Caloris Basin
The Caloris Montes are similar to the so-called Imbrium sculpture on the Moon. It is generally believed that this type of lineated surface feature resulted from excavations by secondary projectiles when the large basins were formed and, possibly, fracturing and faulting of the planet's crust during the basin formation. The Caloris Montes are only the innermost formation of the Caloris Group of formations produced by the Caloris Basin impact.