Sentence Examples with the word algonkian

He wrote Correlation Papers - Archaean and Algonkian (1892), Some Principles Controlling the Deposition of Ores (1901).

The remainder of Finland is built up of the oldest known crystalline rocks belonging to the Archaeozoic or Algonkian period.

Regarding now the outcrops of bed-rock, there are exposures of Algonkian (doubtful, and at most a mere patch on Pilot Knob), Archean, Cambrian, Ordovician, Silurian, Devonian, sub-Carboniferous and Carboniferous.