Remarkable variability of dyke features at the Vicuña Pampa Volcanic Complex, Southern Central Andes

• Published in: Terra Nova
• Main Authors: Guzmán, Silvina, Neri, Marco, CARNIEL, Roberto, Martí, Joan, Grosse, Pablo, Montero López, Carolina, Geyer, Adelina
• Other Authors: Carniel, Roberto
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2017
• Subjects: dykes; dyke textures; volcanic massif; Vicuña Pampa; Central Andes; EXPLOSIVE ERUPTION; BASALTIC VOLCANOS; SYSTEMS; EMPLACEMENT; FEEDER; INJECTIONS; MECHANICS; TRANSPORT; FRACTURE; ICELAND; Pampa; Iceland
• Online Access: http://hdl.handle.net/11390/1107338; https://doi.org/10.1111/ter.12268; http://onlinelibrary.wiley.com/doi/10.1111/ter.12268/abstract

Dykes at the Vicuña Pampa Volcanic Complex, which are mostly basaltic (trachy)-andesite and (trachy)-andesite, are exposed at the base and along the walls of a large depression resulting from intense degradation. Dykes intruding stiff layers (lavas, plugs and necks) are thin, mostly dip >60° and...