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Estimating heat capacity and heat content of rocks

January 1, 1995

New heat-capacity measurements are reported for four rock types; Westerly granite from Bradford, RI, andesite from Lake County, OR, peridotite from Sonoma County, CA, and basalt from the Columbia River Group. Measurements were made on powders of the rocks in the temperature range of 340 to about 1000 K.

Our measured heat-capacity values for rocks and other measurements of heat capacity or heat content of rocks found in the literature have been compared with estimated rock heat capacities calculated from the summation of heat capacities of both minerals and oxide components. The validity of calculating the heat content or heat capacity of rocks to better than about ± 3% from its mineral or chemical composition is well demonstrated by the data presented here.

Publication Year 1995
Title Estimating heat capacity and heat content of rocks
DOI 10.3133/ofr95622
Authors Eugene C. Robertson, Bruch S. Hemingway
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Open-File Report
Series Number 95-622
Index ID ofr95622
Record Source USGS Publications Warehouse
USGS Organization Volcano Hazards Program