{"id":22929,"date":"2022-07-07T15:17:56","date_gmt":"2022-07-07T14:17:56","guid":{"rendered":"https:\/\/www.innovationnewsnetwork.com\/?p=22929"},"modified":"2022-07-07T15:17:56","modified_gmt":"2022-07-07T14:17:56","slug":"researchers-examine-deep-sea-mining-rare-earth-elements","status":"publish","type":"post","link":"https:\/\/www.innovationnewsnetwork.com\/researchers-examine-deep-sea-mining-rare-earth-elements\/22929\/","title":{"rendered":"Researchers examine deep sea mining for rare earth elements"},"content":{"rendered":"

Researchers examine the new possibility of deep sea mining for rare earth elements to combat supply chain vulnerabilities.<\/h2>\n

Rare earth elements (REEs), such as lanthanum and cerium, are vital components in many everyday and emerging technologies, including smartphones and clean energy<\/a>. However, due to concerns about the environmental impact of REE extraction and supply chain vulnerabilities (as China dominates the REE market, accounting for\u00a057.5% of production in 2020<\/a>), researchers are investigating potential locations to source REEs.<\/p>\n

Deep sea mining for rare earth elements<\/h3>\n

Pelagic, or deep sea sediments, are now being explored as a significant potential source of REEs for future exploitation. In a recent\u00a0paper\u00a0published in the open access journal\u00a0Chemical Geology<\/em><\/a>, a team of Chinese and German researchers extracted, analysed, and quantified REEs discovered in the pelagic sediments of the Tiki Basin in the Southeast Pacific and the Central Indian Ocean Basin.<\/p>\n

Analysing REE<\/h3>\n

The research team utilised micro-scale methods to analyse the geochemical and mineralogical characteristics of REEs bound to two pelagic carriers: Ca-phosphate, predominantly in the form of bioapatite fossils, and Fe-Mn (oxyhydr) oxides, as micronodule.<\/p>\n

Their methods included scanning electron microscope, x-ray diffraction, electron probe micro-analyser, and laser ablation-inductively coupled plasma mass spectrometry.<\/p>\n

REE sample results<\/h3>\n

The results demonstrated that Ca-phosphate has a dominant role in hosting REEs in the deep sea environments studied, accounting for 69.3\u201389.4% of the total. \u201cThe percentages of REE controlled by Fe-Mn (oxyhydr)oxides, mainly as micronodule, are moderate (8.2% to 22.0%), except Ce (70.0\u201380.5%),\u201d observed the researchers.<\/p>\n

The study also revealed differences in the quantities of REEs discovered in samples taken from the Tiki Basin and the Central Indian Ocean Basin. This indicates that multiple factors \u2014 including the productivity of overlying seawater, water depth relative to carbonate compensation depth, and hydrothermal vent input \u2014 may be influencing REE enrichment in pelagic sediments.<\/p>\n","protected":false},"excerpt":{"rendered":"

Researchers examine the new possibility of deep sea mining for rare earth elements to combat supply chain vulnerabilities. Rare earth elements (REEs), such as lanthanum and cerium, are vital components in many everyday and emerging technologies, including smartphones and clean energy. However, due to concerns about the environmental impact of REE extraction and supply chain […]<\/p>\n","protected":false},"author":19,"featured_media":22930,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[24204],"tags":[763,24308],"acf":[],"yoast_head":"\nResearchers examine deep sea mining for rare earth elements<\/title>\n<meta name=\"description\" content=\"Researchers examine the new possibility of deep sea mining for rare earth elements to combat supply chain vulnerabilities.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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