{"id":4317,"date":"2023-12-05T16:59:52","date_gmt":"2023-12-05T15:59:52","guid":{"rendered":"https:\/\/fuveau.net\/?p=4317"},"modified":"2023-12-29T15:15:04","modified_gmt":"2023-12-29T14:15:04","slug":"un-rapport-sur-les-mines","status":"publish","type":"post","link":"https:\/\/fuveau.net\/index.php\/2023\/12\/05\/un-rapport-sur-les-mines\/","title":{"rendered":"Un rapport sur les mines"},"content":{"rendered":"\n<p><strong>&#8211; Soci\u00e9t\u00e9 de statistique de Marseille. Tome 4 &#8211; 1840\u00a0<\/strong><\/p>\n\n\n\n<p><strong>La d\u00e9couverte de l&rsquo;importance des lignites est une des gloires de Marseille. Parmi les d\u00e9partements les plus grands producteurs du charbon, celui des Bouches-du-Rh\u00f4ne s&rsquo;est \u00e9lev\u00e9 au cinqui\u00e8me rang, uniquement par ses produits en lignite. Il y a quatre-vingts ans environ , les savonneries et les verreries avaient \u00e9puis\u00e9 les derniers restes de v\u00e9g\u00e9tation qui couvraient nos collines, quand , aupr\u00e8s de Fuveau, furent entreprises les premi\u00e8res extractions d&rsquo;un combustible qui vint alimenter les foyers de nos industriels. La facile inflammation du lignite, ses longs jets de flamme, le rendaient \u00e9minemment propre \u00e0 remplacer le bois. Mais on ne s&rsquo;\u00e9tait gu\u00e8re appliqu\u00e9 depuis \u00e0 surmonter les inconv\u00e9nients qu&rsquo;il pr\u00e9sente lorsqu&rsquo;on veut \u00e9tendre ses services \u00e0 tous ceux que la houille peut rendre. On ne savait ni utiliser ses d\u00e9bris dans les fours \u00e0 chaux , ni les transformer en coke propre au travail du fer. Toutes les difficult\u00e9s que pr\u00e9sentait la confection des chaux ordinaires et hydrauliques par le lignite viennent d&rsquo;\u00eatre vaincues, quelques modifications dans la forme et la conduite des fours ont suffi pour amener ce r\u00e9sultat. De pareils succ\u00e8s attendent ceux qui s&rsquo;appliqueront \u00e0 distiller le lignite pour en obtenir le gaz lumineux ou \u00e0 l&#8217;employer \u00e0 travailler le fer. Quelques modifications dans les formes des fourneaux et la conduite des op\u00e9rations, l&rsquo;injection de l&rsquo;air chaud qui compense le calorique perdu par la vaporisation d&rsquo;une trop grande quantit\u00e9 de mati\u00e8res volatiles&nbsp; permettront de r\u00e9soudre ces questions. Tout ce que font la houille et le bois, le lignite peut le donner.<br>Les parties les plus alt\u00e9r\u00e9es du lignite peuvent heureusement servir \u00e0 l&rsquo;agriculture. Les propri\u00e9t\u00e9s d\u00e9sinfectantes du&nbsp; lignite de Coudoux, nous ont paru partag\u00e9es par tous les lignites d\u00e9compos\u00e9s ; ce qui \u00e9tait un obstacle ou une perte dans les parties alt\u00e9r\u00e9es des couches pourra ainsi devenir une source de richesses plus pr\u00e9cieuses encore que celle de l&rsquo;industrie.<br>Enfin , les parties des couches de lignite o\u00f9 le soufre est si abondant qu&rsquo;elles s&rsquo;enflamment spontan\u00e9ment, deviendront sans doute dans peu de temps la source de grandes fabrications d&rsquo;acide sulfurique ou, au moins , de sulfate de fer. Alors nos mines et nos salines nous donneront tous les \u00e9l\u00e9ments de la fabrication de la soude.<br>Les mines de lignite qui environnent Marseille&nbsp; ont donc encore de grands services \u00e0 ajouter \u00e0 tous ceux qu&rsquo;elles ont rendus : leur masse est-elle en rapport avec leur utilit\u00e9 ? Voyons quelle est la richesse du bassin sous lequel elles s&rsquo;\u00e9tendent ? 