Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/50088
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dc.contributor.authorMangas, J.en_US
dc.contributor.authorArribas, A.en_US
dc.date.accessioned2018-11-24T13:10:54Z-
dc.date.available2018-11-24T13:10:54Z-
dc.date.issued1987en_US
dc.identifier.issn0009-2541en_US
dc.identifier.urihttp://hdl.handle.net/10553/50088-
dc.description.abstractMost of the Spanish Sn deposits are closely associated with intrusions of syn- and late kinematic Hercynian granites. A fluid inclusion study using microthermometric, Raman and crushing test analyses has been made of quartz, cassiterite, scheelite and calcite from greisens and quartz veins in the following types of deposits: (a) disseminated cassiterite in apogranites, Golpejas and Penouta; (b) stanniferous pegmatites, La Fregeneda; and (c) quartz veins and stockworks, with cassiterite, Teba, cassiterite and wolframite, San Finx, and cassiterite and scheelite, La Parrilla. The homogenization temperatures and physico-chemical characteristics of the inclusions indicate three stages of fluid circulation:. The first stage is characterized by the trapping of complex CO2-aqueous (H2ONaClCO2CH4N2H2S), complex CO2 (CO2CH4N2H2S) and low-salinity aqueous (H2ONaCl) inclusions (< 10 eq.wt.% NaCl) at temperatures ranging between 500° and 250°C and pressures below 2000 bar. The second stage is represented by low-salinity aqueous inclusions (< 10 eq.wt.% NaCl), trapped at homogenization temperatures between 300° and 60°C and pressures of ∼200 bar. The third stage is characterized by mixed-salt aqueous inclusions (H2ONaClKClCaCl2MgCl2), trapped at homogenization temperatures between 170° and 60°C and low pressures. The results obtained by this study indicate that, in general, with descending temperature, the chemical evolution of the mineralizing fluids is such that the fluid inclusions are characterized by a progressive increase in the total density and a progressive decrease in the salinity and the CO2 and volatile contents. However, for the fluids trapped at lower temperatures (∼100°C), the salinity is much higher, which is presumably due to the sudden increase in Ca2+, Mg2+, Na+ and K+ salt contents.en_US
dc.languageengen_US
dc.publisher0009-2541-
dc.relation.ispartofChemical geologyen_US
dc.sourceChemical Geology [ISSN 0009-2541], v. 61, p. 193-208en_US
dc.subject2506 Geologíaen_US
dc.titleFluid inclusion study in different types of tin deposits associated with the Hercynian granites of western Spainen_US
dc.typeinfo:eu-repo/semantics/articleen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/0009-2541(87)90039-8en_US
dc.identifier.scopus0023104205-
dc.contributor.authorscopusid7003264328-
dc.contributor.authorscopusid7003494163-
dc.description.lastpage208-
dc.description.firstpage193-
dc.relation.volume61-
dc.investigacionCienciasen_US
dc.type2Artículoen_US
dc.utils.revisionen_US
dc.identifier.ulpgces
dc.description.scieSCIE
item.grantfulltextnone-
item.fulltextSin texto completo-
crisitem.author.deptGIR IOCAG: Geología Aplicada y Regional-
crisitem.author.deptIU de Oceanografía y Cambio Global-
crisitem.author.deptDepartamento de Física-
crisitem.author.orcid0000-0002-3286-743X-
crisitem.author.parentorgIU de Oceanografía y Cambio Global-
crisitem.author.fullNameMangas Viñuela, José-
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