Jean-Pierre Williams

Claritas rise, Mars: Pre-Tharsis magmatism? (2009)

Dohm, James M., Anderson, Robert C., Williams, Jean-Pierre, Ruiz, Javier, McGuire, Patrick C., Buczkowski, Debra L., ...

Claritas rise is a prominent ancient (Noachian) center of tectonism identified through investigation of comprehensive paleotectonic information of the western hemisphere of Mars. This center is...

New evidence for a magmatic influence on the origin of Valles Marineris, Mars (2009)

Dohm, James M., Williams, Jean-Pierre, Anderson, Robert C., Ruiz, Javier, McGuire, Patrick C., Komatsu, Goro, ...

In this paper, we show that the complex geological evolution of Valles Marineris, Mars, has been highly influenced by the manifestation of magmatism (e.g., possible plume activity). This is based on...

The formation of Tharsis on Mars: What the line-of-sight gravity is telling us (2008)

Williams, Jean-Pierre, Nimmo, Francis, Moore, William B., Paige, David A.

Line-of-sight (LOS) spacecraft acceleration profiles from the Radio Science Experiment and topography from the Mars Orbiter Laser Altimeter (MOLA) instrument of the Mars Global Surveyor (MGS) are...