{"id":5388,"date":"2021-10-09T10:26:47","date_gmt":"2021-10-09T08:26:47","guid":{"rendered":"https:\/\/agora.xtec.cat\/zerelscastells\/?p=5388"},"modified":"2021-10-18T00:28:52","modified_gmt":"2021-10-17T22:28:52","slug":"simulacre-derupcio-volcanica","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/zerelscastells\/baumeta\/simulacre-derupcio-volcanica\/","title":{"rendered":"SIMULACRE D’ERUPCI\u00d3 VOLC\u00c0NICA"},"content":{"rendered":"

Aquests dies hem sentit a parlar molt del volc\u00e0 de Palma i ens t\u00e9 a tots i totes molt intrigats i alhora preocupats per la gent que viu a l’illa.<\/p>\n

Hem estat buscant informaci\u00f3 per a saber-ne una mica m\u00e9s i hem descobert que el Cumbre Vieja, el volc\u00e0 de l’illa de La Palma, va entrar en erupci\u00f3 a la zona coneguda com Cabeza de Vaca. Com la resta de les illes Can\u00e0ries, La Palma \u00e9s d’origen volc\u00e0nic i la ra\u00f3 que ara s’hagi produ\u00eft aquesta erupci\u00f3 \u00e9s l’acumulaci\u00f3 de roca fosa, el magma, a uns pocs quil\u00f2metres de profunditat.<\/p>\n

A mesura que el magma s’acumula, augmenta la pressi\u00f3 que produeix i s’acosta a la superf\u00edcie. La pressi\u00f3\u00a0deforma i trenca roques i finalment obre fractures, per les quals passen a l’atmosfera gasos, essencialment \u00f2xids de sofre.<\/p>\n

El resultat final \u00e9s el que s’anomena erupci\u00f3 fissural, en qu\u00e8 es produeixen diverses fissures i boques eruptives per on sorgeix la lava, que \u00e9s el nom que rep el magma un cop emergeix.<\/p>\n

Per acabar-ho d’entendre millor, hem volgut fer un simulacre d’erupci\u00f3 volc\u00e0nica amb bicarbonat i vinagre. D’aquesta manera hem pogut obervar que al barrejar el vinagre amb el bicarbonat t\u00e9 lloc una reacci\u00f3 qu\u00edmica en la que es produeix aigua, sal (acetat de sodi) i gas (di\u00f2xid de carboni). Aquest gas \u00e9s el gas responsable que es formin les bombolles que simulen l’erupci\u00f3 volc\u00e0nica. Quan deixen de produir-se bombolles, la reacci\u00f3 qu\u00edmica ha acabat i la \u201clava del volc\u00e0\u201d s\u2019atura.<\/p>\n

L’experiment ens ha agradat molt per\u00f2 tamb\u00e9 ens ha fet adonar que la lava engloeix tot all\u00f2 que troba sense miraments!<\/p>\n

\"\"<\/a><\/p>\n

https:\/\/photos.app.goo.gl\/LHuWk9pK4rmMcDEh7<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Aquests dies hem sentit a parlar molt del volc\u00e0 de Palma i ens t\u00e9 a tots i totes molt intrigats i alhora preocupats per la gent que viu a l’illa. Hem estat buscant informaci\u00f3 per a saber-ne una mica m\u00e9s i hem descobert que el Cumbre Vieja, el volc\u00e0 de l’illa de La Palma, va […]<\/p>\n","protected":false},"author":4,"featured_media":0,"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":[151],"tags":[],"class_list":["post-5388","post","type-post","status-publish","format-standard","hentry","category-baumeta"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/zerelscastells\/wp-json\/wp\/v2\/posts\/5388","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/zerelscastells\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/zerelscastells\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/zerelscastells\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/zerelscastells\/wp-json\/wp\/v2\/comments?post=5388"}],"version-history":[{"count":2,"href":"https:\/\/agora.xtec.cat\/zerelscastells\/wp-json\/wp\/v2\/posts\/5388\/revisions"}],"predecessor-version":[{"id":5435,"href":"https:\/\/agora.xtec.cat\/zerelscastells\/wp-json\/wp\/v2\/posts\/5388\/revisions\/5435"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/zerelscastells\/wp-json\/wp\/v2\/media?parent=5388"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/zerelscastells\/wp-json\/wp\/v2\/categories?post=5388"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/zerelscastells\/wp-json\/wp\/v2\/tags?post=5388"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}