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Sediment porewater properties data from Mercer Subglacial Lake Data DOI: https://doi.org/10.15784/601664 Cite as Dore, J., Michaud, A., Science Team, S., Skidmore, M., Steigmeyer, A., & Tranter, M. (2023) "Sediment porewater properties data from Mercer Subglacial Lake" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/601664. AMD - DIF Record(s) USAP-1543537_1 Abstract This dataset contains measurements of sediment porewater properties from cores collected from Mercer Subglacial Lake by the SALSA project. Included are: specific conductance; water stable isotopes (δ2H and δ18O); dissolved gases (methane and its stable isotopes δ13C and δ2H, ethylene, and ethane); and major anions and cations. Creator(s): Dore, John; Michaud, Alexander; Skidmore, Mark; Tranter, Martyn; Steigmeyer, August; Science Team, SALSA Date Created: 2023-02-03 Repository: USAP-DC (current) License: Creative Commons Attribution Only v4.0 Generic [CC BY 4.0] Spatial Extent(s) West: -149.50134, East: -149.50134, South: -84.640287, North: -84.640287 Temporal Extent(s) Start: 2018-12-30 - End: 2019-01-01 Award(s) NSF 1543537 Version: 1 Related Project(s) Collaborative Research: Subglacial Antarctic Lakes Scientific Access (SALSA): Integrated Study of Carbon Cycling in Hydrologically-active Subglacial Environments References Hawkings, J. R., Skidmore, M. L., Wadham, J. L., Priscu, J. C., Morton, P. L., … Hatton, J. E. (2020). Enhanced trace element mobilization by Earth’s ice sheets. Proceedings of the National Academy of Sciences, 117(50), 31648–31659. (doi:10.1073/pnas.2014378117) Priscu, J., Kalin, J., Winans, J., Campbell, T., Siegfried, M., Skidmore, M., . . . Elsworth, C. (2021). Scientific access into Mercer Subglacial Lake: Scientific objectives, drilling operations and initial observations. Annals of Glaciology, 62(85-86), 340-352. (doi:10.1017/aog.2021.10) Davis, C.L., Venturelli, R.A., Michaud, A.B. et al. Biogeochemical and historical drivers of microbial community composition and structure in sediments from Mercer Subglacial Lake, West Antarctica. ISME COMMUN. 3, 8 (2023). https://doi.org/10.1038/s43705-023-00216-w (doi:10.1038/s43705-023-00216-w) Michaud, A., Dore, J., Achberger, A. et al. Microbial oxidation as a methane sink beneath the West Antarctic Ice Sheet. Nature Geosci 10, 582–586 (2017). https://doi.org/10.1038/ngeo2992 (doi:10.1038/ngeo2992) Keywords Antarctica Gas Geochemistry Glacier Glaciology Mercer Subglacial Lake Mercer Subglacial Lake Methane SALSA Sediment Core West Antarctic Ice Sheet