Constraints on Brunhes low-latitude paleosecular variation Iztaccihuatl stratovolcano, basin of Mexico
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Los datos paleomagnéticos para lavas del volcán Iztaccíhuatl permiten analizar la variación paleosecular del campo geomagnético en la región central de Mexico. La parte superior del volcán fue formada durante el Cron de Brunhes, lo que es apoyado por la polaridad normal y la posición polar media (Steele, 1985). El periodo de actividad es del orden 580 000 a 76 000 años, sugerido en los datos de K-Ar (Nixon et al., 1986). Las discrepancias en las estimaciones reportadas por Steele (1985) y Bohnel et al. (1990) dependen de las diferentes metodologías y características estadísticas asumidas para la población de polos geomagnéticos virtuales (VGP). El polo medio es 88.1 °N, 34.0°E (B=21, K=88, A95=3.4°). La distribución de VGPs es alargada y no Fisheriana, lo que sugiere efectos adicionales a los de variación secular. Estos pueden incluir efectos tectónicos locales o excursiones geomagnéticas. La dispersión de VGPs que caracteriza mejor la variación paleo secular es 7.4 °, relativamente baja (7° menor) en comparación con los datos estimados de modelos globales con dependencia de latitud. Este valor es similar a los estimados para la región del Pacifico central, en las islas de Hawaii, Pagan y Marianas. El centro de Mexico parece formar parte de esta región de bajo campo no dipolar del Pacifico.
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BAAG, C. G. and C. E. HELSLEY, 1974. Shape analysis of paleosecular variation data. J. Geophys. Res., 79, 4923-4932. DOI: https://doi.org/10.1029/JB079i032p04923
BINGHAM, D. K. and D. B. STONE, 1972. Secular variation in the Pacific ocean region. Geophys. J. R. Astr. Soc., 28, 337-355. DOI: https://doi.org/10.1111/j.1365-246X.1972.tb06797.x
BÖHNEL, H., J. URRUTIA-FUCUGAUCHI and E. HERRERO-BERVERA, 1990. Palaeomagnetic data from central Mexico and their use for palaeosecular variation studies. Phys. Earth Planet. Inter., 64, 224-236. DOI: https://doi.org/10.1016/0031-9201(90)90039-Z
COX, A., 1962. Analysis of present geomagnetic field for comparison with paleomagnetic results. J. Geomag. Geoelectr.,13, 101-112. DOI: https://doi.org/10.5636/jgg.13.101
COX, A., 1969. Confidence limits for the precision parameter k. Geophys. J. R. Astr. Soc., 17, 545-549. DOI: https://doi.org/10.1111/j.1365-246X.1969.tb00257.x
COX, A., 1975. The frequency of geomagnetic reversals and the symmetry of the non dipole field. Rev. Geophys. Space Phys., 13, 35-51. DOI: https://doi.org/10.1029/RG013i003p00035
COX, A. and R. R. DOELL, 1964. Long period variation of geomagnetic field. Bull. Seismol. Soc. Am., 54, 2243-2270.
DOELL, R. R. and A. COX, 1963. The accuracy of the paleomagnetic method as evaluated from historic Hawaiian lava flows. J. Geophys. Res., 68, 1997-2009. DOI: https://doi.org/10.1029/JZ068i007p01997
DOELL, R. R. and A. COX, 1971. Pacific geomagnetic secular variation. Science, 71, 248-254. DOI: https://doi.org/10.1126/science.171.3968.248
DOELL, R.R. and A. COX, 1972. The Pacific geomagnetic secular variation anomaly and the question of lateral uniformity in the lower mantle. In: The Nature of the Solid Earth, McGraw-Hill, New York, pp. 245-284.
ENGEBRETSON, D. C. and M. E. BECK, 1978. On the shape of directional data sets. J. Geophys. Res., 83, 5979-5982. DOI: https://doi.org/10.1029/JB083iB12p05979
FISHER, N. I., T. LEWIS and M. WILLCOX, 1981. Tests of discordancy for samples from Fisher's distribution on the sphere. Appl. Statist., 30, 230-237. DOI: https://doi.org/10.2307/2346346
FISHER, R. A., 1953. Dispersion on a sphere. Proc. R. Astr. Soc., London, Ser. A, 127, 295-305. DOI: https://doi.org/10.1098/rspa.1953.0064
HAMILTON, T. S. and M. E. EVANS, 1983. A magnetostratigraphic and secular variation study of Level Mountain, northern British Columbia. Geophys. J. R. Astr. Soc., 73, 39-49. DOI: https://doi.org/10.1111/j.1365-246X.1983.tb03805.x
HERRERO-BERVERA, E., J. URRUTIA-FUCUGAUCHI, A. L. MARTIN DEL POZZO, H. BÖHNEL and J. GUERRERO, 1986. Normal amplitude Brunhes paleosecular variation at low-latitudes: A paleomagnetic record from the Trans-Mexican volcanic belt. Geophys. Res. Lett., 13, 1442-1445. DOI: https://doi.org/10.1029/GL013i013p01442
IRVING, E., 1964. Palaeomagnetism and its geological and geophysical applications. Wiley, 399 pp.
