New heat flow values from Virginia

Nine holes in the Blue Ridge, Valley and Ridge, and Alleghaney Plateau Provinces of Virginia provide heat flow values of 0.87 ± 0.07 mcal/cm² -sec , 7.7 ± 0.5 mcal/cm² -sec, 1.2 ± 0.1 mcal/cm²-sec and 1.4 ± 0.1 mcal/cm² -sec at Poor Mountain (37°02'N, 80°12'W), Hot Springs (38°00'N, 79°50'W), Back Creek (38°14'N, 79°49'W) and Vansant (37°12‘N, 82°06'W) respectively. The value of 0.87 mcal/cm² -sec agrees with Diment's Central Region for the eastern United States. Limited data support a model of moderately deep circulation of meteoric water possibly coupled with the heat generation of buried plutonic rocks to explain the origin of the hot springs in Hot Springs, Virginia.