U-238-Th-230 constraints on mantle upwelling and plume-ridge interaction along the Reykjanes Ridge

• Main Authors: Peate, D W, Hawkesworth, Chris, van Calsteren, P W, Taylor, R N, Murton, B J
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2001
• Subjects: mid-ocean ridge basalts disequilibrium; uranium; melting; Reykjanes Ridge; Iceland; upwelling; U-SERIES DISEQUILIBRIA; MID-ATLANTIC RIDGE; U-238 TH-230 DISEQUILIBRIUM; KERMADEC ISLAND-ARC; MIDOCEAN RIDGES; RATES BENEATH; BASALTS; TH; PETROGENESIS; Mid-Atlantic Ridge; Reykjanes
• Online Access: https://risweb.st-andrews.ac.uk/portal/en/researchoutput/u238th230-constraints-on-mantle-upwelling-and-plumeridge-interaction-along-the-reykjanes-ridge(37aaae48-8cc7-46e6-b923-1055098c7a26).html

U-238-Th-230-Ra-226 disequilibria data are presented for dredged glasses from the slow-spreading, plume-influenced Reykjanes Ridge, and lavas from the Reykjanes Peninsula, Iceland. Southern Reykjanes Ridge samples (57.7 degrees -58.8 degreesN), identified as 'zero-age' (i.e. <8 ka) from...