Vaca M. A., Bablon M., Andrade S. D., Hidalgo S., Quidelleur X., Vasconez F. J., Lahitte P., Samaniego Pablo, Mueller A. V. (2023). New geological and geochronological constraints on the evolution of the Cotacachi-Cuicocha volcanic complex (Ecuador). Journal of South American Earth Sciences, 128, 104489 [18 p.]. ISSN 0895-9811.
Titre du document
New geological and geochronological constraints on the evolution of the Cotacachi-Cuicocha volcanic complex (Ecuador)
Vaca M. A., Bablon M., Andrade S. D., Hidalgo S., Quidelleur X., Vasconez F. J., Lahitte P., Samaniego Pablo, Mueller A. V.
Source
Journal of South American Earth Sciences, 2023,
128, 104489 [18 p.] ISSN 0895-9811
Extensive fieldwork at the Cotacachi-Cuicocha Volcanic Complex (CCVC, North of Ecuador) resulted in a new collection of geological data including cartography, chronology, petrography, geochemistry, and morphology. This volcanic complex is formed by a central volcano (Cotacachi: 4939 m asl, current bulk volume of 56 ± 4 km3), several peripheral domes, and a 3 km wide volcanic caldera (Cuicocha: 4.2 ± 0.1 km3). CCVC comprises three stratigraphic members: The first, Cotacachi Basal, represents the initial phase of construction, which started at 173 ± 4 ka with a basal andesitic lava flow succession (
Plan de classement
Géologie et formations superficielles [064]
;
Géophysique interne [066]
