{"id":3044,"date":"2017-02-17T21:21:11","date_gmt":"2017-02-17T20:21:11","guid":{"rendered":"http:\/\/agora.xtec.cat\/iesm-jmzafra\/?p=3044"},"modified":"2017-04-28T11:35:28","modified_gmt":"2017-04-28T09:35:28","slug":"caliza-cristalina","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/blogs\/museu-de-geologia\/caliza-cristalina\/","title":{"rendered":"CALIZA CRISTALINA"},"content":{"rendered":"
NOM\u00a0\"calizacristalina_bona_2a4_v2\"<\/a><\/strong><\/h6>\n

ca<\/em> Calc\u00e0ria cristalina
\nes<\/em>\u00a0Caliza cristalina
\nen<\/em>\u00a0Crystalline limestone<\/p>\n

DESCRIPCI\u00d3<\/strong><\/h6>\n

La caliza es un tipus com\u00fa de roca sediment\u00e0ria; majorment composta per calcita (carbonat de calci, CaCO3)
\nLes calc\u00e0ries es formen en els mars c\u00e0lids y poc profunds de les regions tropicals, en aquelles zones en que les aportacions detrit\u00edcs s\u00f3n poc importants.
\nLes zones marines poc profundes van proporcionar el perfecte brou de coltiu per a la formaci\u00f3 de carbonat c\u00e0lcic, que donaria lloc al comen\u00e7ament de la vida sota l\u2019aigua com a resultat de l\u2019acumulaci\u00f3 de dip\u00f2sits biol\u00f2gics.
\nOrigen qu\u00edmic: el carbonat de calci es dissol amb molta facilitat en aig\u00fces que contenen gas carb\u00f2nic dissolt (CO2). En entorns en els quals aig\u00fces carregades de CO2 alliberen bruscament aquest gas a l’atmosfera, es produeix generalment la precipitaci\u00f3 del carbonat de calci en exc\u00e9s segons la seg\u00fcent reacci\u00f3:<\/p>\n

Ca2 + + 2 (HCO3) = CaCO3 + H2O + CO2<\/p>\n

Aquest alliberament de CO2 interv\u00e9, fonamentalment, en dos tipus d’entorns: al litoral quan arriben a la superf\u00edcie aig\u00fces carregades de CO2 i, sobre els continents, quan les aig\u00fces subterr\u00e0nies arriben a la superf\u00edcie.
\nEs creu que la pedra calc\u00e0ria ha existit durant m\u00e9s de 3000 milions d’anys, des de l’Era Prec\u00e1mbrica.<\/p>\n

OBSERVACI\u00d3 AMB LUPA<\/strong><\/h6>\n

\"calizacristalinalupa\"<\/a>\u00a0\"calizacristalinagerard\"<\/a>\u00a0\u00a0\"calizacristalina\"<\/a><\/p>\n

Caliza Cristalina Lupa. \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Alumnes de 2nA observant amb lupa. \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Caliza Cristalina.<\/p>\n

\u00c8POCA GEOL\u00d2GICA<\/strong><\/h6>\n

La Calc\u00e0ria Cristalina no \u00e9s un f\u00f2ssil.<\/p>\n

\u00daS<\/strong><\/h6>\n

Certs tipus de calc\u00e0ria es fan servir en la construcci\u00f3. La pedra calc\u00e0ria t\u00e9 molts usos. \u00c9s un ingredient de la producci\u00f3 del ciment, del morter, del ferro i de l’acer, de productes de neteja i del vidre. S’usa en xemeneies i pot ser perfeccionat per la rajola de pisos.
\nTanmateix \u00e9s utilitzada en la construcci\u00f3 de enrocaments per a obres mar\u00edtimes i portu\u00e0ries com esculleres, espigons, esculleres entre altres estructures d’estabilitzaci\u00f3 i protecci\u00f3. La roca calc\u00e0ria \u00e9s un component important del ciment gris usat en les construccions modernes.<\/p>\n

LLOC D\u2019ORIGEN<\/strong><\/h6>\n

Gombr\u00e8n \u00e9s un municipi catal\u00e0 de la comarca del Ripoll\u00e8s. Anomenat tamb\u00e9 popularment Gombreny per influ\u00e8ncia de l’antiga parr\u00f2quia de Montgrony, va ser la denominaci\u00f3 oficial fins al 1984. Prov\u00e9 de l’antrop\u00f2nim germ\u00e0nic Gomesind.
\nUbicaci\u00f3:
\nAl l\u00edmit amb la comarca del Bergued\u00e0, de la qual la separa l’Arija i els seus afluents el torrent del Coll de la Bona i el rec del Roquerol, compr\u00e8n el sector de cap\u00e7alera del riu Merd\u00e0s, territori molt accidentat, format per diverses valls entre altres serralades i escasses planures.
\nPoble:
\n\u00c9s un municipi eminentment rural i menestral, per\u00f2 compta tamb\u00e9 amb algunes petites ind\u00fastries. El poble de Gombr\u00e8n, a la vall del riu Merd\u00e0s o canal de Gombr\u00e8n, entre els massissos de Mongrony i de Puigb\u00f2, d\u00f3na nom i centra el municipi. El nom prov\u00e9 de l’antrop\u00f2nim Gomesindus (d’on deriva tamb\u00e9 la forma popular de Gombreny).<\/p>\n

MAPA<\/strong><\/h6>\n

\"2017-02-17-1\"<\/a>\u00a0 \u00a0\"2017-02-17-2\"<\/a>\u00a0\u00a0\"2017-02-17-3\"<\/a><\/p>\n

Espanya, Gombr\u00e8n.<\/p>\n

PROCED\u00c8NCIA<\/strong><\/h6>\n

La Caliza Cristalina ens l\u2019ha ha proporcionat l\u2019Escola Superior d\u2019Agricultura.<\/p>\n

REFER\u00c8NCIES BIBLIOGR\u00c0FIQUES<\/strong><\/h6>\n

Webs<\/p>\n

http:\/\/www.lhoist.com\/es\/or%C3%ADgenes-de-la-piedra-caliza (20\/01\/2017)
\nhttp:\/\/tecnologiadelainformacioncapleon.blogspot.com.es\/\u00a0(20\/01\/2017)
\nhttps:\/\/es.answers.yahoo.com\/question\/index?qid=20081230141657AAzuQ6H\u00a0(20\/01\/2017)<\/p>\n

 <\/p>\n

Melisa Cochior, Julie Villegas, Gerard Armentero<\/p>\n","protected":false},"excerpt":{"rendered":"

NOM\u00a0 ca Calc\u00e0ria cristalina es\u00a0Caliza cristalina en\u00a0Crystalline limestone DESCRIPCI\u00d3 La caliza es un tipus com\u00fa de roca sediment\u00e0ria; majorment composta per calcita (carbonat de calci, CaCO3) Les calc\u00e0ries es formen en els mars c\u00e0lids y poc profunds de les regions tropicals, en aquelles zones en que les aportacions detrit\u00edcs s\u00f3n poc importants. Les zones marines […]<\/p>\n","protected":false},"author":131,"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":[324,327],"class_list":["post-3044","post","type-post","status-publish","format-standard","hentry","category-museu-de-geologia","tag-2a4","tag-sedimentaria"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts\/3044","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\/131"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/comments?post=3044"}],"version-history":[{"count":3,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts\/3044\/revisions"}],"predecessor-version":[{"id":4465,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts\/3044\/revisions\/4465"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/media?parent=3044"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/categories?post=3044"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/tags?post=3044"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}