{"id":27930,"date":"2018-03-09T09:20:24","date_gmt":"2018-03-09T09:20:24","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/petrologa%c2%ada-de-los-rellenos-calcicos-hidrotermales-de-las-cavidades-miarola%c2%adticas-del-pluton-de-la-cabrera-madrid\/"},"modified":"2018-03-09T09:20:24","modified_gmt":"2018-03-09T09:20:24","slug":"petrologa%c2%ada-de-los-rellenos-calcicos-hidrotermales-de-las-cavidades-miarola%c2%adticas-del-pluton-de-la-cabrera-madrid","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/petrologa%c2%ada-de-los-rellenos-calcicos-hidrotermales-de-las-cavidades-miarola%c2%adticas-del-pluton-de-la-cabrera-madrid\/","title":{"rendered":"Petrolog\u00eda de los rellenos c\u00e1lcicos hidrotermales de las cavidades miarol\u00edticas del plut\u00f3n de la cabrera (Madrid)"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Rafael Pablo Lozano Fern\u00e1ndez <\/strong><\/h2>\n<p>Gran parte de los procesos hidrotermales que han afectado a la sierra de guadarrama durante los \u00faltimos 250 ma, han quedado registrados en forma de rellenos minerales, principalmente c\u00e1lcicos, en las cavidades miarol\u00edticas, algunas gigantes, del plut\u00f3n gran\u00edtico de la cabrera (provincia de Madrid). los minerales principales de estos rellenos son: epidota, prehnita, laumontita, estilbita y calcita, y en menor medida, moscovita, microclina y apofilita, que constituyen otra variedad de rellenos de qu\u00edmica pot\u00e1sica. Todo ello hace de las cavidades miarol\u00edticas, un caso excepcional, a nivel mundial, paral a reconstrucci\u00f3n de la historia hidrotermal en un macizo gran\u00edtico fracturado.  los fluidos hidrotermales fueron siempre acuosos. Los m\u00e1s antiguos tuvieron temperaturas m\u00e1ximas moderadamente altas (mayor 360\u00c2\u00bac), poca salinidad y poco cacl2 en disoluci\u00f3n (se forman ferroactinolita y epidota). En una segunda etapa circularon fluidos algo m\u00e1s fr\u00edos (230-290\u00c2\u00bac), de mayor salinidad, con cantidad apreciable de cacl2 (se forman, prehnita y cuarzo). Otro fluido m\u00e1s reciente era m\u00e1s fr\u00edo (150\u00c2\u00bac), rico en cacl2 y m\u00e1s salino (se forma cuarzo con una primera generaci\u00f3n de calcita (calcita 0)). Un nuevo fluido de menor temperatura (120\u00c2\u00bac), tambi\u00e9n c\u00e1lcico pero menos salino dio lugar a la formaci\u00f3n de una segunda generaci\u00f3n de calcita (calcita i). Una nueva generaci\u00f3n de calcita (calcita ii) se form\u00f3 a partir de otro fluido, a unos 50\u00c2\u00bac, de baja salinidad, pobre en cacl2. Finalmente, la calcita iii se forma en condiciones superficiales, a partir de un fluido isot\u00f3picamente similar al agua de escorrent\u00eda actual (dic).  los resultados de is\u00f3topos estables (c, o e h), sugieren un origen mete\u00f3rico para los fluidos hidrotermales que generan los sucesivos rellenos de las cavidades, con interacci\u00f3n variable con el granito. El c de las calcitas proviene, probablemente, de la descomposici\u00f3n de diferentes coberteras vegetales. L<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Petrolog\u00eda de los rellenos c\u00e1lcicos hidrotermales de las cavidades miarol\u00edticas del plut\u00f3n de la cabrera (Madrid)<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Petrolog\u00eda de los rellenos c\u00e1lcicos hidrotermales de las cavidades miarol\u00edticas del plut\u00f3n de la cabrera (Madrid) <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Rafael Pablo Lozano Fern\u00e1ndez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Complutense de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 19\/12\/2003<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Carmen Galindo Francisco<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: magdalena Rodas gonz\u00e1lez <\/li>\n<li>f\u00e9lix Bellido mulas (vocal)<\/li>\n<li>Antonio Delgado huertas (vocal)<\/li>\n<li>Carlos Rossi nieto (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Rafael Pablo Lozano Fern\u00e1ndez Gran parte de los procesos hidrotermales que han afectado a la sierra de [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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