Non-destructive multi-sensor core logging allows rapid imaging, measurement of bulk density and estimation of ice content in permafrost cores

• DOI: 10.5194/egusphere-2023-571
• Publication Date: 2023-05-10T17:14:21Z
• Authors: Joel Pumple; Alistair Monteath; Jordan Harvey; Mahya Roustaei; Alejandro Alvarez; Casey Buchanan; Duane Froese
• Keywords: Ice core

Abstract. Permafrost cores provide physical samples that can be used to measure the characteristics of frozen ground. Measurement core properties, however, are typically destructive and time intensive. In this study, multi-sensor logging (MSCL) is a rapid, high-resolution, non-destructive method image collect properties permafrost cores, allowing visualization cryostructures, measurement bulk density magnetic susceptibility, estimation volumetric ice content. Six with differing were analyzed using MSCL compared established analyses assess potential instrument both in terms accuracy relative rate data acquisition. A calibration procedure presented for gamma ray attenuation from 137Cs source specific materials. This accurately measures over wide range material densities found permafrost. show strong agreement based on discrete sample measurements. Bulk attenuation, along soil measurements different sediment types, estimate The results analyses, illustrating accurate estimates contents digital archive future applications.