{"id":5771,"date":"2020-05-21T13:56:27","date_gmt":"2020-05-21T13:56:27","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/?p=5771"},"modified":"2020-05-21T13:58:27","modified_gmt":"2020-05-21T13:58:27","slug":"patrimoine-geologique-du-limousin","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2020\/05\/21\/patrimoine-geologique-du-limousin\/","title":{"rendered":"Patrimoine g\u00e9ologique du Limousin"},"content":{"rendered":"<p>Un livre fort int\u00e9ressant\u00a0: Patrimoine g\u00e9ologique du Limousin &#8211; De la roche au paysage<\/p>\n<p>par H. Bril et J.P. Floc\u2019h<\/p>\n<p>Pulim, Limoges, 2018, 1 vol. rel. 18 x 24 cm, 244 p., ill., ISBN : 9782842877859. Prix : 25 \u20ac.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-5775\" src=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2020\/05\/Limousin.couv_.low_-331x450.jpg\" alt=\"\" width=\"331\" height=\"450\" srcset=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2020\/05\/Limousin.couv_.low_-331x450.jpg 331w, https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2020\/05\/Limousin.couv_.low_-752x1024.jpg 752w, https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2020\/05\/Limousin.couv_.low_-768x1045.jpg 768w, https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2020\/05\/Limousin.couv_.low_-1128x1536.jpg 1128w, https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2020\/05\/Limousin.couv_.low_.jpg 1417w\" sizes=\"auto, (max-width: 331px) 100vw, 331px\" \/><\/p>\n<p>J\u2019en ai \u00e9crit l\u2019analyse dans le num\u00e9ro 153, de mars 2020, p. 53, de la revue G\u00e9ochronique (une co-\u00e9dition BRGM &#8211; Bureau de Recherches G\u00e9ologiques et Mini\u00e8res et SGF &#8211; Soci\u00e9t\u00e9 G\u00e9ologique de France)\u00a0:<\/p>\n<p>Voici un livre de 244 pages qui va vous faire aimer le Limousin, partie ouest du Massif Central, et sa g\u00e9ologie.<\/p>\n<p>Dans un premier temps, le Limousin est pr\u00e9sent\u00e9 et replac\u00e9 dans le cadre de l\u2019Europe et plus pr\u00e9cis\u00e9ment celui de la cha\u00eene varisque, form\u00e9e puis \u00e9rod\u00e9e avant d\u2019\u00eatre \u00e0 nouveau soulev\u00e9e lors de la surrection des Pyr\u00e9n\u00e9es et des Alpes. Son histoire g\u00e9ologique est expliqu\u00e9e (30 pages) \u00e0 l\u2019aide de nombreux sch\u00e9mas, cartes, coupes.<\/p>\n<p>La visite d\u2019une s\u00e9lection de soixante sites g\u00e9ologiques remarquables, dans les trois d\u00e9partements de la Corr\u00e8ze, de la Creuse et de la Haute-Vienne, constitue la partie principale du livre (156 pages). De la description des roches et la compr\u00e9hension des processus g\u00e9ologiques, d\u00e9coule l\u2019interpr\u00e9tation des paysages qui \u00e9voluent sans cesse.<\/p>\n<p>Chaque site est pr\u00e9sent\u00e9 sur une double page. Pour chacun\u00a0: la localisation pr\u00e9cise (coordonn\u00e9es GPS), une description d\u00e9taill\u00e9e, une photo principale et une ou deux photos annexes, un original curseur chronologique (qui affiche les dates de mise en place, de mise \u00e0 l\u2019affleurement, d\u2019alt\u00e9ration, d\u2019\u00e9rosion, etc.), le signalement d\u2019autres curiosit\u00e9s des environs, les routes et chemins \u00e0 prendre pour s\u2019y rendre.