{"id":385,"date":"2026-01-24T18:48:00","date_gmt":"2026-01-24T17:48:00","guid":{"rendered":"https:\/\/www.google-sky.es\/blog\/?p=385"},"modified":"2026-03-09T18:17:25","modified_gmt":"2026-03-09T17:17:25","slug":"tierra-capas-internas","status":"publish","type":"post","link":"https:\/\/www.google-sky.es\/blog\/tierra-capas-internas\/","title":{"rendered":"Capas internas de la Tierra: Corteza, manto y n\u00facleo explicados"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u00bfCu\u00e1les son las capas de la Tierra?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nuestro planeta no es una roca s\u00f3lida, sino que est\u00e1 formado por diferentes <strong>capas de la Tierra<\/strong> con caracter\u00edsticas \u00fanicas. Desde la corteza donde caminamos hasta el n\u00facleo ardiente a miles de kil\u00f3metros de profundidad, cada nivel juega un papel vital. En esta gu\u00eda actualizada de 2026, exploramos la estructura interna de nuestro mundo: <strong>corteza, manto, n\u00facleo externo y n\u00facleo interno<\/strong>, revelando los secretos que ocultan bajo nuestros pies.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Capa Terrestre<\/strong><\/td><td><strong>Espesor Aproximado<\/strong><\/td><td><strong>Composici\u00f3n Principal<\/strong><\/td><\/tr><\/thead><tbody><tr><td><strong>Corteza<\/strong><\/td><td>5 &#8211; 70 km<\/td><td>Silicatos, Ox\u00edgeno, Aluminio<\/td><\/tr><tr><td><strong>Manto<\/strong><\/td><td>2.900 km<\/td><td>Magnesio, Hierro, Silicio<\/td><\/tr><tr><td><strong>N\u00facleo Externo<\/strong><\/td><td>2.200 km<\/td><td>Hierro y N\u00edquel (L\u00edquido)<\/td><\/tr><tr><td><strong>N\u00facleo Interno<\/strong><\/td><td>1.250 km<\/td><td>Hierro y N\u00edquel (S\u00f3lido)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83e\uddf1 La Corteza Terrestre: La piel de nuestro planeta.<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La <strong>corteza terrestre<\/strong> es la capa m\u00e1s externa y delgada. Su grosor var\u00eda entre <strong>5 km (bajo los oc\u00e9anos)<\/strong> y <strong>70 km (en las zonas continentales m\u00e1s gruesas)<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Caracter\u00edsticas:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Compuesta principalmente por rocas \u00edgneas, metam\u00f3rficas y sedimentarias.<\/li>\n\n\n\n<li>Se divide en corteza <strong>continental<\/strong> y <strong>oce\u00e1nica<\/strong>.<\/li>\n\n\n\n<li>Es la base de todos los ecosistemas terrestres.<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><em><strong>\ud83d\udca1<\/strong><\/em> <em><strong>\u00bfSab\u00edas que&#8230;?<\/strong> La corteza representa menos del 1% del volumen total de la Tierra.<\/em><\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd25 El Manto: Donde nace el magma.<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Bajo la corteza se encuentra el <strong>manto<\/strong>, una capa que se extiende hasta 2.900 km de profundidad. Aunque est\u00e1 hecho de roca s\u00f3lida, puede fluir lentamente en escalas de tiempo geol\u00f3gico.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Subdivisiones:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Manto superior<\/strong>: Incluye la astenosfera, donde se producen movimientos de convecci\u00f3n.<\/li>\n\n\n\n<li><strong>Manto inferior<\/strong>: M\u00e1s denso y r\u00edgido debido a la presi\u00f3n.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Importancia:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Responsable del <strong>movimiento de placas tect\u00f3nicas<\/strong>.<\/li>\n\n\n\n<li>Participa en la formaci\u00f3n de monta\u00f1as, terremotos y volcanes.<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><em><strong><em><strong>\ud83d\udca1<\/strong><\/em> <em><strong>\u00bfSab\u00edas que&#8230;?<\/strong> <\/em><\/strong> La capa m\u00e1s externa y r\u00edgida es la <strong>litosfera<\/strong>. Gracias a las corrientes de convecci\u00f3n del manto, las <strong>placas tect\u00f3nicas<\/strong> se mueven constantemente, dando forma a los continentes y provocando los terremotos que conocemos.<\/em><\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83c\udf0a N\u00facleo Externo: El Generador del Campo Magn\u00e9tico<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El <strong>n\u00facleo externo<\/strong> se encuentra entre los 2.900 y 5.150 km de profundidad. A diferencia del manto, aqu\u00ed encontramos <strong>metal l\u00edquido<\/strong>, principalmente hierro y n\u00edquel.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Propiedades:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Estado <strong>l\u00edquido<\/strong> debido a las altas temperaturas (~4.000\u20136.000\u202f\u00b0C).<\/li>\n\n\n\n<li>Su movimiento genera el <strong>campo magn\u00e9tico terrestre<\/strong>, que se extiende miles de kil\u00f3metros al espacio y es fundamental para protegernos de la radiaci\u00f3n solar.<\/li>\n\n\n\n<li>El campo magn\u00e9tico act\u00faa como un <strong>escudo contra el viento solar<\/strong>, una corriente de part\u00edculas cargadas emitidas por el Sol.