/* DATA DESCRIPTION: Citation: Gose, Jürgen; Schmädicke, Esther; Stachel, Thomas (2025): Water in eclogite and pyroxenite xenoliths from the bottom 100 km of the Slave Craton (Canada) mantle root [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.975214 Abstract: 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. Keyword(s): Diavik diamond mine (Canada); eclogite; FTIR spectroscopy; pyroxenite; structural water Supplement to: 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 References: 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 Coverage: LATITUDE: 64.500000 * LONGITUDE: -110.230000 Event(s): DDM (Diavik Diamond Mine) * LATITUDE: 64.500000 * LONGITUDE: -110.230000 * LOCATION: Lac de Gras, Canada * METHOD/DEVICE: Outcrop sample (OUTCROP) * COMMENT: Eclogite and peridotite xenoliths from lower continental crust Parameter(s): File content (Content) * PI: Gose, Jürgen (juergen.gose@fau.de) Office Open XML Workbook (XLSX) * PI: Gose, Jürgen (juergen.gose@fau.de) Office Open XML Workbook (File Size) [Bytes] (XLSX (Size)) * PI: Gose, Jürgen (juergen.gose@fau.de) License: Creative Commons Attribution 4.0 International (CC-BY-4.0) (URI: https://creativecommons.org/licenses/by/4.0/) Status: Curation Level: Basic curation (URI: https://wiki.pangaea.de/wiki/Curation_levels) Size: 8 data points Files: All files referred to in data matrix can be downloaded in one go as ZIP or TAR (PANGAEA user account required). To download single files, use the filename from data matrix appended to "https://download.pangaea.de/dataset/975214/files/". */ Content XLSX XLSX (Size) [Bytes] Campaign data DDM_-_Campaign_Data.xlsx 15.3 kBytes DDM-Microprobe analyses: three tables, containing mean values of element analyses for garnet, clinopyroxene, and orthopyroxene, resp. DDM_-_Microprobe_analyses.xlsx 45.9 kBytes DDM-ICP-MS analyses: two tables, containing mean values of trace elements for garnet and clinopyroxene. DDM_-_ICP-MS_analyses.xlsx 34 kBytes DDM-FTIR spectra: two tables, containing total absorbance data of unpolarized IR measurements for garnet and clinopyroxene. DDM_-_FTIR_spectra_total_absorbances.xlsx 944.9 kBytes