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Earth, Planets and Space
Fig. 6 | Earth, Planets and Space

Fig. 6

From: X-ray computerized tomography analysis and density estimation using a sediment core from the Challenger Mound area in the Porcupine Seabight, off Western Ireland

Fig. 6

Scatterplot illustrating the relationship between CT number and wet bulk density. Open triangles and squares show all the data points for densities obtained from the GRA measurement and the mass/volume method, respectively. The accompanying horizontal bars represent CT number distribution in the corresponding area to be used for density measurements. Solid gray triangle and square indicate average densities of host sediments by the GRA measurements and the mass/volume method, respectively. The solid circle indicates the density of a pebble by the water saturation method with the measurement error. The horizontal bar of the solid circle shows the full-width at half maximum (FWHM) of CT number distribution as a proxy for estimating data range. Thick gray dashed and dotted lines were determined by Inazaki et al. (1995) and Orsi et al. (1994). Thick gray solid and one-dotted lines were determined by least-squares analysis for silica sediments and carbonate samples by Orsi and Anderson (1999). Dashed line was determined in this study.

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