Diaz Martinez Enrique. (1997). Facies y ambientes sedimentarios de la Formacion Cancaniri (Silurico inferior) en la cumbre de La Paz, norte de la Cordillera Oriental de Bolivia. Geogaceta (, (22), p. 55-57. ISSN 0213-683X.
Titre du document
Facies y ambientes sedimentarios de la Formacion Cancaniri (Silurico inferior) en la cumbre de La Paz, norte de la Cordillera Oriental de Bolivia
Année de publication
1997
Type de document
Article
Auteurs
Diaz Martinez Enrique
Source
Geogaceta (, 1997,
(22), p. 55-57 ISSN 0213-683X
Facies analysis of a continuous outcrop of the Cancañiri Formation (latest Ashgillian-Llandoverina) at La Cumbre (NE of La Paz, Bolivia) allowed for a thorough interpretation of sedimentary processes and environments envolved during its deposition. Distal turbidites and dark shales indicate a deep marine (offshore) environment; whereas interbedded mud flows, debris flows and deformed slided slabs provide evidence for sediment instability and resedimentation. Outsized granite clasts indicate local glaciation of the source area. Tectonic deformation and the resulting reliefs may be identified as the origin for the instability and local glaciation, respectively (Résumé d'auteur).
