Relation between the field of surface heat flow and the distribution ofP
n
-wave velocities for continents |
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| Authors: | Jaroslav Kubík Reviewer A Janá?ková Reviewer V ?ervený |
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| Institution: | (1) Geophysical Institute, Czechosl. Acad. Sci., Prague |
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| Abstract: | Summary The dependence between Pn-wave velocities and the surface heat flow, temperature at the core-mantl boundary and thickness of the Earth's crust for continents (Europe, Asia, North America and Australia) was investigated statistically in connection with the problem of lateral inhomogeneities in the upper mantle. The relations obtained were compared with those determined under laboratory conditions. The conclusion is that temperature and pressure effects may provide additional explanations of the regional variations of Pn-wave velocities observed in most continents.
      a u u m  ¶rt;   a u  u  m u n¶rt;  a nmu  uua(Pn
), nm mn nm, mnam a u  m mum  a u¶rt;aa u n uuuma ¶rt;¶rt;m mu Pn.  nua ¶rt;a mama aam u¶rt;au nu m n¶rt; amuu u u ¶rt;au u mnam a¶rt;um mmmuu mamau n¶rt;aa am.  am ¶rt;, m ua uu m Pn- ¶rt; amu muma n¶rt;m auu m¶rt;uauu u a nmu muua.
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