Title: The geology of the Guiana Shield
Subjects: Geology, Mines and mineral resources, Stratigraphic Geology, Guiana Shield, Geology, Stratigraphic - Precambrian, Geology - South America, Geology, stratigraphic, precambrian, Geology, south america, Mines and mineral resources, south america
Places: Guiana Shield, South America
Time periods: Precambrian