Artículo

Orgeira, M.J.; Pereyra, F.X.; Vásquez, C.; Castañeda, E.; Compagnucci, R. "Rock magnetism in modern soils, Buenos Aires Province, Argentina" (2008) Journal of South American Earth Sciences. 26(2):217-224
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Abstract:

The influence of climate on the magnetic signal has been investigated assuming it is a first order factor in soil formation. In order to assess the degree of variability of the magnetic signal under different drainage conditions, Mollisols from the Pampean region developed on Pampean loess at varying topographical positions were studied. The sampled sites were located south and north of Buenos Aires in Verónica and Zárate, Pampa Ondulada. The magnetic signal is opposite in the two areas. The generation of superparamagnetic particles (SP) seems to be higher in Zárate. The loss of detrital magnetite could be higher in the less drained soils, in agreement with the hypothesis of loss of detrital magnetite by reductive process. As a simplified interpretation, it is suggested that the differential soil humidity in the studied soils could explain their different magnetic signal. The degree of drainage seems to be the variable that conditions the process of reduction loss. © 2008 Elsevier Ltd. All rights reserved.

Registro:

Documento: Artículo
Título:Rock magnetism in modern soils, Buenos Aires Province, Argentina
Autor:Orgeira, M.J.; Pereyra, F.X.; Vásquez, C.; Castañeda, E.; Compagnucci, R.
Filiación:Consejo Nacional de Investigaciones Científicas CONICET, Argentina
Daniel Valencio, Laboratory of Paleomagnetism, FCEN, Universidad de Buenos Aires, Pab. II, 1428 Buenos Aires, Argentina
Palabras clave:Environmental magnetism; Mollisols; Pampean loess; formation mechanism; humidity; loess; magnetite; Mollisol; reduction; Argentina; Buenos Aires [Argentina]; South America; Veronica
Año:2008
Volumen:26
Número:2
Página de inicio:217
Página de fin:224
DOI: http://dx.doi.org/10.1016/j.jsames.2008.03.007
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_v26_n2_p217_Orgeira

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Citas:

---------- APA ----------
Orgeira, M.J., Pereyra, F.X., Vásquez, C., Castañeda, E. & Compagnucci, R. (2008) . Rock magnetism in modern soils, Buenos Aires Province, Argentina. Journal of South American Earth Sciences, 26(2), 217-224.
http://dx.doi.org/10.1016/j.jsames.2008.03.007
---------- CHICAGO ----------
Orgeira, M.J., Pereyra, F.X., Vásquez, C., Castañeda, E., Compagnucci, R. "Rock magnetism in modern soils, Buenos Aires Province, Argentina" . Journal of South American Earth Sciences 26, no. 2 (2008) : 217-224.
http://dx.doi.org/10.1016/j.jsames.2008.03.007
---------- MLA ----------
Orgeira, M.J., Pereyra, F.X., Vásquez, C., Castañeda, E., Compagnucci, R. "Rock magnetism in modern soils, Buenos Aires Province, Argentina" . Journal of South American Earth Sciences, vol. 26, no. 2, 2008, pp. 217-224.
http://dx.doi.org/10.1016/j.jsames.2008.03.007
---------- VANCOUVER ----------
Orgeira, M.J., Pereyra, F.X., Vásquez, C., Castañeda, E., Compagnucci, R. Rock magnetism in modern soils, Buenos Aires Province, Argentina. J. South Am. Earth Sci. 2008;26(2):217-224.
http://dx.doi.org/10.1016/j.jsames.2008.03.007