{"id":3054,"date":"2017-04-27T13:33:57","date_gmt":"2017-04-27T11:33:57","guid":{"rendered":"http:\/\/agora.xtec.cat\/iesm-jmzafra\/?p=3054"},"modified":"2018-06-08T13:18:49","modified_gmt":"2018-06-08T11:18:49","slug":"pissarra-paleolitica","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/blogs\/museu-de-geologia\/pissarra-paleolitica\/","title":{"rendered":"Pissarra Paleol\u00edtica"},"content":{"rendered":"<p><strong>Nom:<\/strong><br \/>\nCatal\u00e0: <strong>Pissarra Paleol\u00edtica<\/strong><br \/>\nCastellano: Pizarra Paleol\u00edtica<br \/>\nEnglish: Paleolithic Slate<br \/>\nFrances: Paleolithic Blackboard<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"\" src=\"https:\/\/static01.heraldo.es\/uploads\/imagenes\/8col\/2014\/07\/22\/_dsc1086dsc1086_d817207b.jpg?a6e06728e7d1d2658c7aa239308285e6\" alt=\"Resultado de imagen de pizarra paleolitica\" width=\"264\" height=\"170\" \/>\u00a0<img loading=\"lazy\" decoding=\"async\" class=\"\" src=\"https:\/\/i.ebayimg.com\/thumbs\/images\/g\/o6UAAOSwZrtax7Tt\/s-l225.jpg\" alt=\"Resultado de imagen de pizarra paleolitica\" width=\"138\" height=\"172\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><strong>Quin tipus i subtipus de roca i\/o mineral \u00e9s?<\/strong><br \/>\nEs una roca metam\u00f2rfica de grau baix de pressi\u00f3 i temperatura en roques argiloses<br \/>\nTe uns minerals invisibles .<br \/>\nFoliaci\u00f3 molt marcada.<\/p>\n<p><strong>Formaci\u00f3 de la roca i\/o mineral<\/strong><br \/>\nS \u0301 origine a mitjan\u00e7ant una transformaci\u00f3 estructural de les roques que te lloc en<br \/>\nestat solid com conseq\u00fc\u00e8ncia de la pressi\u00f3 i la temperatura.<\/p>\n<p><strong>Composici\u00f3 qu\u00edmica<\/strong><br \/>\nLa pissarra es compon principalment de quars i moscovita (illita), sovint juntament<br \/>\namb biotita, clorita, hematita i pirita. Amb menys freq\u00fc\u00e8ncia, cont\u00e9 apatita, grafit,<br \/>\ncaol\u00ed, magnetita, turmalina o zircono, aix\u00ed com feldspat.<\/p>\n<p><strong>Breu descripci\u00f3 (color, textura&#8230;)<\/strong><br \/>\nEsta dividida en moltes capes,amb una textura argilosa, i pot ser de color negre,<br \/>\nblau gris i existeixen de colors vermells i verds.<\/p>\n<p><strong>Usos i\/o aplicacions<\/strong><br \/>\nEs fan utilitzar per fer les teulades de les cases per la seva resist\u00e8ncia al aigua, i<br \/>\nantigament s \u0301 usaven com instrument de escriptura.<\/p>\n<p><strong>Lloc d&#8217;origen (Jaciments m\u00e9s importants)<\/strong><br \/>\nAquesta pedra es troba majorment en (Espa\u00f1a) i les seus jaciments son El<br \/>\nBierzo, Cabrera (Le\u00f3n), Valdeorras (Orense), Ortigueira (La Coru\u00f1a), Riofrio de<br \/>\nAliste, Palazuelo de las Cuevas(Zamora), Bernardos (Segovia) y Villar del<br \/>\nRey (Badajoz).<\/p>\n<p><strong>Refer\u00e8ncia bibliogr\u00e0fica<\/strong><\/p>\n<p>https:\/\/es.wikipedia.org\/wiki\/Pizarra_(roca)<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"t38mf8Nzvx\"><p><a href=\"https:\/\/bloquescando.com\/la-pizarra-origen-y-usos\/\">La pizarra, origen y usos<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"\u00abLa pizarra, origen y usos\u00bb \u2014 Bloques Cando\" src=\"https:\/\/bloquescando.com\/la-pizarra-origen-y-usos\/embed\/#?secret=pXrBCml2DI#?secret=t38mf8Nzvx\" data-secret=\"t38mf8Nzvx\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><br \/>\nhttp:\/\/geologiaonline.com\/pizarra-composicion-usos-mas\/<\/p>\n<div class=\"ast-oembed-container \" style=\"height: 100%;\"><iframe loading=\"lazy\" title=\"Roques metam\u00f2rfiques\" src=\"https:\/\/www.slideshare.net\/slideshow\/embed_code\/key\/CLcYRVuHWDc2ac\" width=\"427\" height=\"356\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" style=\"border:1px solid #CCC; border-width:1px; margin-bottom:5px; max-width: 100%;\" allowfullscreen> <\/iframe> <\/p>\n<div style=\"margin-bottom:5px\"> <strong> <a href=\"https:\/\/www.slideshare.net\/slideshow\/roques-metamrfiques\/15560654\" title=\"Roques metam\u00f2rfiques\" target=\"_blank\">Roques metam\u00f2rfiques<\/a> <\/strong> from <strong><a href=\"https:\/\/www.slideshare.net\/GeorginaColome\" target=\"_blank\">Georgina Colome<\/a><\/strong> <\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Nom: Catal\u00e0: Pissarra Paleol\u00edtica Castellano: Pizarra Paleol\u00edtica English: Paleolithic Slate Frances: Paleolithic Blackboard &nbsp; \u00a0 &nbsp; Quin tipus i subtipus de roca i\/o mineral \u00e9s? Es una roca metam\u00f2rfica de grau baix de pressi\u00f3 i temperatura en roques argiloses Te uns minerals invisibles . Foliaci\u00f3 molt marcada. Formaci\u00f3 de la roca i\/o mineral S \u0301 [&hellip;]<\/p>\n","protected":false},"author":182,"featured_media":0,"comment_status":"closed","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":[321],"tags":[352,326],"class_list":["post-3054","post","type-post","status-publish","format-standard","hentry","category-museu-de-geologia","tag-2b6","tag-metamorfiques"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts\/3054","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\/182"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/comments?post=3054"}],"version-history":[{"count":4,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts\/3054\/revisions"}],"predecessor-version":[{"id":9964,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts\/3054\/revisions\/9964"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/media?parent=3054"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/categories?post=3054"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/tags?post=3054"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}