Linné, the perfect crater / a cratera perfeita.

The white arrows in the bottom image point to the original, well-preserved layers below the crater rim
As setas brancas, na imagem inferior, apontam as camadas originais e bem preservadas abaixo do rebordo da cratera.

The black arrows show fractures in the rim as the walls of the crater collapsed.
As setas negras mostram fracturas no rebordo, quando as paredes da cratera abateram.
Imagens LROC/Nasa