Impact-induced seismic activity on asteroid 433 Eros: A surface modification process

Science

Volumn 306, Issue 5701, 2004, Pages 1526-1529

  Richardson, James E ^a   Melosh, H Jay ^a   Greenberg, Richard ^a  

^a UNIVERSITY OF ARIZONA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

DEGRADATION; EARTHQUAKE EFFECTS; MATHEMATICAL MODELS; RANDOM PROCESSES; SURFACE TOPOGRAPHY; SURFACE TREATMENT;

CRATERS; LOOSE REGOLITH LAYERS; SEISMIC ACTIVITY; SIZE-FREQUENCY DISTRIBUTIONS;

SEISMOLOGY;

ASTEROID; CRATER; IMPACT STRUCTURE;

ARTICLE; ASTRONOMY; DIFFUSION COEFFICIENT; EARTHQUAKE; ENVIRONMENTAL EROSION; GEOMORPHOLOGY; IMAGE ANALYSIS; MATHEMATICAL MODEL; PRIORITY JOURNAL; STOCHASTIC MODEL; SURFACE PROPERTY; TOPOGRAPHY;

ASTEROIDEA;

EID: 9444296448     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.1104731     Document Type: Article

References (31)

1. J. Veverka et al., Science 292, 484 (2001).
2. P. Thomas et al., Icarus 155, 18 (2002).
3. C. R. Chapman et al., Icarus 155, 104 (2002).
4. M. S. Robinson, P. C. Thomas, J. Veverka, S. L. Murchie, B. B. Wilcox, Meteoritics 37, 1651 (2002).
5. A. F. Cheng, N. Izenberg, C. R. Chapman, M. T. Zuber, Meteoritics 37, 109S (2002).
6. M. J. Cintala, J. W. Head, J. Veverka, Proc. Lunar Planet. Sci. Conf. 9, 3803 (1978).
7. T. W. Lambe, R. V. Whitman, Soil Mechanics, SI Edition (Wiley, New York, 1979), pp. 256-257.
8. A. M. Dainty et al., Moon 9, 11 (1974).
9. P. H. Schultz, D. E. Gault, Moon 12, 159 (1975).
10. W. F. Bottke, M. C. Nolan, R. Greenberg, R. A. Kolvoord, Icarus 107, 255 (1994).
11. Materials and methods are available as supporting material on Science Online.
12. H. J. Melosh, E. V. Ryan, Icarus 129, 562 (1997).
13. W. Benz, E. Asphaug, Icarus 142, 5 (1999).
14. N. Houston, J. Moriwaki, C. S. Chang, Proc. Lunar Planet. Sci. Conf. 4, 2425 (1973).
15. G. S. Collins, H. J. Melosh, J. V. Morgan, M. R. Warner, Icarus 157, 24 (2002).
16. D. C Richardson, Z. M. Leinhardt H. J. Melosh, W. F. Bottke, E. Asphaug, in Asteroids III, W. F. Bottke et al., Eds. (Univ. of Arizona Press, Tucson, AZ, 2002), pp. 501-516.
17. F. Duennebier, G. H. Sutton, J. Geophys. Res. 79-29, 4365 (1974).
18. L. Prockter et al., Icarus 155, 75 (2002).
19. J. J. Roering, J. W. Kirchner, W. E. Dietrich, Water Kesour. Res. 35-3, 853 (1999).
20. d = 0.6).
21. E. H. Culling, J. Geol. 68, 336 (1960).
22. H. J. Melosh, Impact Cratering: A Geologic Process (Oxford Univ. Press, New York, 1989), pp. 154-161.
23. W. H. Press, S. A. Teukolsky, W. T. Vetterling, B. P. Flannery, Numerical Recipes in Fortran 77 (Cambridge Univ. Press, Cambridge, 1992), pp. 266-319.
24. D. O'Brien, thesis, University of Arizona (2004).
25. P. Michel, P. Farinella, C. Froeschle, Astron. J. 116, 2023 (1998).
26. This is neither an absolute age for Eros, because major impacts can potentially quot;resetquot; the asteroid surface record (27, 28), nor is it an accurate age for the current surface record, because the chaotic nature of Eros's orbit has exposed it to a highly variable impactor flux (25) rather than our assumed constant flux. At best, this surface age represents a lower limit, assuming that an average Main Belt impactor flux is at the high end of those to which Eros has actually been exposed.
27. R. Greenberg, M. C. Nolan, W. F. Bottke, R. A. Kolvoord, J. Veverka, Icarus 107, 84 (1994).
28. R. Greenberg et al., Icarus 120, 106 (1996).
29. H. Kanamori, J. W. Given, Geophys. Res. Lett. 10-5, 373 (1983).
30. A. Woronow et al., Icarus 37, 467 (1979).
31. We thank H. Kanamori (California Institute of Technology) for the use of his theoretical seismic code for Lamb pulse seismic sources, C. Chapman (Southwest Research Institute) for the use of his crater count data for Eros, and D. O'Brien (University of Arizona) for the use of his modeling results for the collisional history of the main asteroid belt. Supported by grant no. NAG5-12619 of NASA's NEAR Data Analysis Program and no. NAG5-11493 of NASA's Planetary Geology and Geophysics Program.