Depositional setting of the southern arms of Lago Argentino (southern Patagonia)

• Published in: Journal of Maps
• Main Authors: Lozano, Jorge Gabriel, Donda, Federica, Bran, Donaldo Mauricio, Lodolo, Emanuele, Baradello, Luca, Romeo, Roberto, Vilas, Juan Francisco A., Grossi, Maurizio, Tassone, Alejandro Alberto
• Format: Article in Journal/Newspaper
• Language: English
• Published: Journal Maps
• Subjects: BRAZO RICO; BRAZO SUR; CONTOUR MAPS; HIGH-RESOLUTION SEISMIC PROFILES; LAGO ARGENTINO; SUBAQUEOUS MORAINES; https://purl.org/becyt/ford/1.5; https://purl.org/becyt/ford/1; Argentina; Argentino; Moreno; Patagonia; Ice cap
• Online Access: http://hdl.handle.net/11336/144150

Lago Argentino hosts a series of calving glaciers originating from the Southern Patagonian Icefield, the largest temperate ice cap of the southern hemisphere. Brazo Rico and Brazo Sur are two basins located in the southern part of Lago Argentino, where a series of high-resolution seismic profiles have allowed reconstruction of its depositional setting and sedimentary architecture, and to produce the following maps: top of the acoustic basement, top of the glacial sequence, and thickness of the glacio-lacustrine deposits. Data reveal the role of basement highs in the complex dynamic behavior of the two main glaciers, Perito Moreno and Frías glaciers, which fluctuated along Brazo Rico and Brazo Sur since the end of the Last Glacial Maximum. Their advances and retreats are testified by the presence of several moraine fronts buried beneath a generally undisturbed, glacio-lacustrine and lacustrine sequence, which records the depositional history of the southern arms of Lago Argentino. Fil: Lozano, Jorge Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; Argentina Fil: Donda, Federica. Istituto Nazionale di Oceanografia e di Geofisica Sperimentale; Italia Fil: Bran, Donaldo Mauricio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; Argentina Fil: Lodolo, Emanuele. Istituto Nazionale di Oceanografia e di Geofisica Sperimentale; Italia Fil: Baradello, Luca. Istituto Nazionale di Oceanografia e di Geofisica Sperimentale; Italia ...