Fe3+-rich augite and high electrical conductivity in the deep lithosphere

Geology

Volumn 40, Issue 2, 2012, Pages 131-134

  Yang, Xiaozhi ^a   McCammon, Catherine ^a  

^a UNIVERSITÄT BAYREUTH   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

ELECTRICAL CONDUCTIVITY; HIGH CONDUCTIVITY; HIGH ELECTRICAL CONDUCTIVITY; HIGH-CONDUCTIVITY ZONES; HYDROUS PHASIS; LITHOSPHERIC MANTLE; MAGNETOTELLURIC SOUNDINGS; MEGACRYSTS; ORDERS OF MAGNITUDE; SILICATE MELTS;

IRON OXIDES; OLIVINE; SILICATES;

ELECTRIC CONDUCTIVITY;

AUGITE; CRYSTALLIZATION; ELECTRICAL CONDUCTIVITY; INFILTRATION; IRON; LITHOSPHERIC STRUCTURE; MAGNETOTELLURIC METHOD; MANTLE STRUCTURE; MEGACRYST; OLIVINE; SILICATE MELT;

EID: 84863230643     PISSN: 00917613     EISSN: 19432682     Source Type: Journal    
DOI: 10.1130/G32725.1     Document Type: Article

References (35)

1. Akinin, V.V., Sobolev, A.V., Ntaflos, T., and Richter, W., 2005, Clinopyroxene megacrysts from Enmelen melanephelinitic volcanoes (Chukchi Peninsula, Russia): Application to composition and evolution of mantle melts: Contributions to Mineralogy and Petrology, v. 150, p. 85-101, doi:10.1007/s00410-005-0007-x.
2. Anderson, D.L., 2007, New theory of the Earth: Cambridge, UK, Cambridge University Press, 384 p.
3. Bell, D.R., and Ihinger, P.D., 2000, The isotopic composition of hydrogen in nominally anhydrous mantle minerals: Geochimica et Cosmochimica Acta, v. 64, p. 2109-2118, doi:10.1016/S0016 -7037(99)00440-8.
4. Bell, D.R., Rossman, G.R., and Moore, R.O., 2004, Abundance and partitioning of OH in a highpressure magmatic system: Megacrysts from the Monastery kimberlite, South Africa: Journal of Petrology, v. 45, p. 1539-1564, doi:10.1093/ petrology/egh015.
5. Binns, R.A., Duggan, M.B., Wilkinson, J.F.G., and Kalocsai, G.I.Z., 1970, High pressure megacrysts in alkaline lavas from northeastern New South Wales: American Journal of Science, v. 269, p. 132-168, doi:10.2475/ajs.269.2.132.
6. Boerner, D.E., Kurtz, R.D., Craven, J.A., Ross, G.M., Jones, F.W., and Davis, W.J., 1999, Electrical conductivity in the Precambrian lithosphere of western Canada: Science, v. 283, p. 668-670, doi:10.1126/science.283.5402.668.
7. Canil, D., and O'Neill, H.S.C., 1996, Distribution of ferric iron in some upper-mantle assemblages: Journal of Petrology, v. 37, p. 609-635, doi:10.1093/petrology/37.3.609.
8. Constable, S., 2006, SEO3: A new model of olivine electrical conductivity: Geophysical Journal International, v. 166, p. 435-437, doi:10.1111/ j.1365-246X.2006.03041.x.
9. Dai, L., and Karato, S.I., 2009, Electrical conductivity of pyrope-rich garnet at high temperature and high pressure: Physics of the Earth and Planetary Interiors, v. 176, p. 83-88, doi:10.1016/j .pepi.2009.04.002.
10. Davies, G.R., Spriggs, A.J., and Nixon, P.H., 2001, A non-cognate origin for the Gibeon kimberlite megacryst suite, Namibia: Implications for the origin of Namibian kimberlites: Journal of Petrology, v. 42, p. 159-172, doi:10.1093/ petrology/42.1.159.
11. +, and D/H in mantlederived augite from Dish Hill: Implications for alteration during transport, in Dyar, M.D., et al., eds., Mineral spectroscopy, a tribute to R.G. Burns: Geochemical Society Special Publication 5, p. 289-304.
12. Evans, R.L., Hirth, G., Baba, K., Forsyth, D., Chave, A., and Mackie, R., 2005, Geophysical evidence from the MELT area for compositional controls on oceanic plates: Nature, v. 437, p. 249-252, doi:10.1038/nature04014.
13. Fischer, K.M., Ford, H.A., Abt, D.L., and Rychert, C.A., 2010, The lithosphere-asthenosphere boundary: Annual Review of Earth and Planetary Sciences, v. 38, p. 551-575, doi:10.1146/ annurev-earth-040809-152438.
14. Gaillard, F., Malki, M., Iacono-Marziano, G., Pichavant, M., and Scaillet, B., 2008, Carbonatite melts and electrical conductivity in the asthenosphere: Science, v. 322, p. 1363-1365, doi:10.1126/ science.1164446.
15. Hinze, E., Will, G., and Cemic, L., 1981, Electrical conductivity measurements on synthetic olivines and on olivine, enstatite and diopside from Dreiser Weiher, Eifel (Germany) under defined thermodynamic activities as a function of temperature and pressure: Physics of the Earth and Planetary Interiors, v. 25, p. 245-254, doi:10.1016/ 0031-9201(81)90068-6.
