Tectonics, Climate, and Landscape Evolution of the Southern Central Andes: the Argentine Puna Plateau and Adjacent Regions between 22 and 30°S

Taxonomy of Ixinandria Isbrücker & Nijssen (Loricariidae: Loricariinae) based on morphological and molecular data

“…Andean orogeny and climate have had profound influence on the biota of the Central Cordillera in northeastern Argentina and southern Bolivia. The geological and climatic development during the late Tertiary and early Quaternary have had a significant impact on the establishment of orographic barriers and the regulation and distribution of rain in this region and, as a consequence, on the establishment and continous changing of hydrographic drainages (Alonso et al, 2006).…”

Erosion rates and erosion patterns of Neogene to Quaternary stratovolcanoes in the Western Cordillera of the Central Andes: An SRTM DEM based analysis

“…Under the arid climate of the Altiplano, these glacial valleys are fossil landforms on the volcanoes, further masked by deposits from ongoing (although slow-rate) areal erosion processes such as slumping, creep and occasional slope failure (e.g. Strasser and Schlunegger, 2005;Alonso et al, 2006). By contrast, under the more humid climate of South Peru, volcanic terrains have been more deeply incised by canyons and normal, dendritic drainage pattern, which overprinted radial systems of glacial valleys (e.g.…”

“…Towards the Western Cordillera, erosion rates increase gradually to >10 m/Ma, as measured by cosmogenic nuclides (Kober et al, 2007) and on the basis of drainage basin analysis (Riquelme et al, 2008). Low erosion rates, endorheism, and a poorly developed drainage system left a largely undissected, lowrelief fossil surface in particular on the western margin of the plateau (Wörner et al, 2000;Hartley and Chong, 2002;Hartley, 2003;Dunai et al, 2005;Alonso et al, 2006;Strecker et al, 2007).…”

A geomorphological map of the Quebrada de Purmamarca, Jujuy, NW Argentina

“…This geological setting accounts for a steep relief, a large complexity of geomorphic forms and processes within a relatively limited spatial range and active tectonic processes. In addition, NW Argentina is situated at the transition between Research on Cenozoic landscape history and the reconstruction of past surface environments in NW Argentina has included studies on longer-term landscape evolution with a focus on climatic and tectonic interactions (Alonso et al, 2006;Strecker et al, 2007) and the investigation of Late Quaternary environmental changes as seen in various geomorphological archives (Alcalde and Kulemeyer, 1999;Zipprich et al, 1999;Trauth et al, 2000;Bookhagen et al, 2001;Tchilinguiriani and Pereyra, 2001;Haselton et al, 2002;Kull et al, 2003;Trauth et al, 2003;Hermanns et al, 2004;Kull et al, 2008). Some efforts have recently been made to achieve improved age control of the >100 m high depositional terrace levels observed along the larger intramontane valleys (Robinson et al, 2005;Spencer and Robinson, 2008).…”