Published April 26, 2021 | Version v1
Dataset Open

Data for Dynamic history of the inner core constrained by seismic anisotropy

Creators

  • 1. University of California, Berkeley
  • 2. Université de Nantes

Description

Differential PKP travel time measurements from combined global datasets. Columns are organised as:

1. Event date

2. Station name

3. Event latitude

4. Event longitude

5. Event depth (km)

6. Station latitude

7. Station longitude

8. Inner core boundary pierce latitude 1

9. Inner core boundary pierce longitude 1

10. Inner core boundary pierce latitude 2

11. Inner core boundary pierce longitude 2

12. Turning point latitude

13. Turning point longitude

14. Turning point depth (km)

15. Differential PKPab-df travel time (s. 0 if not measured)

16. Differential PKPbc-df travel time (s. 0 if not measured)

17. Angle of inner core path relative to rotation axis (degrees)

18. Publication where data was originally published

 

Files

Files (1.0 MB)

Additional details

Funding

FESD Proposal, Type II: " CIDER-II synthesis center: Cooperative Institute for Dynamic Earth Research" 1135452
National Science Foundation
Resolving the influence of mantle heterogeneity on estimates of inner core anisotropy 1829283
National Science Foundation

References

  • Bréger, L., Tkalčić, H., & Romanowicz, B. A. (2000). The effect of D'' on PKP(AB-DF) travel time residuals and possible implications for inner core structure. Earth Planet. Sci. Lett., 175, 133–143. https://doi.org/10.1016/S0012-821X(99)00286-1
  • Cao, A., & Romanowicz, B. (2007). Locating scatterers in the mantle using array analysis of PKP precursors from an earthquake doublet. Earth Planet. Sci. Lett., 255(1–2), 22–31. https://doi.org/10.1016/j.epsl.2006.12.002
  • Frost, D. A., & Romanowicz, B. (2019). On the orientation of the fast and slow directions of anisotropy in the deep inner core. Physics of the Earth and Planetary Interiors, 286(August 2018), 101–110. https://doi.org/10.1016/j.pepi.2018.11.006
  • Frost, D. A., Lasbleis, M., Chandler, B., Romanowicz, B., (2021). Dynamic history of the inner core constrained by seismic anisotropy. Nature Geoscience
  • Leykam, D., Tkalčić, H., & Reading, A. M. (2010). Core structure re-examined using new teleseismic data recorded in Antarctica: Evidence for, at most, weak cylindrical seismic anisotropy in the inner core. Geophys. J. Int., 180(3), 1329–1343. https://doi.org/10.1111/j.1365-246X.2010.04488.x
  • Romanowicz, B., Cao, A., Godwal, B., Wenk, R., Ventosa, S., & Jeanloz, R. (2015). Seismic anisotropy in the Earth's innermost inner core: testing structural models against mineral physics predictions. Geophys. Res. Lett., 93–100. https://doi.org/10.1002/2015GL066734
  • Soergel, D., Masters Thesis Report, (2015)
  • Tkalčić, H., Romanowicz, B., & Houy, N. (2002). Constraints on D′′ structure using PKP (AB–DF), PKP (BC–DF) and PcP–P traveltime data from broad-band records. Geophys. J. Int., 148, 599–616. https://doi.org/10.1046/j.1365-246X.2002.01603.x
  • Vinnik, L., Romanwicz, B., & Bréger, L. (1994). Anisotropy in the center of the inner core. Geophys. Res. Lett., 21, 1671–1674. https://doi.org/10.1029/94GL01600