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Table T38. Errors in core liner thickness, P-wave velocity, and gamma density of a core liner filled with water caused by 2 cm offset of measurement point, Site C0002.

Interval (cm) Core thickness (cm) Error
(%) 		P-wave (m/s) Error
(%) 		Gamma density (g/cm3) Error
(%)
Correct
position 		Wrong
position 		Difference Correct position Wrong position Difference Correct position Wrong position Difference
*4 6.862 6.895 −0.033 0.48                
8 6.641 6.731 −0.09 1.36 1486.347 1488.172 −1.825 0.12 1.0177 1.007 0.0107 1.05
12 6.612 6.651 −0.039 0.59 1488.184 1477.015 11.169 0.75 1.0257 1.0176 0.0081 0.79
16 6.601 6.64 −0.039 0.59 1490.741 1477.854 12.887 0.86 1.0046 1.0159 −0.0113 1.12
20 6.595 6.633 −0.038 0.58 1491.069 1479.59 11.479 0.77 1.0115 1.0147 −0.0032 0.32
24 6.587 6.623 −0.036 0.55 1485.901 1487.312 −1.411 0.09 1.027 1.0285 −0.0015 0.15
28 6.586 6.609 −0.023 0.35 1489.035 1489.184 −0.149 0.01 1.0286 1.0211 0.0075 0.73
32 6.598 6.613 −0.015 0.23 1491.748 1486.736 5.012 0.34 1.0126 1.0319 −0.0193 1.91
*36 6.872 6.682 0.19 2.76 1483.272 1437.608 45.664 3.08 0.9886 1.0313 −0.0427 4.32
*40 6.908 6.896 0.012 0.17 1508.956 1509.632 −0.676 0.04 0.9538 0.9277 0.0261 2.74

* = 0–2.5 and 37.5–40 cm are end cap; 0–4.5 and 35–40 cm are wrapping vinyl tape. Core thickness resolution = 0.02 mm, P-wave accuracy = 0.2%, gamma density resolution is better than 1%. (information from GEOTEK, www.geotek.co.uk/products/mscl-s/)

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