An alternative explanation for the "Buried Channels" on Mars: The gravity signal from a sharp boundary on partially compensated, long-wavelength topography

Geophysical Research Letters

Volumn 31, Issue 5, 2004, Pages

  Dombard, Andrew J ^a   Searls, Mindi L ^a   Phillips, Roger J ^a  

^a WASHINGTON UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

GRAVITATION; MARTIAN SURFACE ANALYSIS; SEDIMENTS;

HARMONIC EXPANSION; HIGHLAND-LOWLAND BOUNDARY; TOPOGRAPHY;

GEOPHYSICS;

GRAVITY ANOMALY; GRAVITY SURVEY; MARS; TOPOGRAPHY;

EID: 18244420248     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/2003gl019162     Document Type: Article

References (10)

1. Frey, H. V., J. H. Roark, K. M. Shockey, E. L. Frey, and S. E. H. Sakimoto (2002), Ancient lowlands on Mars, Geophys. Res. Lett., 29(10). 1384, doi:10.1029/2001GL013832.
2. Lambeck, K. (1988). Geophysical Geodesy, Clarendon Press, Oxford.
3. Lemoine, F. G., D. E. Smith, D. D. Rowlands, M. T. Zuber, G. A. Neumann, D. S. Chinn, and D. E. Pavlis (2001), An improved solution of the gravity field of Mars (GMM-2B) from Mars Global Surveyor, J. rGeophys. Res., 106, 23,359-23,376.
4. Phillips, R. J., M. T. Zuber, B. M. Hynek, and K. B. Portle (2001a), Mars: Are negative linear gravity anomalies buried fluvial channels?, Lunar Planet. Sci. [CD-ROM], XXXII, abstract. 1176.
5. Phillips, R. J., et al. (2001b), Ancient geodynamics and global-scale hydrology on Mars, Science, 291, 2597-2591.
6. Smith, D. E., et al. (2001), Mars Oribter Laser Altimeter: Experiment summary after the first year of global mapping of Mars, J. Geophys. Res., 106, 23,689-23,722.
7. Turcotte, D. L., and G. Schubert (1982), Geodynamics, John Wiley and Sons, New York.
8. Wieczorek, M. A., and R. J. Phillips (1998), Potential anomalies on a sphere: Applications to the thickness of the lunar crust, J. Geophys. Res., 103, 1715-1724.
9. Yuan, D.-N., W. L. Sjogren, A. S. Konopliv, and A. B. Kucinskas (2001), Gravity field of Mars: A 75th degree and order model, J. Geophys. Res., 106, 23,377-23,402.
10. Zuber, M. T., et al. (2000), Internal structure and early thermal evolution of Mars from Mars Global Surveyor topography and gravity, Science, 287, 1788-1793.