7 couches exploit\u00e9es dans la vall\u00e9e de l&rsquo;Arc s&rsquo;\u00e9tendent, depuis l&rsquo;origine, vers Trets et Pourcieux jusqu&rsquo; \u00e0 l&#8217;embouchure de la Fare \u00e0 Gignac.<br>Ces mines distribu\u00e9es sur une zone \u00e9paisse de 143 m\u00e8tres , ont une \u00e9paisseur ensemble de 7 m\u00e8tres 45 cent., qui diminu\u00e9e de toutes les veines de charbon trop terreux se r\u00e9duisent \u00e0 3 m\u00e8tres 84 centim\u00e8tres de bon charbon.<\/strong><strong>Outre cette zone, nous avons d\u00e9couvert une zone de couches inf\u00e9rieures donnant sur trois couches une \u00e9paisseur de pr\u00e8s de 2 m\u00e8tres de charbon.<br>Enfin , il est d&rsquo;autres couches plus importantes dans une zone sup\u00e9rieure. Nous calculons ainsi que la quantit\u00e9 de charbon existant dans les couches exploit\u00e9es, est de 4608000 tonnes par kilom\u00e8tre carr\u00e9, moiti\u00e9 en charbon pour foyers , moiti\u00e9 en mines et charbons alt\u00e9r\u00e9s pour l&rsquo;agriculture et les fours \u00e0 chaux.<\/strong><strong>En admettant que les exploitations ne soient jamais port\u00e9es au-del\u00e0 de 600 m\u00e8tres de profondeur, on trouve que la superficie exploitable de 430 kilom\u00e8tres carr\u00e9s, pourra fournir plus de 200000 tonnes par an , pendant 4730 ans.<\/strong><strong>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Int\u00e9ressant aussi ce rapport de l&rsquo;intendant des gal\u00e8res Arnoul qui nous apprend que le charbon de Fuveau \u00e9tait utilis\u00e9&nbsp; pour chauffer les gal\u00e8res.<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"343\" height=\"294\" src=\"https:\/\/fuveau.net\/wp-content\/uploads\/2023\/12\/CaptureARNOUL-1.jpg\" alt=\"\" class=\"wp-image-4318\" srcset=\"https:\/\/fuveau.net\/wp-content\/uploads\/2023\/12\/CaptureARNOUL-1.jpg 343w, https:\/\/fuveau.net\/wp-content\/uploads\/2023\/12\/CaptureARNOUL-1-300x257.jpg 300w\" sizes=\"auto, (max-width: 343px) 100vw, 343px\" \/><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"341\" height=\"526\" src=\"https:\/\/fuveau.net\/wp-content\/uploads\/2023\/12\/capt_charbon-1.jpg\" alt=\"\" class=\"wp-image-4319\" srcset=\"https:\/\/fuveau.net\/wp-content\/uploads\/2023\/12\/capt_charbon-1.jpg 341w, https:\/\/fuveau.net\/wp-content\/uploads\/2023\/12\/capt_charbon-1-194x300.jpg 194w\" sizes=\"auto, (max-width: 341px) 100vw, 341px\" \/><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>&#8211; Soci\u00e9t\u00e9 de statistique de Marseille. Tome 4 &#8211; 1840\u00a0 La d\u00e9couverte de l&rsquo;importance des lignites est une des gloires de Marseille. Parmi les d\u00e9partements les plus grands producteurs du charbon, celui des Bouches-du-Rh\u00f4ne s&rsquo;est \u00e9lev\u00e9 au cinqui\u00e8me rang, uniquement par ses produits en lignite. Il y a quatre-vingts ans environ , les savonneries et [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","iawp_total_views":12,"footnotes":""},"categories":[28,25],"tags":[],"class_list":["post-4317","post","type-post","status-publish","format-standard","hentry","category-la_mine","category-les-metiers","post-preview"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Un rapport sur les mines - Petites et grandes Histoires de Fuveau<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fuveau.net\/index.php\/2023\/12\/05\/un-rapport-sur-les-mines\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Un rapport sur les mines - Petites et grandes Histoires de Fuveau\" \/>\n<meta property=\"og:description\" content=\"&#8211; Soci\u00e9t\u00e9 de statistique de Marseille. Tome 4 &#8211; 1840\u00a0 La d\u00e9couverte de l&rsquo;importance des lignites est une des gloires de