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Volumn 319, Issue 5869, 2008, Pages 1515-1518

Splitting of the 520-kilometer seismic discontinuity and chemical heterogeneity in the mantle

Author keywords

[No Author keywords available]

Indexed keywords

CALCIUM; IRON DERIVATIVE; MAGNESIUM DERIVATIVE; PEROVSKITE; SILICON DERIVATIVE;

EID: 40849124131     PISSN: 00368075     EISSN: 10959203     Source Type: Journal    
DOI: 10.1126/science.1152818     Document Type: Article
Times cited : (78)

References (30)
  • 12
    • 40849124952 scopus 로고    scopus 로고
    • D. J. Weidner, Y. Wang, in Earth's Deep Interior: Mineral Physics and Tomography From the Atomic to the Global Scale [Geophys. Monogr. 117 Am. Geophys. Union (2000)], pp. 215-235.
    • D. J. Weidner, Y. Wang, in Earth's Deep Interior: Mineral Physics and Tomography From the Atomic to the Global Scale [Geophys. Monogr. 117 Am. Geophys. Union (2000)], pp. 215-235.
  • 13
    • 40849114029 scopus 로고    scopus 로고
    • Materials and methods are available on Science Online.
    • Materials and methods are available on Science Online.
  • 16
    • 40849103395 scopus 로고    scopus 로고
    • At equilibrium the standard state free energy change ΔG P,T0 for the reaction in Eq. 1 is related to the activities of the reacting components by the equation ΔG P,T0, RT ln K, RT ln [αMg3Al2Si3O12Gt], αCa3Al2Si3O12Gt][αMg4Si4O12 Gt]3/4, where R is the gas constant, K is the equilibrium constant, and the superscript Gt refers to garnet. The component activities are described by αMg4 Si4 O12Gt, γMg4 Si4 O12Gt (XMaj oct, XMgdodec)3, αCa3 Al2 Si3 O12Gt, γ Ca3 Al2 Si3 O12Gt (1, XMaj oct, XCadodec)3 and αMg3 Al2 Si3 O12
    • MgCa = 8000 + 300P (J/mol, P in GPa) is refined by using the experimental data (13). Trial refinements showed no improvement to the fit of the data when nonideal mixing on the garnet octahedral site was included or when a reciprocal solution model was used.
  • 29
    • 40849133205 scopus 로고    scopus 로고
    • H. Kárason, R. D. Van der Hilst, in The History and Dynamics of Global Plate Motion (Geophys. Monogr. 121 Am. Geophys. Union (2000)], pp. 277-288.
    • H. Kárason, R. D. Van der Hilst, in The History and Dynamics of Global Plate Motion (Geophys. Monogr. 121 Am. Geophys. Union (2000)], pp. 277-288.
  • 30
    • 40849134870 scopus 로고    scopus 로고
    • We thank D. Dolejš and S. Jacobsen for numerous useful discussions. A.S. was funded through the Elitenetzwerk Bavaria, International Graduate School on Structure, Reactivity and Properties of Oxide Materials
    • We thank D. Dolejš and S. Jacobsen for numerous useful discussions. A.S. was funded through the Elitenetzwerk Bavaria, International Graduate School on "Structure, Reactivity and Properties of Oxide Materials."


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.