High‐pressure experiments and the phase diagram of lower mantle and core materials
R Boehler - Reviews of Geophysics, 2000 - Wiley Online Library
The interpretation of seismic data and computer modeling requires increased accuracy in
relevant material properties in order to improve our knowledge of the structure and dynamics …
relevant material properties in order to improve our knowledge of the structure and dynamics …
Heterogeneity of the lowermost mantle
EJ Garnero - Annual Review of Earth and Planetary Sciences, 2000 - annualreviews.org
Strong heterogeneity at a variety of scale lengths has been imaged in the lowermost mantle
using different forward and inverse methods. Coherent patterns in differential travel times of …
using different forward and inverse methods. Coherent patterns in differential travel times of …
[图书][B] Introduction to the Physics of the Earth's Interior
JP Poirier - 2000 - books.google.com
Enlarged and fully updated, this new edition takes into account the considerable
experimental and theoretical progress recently made in the field. Introduction to the Physics …
experimental and theoretical progress recently made in the field. Introduction to the Physics …
Post-Perovskite Phase Transition in MgSiO3
M Murakami, K Hirose, K Kawamura, N Sata, Y Ohishi - Science, 2004 - science.org
In situ x-ray diffraction measurements of MgSiO3 were performed at high pressure and
temperature similar to the conditions at Earth's core-mantle boundary. Results demonstrate …
temperature similar to the conditions at Earth's core-mantle boundary. Results demonstrate …
Diverse plant and animal genetic records from Holocene and Pleistocene sediments
E Willerslev, AJ Hansen, J Binladen, TB Brand… - Science, 2003 - science.org
Genetic analyses of permafrost and temperate sediments reveal that plant and animal DNA
may be preserved for long periods, even in the absence of obvious macrofossils. In Siberia …
may be preserved for long periods, even in the absence of obvious macrofossils. In Siberia …
Theoretical and experimental evidence for a post-perovskite phase of MgSiO3 in Earth's D″ layer
The Earth's lower mantle is believed to be composed mainly of (Mg, Fe) SiO3 perovskite,
with lesser amounts of (Mg, Fe) O and CaSiO3 (ref.). But it has not been possible to explain …
with lesser amounts of (Mg, Fe) O and CaSiO3 (ref.). But it has not been possible to explain …
Iron partitioning in Earth's mantle: Toward a deep lower mantle discontinuity
We measured the spin state of iron in ferropericlase (Mg0. 83Fe0. 17) O at high pressure
and found a high-spin to low-spin transition occurring in the 60-to 70-gigapascal pressure …
and found a high-spin to low-spin transition occurring in the 60-to 70-gigapascal pressure …
Compositional heterogeneity in the bottom 1000 kilometers of Earth's mantle: Toward a hybrid convection model
RD van der Hilst, H Kárason - Science, 1999 - science.org
Tomographic imaging indicates that slabs of subducted lithosphere can sink deep into
Earth's lower mantle. The view that convective flow is stratified at 660-kilometer depth and …
Earth's lower mantle. The view that convective flow is stratified at 660-kilometer depth and …
Origin of lateral variation of seismic wave velocities and density in the deep mantle
Strong constraints can be placed on the origin of heterogeneity of seismic wave velocities
and density if the observed ratios of various parameters are compared with mineral physics …
and density if the observed ratios of various parameters are compared with mineral physics …
Thermoelastic properties and crystal structure of MgSiO3 perovskite at lower mantle pressure and temperature conditions
G Fiquet, A Dewaele, D Andrault… - Geophysical …, 2000 - Wiley Online Library
A new synchrotron X‐ray diffraction study of MgSiO3 perovskite at high‐pressure and high‐
temperature has been carried out in a laser‐heated diamond‐anvil cell to 94 GPa and …
temperature has been carried out in a laser‐heated diamond‐anvil cell to 94 GPa and …