Core properties of permafrost cores collected in Ward Hunt Island between 2011 and 2016

Cores where collected between 2012 and 2015 using a portable earth auger modified to fit a 8.25 to 10.8 cm core barrel. Cores where kept frozen at -20°C in the field and brought back to the Geocryolab (University of Montreal) for analysis. In a cold room, cores where cleaned of the coring mud, photographed, described and subsampled in 5-15 cm core, and then sealed in vacuumed plastic bags. Core size could not be kept consistent as high gravel content prevented us from cutting the cores, which had to be broken using a hammer and chisel. Volumetric ice content was determined using a water displacement method (see Verpaelst et al. 2017 in Arctic Science for details). Cores were then thawed in their vaccuum sealed bag, and aliquots were collected and filtered through 0.22 micron PVDF filters into plastic bottles for ion and isotopic analysis. Water from the cores was also used to measure pH and electrical conductivity (corrected to 25°C). Water isotopic signature was measured at the Environmental Variability and Extremes Laboratory in Queen's University using a Los Gatos water isotope analyser. Dataset contains the Name of the sample, the Median depth (cm), Bulk density (g/cm3), pH, Specific Conductivity (micro_S/cm), Volumetric ice content (VIC %) and gravimetric ice content (GIC %). A second set includes the isotopic content (H2O) of these cores. It shows d18O, dD2, std18O, stdD, D_excess, date and time of sampling, and sample name