Thermal
Conductivity
Scanning

Examples of thermal conductivity measurements:

Measured on drill core samples from the German Continental Deep Drilling Program KTB. (a precursoror of the International Continental Deep Drilling Program ICDP)

Example # 1: Shear zone. High resolution measurement of thermal conductivity along two profiles(1 ->) and (2 ->)

Mean results:

Mean (W/m/K) Min Max G (%) Inhomo Profile 1 2.78 2.24 3.63 11.01 0.50 Profile 2 3.04 2.49 3.63 7.65 0.38

G = Standard deviation / mean
Inhomogeneity factor = (max-min)/mean

Thermal conductivity profiles:

Example # 2: Shear zone in hornblende gneiss. Measurement of magnetic susceptibility (courtesy of Dr. Helmuth Winter, University of Munich) and thermal conductivity along the same profile.

Mean results:

Mean (W/m/K) Min Max G (%) Inhomo 3.46 2.67 4.23 8.24 0.45

Thermal conductivity profile:            Profile of magnetic susceptibility: