Geophysical Dynamics at the Center of the Earth

AUG 01, 1997

The Earth’s iron core and its boundary with the rocky mantle are very active regions. Now we can see what’s going on down there with unprecedented clarity.

DOI: 10.1063/1.881885

Raymond Jeanloz

Barbara Romanowicz

New studies are revealing the dynamics of the Earth’s deep interior to a degree that could hardly be imagined even a few years ago. A combination of geophysical observations (mostly seismological, geomagnetic and geodetic) and new laboratory and computational results has revolutionized our ability to understand what happens at the core of our planet.

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References

1. G. A. Glatzmaier, P. H. Roberts, Nature 377, 203 (1995); https://doi.org/NATUAS
G. A. Glatzmaier, P. H. Roberts, Phys. Earth Planet. Int. 91, 63 (1995).
2. G. A. Glatzmaier, P. H. Roberts, Science 274, 1887 (1996).https://doi.org/SCIEAS
3. L. Stixrude, R. E. Cohen, Science 267, 1972 (1995). https://doi.org/SCIEAS
E. Wasserman, L. Stixrude, R. E. Cohen, Phys. Rev. B 53, 8296 (1996).https://doi.org/PRBMDO
4. R. Jeanloz, H. R. Wenk, Geophys. Res. Lett. 15, 72 (1988). https://doi.org/GPRLAJ
B. Romanowicz, X. D. Li, J. Durek, Science 274, 963 (1996).https://doi.org/SCIEAS
5. A. K. Singh, H. K. Mao, J. Shu, R. J. Hemley, Phys. Rev. Lett., (1997)in press.
6. W. J. Su, A. M. Dziewonski, J. Geophys. Res. 100, 9831 (1995).https://doi.org/JGREA2
7. X. D. Song, P. G. Richards, Nature 382, 221 (1996).https://doi.org/NATUAS
8. W. J. Su, A. M. Dziewonski, R. Jeanloz, Science 274, 1883 (1996).https://doi.org/SCIEAS
9. J. M. Aurnou, D. Brito, P. L. Olson, Geophys. Res. Lett. 23, 3401 (1996).https://doi.org/GPRLAJ
10. E. Knittle, R. Jeanloz, Science 251, 1438 (1991). https://doi.org/SCIEAS
R. Jeanloz, T. Lay, Sci. Am., May 1993, p. 48.
11. R. E. Cohen, I. I. Mazin, D. G. Isaak, Science 275, 654 (1997).https://doi.org/SCIEAS
12. R. van derHilst, S. Widiyantoro, E. R. Engdahl, Nature 386, 578 (1997).https://doi.org/NATUAS
13. M. Manga, R. Jeanloz, Geophys. Res. Lett. 23, 3091 (1996).https://doi.org/GPRLAJ
14. E. J. Garnero, D. V. Helmberger, Geophys. Res. Lett. 23, 977 (1996). https://doi.org/GPRLAJ
Q. Williams, E. J. Garnero, Science 273, 1528 (1996).https://doi.org/SCIEAS
15. Q. Williams, J. Revenaugh, E. J. Garnero, submitted to Nature, 1997.
16. J. M. Kendall, P. G. Silver, Nature 381, 409 (1996).https://doi.org/NATUAS
17. L. Vinnik, L. Breger, B. Romanowicz, submitted to Nature, 1997.
18. M. A. Richards, D. L. Jones, R. A. Duncan, D. J. DePaolo, Science 254, 263 (1991). https://doi.org/SCIEAS
R. L. Larson, Sci. Am., February 1995, p. 66

More about the Authors

Raymond Jeanloz. University of California, Berkeley.

Barbara Romanowicz. University of California, Berkeley.