{"id":8062,"date":"2025-12-10T00:09:31","date_gmt":"2025-12-10T00:09:31","guid":{"rendered":"https:\/\/eternumebrietas.org\/?p=8062"},"modified":"2025-12-10T00:09:31","modified_gmt":"2025-12-10T00:09:31","slug":"beira-baixa-geology","status":"publish","type":"post","link":"https:\/\/eternumebrietas.org\/fr\/beira-baixa-geology\/","title":{"rendered":"G\u00e9ologie de Beira Baixa"},"content":{"rendered":"<div id=\"fws_6a8e7eabc30e0\"  data-column-margin=\"default\" data-midnight=\"dark\"  class=\"wpb_row vc_row-fluid vc_row\"  style=\"padding-top: 0px; padding-bottom: 0px; \"><div class=\"row-bg-wrap\" data-bg-animation=\"none\" data-bg-animation-delay=\"\" data-bg-overlay=\"false\"><div class=\"inner-wrap row-bg-layer\" ><div class=\"row-bg viewport-desktop\"  style=\"\"><\/div><\/div><\/div><div class=\"row_col_wrap_12 col span_12 dark left\">\n\t<div  class=\"vc_col-sm-12 wpb_column column_container vc_column_container col no-extra-padding inherit_tablet inherit_phone\"  data-padding-pos=\"all\" data-has-bg-color=\"false\" data-bg-color=\"\" data-bg-opacity=\"1\" data-animation=\"\" data-delay=\"0\" >\n\t\t<div class=\"vc_column-inner\" >\n\t\t\t<div class=\"wpb_wrapper\">\n\t\t\t\t\n<div class=\"wpb_text_column wpb_content_element\" >\n\t<div class=\"wpb_wrapper\">\n\t\t<article id=\"post-beira-baixa-geology\">\n<header>\n<h1>G\u00e9ologie de Beira Baixa\u00a0: comment les roches r\u00e9gionales fa\u00e7onnent l'eau, le sol et le paysage<\/h1>\n<p>La g\u00e9ologie de Beira Baixa influence tout, de la qualit\u00e9 de l'eau \u00e0 la fertilit\u00e9 des sols. Cet aper\u00e7u explique les principales formations rocheuses autour de Sobreira Formosa et leur impact sur les eaux souterraines.<\/p>\n<\/header>\n<section id=\"section-1\">\n<h2>Fondements g\u00e9ologiques de Beira Baixa<\/h2>\n<p>La g\u00e9ologie de Beira Baixa est domin\u00e9e par d'anciens schistes, quartzites et intrusions granitiques. \u00c9tant donn\u00e9 que ces roches se fracturent au lieu de se dissoudre, elles cr\u00e9ent des voies \u00e9troites pour le mouvement de l\u2019eau. Cette structure g\u00e9ologique explique la disponibilit\u00e9 saisonni\u00e8re de l'eau et la composition min\u00e9rale in\u00e9gale.<\/p>\n<ul>\n<li class=\"translation-block\"><strong>Ceintures de schistes\u00a0:<\/strong> r\u00e9pandues \u00e0 Sobreira Formosa, produisant des aquif\u00e8res fractur\u00e9s \u00e0 faible rendement.<\/li>\n<li class=\"translation-block\"><strong>Cr\u00eates de quartzite\u00a0:<\/strong> r\u00e9sistent \u00e0 l'\u00e9rosion, formant des montagnes et limitant l'\u00e9coulement des eaux souterraines.<\/li>\n<li class=\"translation-block\"><strong>Zones granitiques\u00a0:<\/strong> approfondissent les sols et augmentent l'alt\u00e9ration min\u00e9rale.<\/li>\n<li class=\"translation-block\"><strong>Terrains m\u00e9tamorphiques\u00a0:<\/strong> typiques du centre du Portugal.