Geothe,'mws(I972) . VOL. I. N o , 4
Geothermal Map of Eastern Europe L ~ S Z L 6 STEGENA
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A g e o t h e r m a l m a p of Eastern E u r o p e has been c o n s t r u c t e d a n d is s h o w n here, T h e c o n t o u r s represent t e m p e r a t u r e values in c e n t i g r a d e units at one t h o u s a n d meters d e p t h . V a l u e s a n d m e t h o d of c o m p i l a t i o n are s h o w n on the m a p . Since a v a i l a b l e d a t a are l i m i t e d and they are not suitable in all respects, the m a p is r e g a r d e d as p r e l i m i n a r y in n a t u r e . T h e t e m p e r a t u r e itself does not r e p r e s e n t such v a l u a b l e i n f o r m a t i o n as does the heat flow. H o w e v e r m e a s u r e m e n t s of heat P o w are very s p o r a d i c . M o r e o v e r , in my j u d g m e n t , h e a t flow m e a s u r e m e n t s , especially in the case of loose s e d i m e n t s , are sometimes l o a d e d with systematic errors. Some conclusions a b o u t the m a p m a y be d r a w n . 1. G e o t h e r m a l ,~ highs ,, are c o n n e c t e d w i t h the regional tectonics. To the south are the territories of a l p i n e tectonics ( C a r p a t h i a n Basin, B a l k a n M o u n t a i n s , Caucasus), to the west the m a r g i n of the Russian Platform, a n d to the east the Ural M o u n t a i n s . 2. T h e r e are g o o d c o r r e l a t i o n s b e t w e e n g e o t h e r m a l a n o m a l i e s a n d recent crustal m o v e m e n t s ( I U G G , SubC o m m i s s i o n on M a p of Eastern E u r o p e , Editor-in-Chief I. A. MESCHERIKOV), in the sense that g e o t h e r m a l highs are associated w i t h u p l i f t e d structures. It seems that these c o r r e l a t i o n s m a y be a m a n i f e s t a t i o n of the wellk n o w n eclogite-basalt p h a s e t r a n s f o r m a t i o n .
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E6tv6s Univcrsity, Budapest, Hungary.
REFERENCES
BELTEKY L. 1966 - - Geothermal conditions of Hungary from measurements in wells from 1956 to 1965. Hidr. KiSzI., 9, 406.412 (in Hungarian). CERMAK V. 1968 - - Terrestrial heat flow in eastern Slovakia. Geojys. Sborn.. v. 15, 305-319. CERMAK V. 1968 - - Heat flow in the Zacldr-Svatonovice basin. Acta Geophys. Polonica, v. 16, 1, 3-9. CERM,',K V. 1968 - - Terrestrial heat flow in the Alpine-Carpa thian foredeep in south Moravia. ]our Geophys. Res.. v. 73, 2, 820-821. CERMAK V. 1968--Terrestrial heat flow in Czechoslovakia and its relation to some geological features, Int. Geol. Congr. Report. Proc. See.. 5, 75-85. DEPOWSKI S., SAeULA L. 1969 - - Results of thermal studies made in the south-eastern-part of Polish Lowland. Kwart. Geol., v. 13, 198-210 (in Polish). MAKAREN~O F. A., POL^K B. G., SMmNOV I. B. 1968 - - Geothermal field on the territory of the USSR. Int. Geol. Congr. Report, Proc. See., 5, 67.73, Prague. ME1NCKE W., HUaTIG E.. WEINER I. 1967 - - Temperature distribution, heat conductivity and heat flow in the Thuringian basin. Geophys. and Geol., 11, 40-71 (in German). NEGOITA V. 1970 - - l~tude sur la distribution des temperatures en Romanie. Revue Rumaine de G.G.G.. Ser. de Geophys.. lanuary 14. PETKOV I., BORmOVA Y. 1965 - - Geothermal prospectin in north Bulgaria. Izv. Geophys Inst.. v. 7, 119-129 tin Bulgarian). PLEWA S. 1967 - - Measurement results of the surface heat flow on the Polish territory. In ~ Selected problems o] Upper Mantle Investigations~, Polish Scient. Publishers, 103-113. SCHLOSSER P. 1968 - - A first estimate of the geothermal parameters in the uppermost region of the earth's crust. in the central and nO,rthetn part of the territory of the GDR and their relationship to the geological and geophysical elements. Freiberger Forschungshelte, C 238. I3.22 tin German).
GEOISOTHERMS
IN THE DEPTH OF 1 KM, IN DEGREES CENTIGRACE A Compiled
PROVISIONAL
by L. Stegena,
Eiitvbs
MAP
University
- Budapest
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