Abstract
We describe an improved nondestructive technique for density measurement based on gamma-ray absorption that permits construction of high-resolution density profiles of marine sediment cores. The system is capable of resolving vertical density variations with a spatial resolution of 4 mm and absolute accuracy of ± 1%. Comparison with conventional density determination on samples confirms the absolute accuracy. In addition to standard vertical profiling, a core rotation option is included to measure density as a function of rotation angle. This allows the quantification of the variability of density within a layer and detection of inhomogenities like icerafted debris or biogenic structures.
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Gerland, S., Villinger, H. Nondestructive density determination on marine sediment cores from gamma-ray attenuation measurements. Geo-Marine Letters 15, 111–118 (1995). https://doi.org/10.1007/BF01275415
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DOI: https://doi.org/10.1007/BF01275415