The area was strongly deformed at 1.98 -- 1.95 Ga .
Area can be interpreted as a setting of intense volcanism and sedimentation in a coastal - marine environment in which island arcs reused detritus from Archaean sources .
The area was strongly deformed at 1.98 -- 1.95 Ga but it can be interpreted as a setting of intense volcanism and sedimentation in a coastal - marine environment in which island arcs reused detritus from Archaean sources .