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Late Pleistocene-Holocene paleoenvironments in the middle basin of the Salado river, province of Buenos Aires, Argentina
(Pergamon-Elsevier Science Ltd, 2021-01)
The Salado river basin is the largest one in the Buenos Aires province, with an area near 170,000 km2 . This work aims to perform a stratigraphic analysis of the middle sector of this basin to provide information on the ...
Facing unprecedented drying of the Central Andes? Precipitation variability over the period AD 1000-2100
(Institute of Physics Publishing, 2015-08)
Projected future trends in water availability are associated with large uncertainties in many regions of the globe. In mountain areas with complex topography, climate models have often limited capabilities to adequately ...
Oxygen isotope ratios ( 18O/ 16O) of hemicellulose-derived sugar biomarkers in plants, soils and sediments as paleoclimate proxy II: Insight from a climate transect study
(Elsevier, 2014-11)
The oxygen isotopic composition of precipitation (d18Oprec) is well known to be a valuable (paleo-)climate proxy. Paleosols and sediments and hemicelluloses therein have the potential to serve as archives recording the ...
A late Holocene paleoclimate reconstruction from Boqueirão Lake sediments, northeastern Brazil
(Brasil, 2014)
Lake level fluctuations and environmental changes during the late Holocene were inferred from changes in sedimentology, bulk and isotope organic geochemistry, and a diatom based transfer function in a sediment core from ...
Ground/satellite observations and atmospheric modeling of dust storms originating in the high Puna‐Altiplano deserts (South America): Implications for the interpretation of paleo‐climatic archives
(American Geophysical Union, 2013-05)
This study provides a detailed description of the sources, transport, dispersion, and deposition of two major dust events originating from the high‐altitude subtropical Puna‐Altiplano Plateau (15?26°S; 65?69°W) in South ...
Using molecular phylogenetics and species distribution modeling to test the role of orogeny and paleoclimate change in driving allopatry in a frog of the northern Colombian Andes
(Universidad de los AndesMaestría en Ciencias BiológicasFacultad de CienciasDepartamento de Ciencias Biológicas, 2017)
"We evaluate the role of the Northern Andes high peaks and the Magdalena Valley, creating barriers to dispersal and promoting vicariance among mid-elevation populations of Rheobates palmatus (Aromobatidae). Frog populations ...
Tectonically conditioned record of continental interior paleoclimate during the Carnian Pluvial Episode: The Upper Triassic Los Rastros Formation, Argentina
(Geological Society of America, 2021-03)
Discerning paleoclimate parameters in depositional systems of the continental interior is challenging because the system response and stratigraphic record of climate are controlled by tectonic processes and are mediated ...
Cross-stratigraphies from a seismically active mud lens off Peru indicate horizontal extensions of laminae, missing sequences, and a need for multiple cores for high resolution records
(Elsevier, 2014)
Marine laminated sediments in dysoxic areas of the ocean floor are an excellent archive for high-resolution climate reconstructions. While the existence of discontinuities produced by natural events, such as underwater ...
Mapping of a Paleochannel Through a Geoelectric SurveyMapeamento de um Paleocanal por Levantamento Geoelétrico
(Centro de Ciências Matemáticas e da Natureza, Instituto de Geociências, Universidade Feder, 2019)