Petrology of volcanic sequence in the Arroyo Ranquil Huao: Meseta de Somún Curá.. extra-andean patagonia

In the northern side of the extra andean Patagonia, in portions of Rio Negro and Chubut provinces, extensive basaltic lava flows plateaux type are exposed. On the southern side of the plateaux, in the Ranquil Huau stream valley, close to Telsen locality, a large succesion of volcanic and vocaniclast...

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Autores principales: Remesal, Marcela Beatriz, Méndez, María José, Gagliardo, Mariana Ligia
Publicado: 2002
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Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v57_n3_p260_Remesal
http://hdl.handle.net/20.500.12110/paper_00044822_v57_n3_p260_Remesal
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spelling paper:paper_00044822_v57_n3_p260_Remesal2023-06-08T14:25:36Z Petrology of volcanic sequence in the Arroyo Ranquil Huao: Meseta de Somún Curá.. extra-andean patagonia Remesal, Marcela Beatriz Méndez, María José Gagliardo, Mariana Ligia Basalts Extrandean Patagonia Petrology Somún Curá basalt geochemistry lava flow partial melting petrography volcaniclastic deposit volcanism Argentina Arroyo Ranquil Huao Patagonia In the northern side of the extra andean Patagonia, in portions of Rio Negro and Chubut provinces, extensive basaltic lava flows plateaux type are exposed. On the southern side of the plateaux, in the Ranquil Huau stream valley, close to Telsen locality, a large succesion of volcanic and vocaniclastic rocks is exposed. The basaltic lava flows of Somuncura Formation and the Basalto La Mesada (Quin̄elaf Superunit) and the volcanisclastic deposits of the Sarmiento Group are exposed in the area. The different groups of basalts are identified by petrographyc and geochemical distinctive features. In the upper level of Somún Curá Formation a basic pyroclastic flow is interbedded. The basic rocks exposed in the medium level of the valley have distinctive characteristics and they are named as Basanitas Ranquil Huao. The analized units have geochemical parameters consistent with the evolution of melt showing that were produced by differents degree of partial melting. Fil:Remesal, M.B. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Méndez, M.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Gagliardo, M.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2002 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v57_n3_p260_Remesal http://hdl.handle.net/20.500.12110/paper_00044822_v57_n3_p260_Remesal
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Basalts
Extrandean Patagonia
Petrology
Somún Curá
basalt
geochemistry
lava flow
partial melting
petrography
volcaniclastic deposit
volcanism
Argentina
Arroyo Ranquil Huao
Patagonia
spellingShingle Basalts
Extrandean Patagonia
Petrology
Somún Curá
basalt
geochemistry
lava flow
partial melting
petrography
volcaniclastic deposit
volcanism
Argentina
Arroyo Ranquil Huao
Patagonia
Remesal, Marcela Beatriz
Méndez, María José
Gagliardo, Mariana Ligia
Petrology of volcanic sequence in the Arroyo Ranquil Huao: Meseta de Somún Curá.. extra-andean patagonia
topic_facet Basalts
Extrandean Patagonia
Petrology
Somún Curá
basalt
geochemistry
lava flow
partial melting
petrography
volcaniclastic deposit
volcanism
Argentina
Arroyo Ranquil Huao
Patagonia
description In the northern side of the extra andean Patagonia, in portions of Rio Negro and Chubut provinces, extensive basaltic lava flows plateaux type are exposed. On the southern side of the plateaux, in the Ranquil Huau stream valley, close to Telsen locality, a large succesion of volcanic and vocaniclastic rocks is exposed. The basaltic lava flows of Somuncura Formation and the Basalto La Mesada (Quin̄elaf Superunit) and the volcanisclastic deposits of the Sarmiento Group are exposed in the area. The different groups of basalts are identified by petrographyc and geochemical distinctive features. In the upper level of Somún Curá Formation a basic pyroclastic flow is interbedded. The basic rocks exposed in the medium level of the valley have distinctive characteristics and they are named as Basanitas Ranquil Huao. The analized units have geochemical parameters consistent with the evolution of melt showing that were produced by differents degree of partial melting.
author Remesal, Marcela Beatriz
Méndez, María José
Gagliardo, Mariana Ligia
author_facet Remesal, Marcela Beatriz
Méndez, María José
Gagliardo, Mariana Ligia
author_sort Remesal, Marcela Beatriz
title Petrology of volcanic sequence in the Arroyo Ranquil Huao: Meseta de Somún Curá.. extra-andean patagonia
title_short Petrology of volcanic sequence in the Arroyo Ranquil Huao: Meseta de Somún Curá.. extra-andean patagonia
title_full Petrology of volcanic sequence in the Arroyo Ranquil Huao: Meseta de Somún Curá.. extra-andean patagonia
title_fullStr Petrology of volcanic sequence in the Arroyo Ranquil Huao: Meseta de Somún Curá.. extra-andean patagonia
title_full_unstemmed Petrology of volcanic sequence in the Arroyo Ranquil Huao: Meseta de Somún Curá.. extra-andean patagonia
title_sort petrology of volcanic sequence in the arroyo ranquil huao: meseta de somún curá.. extra-andean patagonia
publishDate 2002
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v57_n3_p260_Remesal
http://hdl.handle.net/20.500.12110/paper_00044822_v57_n3_p260_Remesal
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