[S25-1] Development and application of geothermal databases

[S25-1-05] Development of geothermal studies in Uzbekistan

^○Irina Sidorova (Institute of Geology and Geophysics, Tashkent, Uzbekistan)

A high variability of Heat Flow Density (HFD) is typical for the territory of Uzbekistan. The statistics show that the HFD changes in a wide range from 18 mW/m2 (the site Karamurum in the Central Kyzylkum) to 207 mW/m2 (well Jarkamar in NW Ferghana). Several zones with a thermal flow as high as 100 mW/m2 are distinguished in the SW spurs of the Gissar and Surkhandarya depression. In the Central Kyzylkum, there are 60 points for the determination of HFD, mainly in ore deposits. The limits of changes in the HFD values vary from 18 (site Karamurun) to 90 mW/m2 (deposit Muruntau). Geothermal data such as terrestrial heat flow, temperature gradient and rock thermal properties as thermal conductivity, heat capacity and radiogenic heat production rate of rocks have been investigated by the author (patent Heat Flow_DataBase BGU00339Uz).Laboratory studying of thermophysical properties of rocks. In our laboratory during long-term develop study of thermophysical properties of rocks. On the base of obtained data and raster pictures of distribution of elements in the sample, received on microanalyzer JXA-8800R JEOL the computer program PercolationCheck (the patent DGU 01170Uz) intended for calculation of percolation – high thermal conductivity process in rocks has been developed.