Geology and geophysics of the Kranck pluton (Lago Fagnano, Tierra del Fuego, Argentina)

The Lago Fagnano is located in the central part of the Tierra del Fuego Island; it represents a tectonic basin along the strike of the transforming Magallanes-Fagnano fault which cuts across in a roughly E-W orientation the whole Island. Along the northern lake shoreline, an aeromagnetic anomaly (+7...

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Autores principales: Peroni, Javier Ignacio, Tassone, Alejandro Alberto, Lippai, Horacio Francisco, Vilas, Juan Francisco A.
Publicado: 2008
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_20358008_v1_n1_p132_Peroni
http://hdl.handle.net/20.500.12110/paper_20358008_v1_n1_p132_Peroni
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling paper:paper_20358008_v1_n1_p132_Peroni2023-06-08T16:32:58Z Geology and geophysics of the Kranck pluton (Lago Fagnano, Tierra del Fuego, Argentina) Peroni, Javier Ignacio Tassone, Alejandro Alberto Lippai, Horacio Francisco Vilas, Juan Francisco A. The Lago Fagnano is located in the central part of the Tierra del Fuego Island; it represents a tectonic basin along the strike of the transforming Magallanes-Fagnano fault which cuts across in a roughly E-W orientation the whole Island. Along the northern lake shoreline, an aeromagnetic anomaly (+75 to 30 nT) of around 35 km 2 indicates the presence of an igneous body. Although the magmatic intrusion, called Kranck Pluton, is poorly exposed, the restricted outcrops display a large lithologic variation (from basic to acid terms) within the alkaline field. The pluton is hosted in the dark schists and sedimentary rocks pertaining to the Lower Cretaceous Beauvoir Fm. which were deformed by the Upper Cretaceous Andean compressive tectonics. Brittle structures related to Magallanes- Fagnano transform fault activity affect both the pluton and its host rocks. Fil:Peroni, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Tassone, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Lippai, H. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Vilas, J.F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2008 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_20358008_v1_n1_p132_Peroni http://hdl.handle.net/20.500.12110/paper_20358008_v1_n1_p132_Peroni
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description The Lago Fagnano is located in the central part of the Tierra del Fuego Island; it represents a tectonic basin along the strike of the transforming Magallanes-Fagnano fault which cuts across in a roughly E-W orientation the whole Island. Along the northern lake shoreline, an aeromagnetic anomaly (+75 to 30 nT) of around 35 km 2 indicates the presence of an igneous body. Although the magmatic intrusion, called Kranck Pluton, is poorly exposed, the restricted outcrops display a large lithologic variation (from basic to acid terms) within the alkaline field. The pluton is hosted in the dark schists and sedimentary rocks pertaining to the Lower Cretaceous Beauvoir Fm. which were deformed by the Upper Cretaceous Andean compressive tectonics. Brittle structures related to Magallanes- Fagnano transform fault activity affect both the pluton and its host rocks.
author Peroni, Javier Ignacio
Tassone, Alejandro Alberto
Lippai, Horacio Francisco
Vilas, Juan Francisco A.
spellingShingle Peroni, Javier Ignacio
Tassone, Alejandro Alberto
Lippai, Horacio Francisco
Vilas, Juan Francisco A.
Geology and geophysics of the Kranck pluton (Lago Fagnano, Tierra del Fuego, Argentina)
author_facet Peroni, Javier Ignacio
Tassone, Alejandro Alberto
Lippai, Horacio Francisco
Vilas, Juan Francisco A.
author_sort Peroni, Javier Ignacio
title Geology and geophysics of the Kranck pluton (Lago Fagnano, Tierra del Fuego, Argentina)
title_short Geology and geophysics of the Kranck pluton (Lago Fagnano, Tierra del Fuego, Argentina)
title_full Geology and geophysics of the Kranck pluton (Lago Fagnano, Tierra del Fuego, Argentina)
title_fullStr Geology and geophysics of the Kranck pluton (Lago Fagnano, Tierra del Fuego, Argentina)
title_full_unstemmed Geology and geophysics of the Kranck pluton (Lago Fagnano, Tierra del Fuego, Argentina)
title_sort geology and geophysics of the kranck pluton (lago fagnano, tierra del fuego, argentina)
publishDate 2008
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_20358008_v1_n1_p132_Peroni
http://hdl.handle.net/20.500.12110/paper_20358008_v1_n1_p132_Peroni
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AT lippaihoraciofrancisco geologyandgeophysicsofthekranckplutonlagofagnanotierradelfuegoargentina
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