Abstract
Based on temperature measurements in two boreholes, a high heat-flow density value of 96 ± 3.2 (s.d.) mW m −2 has been obtained for the Tusham area of the Trans-Aravalli region. This is the highest of all the heat-flow values so far obtained from the Mid-Late Proterozoic terrains of India and more than double that in the nearby Aravalli-Bundelkhand craton. It has been inferred that both the high crustal radioactive heat generation and the upper-mantle heat flow are responsible for the heat surface heat flow at Tusham.
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