Science Fair Project Encyclopedia
Lunar dome
A lunar dome is a type of shield volcano that is found on the surface of the Earth's moon. They are formed by highly viscous lava erupting from localized vents followed by relatively slow cooling. Lunar domes are wide, rounded, circular features with a gentle slope rising in elevation a few hundred meters to the mid-point. They are typically 8-12 km in diameter, but can be up to 20 km across. Some of the domes contain a small craterlet at the peak.
There are concentrations of lunar domes near the Hortensius, Marius and T. Mayer craters, and across the top of Mons Rümker. Solitary lunar domes are also found on the near side, such as Kies Pi (π), Milichius Pi (π) and Mons Gruithuisen Gamma (γ).
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details