In-situ silicon isotopes in mantle wedge serpentinites - a new proxy for slab dehydration reactions

Sonja Geilert , Elmar Albers , Daniel A. Frick , Christian T. Hansen & Friedhelm von Blanckenburg
The Mariana forearc provides a unique natural laboratory to study slab dehydration in an active subduction zone by its deep-rooted mud volcanism. To test if mantle wedge serpentinites would record the source fluid composition and thus the dehydration reactions in the slab, we investigated silicon (Si) isotopic compositions (δ30Si) in serpentine veins by in-situ femtosecond laser ablation ICP mass spectrometry. Our samples were recovered during IODP Expedition 366 and originate from three mud volcanoes that...
This data repository is not currently reporting usage information. For information on how your repository can submit usage information, please see our documentation.