{"id":144545,"date":"1993-01-01T00:00:00","date_gmt":"1993-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/nanofosiles-calcareos-y-eventos-del-cretacico-medio-superior-de-la-region-vasco-cantabrica\/"},"modified":"1993-01-01T00:00:00","modified_gmt":"1993-01-01T00:00:00","slug":"nanofosiles-calcareos-y-eventos-del-cretacico-medio-superior-de-la-region-vasco-cantabrica","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/nanofosiles-calcareos-y-eventos-del-cretacico-medio-superior-de-la-region-vasco-cantabrica\/","title":{"rendered":"Nanofosiles calcareos y eventos del cretacico medio-superior de la region vasco-cantabrica."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Amalia Gorostidi Diego <\/strong><\/h2>\n<p>Esta memoria de tesis constituye un estudio de los nanofosiles calcareos del cenomaniense superior, turoniense, maastrichtiense y daniense basal de la region vascocantabrica, mediante la utilizacion de tecnicas cuantitativas aplicadas a seis secciones estratigraficas, tres de edad maastrichtiense-daniense y otras tres cenomaniense-turoniense, una de ellas localizada en el sureste de inglaterra (seccion de shakespeare cliff), se ha realizado un estudio bioestratigrafico. El transito cenomaniense-turoniense se caracteriza por presentar los ultimos registros de cinco taxones: corollithion kennedyi, axopodorhabdus albianus, lithraphidites acutus, microstaurus chiastius y rhagodicus asper (este ultimo es diacronico) y los primeros registros de otros tantos:  quadrum gartneri, quadrum intermedium, nannoconus multicadus, eprolithus octopetalus y eprolithus ectapetalus; e primer de los cuales es buen indice para la identificacion del limite cenomaniense-turoniense.  el mastrichtiense vascocantabrico presenta una asociacion caracteristica del tethys habiendose identificado los siguientes bioventos: ultimo registro de reinhardtiles levis y primeros de lithrapidites quadratus, micula murus y micula prinsii. El daniense basal puede ser reconocido en la region vascocantabrica gracias a los acmes de thoracosphaera spp. Y braarudosphaera bigelowii, el primero de los cuales se produce justo en el limite y el otro unos 20 centimetros mas arriba. Ademas de estos dos taxones varias especies mas eclosionan en el daniense basal entre ellas una de las primeras especies que aparecen en el paleoceno, neobiscutum parvulum, cuya presencia es exclusiva de latitudes bajas donde es considerada un indice bioestratigrafico. Tambien se ha reconocido cruciplacolithus primus cuyo primer registro marca la base de la zona que lleva su nombre.  por otra parte, el estudio de la composicion de la asociacion nos ha permitido determinar cambios en la temperatura de l<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Nanofosiles calcareos y eventos del cretacico medio-superior de la region vasco-cantabrica.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Nanofosiles calcareos y eventos del cretacico medio-superior de la region vasco-cantabrica. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Amalia Gorostidi Diego <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Pa\u00eds vasco\/euskal herriko unibertsitatea<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1993<\/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> Lamolda Palacios Marcos Antonio<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Jos\u00e9 Mar\u00eda Gonzalez Donoso <\/li>\n<li>Ricard Martinez Ribas (vocal)<\/li>\n<li> Von Salis Perch-nielsen Katharina (vocal)<\/li>\n<li>Jos\u00e9 Abel Flores Villarejo (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Amalia Gorostidi Diego Esta memoria de tesis constituye un estudio de los nanofosiles calcareos del cenomaniense superior, [&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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