{"id":33109,"date":"2018-03-09T09:30:05","date_gmt":"2018-03-09T09:30:05","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/petrologia-del-macizo-granitico-de-la-maladeta-huesca-lerida-estructura-mineralogia-petrologia-y-petrogenesis\/"},"modified":"2018-03-09T09:30:05","modified_gmt":"2018-03-09T09:30:05","slug":"petrologia-del-macizo-granitico-de-la-maladeta-huesca-lerida-estructura-mineralogia-petrologia-y-petrogenesis","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-tierra-y-del-espacio\/petrologia-del-macizo-granitico-de-la-maladeta-huesca-lerida-estructura-mineralogia-petrologia-y-petrogenesis\/","title":{"rendered":"Petrolog\u00eda del macizo granitico de la maladeta (huesca-lerida): estructura, mineralogia petrolog\u00eda y petrogenesis."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Enrique Arranz Yague <\/strong><\/h2>\n<p>El complejo plut\u00f3nico de la maladeta, (cpm), situado en el sector central de la zona axial pirenaica, se encuentra dividido por una zona de fractura d\u00factil en dos unidades-unidad de aneto y unidad de bo\u00ed- que representan niveles estructurales distintos en el cpm. El estudio petrol\u00f3gico, geoqu\u00edmico y mineral\u00f3gico realizado permite definir una evoluci\u00f3n muy similar para ambas unides del cpm, constituida por tres pulsos intrusivos principales que se emplazan seg\u00fan la secuencia:  1) una etapa de facies b\u00e1sicas, con desarrollo volum\u00e9trico reducido 2) una etapa de granodioritas o granodioritas-monzogranitos 3) un pulso de sienogranitos con cordierita y moscovita.  el conjunto de los datos obtenidos en este estudio, permiten proponer un modelo de g\u00e9nesis y emplazamiento para el cpm, en cuatro etapas:  t1: en condiciones compresivas tard\u00edas o levemente distensivas (sin-post fase principal herc\u00ednica), se produce la intrusi\u00f3n en niveles inferiores de la corteza de un fundido generado en el manto superior, caracterizado por sus relaciones isot\u00f3picas de ox\u00edgeno y de 87 sr\/86sr inicial bajas. Posiblemente se produce una peque\u00f1a asimilaci\u00f3n de materiales de la corteza inferior.  t2: en condiciones ya distensivas (post-fase principal), se genera el fundido granodior\u00edtico- monzogran\u00edtico en la corteza inferior, interaccionando con el fundido b\u00e1sico del cual incorpora fragmentos (enclaves) y n\u00facleos minerales. El tiempo t2 es, comparativamente, mucho mayor que t1 posibilitando el equilibrio con una restita, posiblemente de plagioclasa. La corteza superior (infraestructura), experimenta un gradiente t\u00e9rmico muy intenso comenzando, probablemente, los procesos de fusi\u00f3n parcial.  t3: las condiciones francamente distensivas facilitan la movilizaci\u00f3n de los fundidos generados en las etapas t1 y t2 hacia niveles superiores de la corteza. Se generaliza la fusi\u00f3n parcial en los niveles metapel\u00edticos adyacentes de la infrae<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Petrolog\u00eda del macizo granitico de la maladeta (huesca-lerida): estructura, mineralogia petrolog\u00eda y petrogenesis.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Petrolog\u00eda del macizo granitico de la maladeta (huesca-lerida): estructura, mineralogia petrolog\u00eda y petrogenesis. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Enrique Arranz Yague <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Zaragoza<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 14\/10\/1997<\/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>Marceliano Lago San Jos\u00e9<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Luis guillermo Corretg\u00e9 casta\u00f1\u00f3n <\/li>\n<li>Jos\u00e9 Lopez ruiz (vocal)<\/li>\n<li>Juan  ignacio Gil ibarguchi (vocal)<\/li>\n<li>ramon Vaquer navarro (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Enrique Arranz Yague El complejo plut\u00f3nico de la maladeta, (cpm), situado en el sector central de la 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