Características mineralógicas de los sedimentos aluviales holocenos del Barranco Grande (Bardenas Reales de Navarra)

Bastida, Joaquín; Osácar, María Cinta; Muñoz Jiménez, Arsenio; Sancho, Carlos

Mineralogical characteristics ofHolocene alluvial sediments from the Barranco Grande (Bardenas Reales ofNavarra)

Author

Bastida, Joaquín; Osácar, María Cinta; Muñoz Jiménez, Arsenio; Sancho, Carlos
Publication Date

2010
Abstract

Mineralogical composition of Holocene alluvial deposits from Bardenas Reales of Navarra is studied and compared with the Miocene mudrock substratum. An Early Holocene muddy-silty unit and another Middle-Upper Holocene sandy unit can be differentiated. Mineralogy semiquantitative results are compatible with weak weathering processes affecting the parent materials under humid conditions prior to Holocene. Besides, differences between alluvial units can be explained in terms of bedrock weathering, sedimentary features, recyclingofsediments and pedogenetic processes
URI

http://hdl.handle.net/10272/7836

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Fichero	Tamaño	Formato	Ver	Description
Caracteristicas-mineralogicas.pdf	573.5Kb	PDF	View/Open

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Geogaceta -- Nº 48, (2010)

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Características mineralógicas de los sedimentos aluviales holocenos del Barranco Grande (Bardenas Reales de Navarra)

Mineralogical characteristics ofHolocene alluvial sediments from the Barranco Grande (Bardenas Reales ofNavarra)

Author

Bastida, Joaquín; Osácar, María Cinta; Muñoz Jiménez, Arsenio; Sancho, Carlos

Publication Date

2010

Abstract

Mineralogical composition of Holocene alluvial deposits from Bardenas Reales of Navarra is studied and compared with the Miocene mudrock substratum. An Early Holocene muddy-silty unit and another Middle-Upper Holocene sandy unit can be differentiated. Mineralogy semiquantitative results are compatible with weak weathering processes affecting the parent materials under humid conditions prior to Holocene. Besides, differences between alluvial units can be explained in terms of bedrock weathering, sedimentary features, recyclingofsediments and pedogenetic processes