Quote:
Originally Posted by multiweb
That's a lot of titanium.
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Hi Marc,
I found this on a NASA website
https://www.nasa.gov/mission_pages/L...olor_moon.html
"Colors on the Moon are dominantly controlled by variations in iron and titanium content. The mare regions have low reflectance because they contain relatively high amounts of iron oxide (FeO). Some mare basalts contain unusually high amounts of titanium oxide (TiO2) in addition to iron oxide, making for even lower reflectance. TiO2 also shifts the color of the mare from red to blue."
Richard.