1 / 15

Constraints on Mantle Composition from 1D Earth Models

ESS Building SUNY Stony Brook Stony Brook, NY 11794. Constraints on Mantle Composition from 1D Earth Models. Baosheng Li. 2007 Vlab/EGC Workshop. Supported by National Science Foundation. Mantle. OC. IC. PREM. Dziewonski and Anderson (1981). Structure of the Earth.

kapila
Télécharger la présentation

Constraints on Mantle Composition from 1D Earth Models

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ESS Building SUNY Stony Brook Stony Brook, NY 11794 Constraints on Mantle Composition from 1D Earth Models Baosheng Li • 2007 Vlab/EGC Workshop Supported by National Science Foundation

  2. Mantle OC IC PREM Dziewonski and Anderson (1981) Structure of the Earth Upper mantle and Transition Zone: Low velocity zone, discontinuities; Lower Mantle: Phase transition at D”

  3. Mineralogy and Chemical Composition Models of the Mantle (Ringwood, 1975)

  4. Constraints on the Earth’s Interior: Forward Modelling Thermoelasticity for mantle minerals/phases Mineral Assemblage in the mantle Adiabatically or isothermally raise pressure to deeper depths Mixing of all phases (VRH, HS, etc)

  5. Composition: Pyrolite and Piclogite Bass and Anderson (1984)

  6. Blue: Piclogite ; Red: Pyrolite Bass and Anderson (1984)

  7. Comparison of the P and S wave velocities for olivine and wadsleyite at 410 km depth Duffy and Anderson (JGR, 1989) W. Liu, J. Kung and B. Li (GRL,2005)

  8. Thermoelasticity of Mantle Minerals Stixrude and Lithgow-Bertelloni (2005)

  9. Velocity of Mantle Minerals at Mantle Depths B. Li and R. C. Liebermann (PNAS, 2007)

  10. Phase Fraction of Pyrolite in the Mantle Stixrude and Lithgow-Bertelloni (2005)

  11. Phase Assemblage of Piclogite in the Mantle Stixrude and Lithgow-Bertelloni (G J I, 2005)

  12. B. Li and R. C. Liebermann (PNAS, 2007)

  13. PREM Pyrolite Piclogite Blue: 1500K Red: 1600K Ita and Stixrude (1992) Stixrude and Lithgow-Bertelloni (2005)

  14. Comparison of Pyrolite with 1-D • PREM/AK135 • Simultaneous Vp, Vs, r comparison • for tight constraints B. Li and J. Zhang (PEPI, 2005) See also Zhao&Anderson (1994), Jackson (1998) Hamma and Anderson (2002); Stacey(1996); Murakami et al(2007)

More Related