Crustal structure of Mars from gravity and topography
نویسندگان
چکیده
منابع مشابه
Crustal structure of Mars from gravity and topography
[1] Mars Orbiter Laser Altimeter (MOLA) topography and gravity models from 5 years of Mars Global Surveyor (MGS) spacecraft tracking provide a window into the structure of the Martian crust and upper mantle. We apply a finite-amplitude terrain correction assuming uniform crustal density and additional corrections for the anomalous densities of the polar caps, the major volcanos, and the hydrost...
متن کاملInternal structure and early thermal evolution of Mars from Mars Global Surveyor topography and gravity.
Topography and gravity measured by the Mars Global Surveyor have enabled determination of the global crust and upper mantle structure of Mars. The planet displays two distinct crustal zones that do not correlate globally with the geologic dichotomy: a region of crust that thins progressively from south to north and encompasses much of the southern highlands and Tharsis province and a region of ...
متن کاملMaria T . Zuber , Gravity Mars from Mars Global Surveyor Topography and Internal Structure and Early Thermal
www.sciencemag.org (this information is current as of January 27, 2009 ): The following resources related to this article are available online at http://www.sciencemag.org/cgi/content/full/287/5459/1788 version of this article at: including high-resolution figures, can be found in the online Updated information and services, found at: can be related to this article A list of selected additional...
متن کاملThermal and crustal evolution of Mars
[1] We present a coupled thermal-magmatic model for the evolution of Mars’ mantle and crust that may be consistent with estimates of the average crustal thickness and crustal growth rate. By coupling a simple parameterized model of mantle convection to a batchmelting model for peridotite, we can investigate potential conditions and evolutionary paths of the crust and mantle in a coupled thermal...
متن کاملEstimates of Martian crustal thickness from viscous relaxation of topography
Isosta.tica,lly compensated crusta,1 thickness variations and associated topographic contrasts a,t the surface of a planet result in lateral pressure gradients, which may cause the lower crust to flow and reduce the relief. Areas of thicker crust are genera, lly associated with more rapid relaxation of topography. On Mars, topographic features such as impa, ct basins a, nd the hemispheric dicho...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Geophysical Research
سال: 2004
ISSN: 0148-0227
DOI: 10.1029/2004je002262