<\/li>\n\n\n\n<li>Sin este escudo, la atm\u00f3sfera terrestre podr\u00eda erosionarse, como ocurri\u00f3 en <strong>Marte<\/strong>, un planeta sin n\u00facleo activo ni campo magn\u00e9tico global.<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><em><strong><strong>\ud83d\udca1<\/strong> <strong>\u00bfSab\u00edas que&#8230;?<\/strong> <\/strong> El movimiento del hierro l\u00edquido en el n\u00facleo externo crea un \u00abefecto dinamo\u00bb. Este es el responsable de generar el <strong>campo magn\u00e9tico terrestre<\/strong>, el escudo invisible que nos protege de la radiaci\u00f3n solar y permite la vida.<\/em><\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd29 N\u00facleo Interno: El Coraz\u00f3n S\u00f3lido de Hierro<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El <strong>n\u00facleo interno<\/strong> comienza a unos 5.150 km de profundidad y se extiende hasta el centro de la Tierra (~6.371 km).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Caracter\u00edsticas:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Compuesto principalmente por <strong>hierro s\u00f3lido<\/strong>, a pesar de las alt\u00edsimas temperaturas.<\/li>\n\n\n\n<li>Su solidez se debe a la <strong>presi\u00f3n extrema<\/strong> que impide que el hierro se funda.<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><em><strong>\u00bfSab\u00edas que&#8230;?<\/strong> El n\u00facleo interno de la Tierra est\u00e1 a unos <strong>6.000\u00b0C<\/strong>, una temperatura similar a la de la superficie del Sol. A pesar de ese calor extremo, es s\u00f3lido debido a la inmensa presi\u00f3n que soporta.<\/em><\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83e\uddea \u00bfC\u00f3mo Sabemos Todo Esto Sin Perforar?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nunca hemos perforado m\u00e1s all\u00e1 de unos <strong>12 km<\/strong> (Pozo Kola, Rusia). Entonces, \u00bfc\u00f3mo conocemos las capas internas de la Tierra?<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Ondas S\u00edsmicas<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Los <strong>terremotos<\/strong> generan ondas que se propagan por el interior del planeta.<\/li>\n\n\n\n<li>Estas ondas cambian de velocidad o se desv\u00edan seg\u00fan el material que atraviesan.<\/li>\n\n\n\n<li>As\u00ed, los cient\u00edficos han identificado los l\u00edmites y propiedades de las capas.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2. Campo Magn\u00e9tico<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Variaciones en el <strong>magnetismo terrestre<\/strong> nos dan pistas sobre la existencia del n\u00facleo externo l\u00edquido.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3. Experimentos de Laboratorio<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Simulaciones a alta presi\u00f3n y temperatura permiten estudiar c\u00f3mo se comportan los materiales a grandes profundidades.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\ude80 Una Perspectiva C\u00f3smica<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Desde una mirada astron\u00f3mica, el <strong>interior de <a href=\"https:\/\/www.google-sky.es\/blog\/index.php\/2025\/04\/09\/planeta-tierra\/\">nuestro planeta<\/a><\/strong> no es solo un conjunto de capas geol\u00f3gicas, sino un sistema din\u00e1mico que hace posible la vida al protegernos de amenazas extraterrestres.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">El estudio del <strong>campo magn\u00e9tico terrestre<\/strong> es tambi\u00e9n una herramienta importante en la exploraci\u00f3n planetaria: cuando buscamos mundos habitables fuera del sistema solar, <strong>la presencia de un n\u00facleo activo y un campo magn\u00e9tico<\/strong> son indicadores clave de habitabilidad.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83e\udded Conclusi\u00f3n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El interior de la Tierra sigue siendo un mundo inexplorado, pero la ciencia ha desarrollado herramientas poderosas para comprenderlo. Gracias a las ondas s\u00edsmicas, el magnetismo y modelos geof\u00edsicos, hoy conocemos bastante sobre las capas internas de la tierra, desde la corteza hasta el n\u00facleo interno.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Entender estas capas no solo es fascinante, sino clave para predecir terremotos, estudiar volcanes y entender la evoluci\u00f3n del planeta.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00bfCu\u00e1les son las capas de la Tierra? Nuestro planeta no es una roca s\u00f3lida, sino que est\u00e1 formado por diferentes capas de la Tierra con&hellip;<\/p>\n","protected":false},"author":1,"featured_media":387,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","footnotes":""},"categories":[40],"tags":[204,13],"class_list":["post-385","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-geologia-terrestre","tag-teorias-conceptos","tag-tierra"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Capas de la Tierra: Estructura, Corteza, Manto y N\u00facleo - Google Sky<\/title>\n<meta name=\"description\" content=\"\u00bfSabes qu\u00e9 hay bajo nuestros pies? 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