{"id":24215,"date":"2025-11-12T09:17:17","date_gmt":"2025-11-12T08:17:17","guid":{"rendered":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/?p=24215"},"modified":"2025-11-12T09:19:51","modified_gmt":"2025-11-12T08:19:51","slug":"els-grafiters-i-grafiteres-i-els-team-rockers-investiguen-les-escletxes","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/general\/els-grafiters-i-grafiteres-i-els-team-rockers-investiguen-les-escletxes\/","title":{"rendered":"Els grafiters i grafiteres i els team rockers investiguen les escletxes"},"content":{"rendered":"

Avui dimarts dia 11 de novembre fa fresqueta i visitem les escletxes del Papiol<\/a> amb els nois i les noies de 6\u00e8 de prim\u00e0ria de l’escola Miquel Mart\u00ed i Pol<\/a> de Sant Feliu de Llobregat.<\/p>\n

S\u2019han dividit en grups de treball i han explorat les Escletxes com aut\u00e8ntics ge\u00f2legs i ge\u00f2logues per caracteritzar-ne les dues roques que trobem a la zona. Per poder observar les\u00a0seves propietats han agafat les seves motxilles amb el material necessari (martell de ge\u00f2leg, cinta m\u00e8trica, br\u00faixola, ulleres de protecci\u00f3 i \u00e0cid clorh\u00eddric dilu\u00eft), s\u2019han posat el casc de ge\u00f2leg i s\u2019han apropat a la zona d\u2019estudi. Proves d\u2019\u00e0cid, de textures dels materials, consist\u00e8ncia, permeabilitat, per concloure cient\u00edficament que s\u00f3n\u00a0argiles i calc\u00e0ries<\/strong>. Quins professionals! A m\u00e9s, gr\u00e0cies a l\u2019observaci\u00f3 d\u2019alguns f\u00f2ssils marins (ostres i altres bivalves, coralls, etc.), han pogut deduir que les roques calc\u00e0ries tenen un origen mar\u00ed. Sembla doncs que el nivell del mar no sempre ha sigut el mateix que veiem ara!<\/p>\n

L\u2019alumnat tamb\u00e9 ha travessat les Escletxes i les ha investigat \u201ca fons\u201d! Direcci\u00f3, amplada i profunditat de 4 escletxes per acabar amb una ruta espeleol\u00f2gica incre\u00efble.<\/p>\n

Per concloure, han posat en com\u00fa les dades de tots els grups i han acabat deduint com s\u2019han format Les Escletxes. Com que les roques calc\u00e0ries es degraden a causa de l\u2019aigua de la\u00a0pluja, lleugerament \u00e0cida, aquest efecte al llarg de milions d\u2019anys faria que les esquerdes de les roques calc\u00e0ries s\u2019anessin eixamplant i aprofundint fins permetre a l\u2019aigua arribar a les argiles inferiors. Quan plou, les argiles es tornen fangoses i es comporten de manera pl\u00e0stica. Juntament amb el pendent del vessant, aquest fet hauria provocat que els blocs de roca calc\u00e0ria llisquessin vessant avall fins a formar el fenomen geol\u00f2gic que veiem avui dia.<\/p>\n

Finalment, han jugat al joc de les sis difer\u00e8ncies per comprendre millor la problem\u00e0tica de les cases del Papiol, que sovint tamb\u00e9 es troben afectades per esquerdes a les fa\u00e7anes. Han descobert diverses solucions per evitar l\u2019aparici\u00f3 d\u2019aquestes i han arribat a la conclusi\u00f3 que no tots els terrenys s\u00f3n aptes per construir-hi o, si m\u00e9s no, caldr\u00e0 adaptar el tipus de construcci\u00f3 segons la zona. Aix\u00ed doncs, han vist que la comprensi\u00f3 dels processos geol\u00f2gics \u00e9s tamb\u00e9 de gran import\u00e0ncia social, sobretot a l\u2019hora de minimitzar riscos i planificar l\u2019\u00fas del territori correctament.<\/p>\n

Moltes gr\u00e0cies per la feina feta! Quins bons ge\u00f2legs i ge\u00f2logues! Fins aviat!<\/p>\n

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    Avui dimarts dia 11 de novembre fa fresqueta i visitem les escletxes del Papiol amb els nois i les noies de 6\u00e8 de prim\u00e0ria de l’escola Miquel Mart\u00ed i Pol de Sant Feliu de Llobregat. S\u2019han dividit en grups de treball i han explorat les Escletxes com aut\u00e8ntics ge\u00f2legs i ge\u00f2logues per caracteritzar-ne les dues […]<\/p>\n","protected":false},"author":3,"featured_media":24227,"comment_status":"open","ping_status":"open","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":"default","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":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","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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