A5028499226- Geology and Paleoclimatology Research
- Paleontology and Stratigraphy of Fossils
- Geological formations and processes
- Geological and Geochemical Analysis
- Evolution and Paleontology Studies
- Marine Biology and Ecology Research
- Geological and Tectonic Studies in Latin America
- Paleontology and Evolutionary Biology
- Plant Diversity and Evolution
- Ichthyology and Marine Biology
- earthquake and tectonic studies
- Hydrocarbon exploration and reservoir analysis
- Polar Research and Ecology
- Hydrology and Sediment Transport Processes
- Geochemistry and Geologic Mapping
- Cephalopods and Marine Biology
- Geological and Geophysical Studies Worldwide
- Geomagnetism and Paleomagnetism Studies
- Archaeological and Geological Studies
- Underwater Acoustics Research
- Geological Studies and Exploration
- Space Exploration and Technology
- Environmental and Cultural Studies in Latin America and Beyond
- Fish biology, ecology, and behavior
- Plant and animal studies
National University of Tierra del Fuego
2013-2023
Consejo Nacional de Investigaciones Científicas y Técnicas
2014-2023
Austral University
1999-2023
IAC (United States)
2020
Life Science Institute
2019
Tokyo Institute of Technology
2019
Universidad Nacional de La Plata
2016
Centro Científico Tecnológico - San Juan
2007-2012
Centro Científico Tecnológico Mar del Plata
2008
Whitney Museum of American Art
2008
The stratigraphy of the Argentinean Fuegian Andes reveals contrasting Mesozoic-Cenozoic tectonic regimes. Lemaire Formation, submarine complex bimodal volcanites, breccias, and sedimentary rocks; Yahgan volcaniclastic apron deep-marine andesite-rich turbidites mudstones; Beauvoir slope mudstones, all evidence late Jurassic early Cretaceous extension consequent origination Rocas Verdes Marginal Basin. basal ductile deformation, isoclinal folding, metamorphism these rocks indicate a...
Significance The flowering plant family Asteraceae (e.g. sunflowers, daisies, chrysanthemums), with about 23,000 species, is found almost everywhere in the world except Antarctica. (or Compositae) are regarded as one of most influential families diversification and evolution a large number animals that heavily depends on their inflorescences to survive bees, hummingbirds, wasps). Here we report discovery pollen grains unambiguously assigned remained buried Antarctic deposits for more than 65...
—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...
Recognizing folded and thrusted Eocene foreland strata of the oil-producing Austral Basin provides new insights on Paleogene evolution Tierra del Fuego Island adjacent Atlantic shelf. Field mapping petrographic micropaleontologic studies at Punta Torcida anticline depict an composite section about 1600 m thick assigned to La Despedida Group. This group is divided into three formations: (215 m), Leticia (520 Cerro Colorado (855 m). These formations are subdivided informal members. In...
Global Positioning System (GPS) measurements provide the first direct measurement of plate motion and crustal deformation across Scotia‐South America transform boundary in Tierra del Fuego. This accommodates a part overall between South Antarctica. The subaerial section Fuego, about 160 km length, is modeled as two dimensional, strike‐slip with east‐west strike. Along Magallanes‐Fagnano fault system, principal this portion boundary, relative left‐lateral on vertical at 6.6 ± 1.3 mm/year...
Abstract Time-calibrated balanced-cross sections of the eastern Fuegian Thrust–Fold Belt reveal many complex pro- and retro-vergent structures, rooted at base Cretaceous within Paleocene rocks. These structures involve unconformity-bounded syntectonic sequences Austral foreland basin, accommodate a minimum shortening c . 41.8 km. The kinematics thrust–fold belt are recorded by: (1) propagation basal décollement into foreland, forward-directed thrusting during Ypresian; (2) out-of-sequence in...
RESUMENSe caracteriza la evolución estratigráfica del Cretácico superior-Paleoceno de las cuencas antepaís Austral-Malvinas en porción más interna faja plegada y corrida extremo oriental los Andes fueguinos.En bahía Thetis se reconocen tres Formaciones: 1) Bahía Thetis, fangolitas oscuras, tobas, turbiditas arenosas conglomerados resedimentados, con ammonites foraminíferos Campaniano tardío-?Maastrichtiano inferior; 2) Policarpo, arenosas, tobáceas, bioturbadas ammonites, dinoquistes...
We report the discovery of first vertebrate from Paleogene Tierra del Fuego (Isla Grande), Argentina, in southernmost South America. The specimen consists parts an associated pelvic girdle and limb that are identified as belonging to penguin stem clade (Aves: Pansphenisciformes). specimen, exposure Leticia Formation (late middle Eocene), is earliest known (pansphenisciform) It more than 20 million years older previously recorded American penguins (from late Oligocene–early Miocene) and,...
Constraints on the magnitude of strike-slip displacement along Fagnano Transform System, Tierra del Fuego, Argentina. New fi eld data, specially discovery contact between Upper Cretaceous-Paleocene rock units in a previously unexplored area southeast allowed us to estimate amount accommodated by System (FTS). This stratigraphic is exposed both north and south FTS it deformed NW-SE compressive regional structure that forms part Fuegian thrust-fold belt, called Cerro Piramide-Cerro Malvinera...
Two species of the heteromorph ammonite genus Diplomoceras Hyatt are described from Upper Cretaceous James Ross–Seymour Islands area, Antarctica. The late Campanian–early Maastrichtian D. lambi Spath has a relatively high rib density, whereas maximum n. sp. lower density and is known only uppermost Lopez de Bertodano Formation on Seymour Island. Both attain an exceptionally large size with body chamber attaining length in excess one meter. structure shell wall characterized by thickening...