Mineralogy and Geochemistry: Mars Pathfinder Science Results

Mars Pathfinder Mission Mineralogy and Geochemistry Science Operations Group, NASA/Goddard Space Flight Center

This site from NASA's Goddard Space Flight Center features a geochemical analysis of rocks and soils on the surface of Mars using the rover's Alpha Proton X-Ray Spectrometer. Interestingly, these rocks do not match the composition of the meteorites that have been collected on earth, which are basalts. These rocks appear compositionally to be andesites, and the texture of the "Barnacle Bill" rock suggests it may be a breccia.

Subject: Geoscience:Lunar and Planetary Science:Mars:Martian Meteorites, Geoscience:Geology:Igneous and Metamorphic Petrology:Geochemistry, Geoscience:Geology:Mineralogy, Geoscience:Lunar and Planetary Science:Mars:Volcanology/Petrology, Geoscience:Lunar and Planetary Science:Mars
Resource Type: Audio/Visual:Images/Illustrations, Scientific Resources:Overview/Reference Work
Topics: Solar system:Mars:Martian Meteorites, Volcanology/Petrology, Solid Earth:Petrology:Geochemistry, Solid Earth:Mineralogy, Solar system:Mars
Theme: Teach the Earth:Course Topics:Mineralogy, Planetary Science, Petrology