Terrestrial Heat Flow: Measurement in Lake Bottoms

Science  24 Sep 1965:
Vol. 149, Issue 3691, pp. 1499-1501
DOI: 10.1126/science.149.3691.1499


The feasibility of measuring terrestrial heat flow in lakes has been investigated in Lake Superior. The temperature gradient and thermal conductivity of the sediment were measured at each of four stations in water depths exceeding 250 meters. Consideration of the effects of climatic variations suggests that they may not seriously affect the values for heat flow obtained by this method. The values measured are in reasonable agreement with other continental values in the shield areas.