Moon: Mare Frigoris 50N 015W

Steven Dutch, Natural and Applied Sciences, University of Wisconsin - Green Bay
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Scale: 1 pixel = 2 km. 5-degree grid;             Lambert Conformal Conic Projection, Center 50N 015W

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Legend

Copernican: Beginning with the formation of the bright crater Copernicus, about 1.1 Ga. Formation of bright ray craters.
Eratosthenian: Begins with the formation of the crater Eratosthenes. Fresh but non-rayed craters and late mare eruptions. 1.1 to 3.1 Ga.
Imbrian: Begins with the formation of the Imbrium Basin. Includes most mare eruptions. 3.1 to 3.8 Ga.
Nectarian: Begins with the formation of the Nectaris Basin, and includes most of the major impact basin events. 3.8 to 3.9 Ga.
pre-Nectarian: Before 3.9 Ga

Discussion

Mare Frigoris (Sea of Cold) is unusual among lunar maria for its elongate shape. We now recognize that it actually fills one of the outer rings of the Imbrium Basin. The tongue of high ground between Mare Imbrium and Mare Frigoris host the flooded crater Plato and the graceful Sinus Iridium (Bay of Rainbows), whose northern rim is intact but whose southern rim is buried by Imbrium mare deposits.

Notes and References


Lunar Geology Index
Global and Planetary Geology Index
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Created 11 April 2014, Last Update 12 March 2015
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