Marseille. Parmi les d\u00e9partements les plus grands producteurs du charbon, celui des Bouches-du-Rh\u00f4ne s&rsquo;est \u00e9lev\u00e9 au cinqui\u00e8me rang, uniquement par ses produits en lignite. Il y a quatre-vingts ans environ , les savonneries et [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/fuveau.net\/index.php\/2023\/12\/05\/un-rapport-sur-les-mines\/\" \/>\n<meta property=\"og:site_name\" content=\"Petites et grandes Histoires de Fuveau\" \/>\n<meta property=\"article:published_time\" content=\"2023-12-05T15:59:52+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-12-29T14:15:04+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/fuveau.net\/wp-content\/uploads\/2023\/12\/CaptureARNOUL-1.jpg\" \/>\n<meta name=\"author\" content=\"Jean-Fran\u00e7ois ROUBAUD\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jean-Fran\u00e7ois ROUBAUD\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/fuveau.net\\\/index.php\\\/2023\\\/12\\\/05\\\/un-rapport-sur-les-mines\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/fuveau.net\\\/index.php\\\/2023\\\/12\\\/05\\\/un-rapport-sur-les-mines\\\/\"},\"author\":{\"name\":\"Jean-Fran\u00e7ois ROUBAUD\",\"@id\":\"https:\\\/\\\/fuveau.net\\\/#\\\/schema\\\/person\\\/2334ed46226babe19f16b8c36a23e39d\"},\"headline\":\"Un rapport sur les mines\",\"datePublished\":\"2023-12-05T15:59:52+00:00\",\"dateModified\":\"2023-12-29T14:15:04+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/fuveau.net\\\/index.php\\\/2023\\\/12\\\/05\\\/un-rapport-sur-les-mines\\\/\"},\"wordCount\":678,\"publisher\":{\"@id\":\"https:\\\/\\\/fuveau.net\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/fuveau.net\\\/index.php\\\/2023\\\/12\\\/05\\\/un-rapport-sur-les-mines\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/fuveau.net\\\/wp-content\\\/uploads\\\/2023\\\/12\\\/CaptureARNOUL-1.jpg\",\"articleSection\":[\"La mine\",\"Les m\u00e9tiers\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/fuveau.net\\\/index.php\\\/2023\\\/12\\\/05\\\/un-rapport-sur-les-mines\\\/\",\"url\":\"https:\\\/\\\/fuveau.net\\\/index.php\\\/2023\\\/12\\\/05\\\/un-rapport-sur-les-mines\\\/\",\"name\":\"Un rapport sur les mines - 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Tome 4 &#8211; 1840\u00a0 La d\u00e9couverte de l&rsquo;importance des lignites est une des gloires de Marseille. Parmi les d\u00e9partements les plus grands producteurs du charbon, celui des Bouches-du-Rh\u00f4ne s&rsquo;est \u00e9lev\u00e9 au cinqui\u00e8me rang, uniquement par ses produits en lignite. Il y a quatre-vingts ans environ , les savonneries et\u2026","_links":{"self":[{"href":"https:\/\/fuveau.net\/index.php\/wp-json\/wp\/v2\/posts\/4317","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fuveau.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fuveau.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fuveau.net\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/fuveau.net\/index.php\/wp-json\/wp\/v2\/comments?post=4317"}],"version-history":[{"count":1,"href":"https:\/\/fuveau.net\/index.php\/wp-json\/wp\/v2\/posts\/4317\/revisions"}],"predecessor-version":[{"id":4320,"href":"https:\/\/fuveau.net\/index.php\/wp-json\/wp\/v2\/posts\/4317\/revisions\/4320"}],"wp:attachment":[{"href":"https:\/\/fuveau.net\/index.php\/wp-json\/wp\/v2\/media?parent=4317"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fuveau.net\/index.php\/wp-json\/wp\/v2\/categories?post=4317"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fuveau.net\/index.php\/wp-json\/wp\/v2\/tags?post=4317"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}