Photo Researchers ftp March 2011
EN_00958297_0948
Optical image of Mars with an illustration showing it's core, mantle and crust. Current studies say its core consists primarily of iron with about 14-17% sulfur, and is about 1480 km in radius. The core is surrounded by a silicate mantle that formed many of the tectonic and volcanic features on the planet, but now appears to be inactive. The average thickness of the planet's crust is about 50 km, while the maximum thickness is about 125 km. In comparison, Earth's crust, averages 40 km, and is only one third as thick as the crust of Mars.
2011-03-24
EAST NEWS
Science Source
Monica Schroeder / Science Sourc
BQ2283
0,22MB
25cm x 25cm przy 300dpi
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