gtcrustГеодинамика и тектонофизикаGeodynamics & Tectonophysics2078-502XInstitute of the Earth's crust of the Russian Academy of Sciences, Siberian Branch10.5800/GT-2012-3-1-0059gtcrust-149Research ArticleСОВРЕМЕННАЯ ГЕОДИНАМИКАRECENT GEODYNAMICSВЗАИМОДЕЙСТВИЕ МАНТИЙНЫХ РАСПЛАВОВ С КОРОЙ ПРИ ИХ ПОДЪЕМЕ К ПОВЕРХНОСТИ: ПРИЧИНА И СЛЕДСТВИЯINTERACTION OF MANTLE-DERIVED MELTS WITH CRUST ON ITS UPWELLING TO THE SURFACE: REASON AND CONSEQUENCEИвановАлексей ВикторовичIvanovAlexei V.

канд. геол.-мин. наук, с.н.с.,

664033, Иркутск, ул. Лермонтова, 128

Candidate of Geology and Mineralogy, Senior Researcher,

664033, Irkutsk, Lermontov street, 128

aivanov@crust.irk.ruИнститут земной коры СО РАНРоссияInstitute of the Earth’s Crust, Siberian Branch of RASRussian Federation201222092015311926Copyright © Иванов А.В., 20152015Иванов А.В.Ivanov A.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.gt-crust.ru/jour/article/view/149

В работе рассматривается механизм подъема базальтовых магм к поверхности и причина их возможной задержки в коре. Процесс задержки магм, по-видимому, контролируется соотношением плотности базальтового расплава и плотности верхней коры. Если плотность базальтового расплава оказывается ниже, то он поднимается к поверхности без существенной задержки, если выше – застревает. Поскольку плотность расплава падает с ростом его щелочности и/или флюидонасыщенности, это объясняет, почему высокощелочные расплавы характеризуются меньшей степенью контаминированности в сравнении с сухими расплавами нормальной щелочности.

The work considers the mechanism of upwelling of the basaltic melt to the surface and the reason of its stoppage in the crust. The process of stoppage, probably, is controlled by ratio between density of the basaltic melt and density of the crust. If density of the basaltic melt is lower it goes up to the surface without significant stoppage, if the opposite it stays in the crust. Because the melt density decreases with increase of its alkalinity and/ or fluid content, it explains why highly alkaline melts are characterized by low degree of crustal contamination compared to normal alkaline dry melts.

