{"id":16756,"date":"2023-02-23T17:11:09","date_gmt":"2023-02-23T16:11:09","guid":{"rendered":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/?p=16756"},"modified":"2023-02-23T17:11:09","modified_gmt":"2023-02-23T16:11:09","slug":"llum-entre-les-escletxes","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/general\/llum-entre-les-escletxes\/","title":{"rendered":"Llum entre les escletxes"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-16772 alignleft\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2023\/02\/munt-9-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2023\/02\/munt-9.jpg 300w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2023\/02\/munt-9-150x150.jpg 150w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>Els alumnes de 6\u00e8 C, el darrer grup de l\u2019<a href=\"https:\/\/agora.xtec.cat\/ceip-25desetembre-rubi\/\"><strong>Escola 25 de setembre<\/strong><\/a> de Rub\u00ed que ha visitat\u00a0<a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/ambits\/geologia\/les-escletxes-primaria\/\"><em>Les Escletxes del Papiol<\/em><\/a><em>, <\/em>han tancat la trilogia i, posant-se en la pell d&#8217;un ge\u00f2leg o ge\u00f2loga, han decidit investigar a fons aquest fenomen.<\/p>\n<p>Nom\u00e9s arribar han sabut diferenciar perfectament els dos materials que es podien distingir a simple vista: un de superior de tonalitat m\u00e9s clara i un d\u2019inferior m\u00e9s vermell\u00f3s. Per descobrir de quins materials es tractava, han fet un seguit de proves en ambdues roques, com ara comprovar la consist\u00e8ncia, la permeabilitat o veure si reaccionava amb \u00e0cid clorh\u00eddric. Han confirmat que el material superior eren roques calc\u00e0ries i l\u2019inferior argiles.<\/p>\n<p>A continuaci\u00f3 s\u2019han endinsat en 4 escletxes i han mesurat la direcci\u00f3, l\u2019amplada i la profunditat de cadascuna. Han travessat algunes escletxes realment estretes fent d&#8217;espele\u00f2legs. S&#8217;ho han passat d&#8217;all\u00f2 m\u00e9s b\u00e9!<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright  wp-image-16757\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2023\/02\/1-10.jpg\" alt=\"\" width=\"548\" height=\"307\" \/>Amb totes les dades han pogut deduir com s&#8217;havien format Les Escletxes: les calc\u00e0ries es degraden a causa de l&#8217;aigua de pluja, lleugerament \u00e0cida, aquest efecte durant milions d\u2019anys hauria provocat que les esquerdes de les calc\u00e0ries s&#8217;anessin fent m\u00e9s grans i profundes fins permetre a l&#8217;aigua arribar a les argiles inferiors. Quan les argiles entren en contacte amb l&#8217;aigua esdevenen pastoses i degut al seu pendent provoquen que les calc\u00e0ries llisquin vessant avall fins a formar les Escletxes que veiem avui dia.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Els alumnes de 6\u00e8 C, el darrer grup de l\u2019Escola 25 de setembre de Rub\u00ed que ha visitat\u00a0Les Escletxes del Papiol, han tancat la trilogia i, posant-se en la pell d&#8217;un ge\u00f2leg o ge\u00f2loga, han decidit investigar a fons aquest fenomen. Nom\u00e9s arribar han sabut diferenciar perfectament els dos materials que es podien distingir a [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":16758,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"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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