{"id":3242,"date":"2015-10-27T11:35:58","date_gmt":"2015-10-27T10:35:58","guid":{"rendered":"http:\/\/blocs.xtec.cat\/cdacansantoi\/?p=3242"},"modified":"2015-10-27T11:35:58","modified_gmt":"2015-10-27T10:35:58","slug":"alumnes-de-4t-deso-han-fet-de-geolegs","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/general\/alumnes-de-4t-deso-han-fet-de-geolegs\/","title":{"rendered":"Alumnes de 4t d&#8217;ESO han fet de ge\u00f2legs"},"content":{"rendered":"<p style=\"text-align: justify;\">El dijous 22 i divendres 23 d&#8217;octubre aquests alumnes de l&#8217;institut Joan Or\u00f3 de Martorell van fer un estudi geol\u00f2gic de les roques sediment\u00e0ries de Pallej\u00e0.<\/p>\n<p style=\"text-align: justify;\">Van fer un recorregut de pujada de 100 metres de desnivell on en cada un dels tres afloraments van recollir tot un conjunt de dades per recon\u00e8ixer les diferents roques, el mineral m\u00e9s abundant i per poder establir finalment la hist\u00f2ria geol\u00f2gica de la zona.<br \/>\nAix\u00ed aprenent a utilitzar diferents eines de cada parada van realitzar el seg\u00fcent:<a href=\"http:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2015\/10\/IMG_2877.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-medium wp-image-3263\" src=\"http:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2015\/10\/IMG_2877-300x225.jpg\" alt=\"IMG_2877\" width=\"300\" height=\"225\" srcset=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2015\/10\/IMG_2877-300x225.jpg 300w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2015\/10\/IMG_2877-200x150.jpg 200w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2015\/10\/IMG_2877.jpg 320w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: justify;\">&#8211; Trobar les coordenades i l&#8217;altura amb el GPS<br \/>\n&#8211; Mesurar la pot\u00e8ncia de cada aflorament utilitzant t\u00e8cniques diferents: teorema de Thales, clin\u00f2metre i corbes de nivell.<br \/>\n-Descriure i dibuixar proporcionalment l&#8217;aflorament i un detall de la roca.<br \/>\n-Trobar amb l&#8217;ajuda del clin\u00f2metre i una br\u00faixola la inclinaci\u00f3 i sentit de cabussament.<br \/>\n-Mesurar el promig del gruix dels estrats.<br \/>\n-Observar les estructures presents en cada aflorament: laminaci\u00f3 paral\u00b7lela, laminaci\u00f3 creuada, bioturbaci\u00f3 o granoclassificaci\u00f3.<\/p>\n<p style=\"text-align: justify;\"><a href=\"http:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2015\/10\/SED_Ins_J_Oro.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-3277\" src=\"http:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2015\/10\/SED_Ins_J_Oro.jpg\" alt=\"SED_Ins_J_Oro\" width=\"250\" height=\"184\" \/><\/a>Despr\u00e9s, per identificar la roca van picar amb un martell de ge\u00f2leg per valorar la pres\u00e8ncia de p\u00e0tina, la compacitat de la roca i van posar unes gotes d&#8217;\u00e0cid clorh\u00eddric dilu\u00eft per valorar la naturalesa carbon\u00e0tica. Amb aquestes dades i l&#8217;observaci\u00f3 d&#8217;algunes caracter\u00edstiques de la roca la van classificar a partir d&#8217;una \u00a0taula dicot\u00f2mica.<br \/>\nUn cop van saber el nom de la roca van aplicar l&#8217;escala de Mohs amb l&#8217;ajut d&#8217;un kit per descobrir quin \u00e9s el mineral m\u00e9s abundant en cada una de les roques.<br \/>\nFinalment amb la informaci\u00f3 que hi havia a l&#8217;annex del dossier van deduir l&#8217;ambient sedimentari on s&#8217;havia dipositat cada material i la paleolatitud on es trobava la localitat quan es van formar les roques.<\/p>\n<p style=\"text-align: justify;\">Per acabar van valorar tota la hist\u00f2ria geol\u00f2gica que va fer possible la formaci\u00f3 d&#8217;aquests afloraments i van deduir que van comen\u00e7ar en un ambient de riu torrencial i a mida que s&#8217;anaven acumulant els sediments es corresponien a ambients d&#8217;aig\u00fces m\u00e9s tranquil\u00b7les, per acabar en un ambient mar\u00ed somer.<\/p>\n<p style=\"text-align: justify;\">Esperem que hagi estat una sortida molt profitosa!<\/p>\n<p style=\"text-align: justify;\"><a title=\"Itinerari geol\u00f2gic: les roques i els ambients sedimentaris. ESO\" href=\"http:\/\/blocs.xtec.cat\/cdacansantoi\/itinerari-geologic-roques-ambient-sedimentaris-eso\/\">M\u00e9s informaci\u00f3 de l&#8217;activitat<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>El dijous 22 i divendres 23 d&#8217;octubre aquests alumnes de l&#8217;institut Joan Or\u00f3 de Martorell van fer un estudi geol\u00f2gic de les roques sediment\u00e0ries de Pallej\u00e0. Van fer un recorregut de pujada de 100 metres de desnivell on en cada un dels tres afloraments van recollir tot un conjunt de dades per recon\u00e8ixer les diferents [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"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":"","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],"tags":[],"class_list":["post-3242","post","type-post","status-publish","format-standard","hentry","category-general"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/3242","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=3242"}],"version-history":[{"count":0,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/3242\/revisions"}],"wp:attachment":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/media?parent=3242"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/categories?post=3242"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/tags?post=3242"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}