V.V. Gordienko, L.Ya. Gordienko. A VELOCITY MODEL FOR BACKARC BASINS UPPER MANTLE

https://doi.org/10.15407/gpimo2016.02.037

Geology and Mineral Resources of World Ocean 2016, 12 (2): 37-47

V.V. Gordienko, L.Ya. Gordienko 

Institute of Geophysics of NAS of Ukraine, Kyiv

A VELOCITY MODEL FOR BACKARC BASINS UPPER MANTLE 
According to the arrival time of the Pwaves from earthquakes beneath backarcs basins of  Pacific hodographs are built at distances up to 25 degrees. It is allowed to establish the speed distribution up to depths of about 450—500 km. It is established the low velocity zone in the upper mantle from 80 to 150 km, where the partial melting of the rocks is probably. The geologic history and deep processes in backarc basins are analyzed. It is stablished that endogenous oceanization condition is inherent in them. 
Key words: back-arcs basins, velocity sections, oceanization. 

References

1. Govorov G.I. Fanerozojskie magmaticheskie poyasa i formirovanie struktury Ohotomorskogo geobloka. Vladivostok. Dal'nauka, 2002. 203 s.

2. Gordienko V.V., Gordienko L.YA. Skorostnoj razrez verhnej mantii pod Aleutskoj, Kuril'skoj i YAponskoj ostrovnymi dugami . Geol. i polezn. iskop. Mirovogo okeana. 2012. No 3. S. 37—46.

3. Gordienko V.V., Gordienko L.YA. Skorostnaya model' verhnej mantii pod ostrovnymi dugami i beregovymi hrebtami Tihogo okeana . Geol. i pol. iskop. Mirovogo okeana. 2015. No 3. S. 69—81.

4. Gordienko V.V., Gordienko L.YA. Skorostnaya model' verhnej mantii pod sredinnookeanicheskimi hrebtami . Geol. i pol. iskop. Mirovogo okeana. 2016. No 1. S. 33—42. 
https://doi.org/10.15407/gpimo2016.01.033

5. Gordienko V.V., Gordienko L.YA. Skorostnye razrezy verhnej mantii okeanicheskih kotlovin i glubokovodnyh zhelobov . DopovIdI NAN UkraYini. 2016. No 4. S. 62—68.

6. Korolyuk V.N., Lepegin G.G., Korsakov A.V. Ocenka termicheskoj istorii metamorficheskih porod po obmennodiffuznoj zonal'nosti v mineralah . Geologiya i geofizika. 2004. No 4. S. 501—512.

7. Tektonosfera Tihookeanskoj okrainy Azii . Red. K.F. Sergeev, V.V. Gordienko, M.L. Krasnyj. Vladivostok, 1992. 238 s.

8. Tarakanov R.Z. Skorostnye modeli i godografy Rvoln dlya Dal'nevostochnogo regiona . Vestn. DVO RAN. 2006. No 1. S. 81—95.

9. Tektonicheskoe rajonirovanie i uglevodorodnyj potencial Ohotskogo morya. M. Nauka, 2006. 131 s.

10. Udincev G.B. Rel'ef i stroenie dna okeanov. M. Nedra, 1987. 240 s.

11. Frolova T.I., Perchuk L.L., Burikova I.A. Magmatizm i preobrazovanie zemnoj kory aktivnyh okrain. M. Nedra, 1989. 260 s.

12. Gordienko V. Essential points of the advectionpolymorphism hypothesis. NCGT Journal. 2015. 3. No 2. P. 115—136.

13. Gudmundsson O., Sambridge M. A regionalized upper mantle (RUM) seismic model. J. G. R. 1998. 102, 4. P. 7121—7126.

14. Jiang G., Zhao D., Zhang G. Seismic tomography of the Pacific slab edge under Kamchatka . Tectonophysics. 2009. 465 P. 190—203.
https://doi.org/10.1016/j.tecto.2008.11.019

15. U.S. Geological Survey Albuquerque Seismological Laboratory. Elektronnyiy resurs. Rezhim dostupa: http://aslwww.cr.usgs.gov/ Seismic_Data/