Moon: Korolev and Hertzsprung 00NS 145W
Steven Dutch, Natural and Applied Sciences, University
of Wisconsin - Green Bay
e
Scale: 1 pixel = 2 km. 5-degree grid;
Mercator
Projection, Projection Center 00NS 145WE; Map center 00NS 145W
Lunar Geology Index Global and Planetary Geology Index
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
Korolev (named for Sergei Korlolev, mastermind of the Soviet space program) and Hertzsprung (named for Ejnar Hertzsprung, Danish astronomer and co-inventer of the Hertzsprung Russell Diagram, a fundamental tool for investigating stellar evolution) are plenty big enough to be sizable maria, but are completely lacking in mare lavas. Korolev is recognizable on the geologic map but Hertzsprung is entirely invisible. It's morphologically evident but mantled by Mare Orientale and other younger deposits.
Lunar Geology Index
Global and Planetary Geology Index
Return to Professor Dutch's Home Page
Created 11 April 2014, Last Update
Not an official UW Green Bay site