La diversité des basaltes de Patagonie à la latitude du point triple du Chili (46°-47° lat. S): Données complémentaires et implications sur les conditions de la subduction

Alexandre Corgne; René C. Maury; Yves Lagabrielle; Jacques Bourgois; Manuel Suarez; Joseph Cotten; Hervé Bellon

doi:10.1016/S1251-8050(01)01641-X

La diversité des basaltes de Patagonie à la latitude du point triple du Chili (46°-47° lat. S): Données complémentaires et implications sur les conditions de la subduction

Translated title of the contribution: The diversity of basalts from Patagonia at the latitude of the Chile triple junction (46°-47°S). Additional data and implications on the subduction processes

Alexandre Corgne, René C. Maury, Yves Lagabrielle, Jacques Bourgois, Manuel Suarez, Joseph Cotten, Hervé Bellon

Engineering School

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

The basalts exposed around the Lago General Carrera-Buenos Aires display a wide range of chemical compositions. These include: Cretaceous calc-alkaline magmas typical of the Andean arc, Eocene to Quaternary intraplate alkali magmas and Quaternary magmas, the geochemical signature of which shows similarities with those of Chile ridge MORB. Such diversity is related to the evolution of the subduction processes below Patagonia, starting with a 'normal' subduction regime, followed by collision-subduction of the active Farallon-Aluk and Chile ridges together with the development of 'asthenospheric windows' during the Eocene and since the Upper Miocene respectively.

Translated title of the contribution	The diversity of basalts from Patagonia at the latitude of the Chile triple junction (46°-47°S). Additional data and implications on the subduction processes
Original language	French
Pages (from-to)	363-371
Number of pages	9
Journal	Comptes Rendus de l'Academie de Sciences - Serie IIa: Sciences de la Terre et des Planetes
Volume	333
Issue number	7
DOIs	https://doi.org/10.1016/S1251-8050(01)01641-X
Publication status	Published - 15 Oct 2001

ASJC Scopus subject areas

Ecology, Evolution, Behavior and Systematics
Ocean Engineering

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Corgne, A., Maury, R. C., Lagabrielle, Y., Bourgois, J., Suarez, M., Cotten, J., & Bellon, H. (2001). La diversité des basaltes de Patagonie à la latitude du point triple du Chili (46°-47° lat. S): Données complémentaires et implications sur les conditions de la subduction. Comptes Rendus de l'Academie de Sciences - Serie IIa: Sciences de la Terre et des Planetes, 333(7), 363-371. https://doi.org/10.1016/S1251-8050(01)01641-X

Corgne, Alexandre ; Maury, René C. ; Lagabrielle, Yves et al. / La diversité des basaltes de Patagonie à la latitude du point triple du Chili (46°-47° lat. S) : Données complémentaires et implications sur les conditions de la subduction. In: Comptes Rendus de l'Academie de Sciences - Serie IIa: Sciences de la Terre et des Planetes. 2001 ; Vol. 333, No. 7. pp. 363-371.

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title = "La diversit{\'e} des basaltes de Patagonie {\`a} la latitude du point triple du Chili (46°-47° lat. S): Donn{\'e}es compl{\'e}mentaires et implications sur les conditions de la subduction",

abstract = "The basalts exposed around the Lago General Carrera-Buenos Aires display a wide range of chemical compositions. These include: Cretaceous calc-alkaline magmas typical of the Andean arc, Eocene to Quaternary intraplate alkali magmas and Quaternary magmas, the geochemical signature of which shows similarities with those of Chile ridge MORB. Such diversity is related to the evolution of the subduction processes below Patagonia, starting with a 'normal' subduction regime, followed by collision-subduction of the active Farallon-Aluk and Chile ridges together with the development of 'asthenospheric windows' during the Eocene and since the Upper Miocene respectively.",

keywords = "Asthenospheric window, Basalt, Geochemistry, Mantle, Patagonia, Ridge subduction",

author = "Alexandre Corgne and Maury, {Ren{\'e} C.} and Yves Lagabrielle and Jacques Bourgois and Manuel Suarez and Joseph Cotten and Herv{\'e} Bellon",

year = "2001",

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Corgne, A, Maury, RC, Lagabrielle, Y, Bourgois, J, Suarez, M, Cotten, J & Bellon, H 2001, 'La diversité des basaltes de Patagonie à la latitude du point triple du Chili (46°-47° lat. S): Données complémentaires et implications sur les conditions de la subduction', Comptes Rendus de l'Academie de Sciences - Serie IIa: Sciences de la Terre et des Planetes, vol. 333, no. 7, pp. 363-371. https://doi.org/10.1016/S1251-8050(01)01641-X

La diversité des basaltes de Patagonie à la latitude du point triple du Chili (46°-47° lat. S): Données complémentaires et implications sur les conditions de la subduction. / Corgne, Alexandre; Maury, René C.; Lagabrielle, Yves et al.
In: Comptes Rendus de l'Academie de Sciences - Serie IIa: Sciences de la Terre et des Planetes, Vol. 333, No. 7, 15.10.2001, p. 363-371.

Research output: Contribution to journal › Article › peer-review

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T1 - La diversité des basaltes de Patagonie à la latitude du point triple du Chili (46°-47° lat. S)

T2 - Données complémentaires et implications sur les conditions de la subduction

AU - Corgne, Alexandre

AU - Maury, René C.

AU - Lagabrielle, Yves

AU - Bourgois, Jacques

AU - Suarez, Manuel

AU - Cotten, Joseph

AU - Bellon, Hervé

PY - 2001/10/15

Y1 - 2001/10/15

N2 - The basalts exposed around the Lago General Carrera-Buenos Aires display a wide range of chemical compositions. These include: Cretaceous calc-alkaline magmas typical of the Andean arc, Eocene to Quaternary intraplate alkali magmas and Quaternary magmas, the geochemical signature of which shows similarities with those of Chile ridge MORB. Such diversity is related to the evolution of the subduction processes below Patagonia, starting with a 'normal' subduction regime, followed by collision-subduction of the active Farallon-Aluk and Chile ridges together with the development of 'asthenospheric windows' during the Eocene and since the Upper Miocene respectively.

AB - The basalts exposed around the Lago General Carrera-Buenos Aires display a wide range of chemical compositions. These include: Cretaceous calc-alkaline magmas typical of the Andean arc, Eocene to Quaternary intraplate alkali magmas and Quaternary magmas, the geochemical signature of which shows similarities with those of Chile ridge MORB. Such diversity is related to the evolution of the subduction processes below Patagonia, starting with a 'normal' subduction regime, followed by collision-subduction of the active Farallon-Aluk and Chile ridges together with the development of 'asthenospheric windows' during the Eocene and since the Upper Miocene respectively.

KW - Asthenospheric window

KW - Basalt

KW - Geochemistry

KW - Mantle

KW - Patagonia

KW - Ridge subduction

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IS - 7

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Corgne A, Maury RC, Lagabrielle Y, Bourgois J, Suarez M, Cotten J et al. La diversité des basaltes de Patagonie à la latitude du point triple du Chili (46°-47° lat. S): Données complémentaires et implications sur les conditions de la subduction. Comptes Rendus de l'Academie de Sciences - Serie IIa: Sciences de la Terre et des Planetes. 2001 Oct 15;333(7):363-371. doi: 10.1016/S1251-8050(01)01641-X

La diversité des basaltes de Patagonie à la latitude du point triple du Chili (46°-47° lat. S): Données complémentaires et implications sur les conditions de la subduction

Abstract

ASJC Scopus subject areas

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