hrvatski

Prilog poznavanju gustoće površinskog toplinskog toka u širem području Zagreba

Within the project Basic Geothermic Map of the Republic of Croatia investigation on terrestrial heat-flow density in the greater area of Zagreb was carried out. The calculation was based on temperature data for deep drill-holes and conductivity of the drilled lithologic units. It has been determined that values of geothermic gradients, rock thermal conductivities, interval heat-flow densities and terrestrial heat-flow densities are of wide range. Terrestrial heat-flow density values in the narrow zone of the investigated area are considerably higher than the average and are typical of positive anomalies of terrestrial heat-flow density. Positive anomaly of terrestrial heat-flow density is somewhat wider than positive temperature anomaly at the depth of 1000 m. Values of terrestrial heat-flow density obtained by this investigation differ from data published so far.

geotermija; gustoća toplinskog toka; geotermijska anomalija; Zagreb

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