Mathematics – Logic
Scientific paper
Dec 1967
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1967bvol...30..129p&link_type=abstract
Bulletin Volcanologique, Volume 30, Issue 1, pp.129-138
Mathematics
Logic
Scientific paper
The energy expenditure, associated with the Quaternary volcanic activity on Kamchatka is three times higher than the heat losses as result of background conductive heat flow in this region, and 17 times higher than the heat discharge by hydrothermae. The general intensity of deep heat expenditure and transformation as a result of these three phenomena proves here to be on the average 7.8 µ cal/cm2 per second. This is several times higher than the average values of conductive heat losses of the Earth. The described phenomena (conductive heat flow, volcanic activity, heat discharge by hydrothermae), however do not exhaust all the forms of deep energy expenditure of this region. Metamorphic processes, occuring in its interiors are also accompanied by tremendous energy expenditure and can be compared in this respect with volcanicity ( Fyfe, Verhoogen). With due consideration to these and some other « energy capacious » geological processes, the total value of deep energy losses as direct heat withdrawal from the interiors and in other forms should be still higher. To the similar conclusion leads an analysis of the thermal history of the Earth, showing that during the period of active volcanicity, the heat supply from the upper beds of the mantle into such areas of the Earth crust, increased up to the value of the order 10 µ cal/cm2 per second ( Lubimovn). Such areas of active volcanicity may be regarded as positive geothermic anomalies on a planetary scale. This conclusion seems to have a common character and can be used for the whole area of recent geosynclines. This is confirmed by the space coincidence of the most intensive manifestations of tectogenesis, magmatism (volcanism), metamorphism and other « energy capacious » processes in various periods of the Earth’s history. The abundance of heat influx into such areas of the Earth may result from the convective currents in the mantle or from the tectonic tension, caused by cosmic factors.
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