{"id":3073,"date":"2017-04-28T11:35:05","date_gmt":"2017-04-28T09:35:05","guid":{"rendered":"http:\/\/agora.xtec.cat\/iesm-jmzafra\/?p=3073"},"modified":"2017-04-28T11:35:05","modified_gmt":"2017-04-28T09:35:05","slug":"argila-vermalla","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/blogs\/museu-de-geologia\/argila-vermalla\/","title":{"rendered":"ARGILA VERMALLA"},"content":{"rendered":"
\"img_20170208_140100-000\"<\/a>NOM<\/b><\/h6>\n

ca\u00a0<\/em>Argila Vermella<\/span><\/p>\n

es<\/em> Arcilla Roja<\/span><\/p>\n

en<\/em> Red Clay<\/span><\/p>\n

 <\/p>\n

DESCRIPCI\u00d3<\/strong><\/p>\n

L\u2019argila<\/span> \u00e9s una roca sediment\u00e0ria principalment composta per la descomposici\u00f3 de roques feldespatiques. F\u00edsicament,es considera una barreja de part\u00edcules extremadament petites i superf\u00edcies llises.Aix\u00ed doncs cont\u00e9 part\u00edcules que s\u00f3n impermeables i per tant al ser banyat en aigua queda menys solid.Al ser exposat al sol torna a agafar la seva solidesa original.A part d\u2019aquestes qualitats,el diametre \u00a0de les seves part\u00edcules \u00a0\u00e9s inferior a 0,002 mm.<\/span>
\n<\/span>La composici\u00f3 qu\u00edmica del components de l\u2019argila s\u00f3n els seguents:<\/span><\/p>\n

-la caolinita , de f\u00f3rmula Si2O5Al2(OH)4;<\/span><\/p>\n

-lamontmorillonita, de f\u00f3rmula Si4O10Al5\/3Mg1\/3Na1\/3(OH)2;<\/span><\/p>\n

-la illita, de f\u00f3rmula KAl2(AlSi3O10)(OH)2.<\/span><\/p>\n

L\u2019antiguitat d\u2019aquesta roca,que va ser trobada a l\u2019Empord\u00e0 no es coneix tot i que hi hagi hagut una llarga investigaci\u00f3 sobre la seva antiguitat.<\/span><\/p>\n

\u00daS<\/strong><\/p>\n

L’argila, que \u00e9s procedent del sol o roca sediment\u00e0ria, \u00e9s pl\u00e0stica quan \u00e9s barrejada amb aigua, per\u00f2 \u00e9s dura i tena\u00e7 quan es cou en un forn. Aix\u00f2 ha perm\u00e8s a l’home des de l\u2019antiguitat<\/span> donar-li diferents usos, els m\u00e9s importants dels quals es troben en l’edificaci\u00f3 i l’elaboraci\u00f3 de recipients.<\/span><\/p>\n

 <\/p>\n

LLOC D\u2019ORIGEN<\/strong><\/p>\n

L\u2019Empord\u00e0 \u00e9s una comarca catalana sense \u00fas administratiu compresa entre les serres de l’Albera i Gavarres. En la divisi\u00f3 comarcal de 1936 dues comarques administratives en reberen el nom: l’Alt Empord\u00e0 i el Baix Empord\u00e0, i en una dotzena de municipis m\u00e9s lim\u00edtrofs a aquestes dues, disseminats actualment entre les comarques del Giron\u00e8s i el Pla de l\u2019Estany.<\/span><\/p>\n

 <\/p>\n

LA PROCED\u00c8NCIA<\/strong><\/p>\n

Les roques son de l\u2019escola Dovella (al carrer Mallorca) i un professor en pr\u00e1ctiques ens va deixar escollir les roques que actualment tenim. Les roques les vam trobar al laboratori de Ci\u00e8ncies (les vam posar all\u00e0 per ser posteriorment analitzades) Creiem que procedeixen de la col\u00b7lecci\u00f3 de l\u2019Escola Superior d\u2019Agricultura( l\u2019Escola Superior d\u2019Agricultura ha proporcionat les pedres a l\u2019escola dovella i la dovella ens les ha donat a nosaltres)<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

NOM ca\u00a0Argila Vermella es Arcilla Roja en Red Clay   DESCRIPCI\u00d3 L\u2019argila \u00e9s una roca sediment\u00e0ria principalment composta per la descomposici\u00f3 de roques feldespatiques. F\u00edsicament,es considera una barreja de part\u00edcules extremadament petites i superf\u00edcies llises.Aix\u00ed doncs cont\u00e9 part\u00edcules que s\u00f3n impermeables i per tant al ser banyat en aigua queda menys solid.Al ser exposat al […]<\/p>\n","protected":false},"author":87,"featured_media":0,"comment_status":"closed","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":[321],"tags":[343],"class_list":["post-3073","post","type-post","status-publish","format-standard","hentry","category-museu-de-geologia","tag-sedimentaria-2b5"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts\/3073","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/users\/87"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/comments?post=3073"}],"version-history":[{"count":4,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts\/3073\/revisions"}],"predecessor-version":[{"id":9971,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts\/3073\/revisions\/9971"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/media?parent=3073"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/categories?post=3073"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/tags?post=3073"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}