Abstract
In the territory of the Ukraine there are more than 300 heat-flow determinations ranging from 0.5 to 2.5 μcal. cm −2 sec. −1. Low values correspond to the East European platform and high values to the Carpathian region. The major factor regulating the theral-field formation both in the shield and East European platform is the distribution of the radioactive elements in the upper crust. The larger heat flow in geosynclinal belts is due to the transport of heat from the earth's interior by the products of mantle differentiation. From the nature of the heat-flow anomalies two zones are distinguished. The first zone is characterized by extension and thinning of the crust and strong magmatic activity. Such zones may be considered as channels along which the rise of deep-seated energy and masses occur. The second zone is passive, and high heat flow is due to flow of heated solutions and volatiles from the active areas.
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