Follow this link to skip to the main content National Aeronautics and Space Administration Logo
NASA Banner
NASA Mars Exploration Program
Mars Exploration Program
Home
MULTIMEDIA

Images


read the article 'Ribbon Cutting'
09.19.2016 Ribbon Cutting
read the article 'Erisa Hines'
03.30.2016 Erisa Hines
read the article 'Buzz Aldrin'
03.30.2016 Buzz Aldrin
read the article 'Women in Science'
02.12.2016 Women in Science
The yellow triangles on this graph indicate concentrations of the elements titanium and silicon in selected rock targets with high silica content analyzed by the Alpha Particle X-ray Spectrometer (APXS) instrument on NASA's Curiosity rover in Mars' Gale Crater.
12.17.2015

Silicon and Titanium Correlation in Selected Rocks at Gale Crater, Mars

The yellow triangles on this graph indicate concentrations of the elements titanium and silicon in selected rock targets with high silica content analyzed by the Alpha Particle X-ray Spectrometer (APXS) instrument on NASA's Curiosity rover in Mars' Gale Crater.

The pattern shows a correlation between enriched silicon content and enriched titanium content. Titanium is difficult to mobilize in weathering environments, and this correlation suggests that both titanium and silicon remain as the residue of acidic weathering. Ongoing research aims to distinguish between that possible explanation for silicon enrichment and an alternative of mobilized silicon being added to the site (see http://photojournal.jpl.nasa.gov/catalog/PIA20275).

As a general comparison with these selected high-silica targets in Gale Crater, the gray dots in the graph show the range of titanium and silicon concentrations in all Martian targets analyzed by APXS instruments on three Mars rovers at three different areas of Mars.

Image Credit: NASA/JPL-Caltech/University of Guelph

More msl Images
All Images
USA.gov
PRIVACY     FAQ     SITEMAP     IMAGE POLICY     FEEDBACK