{"id":21693,"date":"2020-09-22T13:02:58","date_gmt":"2020-09-22T19:02:58","guid":{"rendered":"https:\/\/www.tofwerk.com\/?p=21693"},"modified":"2020-09-22T13:02:58","modified_gmt":"2020-09-22T19:02:58","slug":"icptof-zircon-geochronology-dating","status":"publish","type":"post","link":"https:\/\/www.tofwerk.com\/ko\/icptof-zircon-geochronology-dating\/","title":{"rendered":"icpTOF Excels in U-Pb Zircon Geochronology Dating"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Time-Of-Flight ICP-MS Laser Ablation Zircon Geochronology: Assessment and Comparison Against Quadrupole ICP-MS<\/h2>\n\n\n\n<p>Thompson, J.; Danyushevsky, L.; Borovinskaya, O.; Tanner, M.\u00a0<br><em><a href=\"https:\/\/pubs.rsc.org\/en\/journals\/journalissues\/ja#!recentarticles&amp;adv\" target=\"_blank\" rel=\"noreferrer noopener\">\ubd84\uc11d \uc6d0\uc790 \ubd84\uad11\ud559 \uc800\ub110<\/a>,\u00a0<\/em>2020<br><a href=\"https:\/\/doi.org\/10.1039\/D0JA00252F\" target=\"_blank\" rel=\"noreferrer noopener\">DOI: 10.1039\/d0ja00252f<\/a><\/p>\n\n\n\n<p>Uranium\u2013lead (U-Pb) dating is an established radiometric dating method in Earth sciences. The method is commonly applied to the mineral zircon which incorporates U and Th but rejects Pb during crystallization. The method relies on two decay series; <sup>238<\/sup>U to <sup>206<\/sup>Pb with a half-life of 4.47 billion years, and <sup>235<\/sup>U to <sup>207<\/sup>Pb with a half-life of 710 million years. In U-Pb dating of zircon by LA-ICP-MS, there is a need for high precision and accurate measurements of these two elements and their isotopes.<\/p>\n\n\n\n<p>This study by Thompson et al. compares U-Pb zircon dating by laser ablation coupled to a time-of-flight inductively coupled plasma mass spectrometer (LA-ICP-TOFMS) and a quadrupole mass spectrometer (LA-ICP-QMS). The results show that both ICP-MS types produce similar levels of precision and accuracy for most U-Pb ages in zircon, especially if the <sup>235<\/sup>U decay series is considered. The advantage of TOFMS is that trace element concentrations (e.g. rare earth elements) in zircon are measured simultaneously along with the U-Pb isotope data.<\/p>","protected":false},"excerpt":{"rendered":"<p>Time-Of-Flight ICP-MS Laser Ablation Zircon Geochronology: Assessment and Comparison Against Quadrupole ICP-MS Thompson, J.; Danyushevsky, L.; Borovinskaya, O.; Tanner, M.\u00a0Journal of Analytical Atomic Spectrometry,\u00a02020DOI: 10.1039\/d0ja00252f Uranium\u2013lead (U-Pb) dating is an established radiometric dating method in Earth sciences. The method is commonly applied to the mineral zircon which incorporates U and Th but rejects Pb during &#8230; <a title=\"icpTOF Excels in U-Pb Zircon Geochronology Dating\" class=\"read-more\" href=\"https:\/\/www.tofwerk.com\/ko\/icptof-zircon-geochronology-dating\/\" aria-label=\"icpTOF Excels in U-Pb Zircon Geochronology Dating\uc5d0 \ub300\ud574 \ub354 \uc790\uc138\ud788 \uc54c\uc544\ubcf4\uc138\uc694\">\ub354 \uc77d\uae30<\/a><\/p>","protected":false},"author":3,"featured_media":21695,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[121],"tags":[],"product_notes":[103],"class_list":["post-21693","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-publication","product_notes-icptof"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>icpTOF Excels in U-Pb Zircon Geochronology Dating - 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