PANGAEA_975214 Water in eclogite and pyroxenite xenoliths from the bottom 100 km of the Slave Craton (Canada) mantle root Gose, Jürgen; Schmädicke, Esther; Stachel, Thomas Water in eclogite and pyroxenite xenoliths from the bottom 100 km of the Slave Craton (Canada) mantle root 2025-02-12 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.975214 Investigator Jürgen Gose juergen.gose@fau.de Earth Science File content Office Open XML Workbook Office Open XML Workbook (File Size) geoscientificInformation DDM Diavik Diamond Mine Diavik diamond mine (Canada) eclogite FTIR spectroscopy Outcrop sample pyroxenite structural water Complete 64.5 64.5 -110.23 -110.23 unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 8 data points text/tab-separated-values Schmädicke, Esther; Gose, Jürgen; Stachel, Thomas (2025): Water in Eclogite and Pyroxenite Xenoliths From the Bottom 100 km of the Slave Craton (Canada) Mantle Root. Geochemistry, Geophysics, Geosystems, 26(3), e2024GC011922, https://doi.org/10.1029/2024GC011922 Aulbach, Sonja; Pearson, Norman J; O'Reilly, Suzanne Y; Doyle, Buddy J (2007): Origins of Xenolithic Eclogites and Pyroxenites from the Central Slave Craton, Canada. Journal of Petrology, 48(10), 1843-1873, https://doi.org/10.1093/petrology/egm041

Significant amounts of water can be stored in the mantle in nominally anhydrous minerals (NAMs) such as garnet, olivine, clino- and orthopyroxene as structural OH− ions. Water or, more precisely, hydrogen is incorporated as a trace element in the mineral structure. Subduction is the only conceivable mode to transport water into the mantle. The main goal of this study is to evaluate the water storage and transport capacity of garnet-clinopyroxene xenoliths (eclogite and pyroxenite, built by metamorphic processes during subduction of oceanic crust) and, in turn, the potential of subducted oceanic crust to recycle water into the mantle. For this purpose, 20 kimberlite-hosted xenoliths from the Diavik diamond mine, Canada, were investigated. The location is known for its abundance of well-preserved xenoliths. Previous studies have shown that the composition of garnet and clinopyroxene is highly variable (e.g., Aulbach et al., 2007), which is favorable for our study. Sample parameters, mineral composition, trace elements, and infrared data are listed in the attached tables. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.975214"!

https://doi.org/10.1029/2024GC011922 Water in Eclogite and Pyroxenite Xenoliths From the Bottom 100 km of the Slave Craton (Canada) Mantle Root https://doi.org/10.1093/petrology/egm041 Origins of Xenolithic Eclogites and Pyroxenites from the Central Slave Craton, Canada DIF 9.4 2025-02-12 2026-05-12