Jixi (Mathilde)

Chinese coal basin.

Jixi is a city in southeastern Heilongjiang Province, People's Republic of China. At the 2010 census, 1,862,165 people resided within its administrative area of 22,488.47 square kilometres Jixi is on the Muling River about 30 km from Khanka Lake. The mayor is Zhu Deyi since July 2009. (wikipedia entry)

A crater is a circular depression likely created by an impact event. On Mathilde they are named after coal fields and basins of the world.