Anomalous Thermal Behavior of an Amorphous Organic Sediment
Using transient heating in the cylindrical probe configuration, the thermal conductivity of four organic lake sediments was measured. Each specimen contained over 90% water as a fraction of total weight. Organic matter in three of the specimens was fibrous and not greatly decomposed; at a temperature of 5C, thermal conductivity of these ranged from 2–5% higher than that of pure water. A fourth specimen was gelatinous and gave conductivity values from 1% to 20% less than that of water, with an apparent dependence on heat input. The insitu environment of this specimen was known to be different from that of the others.