{"id":11586,"date":"2020-03-02T10:12:37","date_gmt":"2020-03-02T09:12:37","guid":{"rendered":"http:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/?p=11586"},"modified":"2020-03-02T11:23:43","modified_gmt":"2020-03-02T10:23:43","slug":"descobrim-els-secrets-de-les-escletxes","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/general\/descobrim-els-secrets-de-les-escletxes\/","title":{"rendered":"Descobrim els secrets de les Escletxes"},"content":{"rendered":"<p>Els alumnes de Ci\u00e8ncies de la Terra de Batxillerat dels instituts<strong>\u00a0Fort Pius <\/strong><strong>i<\/strong><strong> Salvador Espriu <\/strong>de Barcelona \u00a0i l\u2019institut<strong> Marina <\/strong>de La Llagosta van visitar les Escletxes del Papiol el dia 28 de febrer per estudiar els <a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/ambits\/geologia\/processos-de-vessant-i-riscs-naturals\/\">processos de vessant i els riscos naturals<\/a>.<\/p>\n<p><a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2020\/03\/muntatge.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-11607 alignleft\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2020\/03\/muntatge.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2020\/03\/muntatge.jpg 300w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2020\/03\/muntatge-150x150.jpg 150w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>En primer lloc van plantejar-se com s\u2019havien originat les escletxes i van formular hip\u00f2tesis per explicar el proc\u00e9s de formaci\u00f3. Van situar-les geogr\u00e0ficament i van diferenciar entre el material superior i l\u2019inferior. A partir de l\u2019estudi de la resist\u00e8ncia i la consist\u00e8ncia d\u2019aquests o la reacci\u00f3 amb l\u2019\u00e0cid clorh\u00eddric van identificar els materials com calc\u00e0ries i argiles respectivament. Tamb\u00e9 les van representar en una columna estratigr\u00e0fica, situant-les sobre el s\u00f2col Paleozoic de pissarres.<a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2020\/03\/PHOTO-2020-02-28-14-50-44bis.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-11590 alignright\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2020\/03\/PHOTO-2020-02-28-14-50-44bis.jpg\" alt=\"\" width=\"207\" height=\"300\" \/><\/a><\/p>\n<p>Per l\u2019estudi m\u00e9s detallat van obtenir diverses dades com la direcci\u00f3, la inclinaci\u00f3, la profunditat i el despla\u00e7ament horitzontal i vertical\u00a0 de sis escletxes. Amb totes les dades recollides van poder elaborar\u00a0 un model te\u00f2ric sobre com s\u2019havien format, i \u00e9s que, degut a la lleugera acidesa de les pluges, les calc\u00e0ries reaccionen i s\u2019erosionen m\u00e9s f\u00e0cilment, produint-se esquerdes en aquestes. Aquestes esquerdes s\u2019han anat fent m\u00e9s profundes, permetent a l\u2019aigua infiltrar-se fins a les argiles. El comportament d\u00factil d&#8217;aquestes provoquen un lliscament de les calc\u00e0ries.<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2020\/03\/IMG_1181bis.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-11591 alignleft\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2020\/03\/IMG_1181bis.jpg\" alt=\"\" width=\"189\" height=\"300\" \/><\/a>D\u2019altra banda van observar alguns arbres amb una morfologia del tronc corbada i \u00a0van poder deduir un altre moviment de vessant: el de reptaci\u00f3 o <em>creep<\/em>.<\/p>\n<p>Finalment, van observar algunes esquerdes en les fa\u00e7anes de les cases del Papiol i van avaluar el risc d\u2019aquestes tenint en compte el valor dels bens exposats, la vulnerabilitat i la probabilitat de danys.<\/p>\n<p>Han gaudit d\u2019un dia molt maco i han apr\u00e8s molt sobre geologia i els riscos dels processos de vessant!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Els alumnes de Ci\u00e8ncies de la Terra de Batxillerat dels instituts\u00a0Fort Pius i Salvador Espriu de Barcelona \u00a0i l\u2019institut Marina de La Llagosta van visitar les Escletxes del Papiol el dia 28 de febrer per estudiar els processos de vessant i els riscos naturals. En primer lloc van plantejar-se com s\u2019havien originat les escletxes i [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":11588,"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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1,295,29],"tags":[],"class_list":["post-11586","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general","category-geologia","category-portada"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/11586","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/comments?post=11586"}],"version-history":[{"count":3,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/11586\/revisions"}],"predecessor-version":[{"id":11609,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/11586\/revisions\/11609"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/media\/11588"}],"wp:attachment":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/media?parent=11586"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/categories?post=11586"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/tags?post=11586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}