A5014543615- Geology and Paleoclimatology Research
- Paleontology and Stratigraphy of Fossils
- Geological formations and processes
- Geological and Geochemical Analysis
- Evolution and Paleontology Studies
- Paleontology and Evolutionary Biology
- Geochemistry and Elemental Analysis
- Geological and Tectonic Studies in Latin America
- Marine Biology and Ecology Research
- Coastal and Marine Dynamics
- earthquake and tectonic studies
- Geochemistry and Geologic Mapping
- Ichthyology and Marine Biology
- Geological and Geophysical Studies Worldwide
- Cryospheric studies and observations
- Hydrocarbon exploration and reservoir analysis
- Plant Diversity and Evolution
- Methane Hydrates and Related Phenomena
- Fish biology, ecology, and behavior
- High-pressure geophysics and materials
- Plant and Fungal Species Descriptions
- Clay minerals and soil interactions
- Geological Studies and Exploration
- Polar Research and Ecology
- Radioactive element chemistry and processing
University of Buenos Aires
2016-2025
Consejo Nacional de Investigaciones Científicas y Técnicas
2015-2025
Fundación Ciencias Exactas y Naturales
2016-2025
Centro Científico Tecnológico Patagónico
2016-2024
Instituto de Geociencias
2021-2022
Centro Científico Tecnológico - Tucumán
2002-2018
Bernardino Rivadavia Natural Sciences Museum
2016
Universidad Nacional del Sur
2016
Centro Científico Tecnológico - Patagonia Norte
2016
Repsol (Spain)
2015
Nearly all data regarding land-plant turnover across the Cretaceous/Paleogene boundary come from western North America, relatively close to Chicxulub, Mexico impact site. Here, we present a palynological analysis of section in Patagonia that shows marked fall diversity and abundance nearly plant groups K/Pg interval. Minimum occurs during earliest Danian, but only few palynomorphs show true extinctions. The low extinction rate is similar previous observations New Zealand. differing responses...
(2006). The earliest Tertiary therian mammal from South America. Journal of Vertebrate Paleontology: Vol. 26, No. 2, pp. 505-510.
Early Miocene shallow marine deposits in the region of Lago Posadas-Meseta Belgrano (Argentina) represent part “Patagoniense” transgression, an Atlantic incursion that flooded large Patagonia, including Austral (foreland) Basin (southern Patagonia). These deposits, referred as El Chacay or Guadal (Chile) formations, and transition to overlying Santa Cruz Formation were divided into seven facies: subtidal sand-bars, sandy muddy shelf estuarine complex fluvial channels floodplains....
Abstract Upper Maastrichtian to lower Paleocene, coarse‐grained deposits of the Lefipán Formation in Chubut Province, (Patagonia, Argentina) provide an opportunity study environmental changes across Cretaceous–Palaeogene (K–Pg) boundary a shallow marine depositional environment. Marine palynological and organic geochemical analyses were performed on K–Pg interval at San Ramón section. The records from section are characteristic highly dynamic, nearshore setting. High abundances terrestrial...
This work presents new K-Ar and XRD illite data of Middle Jurassic sedimentary sequences (i.e., Mount Flora Camp Hill formations) the Antarctic Peninsula, providing a thermal evolution for Mesozoic tectonic history Peninsula adjacent regions. Samples Formation at Peninsula/Botany Bay yielded middle Permian to early Triassic ages, which are associated with upper lower anchizonal conditions, reflecting input detrital derived from Trinity Group. Maximum temperatures up ca. 175 °C constrained by...
ABSTRACT Bioclastic phosphorites composed of linguliform brachiopod shell debris remain largely unexplored from a sedimentological, process‐oriented perspective. Understanding the hydrodynamic behaviour these low‐density, platy sediments is essential for elucidating concentration mechanisms driving their accumulation. The present experimental study delves into this issue through determination settling velocity and critical shear organo‐phosphatic bioclasts derived extant Lingula anatina...
Other| February 01, 2001 Nature and Origin of Spectacular Marine Miocene Shell Beds Northeastern Patagonia (Argentina): Paleoecological Bathymetric Significance CLAUDIA J. DEL RÍO; RÍO 1Museo Argentino de Ciencias Naturales "Bernardino Rivadavia", Sección Paleoinvertebrados, Angel Gallardo 470 (1405), Buenos Aires, Argentina Search for other works by this author on: GSW Google Scholar SERGIO A. MARTÍNEZ; MARTÍNEZ 2Instituto Nacional Geología y Paleontología, Facultad Ciencias, Iguá 4225...
Research Article| March 01, 2007 Faunal evidence for reduced productivity and uncoordinated recovery in Southern Hemisphere Cretaceous-Paleogene boundary sections Martin Aberhan; Aberhan 1Museum für Naturkunde, Humboldt-Universität Berlin, Invalidenstrasse 43, D-10115 Germany Search other works by this author on: GSW Google Scholar Sven Weidemeyer; Weidemeyer Wolfgang Kiessling; Kiessling Roberto A. Scasso; Scasso 2Departamento de Ciencias Geológicas, Facultad Exactas y Naturales,...