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Recolector de Ciencia Abierta, RECOLECTA
Article . 2002 . Peer-reviewed
License: CC BY NC ND
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Recolector de Ciencia Abierta, RECOLECTA
Article . 2002 . Peer-reviewed
License: CC BY NC ND
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Minería y Geología
Article . 2001
Data sources: DOAJ
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El yacimiento volcanogénico de Cu-Zn-Pb (Au+Ag) El Cobre: inclusiones fluidas

Authors: Cazañas, Xiomara; Melgarejo Draper, Joan Carles; Alfonso Abella, María Pura;

El yacimiento volcanogénico de Cu-Zn-Pb (Au+Ag) El Cobre: inclusiones fluidas

Abstract

El depósito El Cobre se localiza al NO de Santiago de Cuba y encaja en la Secuencia Media del Grupo El Cobre, en el arco del Paleógeno. Se estudiaron inclusiones fluidas primarias y pseudosecundarias en cristales de cuarzo, anhidrita, esfarelita y calcita, correspondientes a los principales tipos de mineralización: stockwork silíceo, filones silíceos, filones anhídritico-epidóticos y mineralizaciones estratiforme de barita. Las inclusiones se clasificaron en bifásicas L-V, que presentan tamaño entre 5 y 40 micras, y el grado de relleno es de 0,7 a 0,8. Se obtuvieron temperaturas de fusión del hielo entre -1,1 y -6,7ºC, y les correspondieron salinidades entre 1,9 y 10,1 % en peso de NaCl eq., mientras que la temperatura de homogenización oscula entre 150 y 299ºC. durante los ensayos microtermométricos no se observó la formación de clatratos y las investigaciones mediante Raman no detectaron otros gases en la fase vapor, lo que indica un componente mayoritario de vapor de agua. La homogenización a líquido de las inclusiones con promedio entre 165 y 281ºC, y su grado de relleno uniforme, sugieren que no ocurrió le ebullición durante la deposición de estas mineralizaciones. Estos valores promedios de temperatura mencionados, así como los valores promedios de salinidad entre 2,3 y 5,7 % en peso de NaCl eq. están dentro del rago de salinidad y temperatura reportado en numerosos depósitos VMS, como los tipo Kuroko

Peer Reviewed

Country
Spain
Keywords

QE1-996.5, Mining engineering. Metallurgy, :Enginyeria civil::Geologia::Mineralogia [Àrees temàtiques de la UPC], yacimiento Cu-Zn-Pb (Au + Ag), TN1-997, Geology, Ore deposits-Cuba, Inclusiones fluidas, Volcanogénico, Jaciments minerals--Cuba, volcanogénico, Yacimiento Cu-Zn-Pb (Au + Ag), Mineralogy, Mineralogy - Cuba, Àrees temàtiques de la UPC::Enginyeria civil::Geologia::Mineralogia, Mineralogia - Cuba, inclusiones fluidas, Fluid inclusions, QE351-399.2

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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