<\/p>\n<p>Sans surprise, l\u2019\u00e8re primaire (avant et apr\u00e8s l\u2019orogen\u00e8se varisque) constitue la majorit\u00e9 des affleurements, o\u00f9 les roches plutoniques et m\u00e9tamorphiques (la fameuse s\u00e9rie Brive-Tulle\u00a0!) du socle cristallin dominent largement. D\u2019autres sont dat\u00e9s des \u00e8res secondaire et tertiaire, correspondant plut\u00f4t \u00e0 la couverture s\u00e9dimentaire. Soit l\u2019ensemble des 500 derniers millions d\u2019ann\u00e9es de l\u2019histoire g\u00e9ologique r\u00e9gionale. En filigrane, les ressources utiles voire n\u00e9cessaires \u00e0 nos soci\u00e9t\u00e9s humaines, sont \u00e9voqu\u00e9es\u00a0: eaux souterraines, thermalisme, exploitations mini\u00e8res (kaolin, uranium, or), pierres ornementales (gr\u00e8s de Collonges-la-Rouge), granulats.<\/p>\n<p><!--more--><\/p>\n<p>Au fil des pages, on croise des lieux \u00e9tonnants parfois m\u00eame un peu myst\u00e9rieux \u00ab\u00a0qui valent le d\u00e9tour sinon le voyage\u00a0\u00bb\u00a0: un m\u00e9andre de la Creuse, une cascade, une r\u00e9surgence, l\u2019astrobl\u00e8me de Rochechouart, la Pierre branlante de Boscartus, le Rocher des F\u00e9es, la Rigole du diable, le Moulin de la Folie, les colonnades volcaniques de Bort-les-Orgues, les collines leucogranitiques arrondies \u00ab\u00a0en demi-globes\u00a0\u00bb des Mon\u00e9di\u00e8res\u2026 Un riche patrimoine \u00e0 prot\u00e9ger.<\/p>\n<p>Merci \u00e0 Hubert Bril et \u00e0 Jean-Pierre Floc\u2019h de nous proposer un livre de grande qualit\u00e9, sur papier glac\u00e9, illustr\u00e9 de tr\u00e8s belles photos en couleur, pour un prix vraiment modique.<\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>Un livre fort int\u00e9ressant\u00a0: Patrimoine g\u00e9ologique du Limousin &#8211; De la roche au paysage par H. Bril et J.P. Floc\u2019h Pulim, Limoges, 2018, 1 vol. rel. 18 x 24 cm, 244 p., ill., ISBN : 9782842877859. Prix : 25 \u20ac. J\u2019en ai \u00e9crit l\u2019analyse dans le num\u00e9ro 153, de mars 2020, p. 53, de la &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2020\/05\/21\/patrimoine-geologique-du-limousin\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Patrimoine g\u00e9ologique du Limousin<\/span>  <span class=\"meta-nav\">&rarr;<\/span><\/a><!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[6,7],"tags":[21,403,2019,2020,1089,2021,2022,770],"class_list":["post-5771","post","type-post","status-publish","format-standard","hentry","category-actualites","category-livres","tag-bardintzeff","tag-brgm","tag-bril","tag-floch","tag-geochronique","tag-limousin","tag-patrimoine","tag-sgf"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Patrimoine g\u00e9ologique du Limousin, par Jacques-Marie Bardintzeff<\/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:\/\/blogs.futura-sciences.com\/bardintzeff\/2020\/05\/21\/patrimoine-geologique-du-limousin\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Patrimoine g\u00e9ologique du Limousin, par Jacques-Marie Bardintzeff\" \/>\n<meta property=\"og:description\" content=\"Un livre fort int\u00e9ressant\u00a0: Patrimoine g\u00e9ologique du Limousin &#8211; De la roche au paysage par H. Bril et J.P. Floc\u2019h Pulim, Limoges, 2018, 1 vol. rel. 18 x 24 cm, 244 p., ill., ISBN : 9782842877859. Prix : 25 \u20ac. 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