корамантиябазальтcrustmantlebasaltСО РАН, РФФИReferencesАnderson D.L. New theory of the Earth. Cambridge: Cambridge University Press, 2007. 384 .cАnderson D.L. New theory of the Earth. Cambridge: Cambridge University Press, 2007. 384 .cAschepkov I.V. Glubinnye ksenolity bajkalskogo rifta [Deep-seated xenolith of the Baikal rift]. Novosibirsk: Nauka. Sibirskoe otdelenie, 1991. 160 р. (in Russian).Aschepkov I.V. Glubinnye ksenolity bajkalskogo rifta [Deep-seated xenolith of the Baikal rift]. Novosibirsk: Nauka. Sibirskoe otdelenie, 1991. 160 р. (in Russian).Campbell I.H., Griffiths R.W. Implications of mantle plume structure for the evolution of flood basalts // Earth and Planetary Science Letters. 1990. V. 99. Р. 79–93.Campbell I.H., Griffiths R.W. Implications of mantle plume structure for the evolution of flood basalts // Earth and Planetary Science Letters. 1990. V. 99. Р. 79–93.Coltice N., Phillips B.R., Bertrand H., Ricard Y., Rey Р. Global warming of the mantle at the origin of flood basalts over supercontinents // Geology. 2007. V. 35. Р. 391–394. doi:10.1130/G23240A.1.Coltice N., Phillips B.R., Bertrand H., Ricard Y., Rey Р. Global warming of the mantle at the origin of flood basalts over supercontinents // Geology. 2007. V. 35. Р. 391–394. doi:10.1130/G23240A.1.Dickin A.P. Radiogenic isotope geology. Second edition. New York: Cambridge University Press, 2005. 492 p.Dickin A.P. Radiogenic isotope geology. Second edition. New York: Cambridge University Press, 2005. 492 p.Dziewonski A.M., Anderson D.L. Preliminary reference Earth model // Physics of the Earth and Planetary Interiors. 1981. V. 25. Р. 297–356.Dziewonski A.M., Anderson D.L. Preliminary reference Earth model // Physics of the Earth and Planetary Interiors. 1981. V. 25. Р. 297–356.Faure G. Origin of igneous rocks. The isotopic evidence. Berlin–Heidelberg: Springer-Verlag, 2000. 496 p.Faure G. Origin of igneous rocks. The isotopic evidence. Berlin–Heidelberg: Springer-Verlag, 2000. 496 p.Gaffney A.M., Nelson B.K., Blichert-Toft J. Geochemical constraints on the role of oceanic lithosphere in intro-volcano heterogeneity at West Maui, Hawaii // Journal of Petrology. 2004. V. 45. Р. 1663–1687. doi:10.1093/petrology/egh029.Gaffney A.M., Nelson B.K., Blichert-Toft J. Geochemical constraints on the role of oceanic lithosphere in intro-volcano heterogeneity at West Maui, Hawaii // Journal of Petrology. 2004. V. 45. Р. 1663–1687. doi:10.1093/petrology/egh029.Grove T.L., Chatterjee N., Parman S.W., Medard E. The influence of H2O on mantle wedge melting // Earth and Planetary Science Letters. 2006. V. 249. Р. 74–89. doi:10.1016/j.epsl.2006.06.043.Grove T.L., Chatterjee N., Parman S.W., Medard E. The influence of H2O on mantle wedge melting // Earth and Planetary Science Letters. 2006. V. 249. Р. 74–89. doi:10.1016/j.epsl.2006.06.043.Guillot B., Sator N. A computer simulation study of natural silicate melts. Part II: High pressure properties // Geochimica et Cosmochimica Acta. 2007. V. 71. Р. 4538–4556. doi:10.1016/j.gca.2007.05.029.Guillot B., Sator N. A computer simulation study of natural silicate melts. Part II: High pressure properties // Geochimica et Cosmochimica Acta. 2007. V. 71. Р. 4538–4556. doi:10.1016/j.gca.2007.05.029.Hirschmann M.M. Mantle solidus. Experimental constraints and the effect of peridotite composition // Geochemistry Geophysics Geosystems. 2000. V. 24, GC000070.Hirschmann M.M. Mantle solidus. Experimental constraints and the effect of peridotite composition // Geochemistry Geophysics Geosystems. 2000. V. 24, GC000070.Ivanov A.V., Demonterova E.I. Extension in the Baikal rift and the depth of basalt magma generation // Doklady Earth Sciences. 2010. V. 435. Р. 1564–1568. doi:10.1134/S1028334X10120032.Ivanov A.V., Demonterova E.I. Extension in the Baikal rift and the depth of basalt magma generation // Doklady Earth Sciences. 2010. V. 435. Р. 1564–1568. doi:10.1134/S1028334X10120032.Jochum K.P., Laue H.-J., Seufert H.M., Dienemann C., Stoll B., Pfдnder J., Flanz M., Achtermann H., Hofmann A.W. Multi-ion counting-spark source mass-spectrometry (MIC-SSMS): a new multielement technique in geo- and cosmochemistry // Fresenius Journal of Analytical Chemistry. 1997. V. 359. P. 385–389. doi:10.1007/s002160050593.Jochum K.P., Laue H.