Abstract:
The Oro del Sur deposit is located in the southern part of the Precordillera of Mendoza Province, Argentina (32°30'S, 69°05'W) within the flat-slab subduction segment. It is a Cu-(Mo) porphyry type system with associated high sulfidation Au-(Cu) epithermal veins genetically linked to Miocene volcanic rocks which show geochemical characteristics (particularly low Y and low Yb values and high Sr/Y and La/Yb ratios) that indicate an adakite-like signature, and a Sr-Nd isotopic composition that suggests involvement of a depleted mantle source in their genesis. The age of this adakitic magmatism (∼19 Ma) suggests a change in the geochemical signature of the magmatism linked to the onset of flattening of the subduction zone. The adakite-like signature of the Miocene volcanism of the Oro del Sur ore deposit supports a genetic relationship between adakitic magmatism, mineralization and slab shallowing in this part of the Andes. © 2011 E. Schweizerbart'sche Verlagsbuchhandlung, Stuttgart, Germany.
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Documento: |
Artículo
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Título: | Adakite-like signature in volcanic rocks associated with the Oro del sur Au - (Cu) epithermal deposit, Southern Precordillera, Argentina |
Autor: | Carrasquera, S.I.; Rubinstein, N.A.; Fontignie, D. |
Filiación: | Instituto de Recursos Minerales (INREMI), FCNyM, Universidad Nacional de la Plata, 64 No 3, entre 119 y 120, (1900) La Plata, Argentina CONICET-Departamento de Geología, FCEN, Ciudad Universitaria, (1428) Ciudad Autónoma de Buenos Aires, Argentina Department of Mineralogy, University of Geneva, Switzerland
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Palabras clave: | Adakite-like signature; Argentina; Epithermal; High sulfidation; Miocene magmatism; Oro del Sur deposit; Precordillera |
Año: | 2011
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Volumen: | 261
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Número: | 3
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Página de inicio: | 309
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Página de fin: | 320
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DOI: |
http://dx.doi.org/10.1127/0077-7749/2011/0172 |
Título revista: | Neues Jahrbuch fur Geologie und Palaontologie - Abhandlungen
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Título revista abreviado: | Neues Jahrb. Geol. Palaontol. Abh.
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ISSN: | 00777749
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00777749_v261_n3_p309_Carrasquera |
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Citas:
---------- APA ----------
Carrasquera, S.I., Rubinstein, N.A. & Fontignie, D.
(2011)
. Adakite-like signature in volcanic rocks associated with the Oro del sur Au - (Cu) epithermal deposit, Southern Precordillera, Argentina. Neues Jahrbuch fur Geologie und Palaontologie - Abhandlungen, 261(3), 309-320.
http://dx.doi.org/10.1127/0077-7749/2011/0172---------- CHICAGO ----------
Carrasquera, S.I., Rubinstein, N.A., Fontignie, D.
"Adakite-like signature in volcanic rocks associated with the Oro del sur Au - (Cu) epithermal deposit, Southern Precordillera, Argentina"
. Neues Jahrbuch fur Geologie und Palaontologie - Abhandlungen 261, no. 3
(2011) : 309-320.
http://dx.doi.org/10.1127/0077-7749/2011/0172---------- MLA ----------
Carrasquera, S.I., Rubinstein, N.A., Fontignie, D.
"Adakite-like signature in volcanic rocks associated with the Oro del sur Au - (Cu) epithermal deposit, Southern Precordillera, Argentina"
. Neues Jahrbuch fur Geologie und Palaontologie - Abhandlungen, vol. 261, no. 3, 2011, pp. 309-320.
http://dx.doi.org/10.1127/0077-7749/2011/0172---------- VANCOUVER ----------
Carrasquera, S.I., Rubinstein, N.A., Fontignie, D. Adakite-like signature in volcanic rocks associated with the Oro del sur Au - (Cu) epithermal deposit, Southern Precordillera, Argentina. Neues Jahrb. Geol. Palaontol. Abh. 2011;261(3):309-320.
http://dx.doi.org/10.1127/0077-7749/2011/0172