{"id":14218,"date":"2022-02-18T17:44:09","date_gmt":"2022-02-18T16:44:09","guid":{"rendered":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/?p=14218"},"modified":"2022-02-21T15:35:10","modified_gmt":"2022-02-21T14:35:10","slug":"estudiants-de-ctma-estudien-riscos-naturals-al-papiol","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/general\/estudiants-de-ctma-estudien-riscos-naturals-al-papiol\/","title":{"rendered":"Estudiants de CTMA indaguen sobre riscos naturals al Papiol"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-14220 alignleft\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2022\/02\/esc_marina-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2022\/02\/esc_marina.jpg 300w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2022\/02\/esc_marina-150x150.jpg 150w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>El passat 18 de febrer, els estudiants de 1r i 2n de batxillerat de <strong>ci\u00e8ncies de la terra i del medi ambient<\/strong> de l&#8217;<a href=\"https:\/\/agora.xtec.cat\/iesmarina\/\">Institut Marina<\/a> de La Llagosta <strong>surten al camp<\/strong> per aprendre sobre <a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/ambits\/geologia\/\">processos geol\u00f2gics de vessant i riscos naturals<\/a> al Papiol. L&#8217;alumnat de CTMA, amb els seus docents, acompanyats pel <a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/\">Camp d&#8217;aprenentatge Can Santoi<\/a>, dediquen un mat\u00ed a explorar les Escletxes: <a href=\"https:\/\/mediambient.gencat.cat\/web\/.content\/home\/ambits_dactuacio\/patrimoni_natural\/sistemes_dinformacio\/inventari_despais_dinteres_geologic\/consulta_de_les_fitxes_descriptives_dels_eig\/documentos\/338_descrip.pdf\">Geozona 338<\/a>. Aquest espai ha estat l&#8217;objecte de reconstrucci\u00f3 hist\u00f2rica i d&#8217;interpretaci\u00f3.<\/p>\n<p>Els estudiants, gaudint d&#8217;un dia primaveral, han conegut les principals <strong>t\u00e8cniques de camp<\/strong>, com l&#8217;\u00fas del mapa topogr\u00e0fic, el mapa geol\u00f2gic, la localitzaci\u00f3 per GPS i la identificaci\u00f3 de materials. D&#8217;inici han reconegut les <strong>pissarres<\/strong> metam\u00f2rfiques del basament <strong>Paleozoic<\/strong> de Collserola, seguit dels <strong>materials sedimentaris<\/strong> del <strong>Mioc\u00e8<\/strong> a on s&#8217;ubiquen les Escletxes.<\/p>\n<p>Despr\u00e9s han visitat algunes escletxes per elaborar-ne les <strong>primeres hip\u00f2tesis<\/strong>. En veure-les, han pensat en un possible origen fluvial, o b\u00e9 producte de terratr\u00e8mols. A partir d&#8217;aquestes hip\u00f2tesis, han dedicat especial atenci\u00f3 a <strong>identifica<img loading=\"lazy\" decoding=\"async\" class=\"alignright size-medium wp-image-14224\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2022\/02\/imarina_p-249x300.jpg\" alt=\"\" width=\"249\" height=\"300\" srcset=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2022\/02\/imarina_p-249x300.jpg 249w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2022\/02\/imarina_p.jpg 300w\" sizes=\"auto, (max-width: 249px) 100vw, 249px\" \/>r les propietats<\/strong> dels estrats sedimentaris inferiors, les argiles. Han comprovat la plasticitat en pres\u00e8ncia d&#8217;aigua. Els estrats superiors, de naturalesa calc\u00e0ria, amb f\u00f2ssils marins com els ostreids, gaster\u00f2podes i coralls tenen un aspecte molt diferent. Estan formats per calc\u00e0ries fossil\u00edferes, que a escala micro s\u00f3n impermeables, per\u00f2 a escala meso i macro estan plens de forats i d&#8217;esquerdes verticals. <strong>Aquestes esquerdes s\u00ed que poden conduir les aig\u00fces pluvials cap als estrats inferiors argilosos<\/strong>.<\/p>\n<p>Amb tot el que han vist, s&#8217;ha valorat conjuntament una <strong>nova interpretaci\u00f3 del fenomen<\/strong>. La hist\u00f2ria m\u00e9s factible \u00e9s que els estrats calcaris, m\u00e9s r\u00edgids i amb diverses fissures, hagin anat impregnant-se d&#8217;aigua fins arribar als estrats inferiors argilosos. Com que tot el conjunt es troba inclinat, el m\u00e9s probable \u00e9s que <strong>per gravetat els estrats calcaris s&#8217;hagin esberlat i lliscat, produint aquest conjunt de grans esquerdes<\/strong> conegudes com les Escletxes. En acabar i de cam\u00ed cap el nucli urb\u00e0 hem pogut veure algunes <strong>afectacions als edificis<\/strong> per lliscament del substrat argil\u00f3s.<\/p>\n<p>Estudiants i docents hem compartit els interessos de cadasc\u00fa, la majoria <strong>motivats per carreres de l&#8217;\u00e0mbit sanitari<\/strong>. Tamb\u00e9 hem comentat la relaci\u00f3 dels estudis que volen fer amb els <strong>ODS<\/strong>. Coincidim que aquest tipus d&#8217;activitats complementen molt b\u00e9 el que s&#8217;apr\u00e8n a l&#8217;institut.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>El passat 18 de febrer, els estudiants de 1r i 2n de batxillerat de ci\u00e8ncies de la terra i del medi ambient de l&#8217;Institut Marina de La Llagosta surten al camp per aprendre sobre processos geol\u00f2gics de vessant i riscos naturals al Papiol. L&#8217;alumnat de CTMA, amb els seus docents, acompanyats pel Camp d&#8217;aprenentatge Can [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":14220,"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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