Plumes, Plums, Processes: Useries constraints on Magma Genesis

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Plumes, Plums, Processes U-series constraints on
Magma Genesis

• Ken Sims
• Don DePaolo, Mike Murrell, Steve Goldstein, Peter
  Kelemen, Mathew Jull, Craig Lundstrom, Tim
  Elliott, Marc Spiegelman Bernard Bourdon, Pierre
  Gauthier, Frank Tepley, Jeff Standish, Janne
  Blichert-Toft, Dan Fornari, Mike Perfit, Francis
  Albarede, Scott Baldridge, Phil Kyle, Mark
  Reagan, Rob Sohn, Lary Ball, Graham Layne,
  Johannes Schwieters

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Hawaiian Plume
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MORB Petrogenesis
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EPR Ridge Crest Construction
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Pillow Front 3 (Sample 7)
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Conclusions

• U-series can place constraints on timescales of
  magmatic processes from mantle upwelling to magma
  recharge and degassing (when considered in
  context of other chemical and isotopic data)
• U-Th place important constraints on depth of
  melting