-J., Seufert H.M., Dienemann C., Stoll B., Pfдnder J., Flanz M., Achtermann H., Hofmann A.W. Multi-ion counting-spark source mass-spectrometry (MIC-SSMS): a new multielement technique in geo- and cosmochemistry // Fresenius Journal of Analytical Chemistry. 1997. V. 359. P. 385–389. doi:10.1007/s002160050593.Johnson J.S., Gibson S.A., Thompson R.N., Nowell G.M. Volcanism in the Vitim volcanic field, Siberia: Geochemical evidence for a mantle plume beneath the Baikal rift zone // Journal of Petrology. 2005. V. 46. P. 1309–1344. doi:10.1093/petrology/egi016.Johnson J.S., Gibson S.A., Thompson R.N., Nowell G.M. Volcanism in the Vitim volcanic field, Siberia: Geochemical evidence for a mantle plume beneath the Baikal rift zone // Journal of Petrology. 2005. V. 46. P. 1309–1344. doi:10.1093/petrology/egi016.King S.D., Anderson D.L. Edge-driven convection // Earth and Planetary Science Letters. 1998. V. 160. Р. 289–296. doi:10.1016/S0012-821X(98)00089-2.King S.D., Anderson D.L. Edge-driven convection // Earth and Planetary Science Letters. 1998. V. 160. Р. 289–296. doi:10.1016/S0012-821X(98)00089-2.Kogiso T., Hirschmann M.M., Frost D.J. High-pressure partial melting of garnet pyroxenite: possible mafic lithologies in the source of ocean island basalts // Earth and Planetary Science Letters. 2003. V. 216. Р. 603–617. doi:10.1016/S0012-821X(03)00538-7.Kogiso T., Hirschmann M.M., Frost D.J. High-pressure partial melting of garnet pyroxenite: possible mafic lithologies in the source of ocean island basalts // Earth and Planetary Science Letters. 2003. V. 216. Р. 603–617. doi:10.1016/S0012-821X(03)00538-7.Kushiro I. Partial melting experiments on peridotite and origin of mid-ocean ridge basalt // Annual Review of the Earth and Planetary Sciences. 2001. V. 29. Р. 71–107. doi:10.1146/annurev.earth.29.1.71.Kushiro I. Partial melting experiments on peridotite and origin of mid-ocean ridge basalt // Annual Review of the Earth and Planetary Sciences. 2001. V. 29. Р. 71–107. doi:10.1146/annurev.earth.29.1.71.Kushiro I. Origin of magmas in subduction zones: a review of experimental studies // Proceedings of Japanese Academy, Series B. 2007. V. 83. Р. 1–15. doi:10.2183/pjab.83.1.Kushiro I. Origin of magmas in subduction zones: a review of experimental studies // Proceedings of Japanese Academy, Series B. 2007. V. 83. Р. 1–15. doi:10.2183/pjab.83.1.Litasov K.D., Taniguchi H. Mantle evolution beneath Baikal rift. Center for Northeast Asian Studies, Tohoku University, Japan, CNEAS Monograph Series. 2002. V. 5. 221 p.Litasov K.D., Taniguchi H. Mantle evolution beneath Baikal rift. Center for Northeast Asian Studies, Tohoku University, Japan, CNEAS Monograph Series. 2002. V. 5. 221 p.McDonough W.F., Sun S.-S. The composition of the Earth // Chemical Geology. 1995. V. 120. Р. 223–253. doi:10.1016/0009-2541(94)00140-4.McDonough W.F., Sun S.-S. The composition of the Earth // Chemical Geology. 1995. V. 120. Р. 223–253. doi:10.1016/0009-2541(94)00140-4.McKenzie D., Jackson J., Priestley K. Thermal structure of oceanic and continental lithosphere // Earth and Planetary Science Letters. 2005. V. 233. Р. 337–349. doi:10.1016/j.epsl.2005.02.005.McKenzie D., Jackson J., Priestley K. Thermal structure of oceanic and continental lithosphere // Earth and Planetary Science Letters. 2005. V. 233. Р. 337–349. doi:10.1016/j.epsl.2005.02.005.Rasskazov S.V. Bazaltoidy Udokana [Basaltoids from the Udokan]. Novosibirsk: Nauka. Sibirskoe otdelenie, 1985. 142 p. (in Russian).Rasskazov S.V. Bazaltoidy Udokana [Basaltoids from the Udokan]. Novosibirsk: Nauka. Sibirskoe otdelenie, 1985. 142 p. (in Russian).Rasskazov S.V. Magmatizm bajkalskoj riftovoj sistemy [Magmatism of the Baikal Rift System]. Novosibirsk: Nauka. Sibirskoe otdelenie. 1993. 299 p. (in Russian).Rasskazov S.V. Magmatizm bajkalskoj riftovoj sistemy [Magmatism of the Baikal Rift System]. Novosibirsk: Nauka. Sibirskoe otdelenie. 1993. 299 p. (in Russian).Ringwood A.E. Composition and petrology of the Earth’s mantle: New York: McGraw-Hill. 1975. 618 p.Ringwood A.E. Composition and petrology of the Earth’s mantle: New York: McGraw-Hill. 1975. 618 p.Rudnick R.L., Fountain D.M. Nature and composition of the continental crust: A lower crustal perspective // Review of Geophysics. 