de 1985 a partir de la distributión de deformaciones superficiales. 5° Jornadas Chilenas de Sismología e Ingeniería Antisísmica, Vol. 1, p. 303–310, Santiago.
Araneda, M. and Avendaño, M. 1991. Seguimiento de deformaciones corticales en zona afectada por sismo de Marzo 1985, Chile. 6° Congreso Geológico de Chile, p. 705–708.
Chen, Y.; Gu, H. y Lu, Z. 1979. Variations of gravity before and after the Haicheng earthquake, 1975 and the Tangshan earthquake, 1976. Phys. Earth Planet. Inter., Vol. 18. p. 330–338.
Hagiwara, Y. 1978. Recent non-tidal gravity changes during earthquake activities in Japan. Boll. Geofis. Teor. Appl., Vol. 20, p. 330–400.
Lambert, A. y Beaumont, C. 1977. Nano variations in gravity due to seasonal graundwater movements: implications for the gravitational detection of tectonic movements. J. Geophys. Res., Vol. 82, p. 297–306.
McGinnis L.; Carlsen, G. and Ervin, C. 1977a. Precision gravity leveling study in the Mississippi Embayment. Geol. Soc. Am. Abstr. Programs, Vol. 9, p. 629.
McGinnis, L.; Carlsen, G. and Ervin, C. 1977b. Seasonal and long-term changes in gravity field intensity in the Mississippi embayment. (Abstract), EOS Trans. AGU, Vol. 58, 431 p.
Minister, J. y Jordan, T. 178. Present-day plate motions. J. Geophys. Res., Vol. 83, p. 5331–5334.
Nakagawa, I.; Nakai, S.; Shich, R.; Tajima, H.; Izutuya, S.; Kono, Y.; Higashi, T.; Fujimoto, H.; Murakami, M.; Tijima, K. and Funaki, M. 1983. Precise calibration of scale values of la Coste and Romberg gravimeters and International Gravimetric Connections along the Circum-Pacific Zone. Final Report of the Geophysical Institute, Kyoto University.
Rundle, S. and Carr, M. 1975. Gravity changes and the Palmdale Uplift. Geophys. Res. Lett., Vol. 5, p. 41–44.
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© 1993 Springer-Verlag Berlin Heidelberg
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Avendaño, M.S., Araneda, M. (1993). New First Order Gravity Stations in Chile: Implications. In: Torge, W., Fletcher, A.G., Tanner, J.G. (eds) Recent Geodetic and Gravimetric Research in Latin America. International Association of Geodesy Symposia, vol 111. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-88055-1_7
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DOI: https://doi.org/10.1007/978-3-642-88055-1_7
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