{"id":74673,"date":"2018-03-09T23:19:45","date_gmt":"2018-03-09T23:19:45","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/microfracturacion-y-alteracion-hidrotermal-asociada-en-un-macizo-grana%c2%adtico-el-pluton-de-la-cabrera-s-c-e\/"},"modified":"2018-03-09T23:19:45","modified_gmt":"2018-03-09T23:19:45","slug":"microfracturacion-y-alteracion-hidrotermal-asociada-en-un-macizo-grana%c2%adtico-el-pluton-de-la-cabrera-s-c-e","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-tierra-y-del-espacio\/microfracturacion-y-alteracion-hidrotermal-asociada-en-un-macizo-grana%c2%adtico-el-pluton-de-la-cabrera-s-c-e\/","title":{"rendered":"Microfracturaci\u00f3n y alteraci\u00f3n hidrotermal asociada en un macizo gran\u00edtico: el plut\u00f3n de la cabrera (s.c.e.)"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Ruth Gonz\u00e1lez Laguna <\/strong><\/h2>\n<p>En el macizo gran\u00edtico de la cabrera se haya representada buena parte dela actividad hidrotermal que ha tenido lugar en la sierra de guadarrama. Mediante el estudio textural de minerales accesorios al sem las alteraciones se pueden dividir en 3 tipos: tipo i: afecta d\u00e9bilmente a la mayor parte del granito (alteraci\u00f3n regional d\u00e9bil) y se hace especialmente intensa en los halos de las cavidades miarol\u00edticas y en las bandas dealteraci\u00f3n con sin fracturas  visibles en su interior. Las alteraciones caracter\u00edsticas son las siguientes: biotita clorita + ep (tr) y\/o  ep s.S.; Ilmenita &#8211; titanita + anatasa; monacita y xenotima &#8211; ep tr + apatito +- torita; circ\u00f3n &#8211; titanita; allanita &#8211; titanita &#8211; ep tr + ep s.S. Tipo ii; afecta a la zona central de las bandas de alteraci\u00f3n con fracturaci\u00f3n compleja. Los minrales hidrotermales caracter\u00edsticos son los siguientes; monacita (i) &#8211; monacita (ii) + xenotima (ii) + torita y tipo iii: se localizan en la parte m\u00e1s interna de las bandas con fracturaci\u00f3n compleja y en halos de cavidades miarol\u00edticas. La mineralog\u00eda caracter\u00edsticas es la siguiente: rutilo, pirita, hematites (goetita), calcita, cabronato con tr, cloria fibrosoradiaba.  en los planos de inlcuisones fluidas secundarios (pifs) del macizo gran\u00edtico de la cabrera, se han podido reconocer dos tipos generales de fluidos por su composici\u00f3n qu\u00edmica:  fluido a, pertenece al sistema h2o-nacl-(kci). La salinidad, es de baja a moderada (0.16+5.3% p.Eq nacl) y un amplio rango de thom: entre 125 y 343\u00c2\u00bac.  fluido b, pertenece al sistema h2o-nacl-(kcl)-cacl2. La salinidad es de moderada a alta (de 9 a 28% eq.Nacl) y las thom son inferiores (de 62 a 194\u00c2\u00bac). Se han definido cinco episodios de microfracturaci\u00f3n, de los cuales cuatro se han reconocido en los pifs con fluido tipo a:  1) m1 (thmodal =260-280\u00c2\u00bac; familias n-s)  2) m2 (thmodal =210-240\u00c2\u00bac; familias n-s y e-o)  3) m3 (thmodal =160-180\u00c2\u00bac; familia n-s)  4) sin modas claras<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Microfracturaci\u00f3n y alteraci\u00f3n hidrotermal asociada en un macizo gran\u00edtico: el plut\u00f3n de la cabrera (s.c.e.)<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Microfracturaci\u00f3n y alteraci\u00f3n hidrotermal asociada en un macizo gran\u00edtico: el plut\u00f3n de la cabrera (s.c.e.) <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Ruth Gonz\u00e1lez Laguna <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Complutense de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 17\/06\/2005<\/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>C\u00e9sar Casquet Mart\u00edn<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: elena Vindel catena <\/li>\n<li>Jos\u00e9 Manuel Gonz\u00e1lez casado (vocal)<\/li>\n<li>tomas Martin crespo (vocal)<\/li>\n<li>julio Saavedra alonso (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Ruth Gonz\u00e1lez Laguna En el macizo gran\u00edtico de la cabrera se haya representada buena parte dela actividad [&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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