The Luingo caldera: The south-easternmost collapse caldera in the Altiplano–Puna plateau,NW Argentina |
| |
| Authors: | Silvina Guzmán Ivan Petrinovic |
| |
| Institution: | 1. CONICET-IBIGEO, Museo de Ciencias Naturales, Universidad Nacional de Salta. Mendoza 2, (4400) Salta, Argentina;2. CICTERRA-FCEFyN, Universidad Nacional de Córdoba, Av. Vélez Sarsfield 1611, X5016GCA, Córdoba, Argentina |
| |
| Abstract: | This article identifies the Pucarilla–Cerro Tipillas Volcanic Complex and its major eruptive source, the Luingo caldera (26° 10′S–66° 40′W). Detailed geological mapping, stratigraphic sections, facies analysis and correlations, including the identification of typical caldera components, allow us to infer the position of a collapse caldera, elongated at N65° and with a diameter of 19 km × 13 km, which is responsible for an eruption of 135 km3 (DRE) of magma. The high-crystal contents of the associated ignimbrites, combined with its tectonic setting, indicate that regional and local tectonic structures played a crucial role in the formation of the caldera. |
| |
| Keywords: | collapse caldera Cerro Galá n Southern Central Volcanic Zone Miocene volcanism Luingo caldera |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
