Solubility and partitioning of Ne, Ar, Kr and Xe in minerals and synthetic basaltic melts
作者： C.L Broadhurst , M.J Drake , B.E Hagee , T.J Bernatowicz
DOI: 10.1016/0016-7037(92)90092-W
关键词:
摘要: We have measured the solubilities of Ne, Ar, Kr and Xe in natural samples anorthite, diopside, forsterite, spinel synthetic basaltic melts. The minerals melts represent equilibrium pairs Fo-An-Di-SiO2 system. Samples were suspended individual crucibles a one-bar flowing mixed noble gas atmosphere at 1300 or 1332°C for times ranging from 7–18 days. The increase with increasing atomic number typical solubility values are surprisingly high. particular mineral (i.e., anorthite) that came different localities yield distinctly reproducible values. This indicates properties intrinsic to can influence solubility. Noble gases likely be sited lattice vacancy defects. In contrast, decrease number. Our data overlap low end range defined previously basalts; however, dynamic Ne is not as great Solubilities correlate well melt molar volume but poorly density. The partition coefficients all mineral/melt pairs. Such trends imply terrestrial planet atmospheres derived partial melting chondritic source material. Significant fractionation relative observed, ruling out an origin Earth's “missing” via magmatic fractionation. Partition coefficient absolute frequently near greater than unity. For example, ranges five diopside measurements following: DNel, 0.013–0.37; DArl, 0.15–0.84; DKrl, 0.31–2.4; DXel, 3.2–47. transport efficient mechanism degassing planets. results favor catastrophic atmospheres.
harvard.edu
jaxa.jp
elsevier.com参考文章(71)
A. Hayatsu, C.E. Waboso, The solubility of rare gases in silicate melts and implications for KAr dating Chemical Geology: Isotope Geoscience section. ,vol. 52, pp. 97- 102 ,(1985) , 10.1016/0168-9622(85)90009-0
Sho Sasaki, Kiyoshi Nakazawa, Origin of isotopic fractionation of terrestrial Xe: hydrodynamic fractionation during escape of the primordial H2He atmosphere Earth and Planetary Science Letters. ,vol. 89, pp. 323- 334 ,(1988) , 10.1016/0012-821X(88)90120-3
R.C. Wiens, R.O. Pepin, Laboratory shock emplacement of noble gases, nitrogen, and carbon dioxide into basalt, and implications for trapped gases in shergottite EETA 79001 Geochimica et Cosmochimica Acta. ,vol. 52, pp. 295- 307 ,(1988) , 10.1016/0016-7037(88)90085-3
I.Ya Azbel, I.N Tolstikhin, Geodynamics, magmatism, and degassing of the Earth Geochimica et Cosmochimica Acta. ,vol. 54, pp. 139- 154 ,(1990) , 10.1016/0016-7037(90)90202-V
James C.G. Walker, Impact Erosion of Planetary Atmospheres Icarus. ,vol. 68, pp. 87- 98 ,(1986) , 10.1016/0019-1035(86)90076-X
T.J. Bernatowicz, B.M. Kennedy, F.A. Podosek, Xe in glacial ice and the atmospheric inventory of noble gases Geochimica et Cosmochimica Acta. ,vol. 49, pp. 2561- 2564 ,(1985) , 10.1016/0016-7037(85)90124-3
Albert Jambon, Hartwig Weber, Otto Braun, Solubility of He, Ne, Ar, Kr and Xe in a basalt melt in the range 1250–1600°C. Geochemical implications Geochimica et Cosmochimica Acta. ,vol. 50, pp. 401- 408 ,(1986) , 10.1016/0016-7037(86)90193-6
Donald S. Musselwhite, Michael J. Drake, Timothy D. Swindle, Early outgassing of Mars supported by differential water solubility of iodine and xenon Nature. ,vol. 352, pp. 697- 699 ,(1991) , 10.1038/352697A0
Bernard Marty, Neon and xenon isotopes in MORB: implications for the earth-atmosphere evolution Earth and Planetary Science Letters. ,vol. 94, pp. 45- 56 ,(1989) , 10.1016/0012-821X(89)90082-4
T.D. Swindle, D.H. Garrison, J.N. Goswami, C.M. Hohenberg, R.H. Nichols, C.T. Olinger, Noble gases in the howardites Bholghati and Kapoeta Geochimica et Cosmochimica Acta. ,vol. 54, pp. 2183- 2194 ,(1990) , 10.1016/0016-7037(90)90044-L