{"id":14746,"date":"2022-04-22T18:43:42","date_gmt":"2022-04-22T16:43:42","guid":{"rendered":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/?p=14746"},"modified":"2022-04-22T18:43:42","modified_gmt":"2022-04-22T16:43:42","slug":"fem-un-viatge-en-el-temps-fins-el-triasic","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/general\/fem-un-viatge-en-el-temps-fins-el-triasic\/","title":{"rendered":"Fem un viatge en el temps fins el Tri\u00e0sic"},"content":{"rendered":"<p>Divendres 22 d&#8217;abril l&#8217;alumnat de1r i 2n de batxillerat de l\u2019optativa CTMA de l&#8217;<strong>Institut Joanot Martorell <\/strong>d&#8217;Esplugues de Llobregat ha vingut en transport p\u00fablic fins a Pallej\u00e0 per realitzar\u00a0 una sortida de geologia i estudiar diferents afloraments de <a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/ambits\/geologia\/itinerari-geologic-roques-sedimentaris-batxillera\/\" target=\"_blank\" rel=\"noopener noreferrer\">roques sedimentaries del Tri\u00e0sic<\/a>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-14750 alignleft\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2022\/04\/IMG_7947.jpg\" alt=\"\" width=\"206\" height=\"300\" \/>L&#8217;activitat est\u00e0 plantejada com un itinerari que consta de 3 parades en diferents afloraments. Amb el material de camp necessari han obtingut dades topogr\u00e0fiques com les coordenades UTM, l&#8217;altitud\u00a0 i tamb\u00e9 han calculat la pot\u00e8ncia dels afloraments fent servir diverses t\u00e8cniques matem\u00e0tiques. Tamb\u00e9 han posat en pr\u00e0ctica com calcular el cabussament dels estrats observats. A m\u00e9s, en cada parada han realitzat una s\u00e8rie de proves com identificaci\u00f3 d\u2019estructures sediment\u00e0ries, examen de la granulometria dels materials, comprovaci\u00f3 de la duresa del mineral predominant en la roca per identificar-la i tamb\u00e9\u00a0 prova de la reacci\u00f3 amb\u00a0 HCl per confirmar la pres\u00e8ncia de carbonat de calci.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-14751 alignright\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2022\/04\/IMG_7946.jpg\" alt=\"\" width=\"300\" height=\"193\" \/>Han confirmat que el primer aflorament correspon a conglomerat amb quarsita i el segon correspon a gres ric en quars. Aquestes dues<span style=\"font-family: inherit; font-size: 1em;\"> roques rogenques d&#8217;origen continental corresponen a ambients sedimentaris al\u00b7luvials. En l\u2019aflorament superior han identificat calc\u00e0ries i dolomies corresponents al segon estatge del Tri\u00e0sic<\/span>\u00a0<span style=\"font-family: inherit; font-size: 1em;\">que indiquen unes condicions de sedimentaci\u00f3 marines. D&#8217;aquesta manera han pogut confirmar la transgressi\u00f3 marina que va tenir lloc en aquella \u00e8poca.<br \/>\n<\/span><\/p>\n<p>Amb totes les dades recollides podran elaborar la columna estratigr\u00e0fica corresponent.<\/p>\n<p>En el cam\u00ed de retorn han inspeccionat un antic forn de cal\u00e7 abandonat.<\/p>\n<p>Han completat una feina magn\u00edfica aplicant t\u00e8cniques de camp relacionades amb la geologia.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Divendres 22 d&#8217;abril l&#8217;alumnat de1r i 2n de batxillerat de l\u2019optativa CTMA de l&#8217;Institut Joanot Martorell d&#8217;Esplugues de Llobregat ha vingut en transport p\u00fablic fins a Pallej\u00e0 per realitzar\u00a0 una sortida de geologia i estudiar diferents afloraments de roques sedimentaries del Tri\u00e0sic. L&#8217;activitat est\u00e0 plantejada com un itinerari que consta de 3 parades en diferents [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":14749,"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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