1995. V. 33. Р. 267–309. doi:10.1029/95RG01302.Rudnick R.L., Fountain D.M. Nature and composition of the continental crust: A lower crustal perspective // Review of Geophysics. 1995. V. 33. Р. 267–309. doi:10.1029/95RG01302.Sato K., Katsura T., Ito E. Phase relations of natural phlogopite with and without enstatite up to 8 GPa: implication for mantle metasomatism // Earth and Planetary Science Letters. 1997. V. 146. Р. 511–526. doi:10.1016/S0012-821X(96)00246-4.Sato K., Katsura T., Ito E. Phase relations of natural phlogopite with and without enstatite up to 8 GPa: implication for mantle metasomatism // Earth and Planetary Science Letters. 1997. V. 146. Р. 511–526. doi:10.1016/S0012-821X(96)00246-4.Sobolev A.V., Hofmann A.W., Sobolev S.V., Nikogosian I.K. An olivine-free mantle source of Hawaiian shield basalts // Nature. 2005. V. 434. Р. 590–597. doi:10.1038/nature03411.Sobolev A.V., Hofmann A.W., Sobolev S.V., Nikogosian I.K. An olivine-free mantle source of Hawaiian shield basalts // Nature. 2005. V. 434. Р. 590–597. doi:10.1038/nature03411.Stupak F.M. Kajnozojskij vulkanizm khrebta udokan [Cenozoic volcanism of the Udokan range]. Novosibirsk: Nauka. Sibirskoe otdelenie. 1987, 169 p. (in Russian).Stupak F.M. Kajnozojskij vulkanizm khrebta udokan [Cenozoic volcanism of the Udokan range]. Novosibirsk: Nauka. Sibirskoe otdelenie. 1987, 169 p. (in Russian).Tiberi C., Diament M., Déverchère J., Petit-Mariani C., Mikhailov V., Tikhotsky S., Achauer U. Deep structure of the Baikal rift zone revealed by joint inversion of gravity and seismology // Journal of Geophysical Research. 2003. V. 108. B3. 2133. doi:10.1029/2002JB001880.Tiberi C., Diament M., Déverchère J., Petit-Mariani C., Mikhailov V., Tikhotsky S., Achauer U. Deep structure of the Baikal rift zone revealed by joint inversion of gravity and seismology // Journal of Geophysical Research. 2003. V. 108. B3. 2133. doi:10.1029/2002JB001880.Wallace M.E., Green D.H. An experimental determination of primary carbonatite magma composition // Nature. 1988. V. 335. Р. 343–346. doi:10.1038/335343a0.Wallace M.E., Green D.H. An experimental determination of primary carbonatite magma composition // Nature. 1988. V. 335. Р. 343–346. doi:10.1038/335343a0.Whittington A.G., Hofmeister A., Nabelek P.I. Temperature-dependent thermal diffusivity of the Earth’s crust and implications for magmatism // Nature. 2009. V. 458. Р. 319–321. doi:10.1038/nature 0781.Whittington A.G., Hofmeister A., Nabelek P.I. Temperature-dependent thermal diffusivity of the Earth’s crust and implications for magmatism // Nature. 2009. V. 458. Р. 319–321. doi:10.1038/nature 0781.Yarmolyuk V.V., Ivanov V.G., Kovalenko V.I., Pokrovsky B.G. Magmatism and geodynamics of the Southern Baikal volcanic region (Mantle Hot Spot): results of geochronological, geochemical, and isotopic (Sr, Nd, and O) investigations // Petrology. 2003. V. 11. Р. 1–30.Yarmolyuk V.V., Ivanov V.G., Kovalenko V.I., Pokrovsky B.G. Magmatism and geodynamics of the Southern Baikal volcanic region (Mantle Hot Spot): results of geochronological, geochemical, and isotopic (Sr, Nd, and O) investigations // Petrology. 2003. V. 11. Р. 1–30.Yaxley G.M., Sobolev A.V. High-pressure partial melting of gabbro and its role in the Hawaiian magma source // Contributions to Mineralogy and Petrology. 2007. V. 154. Р. 371–383. doi:10.1007/s00410-007-0198-4.Yaxley G.M., Sobolev A.V. High-pressure partial melting of gabbro and its role in the Hawaiian magma source // Contributions to Mineralogy and Petrology. 2007. V. 154. Р. 371–383. doi:10.1007/s00410-007-0198-4.Zonenshain L.P., Savostin L.A. Geodynamics of the Baikal rift zone and plate tectonics of Asia // Tectonophysics. 1981. V. 76. Р. 1–45. doi:10.1016/0040-1951(81)90251-1.Zonenshain L.P., Savostin L.A. Geodynamics of the Baikal rift zone and plate tectonics of Asia // Tectonophysics. 1981. V. 76. Р. 1–45. doi:10.1016/0040-1951(81)90251-1.Zorin Yu., Cordell L. Crustal extension in the Baikal rift zone // Tectonophysics. 1991. V. 198. Р. 117–121. doi:10.1016/0040-1951(91)90137-H.Zorin Yu., Cordell L. Crustal extension in the Baikal rift zone // Tectonophysics. 1991. V. 198. Р. 117–121. doi:10.1016/0040-1951(91)90137-H.

The authors declare that there are no conflicts of interest present.