Artículo
Leal, P.R. "Fluid inclusions and stable isotopes in non-ore minerals of the manganese ore deposits in the north of the Córdoba province " (2002) Revista de la Asociacion Geologica Argentina. 57(3):251-259
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Abstract:
In this paper the non-ore minerals of the southern sector of this deposit are studied. Microthermometric analysis on calcite, barite and fluorite show fluid salinities of 2.7 and 4% wt eq. NaCl, and temperatures below 100°C. Isotopes of 13C, 18O and 34S allow to determine a meteoric source for the fluids associated to their precipitation. The δ 13C values obtained in calcite are considered the result of a fluid in equilibrium with atmospheric CO 2 plus the addition of carbon due to dissolution of organic compounds. On the other hand, the δ 34S values of barites can be explained by another fluid with H 2S contents resulting from the dissolution of sulfides from the wall-rock. Finally, the presence of two different fluids is postulated here. An upward fluid was responsible for the barite precipitation where the H 2S was oxidized to SO 4. This fluid could form fluorite and silica varieties as its temperature decreases. The existence of a downward fluid explains calcite generation as the descending fluid is heated.
Registro:
| Documento: | Artículo |
| Título: | Fluid inclusions and stable isotopes in non-ore minerals of the manganese ore deposits in the north of the Córdoba province |
| Autor: | Leal, P.R. |
| Filiación: | Depto. de Ciencias Geológicas, Fac. de Ciencias Exactas/Naturales, Universidad de Buenos Aires, Buenos Aires 1428EHA, Argentina |
| Palabras clave: | Fluid inclusion; Manganese; Sierras Pampeanas; Stable isotopes; barite; calcite; fluid inclusion; fluorite; hydrothermal fluid; manganese; ore deposit; stable isotope; Argentina |
| Año: | 2002 |
| Volumen: | 57 |
| Número: | 3 |
| Página de inicio: | 251 |
| Página de fin: | 259 |
| Título revista: | Revista de la Asociacion Geologica Argentina |
| Título revista abreviado: | Rev. Asoc. Geol. Argent. |
| ISSN: | 00044822 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v57_n3_p251_Leal |
Referencias:
- Arcidiácono, E.C., Génesis de yacimientos de óxidos de manganeso de Ojo de Agua, Santiago del Estero, República Argentina (1973) Revista de la Asociación Geológica Argentina, 28 (2), pp. 165-194
- Beder, R., Los yacimientos de minerales de manganeso en el none de Córdoba y sur de Santiago del Estero (1931) Anales Del Museo Nacional de Historia Natural, 36, pp. 431-504
- Brodtkorb, M.K., de y Etcheverry, R.O., Edad K/Ar de la mineralización de manganeso de Aguada del Monte, provincia de Córdoba (2000) Revista, de la Asociación Geológica Argentina, 55 (3), pp. 280-283
- Brodtkorb, M.K., de Koukharsky, M., Ametrano, S., Brodtkorb, A., Los distritos manganesiferos de la Sierras Pampeanas Orientales (1999) XIV Congreso Geológico Argentina, Actas II, pp. 310-311. , Salta
- Bodnar, R.J., Revised equation and table for determining the freezing point depression of H 2O-NaCl solution (1993) Geochimica et Cosmochimica Acta, 57, pp. 683-684
- Correa, M.J., (2000) Informe de Avance, , Beca de Perfeccionamiento CONICET. Inédito, 16 p
- Faure, G., (1986) Principles of Isotope Geology, , 2 a edición. John Wiley and Sons, New York, 588 p
- Hoefs, J., (1997) Stable Isotope Geochemistry, , 4 a edición. Springer-Verlag. Berlín, 201 p
