{"id":12861,"date":"2021-05-05T22:01:32","date_gmt":"2021-05-05T20:01:32","guid":{"rendered":"http:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/?p=12861"},"modified":"2021-05-06T14:33:07","modified_gmt":"2021-05-06T12:33:07","slug":"les-roques-sedimentaries-ens-mostren-el-passat","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/general\/les-roques-sedimentaries-ens-mostren-el-passat\/","title":{"rendered":"Les roques sediment\u00e0ries ens mostren el passat"},"content":{"rendered":"<p>Dimecres 5 de maig alumnes de batxillerat de l\u2019optativa de CTMA de l&#8217; <strong>Institut Fort Pius <\/strong>de Barcelona i de l&#8217;<strong>Institut Marina <\/strong>de La Llagosta han realitzat (en espais f\u00edsics diferents) una sortida de geologia a Pallej\u00e0 per 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-medium wp-image-12863 alignleft\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2021\/05\/IMG_4755-300x219.jpg\" alt=\"\" width=\"300\" height=\"219\" \/>S\u2019han dividit en petits grups i amb el material de camp necessari han comen\u00e7at l\u2019itinerari que consta de 3 parades en\u00a0 diferents afloraments.\u00a0 En cada parada han realitzat una s\u00e8rie de proves: observaci\u00f3 d\u2019estructures sediment\u00e0ries, examinar la granulometria dels materials, comprovar la duresa del mineral que trobem en la roca, provar la reacci\u00f3 amb\u00a0 HCl per confirmar si cont\u00e9 carbonat de calci i verificar la duresa per tal d\u2019identificar la roca observada. Han obtingut dades topogr\u00e0fiques com coordenades UTM i altitud i tamb\u00e9 han calculat el cabussament dels estrats i la pot\u00e8ncia dels afloraments fent servir diverses t\u00e8cniques matem\u00e0tiques.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-12864 alignright\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2021\/05\/IMG_20210505_174448_730bis-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2021\/05\/IMG_20210505_174448_730bis-300x300.jpg 300w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2021\/05\/IMG_20210505_174448_730bis-150x150.jpg 150w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2021\/05\/IMG_20210505_174448_730bis.jpg 320w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>Han confirmat que el primer aflorament correspon a conglomerat amb quarsita i el segon correspon a gres ric en quars. Aquestes dos litologies pertanyen al\u00a0 primer estatge del Tri\u00e0sic (Buntsandstein).<span style=\"font-family: inherit; font-size: 1em;\">S\u00f3n roques rogenques d&#8217;origen continental que reposen sobre un s\u00f2col Paleozoic de pissarres. En l\u2019aflorament superior han identificat calc\u00e0ries i dolomies del , segon estatge del Tri\u00e0sic (<\/span>Muschelkalk) <span style=\"font-family: inherit; font-size: 1em;\">que indica unes condicions de sedimentaci\u00f3 marines.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-12865 alignleft\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2021\/05\/IMG_4760-300x203.jpg\" alt=\"\" width=\"300\" height=\"203\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>Amb totes les dades recollides han pogut interpretar l\u2019origen de la seq\u00fc\u00e8ncia, que correspon a una transgressi\u00f3 marina sobre una plana al\u00b7luvial i podran elaborar la columna estratigr\u00e0fica corresponent.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-12866 alignright\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2021\/05\/IMG_20210505_174448_731-300x188.jpg\" alt=\"\" width=\"300\" height=\"188\" \/>En el cam\u00ed de pujada han inspeccionat un antic forn de cal\u00e7 abandonat.<\/p>\n<p>Han completat una feina magn\u00edfica aplicant \u00a0t\u00e8cniques de camp relacionades amb la geologia.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dimecres 5 de maig alumnes de batxillerat de l\u2019optativa de CTMA de l&#8217; Institut Fort Pius de Barcelona i de l&#8217;Institut Marina de La Llagosta han realitzat (en espais f\u00edsics diferents) una sortida de geologia a Pallej\u00e0 per estudiar diferents afloraments de roques sedimentaries del Tri\u00e0sic. S\u2019han dividit en petits grups i amb el material [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":12868,"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":[1,295,29,348],"tags":[],"class_list":["post-12861","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general","category-geologia","category-portada","category-sedimentaries"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/12861","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=12861"}],"version-history":[{"count":3,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/12861\/revisions"}],"predecessor-version":[{"id":12869,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/12861\/revisions\/12869"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/media\/12868"}],"wp:attachment":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/media?parent=12861"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/categories?post=12861"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/tags?post=12861"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}