16. Huang, X., Xu, Y., and Karato, S.I., 2005, Water content in the transition zone from electrical conductivity of wadsleyite and ringwoodite: Nature, v. 434, p. 746-749, doi:10.1038/nature03426.
17. Huebner, J.S., and Dillenburg, R.G., 1995, Impedance spectra of hot, dry silicate minerals and rock: Qualitative interpretation of spectra: American Mineralogist, v. 80, p. 46-64.
18. Huebner, J.S., and Voigt, D.E., 1988, Electrical conductivity of diopside: Evidence for oxygen vacancies: American Mineralogist, v. 73, p. 1235-1254.
19. Lee, C.T., Luffi, P., and Chin, E.J., 2011, Building and destroying continental mantle: Annual Review of Earth and Planetary Sciences, v. 39, p. 59-90, doi:10.1146/annurev-earth-040610-133505.
20. Lehtonen, M., O'Brien, H., Peltonen, P., Kukkonen, I., and Verzhak, V., 2009, Mantle xenocrysts from the Arkhangelskaya kimberlite (Lomonosov mine, NW Russia): Constraints on the composition and thermal state of the diamondiferous lithospheric mantle: Lithos, v. 112, p. 924-933, doi:10.1016/j .lithos.2009.03.008.
21. 3+ content of megacrysts from alkali basalts: Geology, v. 17, p. 687-690, doi:10.1130/0091-7613 (1989)017<0687:NFFRAS>2.3.CO;2.
22. Nakamura, A., and Schmalzried, H., 1983, On the nonstoichiometry and point defects of olivine: Physics and Chemistry of Minerals, v. 10, p. 27-37, doi:10.1007/BF01204323.
23. Poe, B.T., Romano, C., Nestola, F., and Smyth, J.R., 2010, Electrical conductivity anisotropy of dry and hydrous olivine at 8 GPa: Physics of the Earth and Planetary Interiors, v. 181, p. 103-111, doi:10.1016/j.pepi.2010.05.003.
24. Romano, C., Poe, B.T., Kreidie, N., and McCammon, C., 2006, Electrical conductivities of pyropealmandine garnets up to 19 GPa and 1700 °C: American Mineralogist, v. 91, p. 1371-1377, doi:10.2138/am.2006.1983.
25. Romano, C., Poe, B.T., Tyburczy, J.A., and Nestola, F., 2009, Electrical conductivity of hydrous wadsleyite: European Journal of Mineralogy, v. 21, p. 615-622, doi:10.1127/0935-1221/2009/ 0021-1933.
26. Rooney, T.O., Furman, T., Yirgu, G., and Ayalew, D., 2005, Structure of the Ethiopian lithosphere: Xenolith evidence in the Main Ethiopian Rift: Geochimica et Cosmochimica Acta, v. 69, p. 3889-3910, doi:10.1016/j.gca.2005.03.043.
27. Shaw, C.S.J., and Eyzaguirre, J., 2000, Origin of megacrysts in the mafic alkaline lavas of the West Eifel volcanic field, Germany: Lithos, v. 50, p. 75-95, doi:10.1016/S0024-4937(99)00048-1.
28. Wang, D., Mookherjee, M., Xu, Y., and Karato, S., 2006, The effect of water on the electrical conductivity of olivine: Nature, v. 443, p. 977-980, doi:10.1038/nature05256.
29. Wang, Z.C., Ji, S.C., and Dresen, G., 1999, Hydrogenenhanced electrical conductivity of diopside crystals: Geophysical Research Letters, v. 26, p. 799-802, doi:10.1029/1999GL900094.
30. Xu, Y., and Shankland, T.J., 1999, Electrical conductivity of orthopyroxene and its high pressure phases: Geophysical Research Letters, v. 26, p. 2645-2648, doi:10.1029/1999GL008378.
31. Xu, Y., Shankland, T.J., and Duba, A.G., 2000, Pressure effect on electrical conductivity of mantle olivine: Physics of the Earth and Planetary Interiors, v. 118, p. 149-161, doi:10.1016/S0031 -9201(99)00135-1.
32. Yang, X., Keppler, H., McCammon, C., Ni, H., Xia, Q., and Fan, Q., 2011, The effect of water on the electrical conductivity of lower crustal clinopyroxene: Journal of Geophysical Research, v. 116, B04208, doi:10.1029/2010JB008010.
33. Yaxley, G., Green, D.H., and Kamenetsky, V., 1998, Carbonatite metasomatism in the southeastern Australian lithosphere: Journal of Petrology, v. 39, p. 1917-1930, doi:10.1093/petrology/39.11.1917.
34. Yoshino, T., Matsuzaki, T., Yamashita, S., and Katsura, T., 2006, Hydrous olivine unable to account for conductivity anomaly at the top of the asthenosphere: Nature, v. 443, p. 973-976, doi:10.1038/ nature05223.
35. Yoshino, T., Matsuzaki, T., Shatskiy, A., and Katsura, T., 2009, The effect of water on the electrical conductivity of olivine aggregates and its implications for the electrical structure of the upper mantle: Earth and Planetary Science Letters, v. 288, p. 291-300, doi:10.1016/j.epsl.2009.09.032.