Artículo

OrgeIra, M.J.; Walther, A.M.; Vásquez, C.A.; Tommaso, I.D.; Alonso, S.; Sherwood, G.; Yuguan, H.; Vilas, J.F.A. "Mineral magnetic record of paleoclimate variation in loess and paleosol from the Buenos Aires formation (Buenos Aires, Argentina)" (1998) Journal of South American Earth Sciences. 11(6):561-570
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Abstract:

Environmental magnetic techniques were applied to a loess-paleosol sequence of the Chacopampean plain (Buenos Aires, Argentina). Mineral magnetic carriers and their grain size were identified in order to detect magnetic mineral fluctuations associated with climatic changes. Multidomain magnetite of detrital origin dominates the record. In paleosols, a high coercivity fraction was identified. Horizons with no visual evidence of pedogenesis, but showing magnetic behavior analogous to that of paleosols were observed and are thought to represent environmental conditions similar to those prevailing during paleosol formation. The results suggest that the magnetic signal yielded by paleosols in these South American loess deposits is different from that in the Chinese loess. This may be due to differences in parent materials, diagenetic processes and/or differences in paleoclimatic conditions in both regions.

Registro:

Documento: Artículo
Título:Mineral magnetic record of paleoclimate variation in loess and paleosol from the Buenos Aires formation (Buenos Aires, Argentina)
Autor:OrgeIra, M.J.; Walther, A.M.; Vásquez, C.A.; Tommaso, I.D.; Alonso, S.; Sherwood, G.; Yuguan, H.; Vilas, J.F.A.
Filiación:Consejo Nac. de Invest. Cie. y T., Buenos Aires, Argentina
Fac. de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
Liverpool John Moores University, Liverpool, United Kingdom
Ctro. de Invest. en Recurs. G., Buenos Aires, Argentina
Lab. of Paleomagnetism Daniel V., FCEN, UBA, Ciudad Universitaria Pab II, 1428 Buenos Aires, Argentina
Palabras clave:loess; magnetic mineral; paleoclimate; paleosol; Quaternary; Argentina
Año:1998
Volumen:11
Número:6
Página de inicio:561
Página de fin:570
DOI: http://dx.doi.org/10.1016/S0895-9811(98)00038-8
Título revista:Journal of South American Earth Sciences
Título revista abreviado:J. South Am. Earth Sci.
ISSN:08959811
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08959811_v11_n6_p561_OrgeIra

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Citas:

---------- APA ----------
OrgeIra, M.J., Walther, A.M., Vásquez, C.A., Tommaso, I.D., Alonso, S., Sherwood, G., Yuguan, H.,..., Vilas, J.F.A. (1998) . Mineral magnetic record of paleoclimate variation in loess and paleosol from the Buenos Aires formation (Buenos Aires, Argentina). Journal of South American Earth Sciences, 11(6), 561-570.
http://dx.doi.org/10.1016/S0895-9811(98)00038-8
---------- CHICAGO ----------
OrgeIra, M.J., Walther, A.M., Vásquez, C.A., Tommaso, I.D., Alonso, S., Sherwood, G., et al. "Mineral magnetic record of paleoclimate variation in loess and paleosol from the Buenos Aires formation (Buenos Aires, Argentina)" . Journal of South American Earth Sciences 11, no. 6 (1998) : 561-570.
http://dx.doi.org/10.1016/S0895-9811(98)00038-8
---------- MLA ----------
OrgeIra, M.J., Walther, A.M., Vásquez, C.A., Tommaso, I.D., Alonso, S., Sherwood, G., et al. "Mineral magnetic record of paleoclimate variation in loess and paleosol from the Buenos Aires formation (Buenos Aires, Argentina)" . Journal of South American Earth Sciences, vol. 11, no. 6, 1998, pp. 561-570.
http://dx.doi.org/10.1016/S0895-9811(98)00038-8
---------- VANCOUVER ----------
OrgeIra, M.J., Walther, A.M., Vásquez, C.A., Tommaso, I.D., Alonso, S., Sherwood, G., et al. Mineral magnetic record of paleoclimate variation in loess and paleosol from the Buenos Aires formation (Buenos Aires, Argentina). J. South Am. Earth Sci. 1998;11(6):561-570.
http://dx.doi.org/10.1016/S0895-9811(98)00038-8