{"id":18867,"date":"2023-12-13T10:16:45","date_gmt":"2023-12-13T09:16:45","guid":{"rendered":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/?p=18867"},"modified":"2023-12-13T10:16:45","modified_gmt":"2023-12-13T09:16:45","slug":"explorem-les-escletxes","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/general\/explorem-les-escletxes\/","title":{"rendered":"Explorem Les Escletxes"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-18874 alignleft\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2023\/12\/munt-3-300x300.jpg\" alt=\"\" width=\"431\" height=\"431\" srcset=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2023\/12\/munt-3.jpg 300w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2023\/12\/munt-3-150x150.jpg 150w\" sizes=\"auto, (max-width: 431px) 100vw, 431px\" \/>L&#8217;alumnat de 5\u00e8 i 6\u00e8 de l\u2019<a href=\"https:\/\/agora.xtec.cat\/escolamartipolsantfeliu\/\"><strong>Escola Miquel Mart\u00ed i Pol<\/strong><\/a> de Sant Feliu de Llobregat s&#8217;ha despla\u00e7at aquest dimarts 12 de novembre de 2023 per fer de ge\u00f2legs i ge\u00f2logues investigant les roques que es troben a <a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/ambits\/geologia\/les-escletxes-primaria\/\"><em>Les Escletxes del Papiol<\/em><\/a><em>.<\/em><\/p>\n<p>Per comen\u00e7ar han comentat diversos aspectes del relleu de la zona aix\u00ed com els diferents materials que es podien distingir a simple vista: un de superior de tonalitat m\u00e9s clara i un d\u2019inferior m\u00e9s vermell\u00f3s. Tamb\u00e9 han observat que la zona d&#8217;estudi est\u00e0 situada en un vessant. Seguidament s&#8217;han dividit en 6 grups de treball, s&#8217;han posat el casc de ge\u00f2leg i han agafat tot el material necessari per a la seva investigaci\u00f3: martell de ge\u00f2leg, cinta m\u00e8trica, br\u00faixola i \u00e0cid clorh\u00eddric dilu\u00eft. Amb tot preparat, han anat a estudiar els dos materials.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright  wp-image-18873\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2023\/12\/3-2-rotated.jpg\" alt=\"\" width=\"145\" height=\"259\" \/>Per descobrir de quins materials es tractava han fet tot un seguit de proves en ambdues roques: comprovar la seva consist\u00e8ncia, la resist\u00e8ncia, la plasticitat, la permeabilitat i 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=\" wp-image-18872 alignleft\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2023\/12\/2-3.jpg\" alt=\"\" width=\"423\" height=\"317\" srcset=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2023\/12\/2-3.jpg 300w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2023\/12\/2-3-200x150.jpg 200w\" sizes=\"auto, (max-width: 423px) 100vw, 423px\" \/>Amb totes les dades que han recollit durant el mat\u00ed han estat capa\u00e7os de deduir com s&#8217;havien format Les Escletxes: com les roques calc\u00e0ries es degraden a causa de l&#8217;aigua de la pluja, lleugerament \u00e0cida, aquest efecte durant milions d\u2019anys hauria provocat que les esquerdes de les roques calc\u00e0ries s&#8217;anessin fent m\u00e9s grans i profundes fins a permetre a l&#8217;aigua arribar a les argiles inferiors. El fet de que quan les argiles entren en contacte amb l&#8217;aigua esdevenen pastoses juntament amb el seu pendent ha provocat que les calc\u00e0ries llisquin vessant avall fins a formar les Escletxes que veiem avui dia.<\/p>\n<p>Han estat uns investigadors molt intr\u00e8pids i han treballat de valent!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>L&#8217;alumnat de 5\u00e8 i 6\u00e8 de l\u2019Escola Miquel Mart\u00ed i Pol de Sant Feliu de Llobregat s&#8217;ha despla\u00e7at aquest dimarts 12 de novembre de 2023 per fer de ge\u00f2legs i ge\u00f2logues investigant les roques que es troben a Les Escletxes del Papiol. Per comen\u00e7ar han comentat diversos aspectes del relleu de la zona aix\u00ed com [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":18871,"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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