Mathematics – Logic
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufm.p44c..04h&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #P44C-04
Mathematics
Logic
5417 Gravitational Fields (1221), 5430 Interiors (8147), 5440 Magnetic Fields And Magnetism, 5455 Origin And Evolution, 5499 General Or Miscellaneous
Scientific paper
Since the lead up to the Apollo era, observations made by spacecraft have been defining our knowledge of both the present state and geological histories of terrestrial bodies. We will discuss how our understanding of the histories of these bodies has been reshaped by the discoveries enabled by the return of new spacecraft to these planets over the last two decades, from the Magellan mission to Venus to the ongoing MESSENGER mission to Mercury. The geology observed at the surfaces of the Moon and terrestrial planets is the result of external, surficial, and internal processes as well as their complex interactions. A critical element in developing understanding of how terrestrial planets and moons as a whole evolve is connecting these spacecraft observations to the processes governing the behavior of their interiors through time. We will discuss how insights from spacecraft data derived from a broad range of techniques and resolutions have been and are continuing to be leveraged to constrain modeling of planetary heat loss, lithospheric and crustal evolution, mantle convection and magnetic field generation. Important examples are drawn from the crustal plateaus and resurfacing of Venus as well as the development of the Tharsis plateau on Mars. Finally, we will focus on how observations from MESSENGER, both to-date and yet-to-come, will help us unravel Mercury's internal evolution.
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