- Holland, H.D., Malinin, S.D., The solubility and occurrence of non-ore minerals (1979) Geochemistry of Hydrothermal Ore Deposits, pp. 461-508. , Barnes H. ed., New York
- Kim, S.T., O'Neil, J.R., Equilibrium and nonequilibrium oxygen isotope effects in synthetic carbonates (1997) Geochimica et Cosmochimica Acta, 61, pp. 3461-3475
- Lattanzi, P., Fluids in ore deposits (1994) Fluid Inclusions in Minerals: Methods and Applications, pp. 297-307. , De Vivo B. and Frezzotti M.L. ed
- Leal, P.R., Correa, M.J., Mas, G., Estudio preliminar de inclusiones fluidas en los minerales que componen la ganga de los yacimientos de manganeso del norte de Córdoba y sur de Santiago del Estero (2000) 6 Congreso de Mineralogia Y Metalogenia, 6, pp. 238-244. , Publicación La Plata
- Lucero, H., (1969) Descripción Geológica de Las Hojas 16h. Pozo Grande Y 17h. Chuña Huasi. Provincias De Córdoba Y Santiago Del Estero, , Dirección Nacional de Minería y Geología, Boletín 107. Buenos Aires
- Miró, R.C., (2000) Hoja Geológica 1:250000, Villa Ojo de Agua, Santiago Del Estero Y Córdoba, , SEGEMAR
- Ohmoto, H., Rye, R.O., Isotopes of sulfur and carbon (1979) Geochemistry of Hydrothermal Ore Deposits, pp. 509-567. , Barnes H. ed., New York
- Ramé, L.G., Lira, R., Gay, H.D., La mineralización de manganeso del norte de Córdoba (1999) 14 Congreso Geológico Argentino, Actas II, pp. 306-309. , Salta
- Ramos, V.A., Late Proterozoic-Early Paleozoic of South America, a collisional history (1988) Episodes, 11 (3), pp. 168-174
- Rayces, E., Los yacimientos de manganeso de Chuña Huasi (1947) Revista de la Asociación Geológica Argentina, 2 (3), pp. 239-256
- Roedder, E., Fluid inclusions as samples of ore fluids (1979) Geochemistry of Hydrothermal Ore Deposits, pp. 684-737. , Barnes H. ed., New York
- Roy, S., Mineralogy of the different genetic types of manganese deposits (1968) Economic Geology, 63, pp. 760-786
- White, N.C., Hedenquist, J.W., Epithermal environments and styles of mineralization: Variations and their causes, and guidelines for exploration (1990) Journal of Geochemical Exploration, 36, pp. 445-474
- Zheng, Y.F., Hoefs, J., Carbon and oxygen isotopic covariations in hydrothermal calcites. Theoretical modeling on mixing processes and application to Pb-Zn deposits in Harz Mountains, Germany (1993) Mineralium Deposita, 28, pp. 79-89
Citas:
---------- APA ----------
(2002) . Fluid inclusions and stable isotopes in non-ore minerals of the manganese ore deposits in the north of the Córdoba province . Revista de la Asociacion Geologica Argentina, 57(3), 251-259.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v57_n3_p251_Leal [ ]
---------- CHICAGO ----------
Leal, P.R. "Fluid inclusions and stable isotopes in non-ore minerals of the manganese ore deposits in the north of the Córdoba province " . Revista de la Asociacion Geologica Argentina 57, no. 3 (2002) : 251-259.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v57_n3_p251_Leal [ ]
---------- MLA ----------
Leal, P.R. "Fluid inclusions and stable isotopes in non-ore minerals of the manganese ore deposits in the north of the Córdoba province " . Revista de la Asociacion Geologica Argentina, vol. 57, no. 3, 2002, pp. 251-259.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v57_n3_p251_Leal [ ]
---------- VANCOUVER ----------
Leal, P.R. Fluid inclusions and stable isotopes in non-ore minerals of the manganese ore deposits in the north of the Córdoba province . Rev. Asoc. Geol. Argent. 2002;57(3):251-259.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v57_n3_p251_Leal [ ]
