<\/p>\n\n\n\n
Le Japon a annonc\u00e9 lundi que des s\u00e9diments contenant des terres rares avaient \u00e9t\u00e9 extraits \u00e0 6.000 m\u00e8tres de profondeur lors d’une mission d’essai nippone en mer.<\/p>\n\n\n\n
Il s’agit selon Tokyo de la premi\u00e8re tentative mondiale visant \u00e0 exploiter des terres rares dans des eaux d’une telle profondeur.<\/p>\n\n\n\n
\u00ab\u00a0Les d\u00e9tails seront analys\u00e9s, notamment la quantit\u00e9 exacte de terres rares contenue\u00a0\u00bb dans l’\u00e9chantillon, a d\u00e9clar\u00e9 Kei Sato, un porte-parole du gouvernement. Il a qualifi\u00e9 la d\u00e9couverte d'\u00a0\u00bbaccomplissement significatif, tant en termes de s\u00e9curit\u00e9 \u00e9conomique que de d\u00e9veloppement maritime\u00a0\u00bb.<\/p>\n\n\n\n
L’\u00e9chantillon a \u00e9t\u00e9 extrait par le navire de recherche japonais Chikyu, qui avait mis le cap mi-janvier vers l’\u00eele japonaise isol\u00e9e de Minami Torishima, dans le Pacifique. Les eaux environnantes sont consid\u00e9r\u00e9es comme potentiellement riches en pr\u00e9cieux minerais.<\/p>\n\n\n\n
Les \u00ab\u00a0terres rares\u00a0\u00bb, 17 \u00e9l\u00e9ments m\u00e9talliques pas particuli\u00e8rement rares mais difficiles et co\u00fbteux \u00e0 extraire, sont essentiels pour des pans entiers de l’\u00e9conomie (automobile, \u00e9nergies renouvelables, num\u00e9rique, d\u00e9fense…), servant \u00e0 la fabrication d’aimants puissants, catalyseurs et composants \u00e9lectroniques. La zone autour de Minami Torishima, situ\u00e9e dans la zone \u00e9conomique exclusive (ZEE) du Japon, contiendrait plus de 16 millions de tonnes de terres rares selon certaines estimations, ce qui en ferait selon le quotidien \u00e9conomique Nikkei le troisi\u00e8me plus grand gisement au monde.<\/p>\n","protected":false},"excerpt":{"rendered":"
Le Japon a annonc\u00e9 lundi que des s\u00e9diments contenant des terres rares avaient \u00e9t\u00e9 extraits \u00e0 6.000 m\u00e8tres de profondeur lors d’une mission d’essai nippone en mer. Il s’agit selon Tokyo de la premi\u00e8re tentative mondiale visant \u00e0 exploiter des terres rares dans des eaux d’une telle profondeur. \u00ab\u00a0Les d\u00e9tails seront analys\u00e9s, notamment la quantit\u00e9 […]<\/p>\n","protected":false},"author":1,"featured_media":103447,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"content-type":"","footnotes":""},"categories":[107],"tags":[],"ppma_author":[163],"class_list":{"0":"post-103446","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-economie"},"authors":[{"term_id":163,"user_id":1,"is_guest":0,"slug":"dknews","display_name":"dknews","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/f56c36580f44a9d8e8535169273499b7dddc82045bcc254bf7d154ff6b485f62?s=96&d=mm&r=g","first_name":"","last_name":"","user_url":"https:\/\/dknews.dz","job_title":"","description":""}],"_links":{"self":[{"href":"https:\/\/dknews.dz\/index.php\/wp-json\/wp\/v2\/posts\/103446","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dknews.dz\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dknews.dz\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dknews.dz\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dknews.dz\/index.php\/wp-json\/wp\/v2\/comments?post=103446"}],"version-history":[{"count":0,"href":"https:\/\/dknews.dz\/index.php\/wp-json\/wp\/v2\/posts\/103446\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dknews.dz\/index.php\/wp-json\/wp\/v2\/media\/103447"}],"wp:attachment":[{"href":"https:\/\/dknews.dz\/index.php\/wp-json\/wp\/v2\/media?parent=103446"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dknews.dz\/index.php\/wp-json\/wp\/v2\/categories?post=103446"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dknews.dz\/index.php\/wp-json\/wp\/v2\/tags?post=103446"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/dknews.dz\/index.php\/wp-json\/wp\/v2\/ppma_author?post=103446"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}