A5011615771- Geological and Geochemical Analysis
- Geological and Tectonic Studies in Latin America
- earthquake and tectonic studies
- Geological formations and processes
- Evolution and Paleontology Studies
- Geology and Paleoclimatology Research
- Geological and Geophysical Studies Worldwide
- Geochemistry and Geologic Mapping
- Pleistocene-Era Hominins and Archaeology
- Bat Biology and Ecology Studies
- Hydrocarbon exploration and reservoir analysis
- Paleontology and Stratigraphy of Fossils
- Clay minerals and soil interactions
- Therapeutic Uses of Natural Elements
- Animal Ecology and Behavior Studies
Consejo Nacional de Investigaciones Científicas y Técnicas
2012-2024
National University of Salta
2011-2024
Universidad Nacional de La Plata
2016
Abstract Two end‐member models have been proposed for the Paleogene Andean foreland: a simple W‐E migrating foreland model and broken‐foreland model. We present new stratigraphic, sedimentological structural data from Quebrada de los Colorados ( QLC ) Formation, in Eastern Cordillera, with which to test these two different models. Basin‐wide unconformities, growthstrata changes provenance indicate deposition of Formation tectonically active basin. Both west‐ east‐vergent structures, rooted...
The study of Paleogene mammals intermediate and low latitudes has increased in the last decades been clearly demonstrated their importance comprehension evolution faunistic changes outside Patagonia.The these faunas permits establishing new comparisons among contemporaneous associations, completing distributional patterns, evaluating evolutionary lineages relation to climatic conditions prevailing each different regions.In this work we diversity Dasypodidae recovered from Geste Formation...
Abstract Foreland basins are sensitive recorders of spatiotemporal variations in tectonic and climatic forcing associated with an approaching orogenic front. Thus, analysis foreland deposits their deformation patterns provenance signals allows assessment sedimentary processes during orogeny, providing clues to past environmental conditions. The Calchaquí region the southern part northwest Argentinian Eastern Cordillera (ca. 25–26°S lat) structurally evolved from a contiguous Paleogene Andes...
The Quebrada de Los Colorados Formation (Los Cardones National Park, Salta Province, north-western Argentina), is an Eocene–Oligocene unit well represented in the Calchaquí Valley area. Here we describe a new metatherian association recorded from base of this formation, inferred as middle Eocene. Represented taxa are: Sparassodonta, family indet.: Patene simpsoni; Polydolopimorphia, Bonapartheriiformes, Argyrolagoidea: family, genus, and species indet.; Bonapartherioidea, Prepidolopidae:...
Abstract Within the Central Andes of NW Argentina, spatiotemporal distribution and style deformation is strongly influenced by pre‐Cenozoic heterogeneities, mostly related to Salta rift extension in Cretaceous. At enigmatic junction thin‐skinned Subandean belt thick‐skinned Santa Barbara System, Tilcara Range adjacent San Lucas block, located within Eastern Cordillera, show thermochronological field evidence multiple exhumation events. Mesozoic (140‐115 Ma), pre‐Andean basement highs...
The Santa Bárbara System (SBS), located at the Central Andes of northwestern Argentina, is a thick-skinned fold-and-thrust belt (FTB) that represents outermost portion orogenic wedge and western boundary undeformed Chaco-Paraná foreland basin. present-day structural architecture SBS mainly governed by reactivation basement anisotropies inversion Cretaceous normal faults imprinting an overall vergence towards west. Some major show evidence active tectonics in landscape,...
Abstract The present‐day deformation style of the Eastern Cordillera in NW Argentina is strongly influenced by inversion pre‐existing Paleozoic and Mesozoic structures. In particular, extensional faults lithological contrasts resulting from Cretaceous–Paleogene Salta Rift phase form heterogeneities that were preferentially reactivated during Andean orogeny. Constraining timing characteristics reactivation a key to understanding interplay between tectonics inherited crustal anisotropies. this...
ABSTRACT The Puna–Altiplano Plateau of the Central Andes is second-highest plateau in world (after Tibet), with a mean elevation 4000 m.a.s.l. and an arid to hyperarid climate. Uplift has affected lower-level atmospheric circulation, acting as barrier humid easterly winds from Amazon basin favoring across-strike precipitation gradient resulting climate towards east orogen's interior. In modern climate, Bolivian High anticyclone regulates upper troposphere but little known about high-altitude...
<p>The transition from the Eastern Cordillera to Santa Barbara System in NW Argentina is characterized by inversion of pre-existing Cretaceous and Paleozoic structures. Within this complex fold-and-thrust belt, Miocene Cianzo basin with its rich sedimentary structural record tells tale Andean reactivation an extensional fault system incorporation former Salta rift into orogenic wedge. In Cretaceous, intracontinental was widely distributed Argentina, multiple sub-basins...
<p>The Cretaceous period in NW Argentina is dominated by the formation of Salta rift basin, an intracontinental basin with multiple branches extending from central Salta-Jujuy High. One these ENE-WSW striking Lomas de Olmedo sub-basin, which hosts up to 5 km syn- and post-rift deposits Group, accommodated substantial throw along SW-NE normal faults subsequent thermal subsidence during Cretaceous-Paleogene. Early compressive movement Eastern Cordillera led a foreland setting...