The fault valley shows features suggesting a half-graben with a steep slope wall on the west and low-angle slope on the east. The fault forms a steep, prominent circa 40 metres (130 ft) high east-facing scarp on Cretaceous rocks that show initial development of triangular facets. The hanging valleys have Quaternary alluvial deposits on the western uplifted block. The scarp forms the western wall of a narrow and long valley. To the south of Bogotá, it appears that Pleistocene moraines are offset as recorded by east-facing well-preserved scarps about 3 metres (9.8 ft) high.[3]
Gómez Tapias, Jorge; Montes Ramírez, Nohora E.; Almanza Meléndez, María F.; Alcárcel Gutiérrez, Fernando A.; Madrid Montoya, César A.; Diederix, Hans (2015). Geological Map of Colombia. Servicio Geológico Colombiano. pp. 1–212. Retrieved 2019-10-29.