<\/li>\n<\/ul>\n<p><em>Liens internes :<\/em> <a href=\"https:\/\/eternumebrietas.org\/fr\/sobreira-formosa-local-water-resources\/\">\/local-water-resources<\/a> | <a href=\"https:\/\/eternumebrietas.org\/fr\/sobreira-formosa-water-quality\/\">\/local-water-quality<\/a><\/p>\n<\/section>\n<\/article>\n\t<\/div>\n<\/div>\n\n\n\n\n\t\t\t<\/div> \n\t\t<\/div>\n\t<\/div> \n<\/div><\/div>\n\t\t<div id=\"fws_6a8e7eabc3645\"  data-column-margin=\"default\" data-midnight=\"dark\"  class=\"wpb_row vc_row-fluid vc_row full-width-content vc_row-o-equal-height vc_row-flex vc_row-o-content-top\"  style=\"padding-top: 0px; padding-bottom: 0px; \"><div class=\"row-bg-wrap\" data-bg-animation=\"none\" data-bg-animation-delay=\"\" data-bg-overlay=\"false\"><div class=\"inner-wrap row-bg-layer\" ><div class=\"row-bg viewport-desktop\"  style=\"\"><\/div><\/div><\/div><div class=\"row_col_wrap_12 col span_12 dark left\">\n\t<div style=\"\" class=\"vc_col-sm-12 wpb_column column_container vc_column_container col no-extra-padding inherit_tablet inherit_phone\" data-using-bg=\"true\" data-padding-pos=\"all\" data-has-bg-color=\"false\" data-bg-color=\"\" data-bg-opacity=\"1\" data-animation=\"\" data-delay=\"0\" >\n\t\t<div class=\"vc_column-inner\" ><div class=\"column-image-bg-wrap column-bg-layer viewport-desktop\" data-n-parallax-bg=\"true\" data-parallax-speed=\"minimum\" data-bg-pos=\"center center\" data-bg-animation=\"zoom-out-slow\" data-bg-overlay=\"false\"><div class=\"inner-wrap\"><div class=\"column-image-bg parallax-layer\" style=\" background-image: url('https:\/\/eternumebrietas.org\/wp-content\/uploads\/2025\/12\/Geology-of-Beira-Baixa4.png'); \"><\/div><\/div><\/div>\n\t\t\t<div class=\"wpb_wrapper\">\n\t\t\t\t<div class=\"divider-wrap\" data-alignment=\"default\"><div style=\"height: 400px;\" class=\"divider\"><\/div><\/div>\n\t\t\t<\/div> \n\t\t<\/div>\n\t<\/div> \n<\/div><\/div>\n\t\t<div id=\"fws_6a8e7eabc3b64\"  data-column-margin=\"default\" data-midnight=\"dark\"  class=\"wpb_row vc_row-fluid vc_row\"  style=\"padding-top: 0px; padding-bottom: 0px; \"><div class=\"row-bg-wrap\" data-bg-animation=\"none\" data-bg-animation-delay=\"\" data-bg-overlay=\"false\"><div class=\"inner-wrap row-bg-layer\" ><div class=\"row-bg viewport-desktop\"  style=\"\"><\/div><\/div><\/div><div class=\"row_col_wrap_12 col span_12 dark left\">\n\t<div  class=\"vc_col-sm-12 wpb_column column_container vc_column_container col no-extra-padding inherit_tablet inherit_phone\"  data-padding-pos=\"all\" data-has-bg-color=\"false\" data-bg-color=\"\" data-bg-opacity=\"1\" data-animation=\"\" data-delay=\"0\" >\n\t\t<div class=\"vc_column-inner\" >\n\t\t\t<div class=\"wpb_wrapper\">\n\t\t\t\t\n<div class=\"wpb_text_column wpb_content_element\" >\n\t<div class=\"wpb_wrapper\">\n\t\t<h2>Comment la g\u00e9ologie de Beira Baixa influence la qualit\u00e9 de l'eau<\/h2>\n<section id=\"section-2\">Les min\u00e9raux et les fractures des roches de Beira Baixa affectent directement les eaux souterraines. \u00c9tant donn\u00e9 que l\u2019eau s\u2019\u00e9coule \u00e0 travers des fractures \u00e9troites, elle passe peu de temps \u00e0 dissoudre les min\u00e9raux, ce qui signifie que la plupart des eaux souterraines restent pauvres en solides dissous.<\/p>\n<ul>\n<li class=\"translation-block\"><strong>Faible min\u00e9ralisation\u00a0:<\/strong> fr\u00e9quente dans les aquif\u00e8res de schistes en raison d'une dissolution limit\u00e9e.