On the nature of the anomalies of the velocity of propagation of longitudinal seismic waves in the upper mantle
P-velocity models of the upper mantle for the regions with different endogenous regimes on the continents and oceans (Precambrian platforms, zones of young activization, Alpine geosynclines, rifts, deep basins, mid-ocean ridges, margin trenches) have been considered. Thermal models and standard comp...
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| Datum: | 2010 |
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| 1. Verfasser: | |
| Format: | Artikel |
| Sprache: | Russisch |
| Veröffentlicht: |
S. Subbotin Institute of Geophysics of the NAS of Ukraine
2010
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| Online Zugang: | https://journals.uran.ua/geofizicheskiy/article/view/117556 |
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| Назва журналу: | Geofizicheskiy Zhurnal |
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Geofizicheskiy Zhurnal| Zusammenfassung: | P-velocity models of the upper mantle for the regions with different endogenous regimes on the continents and oceans (Precambrian platforms, zones of young activization, Alpine geosynclines, rifts, deep basins, mid-ocean ridges, margin trenches) have been considered. Thermal models and standard composition of mantle rocks have been used corresponding to the advection-polymorphous hypothesis. Calculated models are compared with experimental ones, their concordance is demonstrated. The exceptions are the positive anomalies in the experimental data at the depths down to 150-200 km. Perhaps they are connected with the appearance of eclogites in the upper part of the mantle. |
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