A5043614711- Geology and Paleoclimatology Research
- Paleontology and Stratigraphy of Fossils
- Geological formations and processes
- Evolution and Paleontology Studies
- Paleontology and Evolutionary Biology
- Plant Diversity and Evolution
- Geological and Tectonic Studies in Latin America
- Polar Research and Ecology
- Geological and Geochemical Analysis
- Geological and Geophysical Studies Worldwide
- Marine Biology and Ecology Research
- Pleistocene-Era Hominins and Archaeology
- Ichthyology and Marine Biology
- Geochemistry and Elemental Analysis
- Geochemistry and Geologic Mapping
- Hydrocarbon exploration and reservoir analysis
- Botanical Research and Applications
- Marine animal studies overview
- Space Exploration and Technology
- Marine Bivalve and Aquaculture Studies
- Isotope Analysis in Ecology
- Geological Studies and Exploration
- Geophysics and Gravity Measurements
- Methane Hydrates and Related Phenomena
- Crustacean biology and ecology
University of Buenos Aires
2013-2025
Consejo Nacional de Investigaciones Científicas y Técnicas
2014-2024
Fundación Ciencias Exactas y Naturales
2005-2024
Centro Científico Tecnológico - San Juan
2002-2023
Institute of Astronomy and Space Physics
2013-2023
Instituto de Geociencias
2022
National University of Tierra del Fuego
2020
National University of La Rioja
2018
Servicio Geológico Minero Argentino
2018
Bernardino Rivadavia Natural Sciences Museum
2002-2018
Abstract Antarctic and Southern Ocean science is vital to understanding natural variability, the processes that govern global change role of humans in Earth climate system. The potential for new knowledge be gained from future substantial. Therefore, international community came together ‘scan horizon’ identify highest priority scientific questions researchers should aspire answer next two decades beyond. Wide consultation was a fundamental principle development collective, view most...
Research Article| September 01, 2010 High-precision U-Pb calibration of Carboniferous glaciation and climate history, Paganzo Group, NW Argentina E.L. Gulbranson; Gulbranson † 1Department Geology, University California, One Shields Avenue, Davis, California 95616, USA †E-mail: gulbranson@geology.ucdavis.edu Search for other works by this author on: GSW Google Scholar I.P. Montañez; Montañez M.D. Schmitz; Schmitz 2Department Geosciences, Boise State University, Isotope Geology Laboratory,...
Abstract. The shells of marine mollusks are widely used archives past climate and ocean chemistry. Whilst the measurement mollusk δ18O to develop records change is a commonly approach, it has proven challenging reliable independent paleothermometers that can be deconvolve contributions temperature fluid composition on molluscan oxygen isotope compositions. Here we investigate dependence 13C–18O bond abundance, denoted by measured parameter Δ47, in shell carbonates bivalve assess its...
—A new elasmosaurid, Vegasaurus molyi, gen. et sp. nov., from Vega Island, James Ross Archipelago, Antarctica, is described. The holotype and only specimen of this species (MLP 93-I-5-1) was collected the lower Maastrichtian Cape Lamb Member Snow Hill Island Formation. molyi Antarctic elasmosaurid one a few Late Cretaceous elasmosaurids Southern Hemisphere whose postcranial anatomy well known. distinguished other by following combination characters: cervical region with 54 vertebrae...
Department of Earth Sciences, University California, Riverside, California 92521Duck-billed dinosaurs or hadrosaurs are a very common family ofdinosaurs in the Late Cretaceous North America and Eurasia withrare occurrences South America. Here, we report first hadrosaurrecovered Antarctica from sandstones late Maastrichtian age, VegaIsland, Antarctic Peninsula (Fig. 1) during joint U.S.-Argentinian geo-logical paleontological field expedition to island. This discoverysupports hypothesis...
Abstract The Miocene Vinchina Formation (VFm) is the thickest sedimentary unit of Basin, an Andean broken-foreland basin in northwestern Argentina. Between 16 and 7 Ma, more than 10,000 meters sediments accumulated this basin. sedimentology compositional characteristics have been thoroughly studied. However, its diagenetic history poorly understood. Based on composition authigenic minerals their temporal relationships seventy-eight sandstone samples, study presents interpretation diagenesis...
Abstract: Worm tubes, which exhibit the replaced tube‐lining membrane, have been collected from lowermost Lower Eocene Acantilados Allomember of La Meseta Formation, Seymour Island, Antarctica. The discovery represents oldest examples preservation membrane tube‐dwelling Polychaeta in fossil record. A new genus and species, Caprascolex antarcticus , are described. specimens preserved as thin coatings amorphous iron oxide on inner surface moulds interpreted to be membrane. Examination rarely...
Abstract The Eocene La Meseta Formation is an unconformity-bounded unit that records the geological evolution of James Ross Basin, NE Antarctic Peninsula, during a period decreasing tectonism and lull in volcanic activity. This represents composite incised valley, filled with deltaic, estuarine shallow-marine deposits showing landwards facies shift indicates deposition overall sea-level rise. six unconformity-based internal units (Valle de las Focas, Acantilados, Campamento, Cucullaea I, II...