Reusch's_Moraine
The Smalfjord diamictite,[1] Bigganjargga Tillite[2] or Reusch's Moraine is a diamictite in Finnmark, northern Norway. The rock was first identified as a tillite by Hans Reusch in 1891, hence its name.[3] The tillite overlies sandstone whose contact surface is striated.[4] Reusch's Moraine belongs to the Smalfjord Formation, a geological formation of Neoproterozoic age.[3] The tillite possibly formed during the Sturtian glaciation in connection to a global glaciation.[3][4]
Reusch's Moraine was among the first sites discovered to bear evidence of Precambrian glaciations, being only preceded by findings in Scotland (1871), Australia (1884) and India (1887). The site is remarkably illustrative and Reusch's 1891 sketch has been labeled "iconic" by Paul F. Hoffman.[1] The area has been protected by law at least since the 1960s and it is forbidden to hammer the rocks.[5]