<\/li>\n<li class=\"translation-block\"><strong>Duret\u00e9 variable<\/strong>\u00a0: les zones contenant davantage de roches granitiques ou calco-silicates pr\u00e9sentent des niveaux plus \u00e9lev\u00e9s de calcium et de magn\u00e9sium.<\/li>\n<li class=\"translation-block\"><strong>Sensible \u00e0 la contamination\u00a0:<\/strong> les syst\u00e8mes fractur\u00e9s permettent un mouvement rapide des polluants.<\/li>\n<li class=\"translation-block\"><strong>Influences mini\u00e8res\u00a0:<\/strong> les zones riches en sulfures peuvent lib\u00e9rer de l'arsenic, du plomb ou du cadmium lorsqu'elles sont perturb\u00e9es.<\/li>\n<\/ul>\n<h3>Pourquoi la g\u00e9ologie est importante pour la s\u00e9curit\u00e9 de l'eau<\/h3>\n<p>\u00c9tant donn\u00e9 que les aquif\u00e8res fractur\u00e9s ont un d\u00e9bit rapide, la pollution se propage rapidement et affecte les sources et les puits plus rapidement que dans les aquif\u00e8res poreux plus grands.<\/p>\n<\/section>\n\t<\/div>\n<\/div>\n\n\n\n\n\t\t\t<\/div> \n\t\t<\/div>\n\t<\/div> \n<\/div><\/div>\n\t\t<div id=\"fws_6a8e7eabc3e7d\"  data-column-margin=\"default\" data-midnight=\"dark\"  class=\"wpb_row vc_row-fluid vc_row full-width-content vc_row-o-equal-height vc_row-flex vc_row-o-content-top\"  style=\"padding-top: 0px; padding-bottom: 0px; \"><div class=\"row-bg-wrap\" data-bg-animation=\"none\" data-bg-animation-delay=\"\" data-bg-overlay=\"false\"><div class=\"inner-wrap row-bg-layer\" ><div class=\"row-bg viewport-desktop\"  style=\"\"><\/div><\/div><\/div><div class=\"row_col_wrap_12 col span_12 dark left\">\n\t<div style=\"\" class=\"vc_col-sm-12 wpb_column column_container vc_column_container col no-extra-padding inherit_tablet inherit_phone\" data-using-bg=\"true\" data-padding-pos=\"all\" data-has-bg-color=\"false\" data-bg-color=\"\" data-bg-opacity=\"1\" data-animation=\"\" data-delay=\"0\" >\n\t\t<div class=\"vc_column-inner\" ><div class=\"column-image-bg-wrap column-bg-layer viewport-desktop\" data-n-parallax-bg=\"true\" data-parallax-speed=\"minimum\" data-bg-pos=\"center center\" data-bg-animation=\"zoom-out-slow\" data-bg-overlay=\"false\"><div class=\"inner-wrap\"><div class=\"column-image-bg parallax-layer\" style=\" background-image: url('https:\/\/eternumebrietas.org\/wp-content\/uploads\/2025\/12\/Geology-of-Beira-Baixa2.png'); \"><\/div><\/div><\/div>\n\t\t\t<div class=\"wpb_wrapper\">\n\t\t\t\t<div class=\"divider-wrap\" data-alignment=\"default\"><div style=\"height: 400px;\" class=\"divider\"><\/div><\/div>\n\t\t\t<\/div> \n\t\t<\/div>\n\t<\/div> \n<\/div><\/div>\n\t\t<div id=\"fws_6a8e7eabc4378\"  data-column-margin=\"default\" data-midnight=\"dark\"  class=\"wpb_row vc_row-fluid vc_row\"  style=\"padding-top: 0px; padding-bottom: 0px; \"><div class=\"row-bg-wrap\" data-bg-animation=\"none\" data-bg-animation-delay=\"\" data-bg-overlay=\"false\"><div class=\"inner-wrap row-bg-layer\" ><div class=\"row-bg viewport-desktop\"  style=\"\"><\/div><\/div><\/div><div class=\"row_col_wrap_12 col span_12 dark left\">\n\t<div  class=\"vc_col-sm-12 wpb_column column_container vc_column_container col no-extra-padding inherit_tablet