ISSACSON, L. B. and D. F. HEINRICHS, 1976. Paleomagnetism and secular variation of Eastern Island basalts. J. Geophys. Res., 81, 1476-1482. DOI: https://doi.org/10.1029/JB081i008p01476
LEWIS, T. and N.I. FISHER, 1982. Graphical methods for investigating the fit of a Fisher distribution to spherical data. Geophys. J. R. Astr. Soc., 69, 1-13. DOI: https://doi.org/10.1111/j.1365-246X.1982.tb04931.x
LUND, S. P., 1985. A comparison of the statistical secular variation recorded in some Late Quaternary lava flows and sediments, and its implications. Geophys. Res. Lett., 12, 251-254. DOI: https://doi.org/10.1029/GL012i005p00251
McELHINNY, M. W. and R. T. MERRILL, 1975. Geomagnetic secular variation over the past 5 m.y. Rev. Geophys. Space Phys., 13, 687-708. DOI: https://doi.org/10.1029/RG013i005p00687
McFADDEN, P. L., 1980a. Testing a palaeomagnetic study for the averaging of secular variation. Geophys. J. R. Astr. Soc., 61, 183-192. DOI: https://doi.org/10.1111/j.1365-246X.1980.tb04312.x
McFADDEN, P. L., 1980b. Determination of the angle in a Fisher distribution which will be exceeded with a given probability. Geophys. J. R. Astr. Soc., 60, 391-396. DOI: https://doi.org/10.1111/j.1365-246X.1980.tb04815.x
McFADDEN, P. L., 1982. Two-tier analysis in palaeomagnetism. Geophys. J. R. Astr. Soc., 71, 519-543. DOI: https://doi.org/10.1111/j.1365-246X.1982.tb06000.x
McFADDEN, P. L., R. T. MERRILL and M. W. McELHINNY, 1988. Dipole/quadrupole family modeling of paleosecular variation. J. Geophys. Res., 93, 11583-11588. DOI: https://doi.org/10.1029/JB093iB10p11583
McWILLIAMS, M. O., R. T. HOLCOMB and D. E. CHAMPION, 1982. Geomagnetic secular variation from C14-dated lava flows on Hawaii and the question of the Pacific non-dipole low. Philos. Trans. R. Soc. London, Ser. A, 306, 211-222. DOI: https://doi.org/10.1098/rsta.1982.0081
MOOSER, F., 1957. Los ciclos de vulcanismo que formaron la cuenca de México. 20th Int. Geol. Congr., México, Sec. 1, 337-348.
MOOSER, F., A. E. M. NAIRN and J. F. W. NEGENDANK, 1974. Palaeomagnetic investigations of the Tertiary and Quaternary igneous rocks: VIII, A palaeomagnetic and petrologic study of volcanics of the Valley of Mexico. Geol. Rundsch., 63, 451-483. DOI: https://doi.org/10.1007/BF01820824
NIXON, G. T., 1989. The geology of Iztaccíhuatl volcano and adjacent areas of the Sierra Nevada and Valley of Mexico. Sp. Pap. Geol. Soc. Am., 219, 45 pp. DOI: https://doi.org/10.1130/SPE219-p1
NIXON, G. T., A. DEMANT, R. L. ARMSTRONG and J. E. HARAKAL, 1987. K-Ar and geologic data bearing on the age and evolution of the Trans-Mexican Volcanic Belt. Geofísica Internacional, 26, 109-158. DOI: https://doi.org/10.22201/igeof.00167169p.1987.26.1.1191
STEELE, W. K., 1971. Paleomagnetic directions from the Iztaccihuatl volcano, Mexico. Earth Planet. Sci. Lett., 11, 211-218. DOI: https://doi.org/10.1016/0012-821X(71)90166-X
STEELE, W. K., 1985. Paleomagnetic constraints on the volcanic history of Iztaccihuatl. Geofísica Internacional, 24, 159-167. DOI: https://doi.org/10.22201/igeof.00167169p.1985.24.1.1068
TARLING, D. H., 1983. Palaeomagnetism. Chapman and Hall, 379 pp. DOI: https://doi.org/10.1007/978-94-009-5955-2
URRUTIA-FUCUGAUCHI, J., 1980. Palaeomagnetic studies of Mexican rocks. Ph. D. Thesis, Univ. Newcastle upon Tyne, U. K., 689 pp.
URRUTIA-FUCUGAUCHI, J., 1985. Comments on paleomagnetic constraints on the volcanic history of Iztaccíhuatl. Unpublished manuscript.
US-JAPAN PROGRAM, 1975. Paleosecular variation of lavas from the Marianas in the western Pacific ocean. J. Geomag. Geoelectr., 27, 57-66 (US-Japan Paleomagnetic cooperation Program in Micronesia). DOI: https://doi.org/10.5636/jgg.27.57
WATSON, G. S. and E. IRVING, 1957. Statistical methods in rock magnetism. Mon. Not. R. Astr. Soc., Geophys. Suppl., 7, 65-97. DOI: https://doi.org/10.1111/j.1365-246X.1957.tb02882.x
WHITE, S. E., 1962. Late Pleistocene glacial sequence for the west side of Iztaccihuatl, Mexico. Bull. Geol. Soc. Am., 73, 935-958. DOI: https://doi.org/10.1130/0016-7606(1962)73[935:LPGSFT]2.0.CO;2
WHITE, S. E., 1986. Quaternary glacial stratigraphy and chronology of Mexico. Quat. Sci. Rev., 5, 201-205. DOI: https://doi.org/10.1016/0277-3791(86)90186-1