description Tolstoj Overview
Tolstoj is a large, ancient impact basin on Mercury, named after Russian writer Leo Tolstoy. The heavily degraded structure is surrounded by an extensive ejecta deposit and lies within terrain shaped during an early phase of the planet's geological history. Its age and stratigraphic relationships gave the name Tolstojan to one of the principal periods used by planetary geologists to classify Mercury's surface evolution.
help Tolstoj FAQ
Who is the Tolstoj crater on Mercury named after?
The Tolstoj crater on Mercury is named after the Russian writer Leo Tolstoy, author of "War and Peace." This naming convention aligns with the International Astronomical Union's tradition of naming Mercurian craters after famous artists and writers.
Where is the Tolstoj impact basin located on Mercury?
The Tolstoj basin is a large, ancient impact structure that lies within terrain shaped during an early phase of Mercury's geological history. It is prominently found in the planet's southern hemisphere and features extensive, ancient terrain.
What geological features surround the Tolstoj crater?
The heavily degraded Tolstoj basin is surrounded by an extensive ejecta deposit, extending up to 500 kilometers from its rim. These ancient deposits record the effects of the massive meteorite impact on the planet's early crust.
How was the Tolstoj crater mapped by NASA?
The basin was extensively mapped by NASA during the Mariner 10 and MESSENGER missions. The images gathered provided essential stratigraphic data about the early impact history and cratering record of Mercury.
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