Hidalgo C., Quantin Paul, Elsass F. (1997). Caracterización mineralógica de los tepetates tipo fragipán del valle de México. In :
Zebrowski Claude (ed.), Quantin Paul (ed.), Trujillo G. (ed.), Villamar M.D. (collab.). Suelos volcanicos endurecidos. Quito (ECU) ; Quito (ECU) ; Quito (ECU) ; Quito : UE ; ORSTOM ; PUCE ; UCE, p. 65-72. Suelos Volcanicos Endurecidos, 3., Quito (ECU), 1996/12/9-14.
Titre du document
Caracterización mineralógica de los tepetates tipo fragipán del valle de México
Année de publication
1997
Type de document
Colloque
Auteurs
Hidalgo C., Quantin Paul, Elsass F.
In
Zebrowski Claude (ed.), Quantin Paul (ed.), Trujillo G. (ed.), Villamar M.D. (collab.) Suelos volcanicos endurecidos
Source
Quito (ECU) ; Quito (ECU) ; Quito (ECU) ; Quito : UE ; ORSTOM ; PUCE ; UCE, 1997,
p. 65-72
Colloque
Suelos Volcanicos Endurecidos, 3., Quito (ECU), 1996/12/9-14
The tepetates of Mexico Highlands are indurated horizons with fragipan pr0perties. Tepetates appear among pyroclastic deposits (T1, T2, T3). A soil profile located near Texcoco, Mexico, including tepetate layers was studied. Mineralogical and microscopical features of this profile were studied using a series of methods. This report the main results of the study. Tepetates were characterized by several features: first, the nature of their parent material; second, a close matrix microstructure and third, their colloidal fraction. The latter is conformed mainly by laminated 1:1 to 2:1 mixed layer minerals made of flaky layers. These features can explain the fragipan properties of tepetates and most of their mechanical behaviour. (Résumé d'auteur).
Plan de classement
Constituants et propriétés des sols [068PROSOL]
Descripteurs
SOL ; INDURATION ; CENDRE VOLCANIQUE ; PYROCLASTITE ; HORIZON ; MINERALOGIE ; METHODE D'ANALYSE ; TEPETATE
Description Géographique
MEXIQUE
Localisation
Fonds IRD [F A010012910] ;
Montpellier (Centre IRD)
;
Quito
Identifiant IRD
fdi:010012913
