The Kalkkögel consist of Mesozoic sediments, like those that occur elsewhere in the Stubai Alps, west of the Wipptal valley, around the Serles crest or in the area of the Tribulaune. In the region of the Kalkkögel, there are sediments from the boundary of the Permian-Triassic to the Norian of the upper Triassic, which lie on its crystalline bedrock.