GEODYNAMIC ZONATION OF THE ATLANTIC OCEAN LITHOSPHERE: APPLICATION OF CLUSTER ANALYSIS PROCEDURE AND ZONING INFERRED FROM GEOPHYSICAL DATA
Abstract and keywords
Abstract (English):
Ten geological-geophysical parameters used in geodynamics directly or indirectly reflecting geometry of the Atlantic lithosphere inner boundaries, mass distribution within the lithosphere, and energy release made it possible to calculate 15 stable combinations of parameters whose manifestation areas are interpreted as geodynamically different districts. The Atlantic lithosphere zonation allows a new segmentation of a mid-oceanic ridge zone presenting the alternation of "cold'' and "hot'' blocks, marked by discrete conditions of basalt melts formation. Additional phenomena superimposed on the standard oceanic lithosphere are discussed. The phenomena present zones pseudosymmetric with respect to a mid-oceanic ridge marked by highly productive plume magmatism, these zones are more extensive than it has been considered earlier, and sublatitudinal zones exhibiting some features of fore-arc zones.

Keywords:
Geodynamic zonation, cluster analysis, mid-oceanic ridge zone.
Text
Publication text (PDF): Read Download
References

1. Becker, Geochemistry Geophysics Geosystems G3, v. 3, no. 1, 2002., doi:https://doi.org/10.1029/2001GC000168

2. Belousov, Fundamentals of Geotectonics, 1975.

3. Boldyrev, Seismodynamics of the Mid-Atlantic Ridge, 1998.

4. Bonatti, Science, v. 261, no. 5119, 1993., doi:https://doi.org/10.1126/science.261.5119.315

5. Cande, Magnetic Lineations of World's Ocean Basins map, Digitized Set by G. Cole, 1993.

6. Courtillot, Earth Planet. Sci. Lett., v. 6470, 2002.

7. Dmitriev, Petrologia, v. 11, no. 6, 2003.

8. Dmitriev, Petrologia, v. 14, no. 3, 2006.

9. Dmitriev, Russian Journal of Earth Sciences, v. 3, no. 6, 2001.

10. Dmitriev, Russian Journal of Earth sciences, v. 1, no. 6, 1999.

11. Grand, GSA Today, v. 7, 1997.

12. Hwang, EGM97 -- Joint Earth Geopotential Model, 1997.

13. Ioganson, Vestnik OGGGN RAN, v. 4, no. 14, 2000.

14. Khain, Geotectonics Along With Fundamentals of Geodynamics, 1995.

15. Laske, EOS Trans. AGU, v. 78, 1997.

16. Letyshkov, Petrologia, v. 5, no. 6, 1997.

17. Mashchenkov, Geological structure and evolution of the central Atlantic lithosphere surveys along Canary-Bahamas traverse, 1998.

18. Maus, Geophys. Res. Lett., v. 29, no. 14, 2002., doi:https://doi.org/10.1029/2001GL013685

19. Mazarovich, Geotektonika, v. 36, no. 3, 2002.

20. Mazarovich, Sovremennye Problemy Geologii, 2004.

21. Mueller, Digital age map of the ocean floor, 1993.

22. Pavlenkova, Stroenie i evolyutsiya tektonosfery, 1987.

23. Podgornykh, Map of global heat flow. 1:30000000, Explanetary note, 1997.

24. Pollack, New Global Heat Flow Compilation, 1991.

25. Reisner, Stroenie i Evolyutsiya Tektonosfery, 1987.

26. Reisner, Sovremennaya Geodinamika i Glubinnoe Stroenie Territorii SSSR, 1990.

27. Sandwell, J. Geophys. Res., v. 102, no. B5, 1997., doi:https://doi.org/10.1029/96JB03223

28. Silantiev, Petrologia, v. 11, no. 4, 2003.

29. Sobolev, On evolution and formation of mantle magma, 1997.

30. Sobolev, Petrologia, v. 2, no. 2, 1994.

31. Udintsev, Mezhdunarodny Geologo-Gefizichesky Atlas Atlantichaskogo Okeana, 1990.

32. Van der Hilst, Nature, v. 386, 1997., doi:https://doi.org/10.1038/386578a0

33. Wilson, Igneous Petrogenesis, 1989.

34. Yavorsky, Spravochnik po Fizike Dlya Inzhenerov i Studentov Vuzov, 1974.

35. Zonenshain, Paleogeodinamika, 1993.

Login or Create
* Forgot password?