Analysis of gravimetric anomalies in Furnas caldera (Sao Miguel, Azores)

Journal of Volcanology and Geothermal Research

Volumn 92, Issue 1-2, 1999, Pages 67-81

  Montesinos, F G ^a   Camacho, A G ^a   Vieira, R ^a  

^a CSIC UCM Instituto de Astronomia y Geodesia IAG   (Spain)

Author keywords

Furnas caldera; Gravimetric anomaly; Stratovolcano

Indexed keywords

CALDERA; GRAVIMETRY; GRAVITY ANOMALY; VOLCANO;

AZORES;

EID: 0033394350     PISSN: 03770273     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0377-0273(99)00068-2     Document Type: Article

References (21)

1. Barzaghi A., Gandino A., Sanso F., Zenucchini C. The collocation approach to the inversion of gravity data. Geophys. Prospect. 40:1992;429-451.
2. Beltrao J.F., Silva J.B.C., Costa J.C. Robust polynomial fitting method for regional gravity estimation. Geophysics. 56:1991;80-89.
3. Booth B., Croasdale R., Walker G.P.L. A quantitative study of five thousand years of volcanism on São Miguel, Azores. R. Soc. London Philos. Trans. A. 288:1978;271-319.
4. Camacho A.G., Montesinos F.G., Vieira R. A three-dimensional gravity inversion applied to São Miguel Island (Azores). J. Geophys. Res. 102:1997;7705-7715.
5. Cole P.D., Queiroz G., Wallenstein N., Gaspar J.L., Duncan A.M., Guest J.E. An historic subplinian/phreatomagmatic eruption: the 1630 AD eruption of Furnas volcano, São Miguel, Azores. J. Volcanol. Geotherm. Res. 69:1995;117-135.
6. Fernandez L.A. Geology and petrology of the Nordeste volcanic complex, São Miguel, Azores. Geol. Soc. Am. Bull. 91:1980;675-680.
7. Gaspar, J.L., Ferreira, T., Queiroz, G., Wallenstein, N., Pacheco, J., Guest, J., Duncan, A., Cole, P., 1995. Evolução morfoestructural do vulcão das Furnas (ilha de S Miguel, Açores). Universidade do Porto Facultidade de Ciências, Museu e Laboratório Mineralógico e Geológico, IV Congresso Nacional de Geologia, Mem. 4, 999-1003.
8. Guest J.E., Gaspar J.L., Cole P.D., Queiroz G., Duncan A.M., Wallenstein N., Ferreira T., Pacheco J.M. Volcanic geology of Furnas volcano, São Miguel, Azores. J. Volcanol. Geotherm. Res. 92:1999;1-29.
9. Machado F. Acid volcanoes of San Miguel. Bull. Volcanol. 36:1973;319-327.
10. Martini, M., 1995. Conclusions in Final Report Synopsis of contract EV5V-CT92-0173. In: Forjaz, V.H. (Ed.), Furnas European Laboratory Volcano Project. EEC-CEC-DGXII, Environment Program, 1993-1995, Universidade dos Açores.
11. Mendes, L.A., Gonçalves, J.J., 1980. Estudios gravimétricos no Archipelago dos Açores. Descriçao e análise do campo gravimétrico na Ilha de São Miguel, entre 25°20′E 25°40′W, Rev. do Instituto Nacional de Meteorologia e Geofísica, No. 3, 5-36.
12. Moore R.B. Geology of three late Quaternary stratovolcanoes on São Miguel, Azores. U.S. Geol. Surv. Bull. 1900:1991;26.
13. Moritz, H., 1980. Advanced Physical Geodesy. Herbert Wichmann Verlag, Karlsruhe, Germany, 500 pp.
14. Nettleton L.L. Determination of density for reduction of gravimeter observations. Geophysics. 4:1939;176-183.
15. Nunes, J.C., Alves, M.C., Forjaz, V.H., 1994. Preliminary note on deformation monitoring of Furnas Laboratory volcano, S. Miguel island (Açores). In: Forjaz, V.H. (Ed.), Furnas European Laboratory Volcano Project Progress Report, 94-103.
16. Rymer H., Brown G.C. Gravity fields and the interpretation of volcanic structures: geological discrimination and temporal evolution. J. Volcanol. Geotherm. Res. 27:1986;229-254.
17. Sigmundsson F., Tryggvason E., Alves M., Alves J.L., Pálsson K., Ólafsson H. Slow inflation of the Furnas volcano, São Miguel, Azores, suggested from initial levelling and global positioning system measurements. Geophys. Res. Lett. 22:1995;1681-1684.
18. Searle R. Tectonic pattern of the Azores spreading centre and triple junction. Earth Planet. Sci. Lett. 51:1980;415-434.
19. Talwani M., Le Pichon X., Ewing M. Crustal structure and mid-ocean ridges: 2. Computed model from gravity and seismic refraction data. J. Geophys. Res. 70:1965;341-352.
20. Tarantola, A., 1987. Inverse Problem Theory: Methods for Data Fitting and Model Parameter Estimation. Elsevier, New York, 613 pp.
21. Williams D.L., Finn C. Evidence for a shallow pluton beneath the goat rocks wilderness, Washington, from gravity an magnetic data. J. Geophys. Res. 92(B6):1987;4867-4880.