Discovery ofpeperites on Marambio Island, Antarctica, with considerations of their emplacement

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The finding of peperite breccias on Marambio Island allows to confirm the existence of at least two different pulses in the instrusion of basaltic dykes within the James Ross Island Volcanic Group. Two important bodies of peperites were recognized at Filo Negro and Geoantar hill. They were formed by...

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Autores principales: Caselli, A.T., Massaferro, G.L.
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: 1997
Materias:
basalt
breccia
dike
Argentina
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00044822_v52_n3_p400_Caselli
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paperaa:paper_00044822_v52_n3_p400_Caselli
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spelling paperaa:paper_00044822_v52_n3_p400_Caselli2023-06-12T16:39:52Z Discovery ofpeperites on Marambio Island, Antarctica, with considerations of their emplacement Rev. Asoc. Geol. Argent. 1997;52(3):400-404 Caselli, A.T. Massaferro, G.L. basalt breccia dike Argentina The finding of peperite breccias on Marambio Island allows to confirm the existence of at least two different pulses in the instrusion of basaltic dykes within the James Ross Island Volcanic Group. Two important bodies of peperites were recognized at Filo Negro and Geoantar hill. They were formed by the intrusion of basaltic dykes in the unconsolidated Paleogene sediments of Sobral Formation. The breccias are composed of vesicular glassy fragments, and volcanic and sedimentary lithic constituents in a sand matrix. The intrusions were probably emplaced at very shallow depth and are possibly related to a younger volcanic pulse, dated at 1.3 Ma. © 1997 Asociaciôn Geolôgica Argentina. Fil:Caselli, A.T. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Massaferro, G.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1997 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion application/pdf eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00044822_v52_n3_p400_Caselli
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language Inglés
orig_language_str_mv eng
topic basalt
breccia
dike
Argentina
spellingShingle basalt
breccia
dike
Argentina
Caselli, A.T.
Massaferro, G.L.
Discovery ofpeperites on Marambio Island, Antarctica, with considerations of their emplacement
topic_facet basalt
breccia
dike
Argentina
description The finding of peperite breccias on Marambio Island allows to confirm the existence of at least two different pulses in the instrusion of basaltic dykes within the James Ross Island Volcanic Group. Two important bodies of peperites were recognized at Filo Negro and Geoantar hill. They were formed by the intrusion of basaltic dykes in the unconsolidated Paleogene sediments of Sobral Formation. The breccias are composed of vesicular glassy fragments, and volcanic and sedimentary lithic constituents in a sand matrix. The intrusions were probably emplaced at very shallow depth and are possibly related to a younger volcanic pulse, dated at 1.3 Ma. © 1997 Asociaciôn Geolôgica Argentina.
format Artículo
Artículo
publishedVersion
author Caselli, A.T.
Massaferro, G.L.
author_facet Caselli, A.T.
Massaferro, G.L.
author_sort Caselli, A.T.
title Discovery ofpeperites on Marambio Island, Antarctica, with considerations of their emplacement
title_short Discovery ofpeperites on Marambio Island, Antarctica, with considerations of their emplacement
title_full Discovery ofpeperites on Marambio Island, Antarctica, with considerations of their emplacement
title_fullStr Discovery ofpeperites on Marambio Island, Antarctica, with considerations of their emplacement
title_full_unstemmed Discovery ofpeperites on Marambio Island, Antarctica, with considerations of their emplacement
title_sort discovery ofpeperites on marambio island, antarctica, with considerations of their emplacement
publishDate 1997
url http://hdl.handle.net/20.500.12110/paper_00044822_v52_n3_p400_Caselli
work_keys_str_mv AT caselliat discoveryofpeperitesonmarambioislandantarcticawithconsiderationsoftheiremplacement
AT massaferrogl discoveryofpeperitesonmarambioislandantarcticawithconsiderationsoftheiremplacement
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