inherit_phone\"  data-padding-pos=\"all\" data-has-bg-color=\"false\" data-bg-color=\"\" data-bg-opacity=\"1\" data-animation=\"\" data-delay=\"0\" >\n\t\t<div class=\"vc_column-inner\" >\n\t\t\t<div class=\"wpb_wrapper\">\n\t\t\t\t\n<div class=\"wpb_text_column wpb_content_element\" >\n\t<div class=\"wpb_wrapper\">\n\t\t<h2>Accompagnement scientifique, \u00e9tudes de cas et risques r\u00e9gionaux<\/h2>\n<section id=\"section-3\">\n<h3>\u00c9tudes de cas pertinentes<\/h3>\n<ul>\n<li class=\"translation-block\"><strong>Mine Panasqueira\u00a0:<\/strong> dispersion de m\u00e9taux lourds bien document\u00e9e \u00e0 partir des r\u00e9sidus miniers.<\/li>\n<li class=\"translation-block\"><strong>Mine de Regoufe\u00a0:<\/strong> structure g\u00e9ologique similaire avec contamination des sols et de l'eau.<\/li>\n<\/ul>\n<h3>Preuve hydrog\u00e9ologique<\/h3>\n<p>Les \u00e9tudes sur les aquif\u00e8res portugais classent Beira Baixa comme un domaine de roches fractur\u00e9es, avec un faible stockage et une grande vuln\u00e9rabilit\u00e9. Ces r\u00e9sultats correspondent aux observations de terrain \u00e0 Sobreira Formosa.<\/p>\n<footer><strong>R\u00e9f\u00e9rences v\u00e9rifi\u00e9es :<\/strong><\/p>\n<ul class=\"sources\">\n<li><a href=\"https:\/\/pubs.rsc.org\/en\/Content\/ArticleLanding\/2022\/EW\/D2EW00185C\" target=\"_blank\" rel=\"noopener\">Etude des eaux de surface et des eaux us\u00e9es de Beira Baixa<\/a><\/li>\n<li><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/25702148\/\" target=\"_blank\" rel=\"noopener\">Impact environnemental de la mine Panasqueira<\/a><\/li>\n<li><a href=\"https:\/\/doi.org\/10.3390\/min13040497\" target=\"_blank\" rel=\"noopener\">Etude de contamination de la mine de Regoufe<\/a><\/li>\n<li><a href=\"https:\/\/www.researchgate.net\/publication\/272825187_Sistemas_Aquiferos_de_Portugal_Continental_vol_I\" target=\"_blank\" rel=\"noopener\">Syst\u00e8mes aquif\u00e8res portugais<\/a><\/li>\n<\/ul>\n<\/footer>\n<\/section>\n\t<\/div>\n<\/div>\n\n\n\n\n\t\t\t<\/div> \n\t\t<\/div>\n\t<\/div> \n<\/div><\/div>","protected":false},"excerpt":{"rendered":"Beira Baixa geology: how regional rocks shape water, soil and landscape The geology of Beira Baixa influences everything from water quality to soil fertility. This overview explains the key rock...","protected":false},"author":7,"featured_media":8066,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[45,46,207,324],"tags":[331,158,221,184],"class_list":["post-8062","post","type-post","status-publish","format-standard","has-post-thumbnail","category-eternum","category-noticias","category-region","category-research-science","tag-beira-baixa-geology","tag-beira-baixa-region","tag-eternum-ebrietas","tag-portugal"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.8 (Yoast SEO v25.8) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Eternum Ebrietas Beira Baixa Geology |<\/title>\n<meta name=\"description\" content=\"Beira Baixa geology shapes water quality, mineral content and aquifer sensitivity in the region around Sobreira Formosa.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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