The Lopian orogeny (also known as the Rebolian orogeny) was a mountain building event that affected the Baltic Shield during the Archean, between 2.9 and 2.6 billion years ago. The Kola-Belomorian gneiss and Karelian granitoid-greenstone terrane both formed during this time.[1][2]


  1. ^ Gaal, G. & Gorbatschev, R. (1987). "An Outline of the precambrian evolution of the baltic shield". Precambrian Research. 35: 15–52. Bibcode:1987PreR...35...15G. doi:10.1016/0301-9268(87)90044-1.((cite journal)): CS1 maint: multiple names: authors list (link)
  2. ^ Goodwin, A. (1991). Precambrian Geology: The Dynamic Evolution of the Continental Crust. Academic Press. p. 582. ISBN 9781483288550.