The relation between the heat flow field and the distribution ofP
n
-wave velocities for the European continent |
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| Authors: | Jaroslav Kubík Reviewer A Janá?ková |
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| Institution: | (1) Geophysical Institute, Czechosl. Acad. Sci., Prague |
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| Abstract: | Summary The dependence of Pn-wave velocities on the heat flow, temperature at the crustmantle boundary and the thickness of the Earth's crust in Europe was investigated in relation to the problem of lateral inhomogeneities in the upper mantle. A map was constructed of the distribution of Pn-wave velocities on the territory of Europe. The relations these investigations yielded, were compared with the results of laboratory experiments and all the results are discussed from the physical point of view. The conclusion drawn is that that temperature and pressure effect provide a sufficient explanation of the observed regional changes of Pn-wave velocities for the European continent.
      a u u m  ¶rt;   a u  u  m u n¶rt;  ¶rt; nmu  uua (Pn) u mn nm, mnam a nmu amuu u  m a mumuu  n  a u¶rt;aa u numa ¶rt;¶rt;m amuu.  mumuu n a maa a uu m Pn- a nmu uua.  u¶rt;u umam ¶rt;a mama aam u¶rt;au  uuu m n¶rt; amuu u u ¶rt;au u mnam mmmm mama n¶rt;aa am.  ¶rt;a ¶rt;, m ua uu m Pn- a n mum ¶rt;mam  um uuu mnam u ¶rt;au a nmu uua.
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