Significats de algonkian strata en anglès

Arrived at the river, spend a day there investigating the peculiar foldings and tiltings of the Algonkian strata.

Tilting of the Algonkian Strata.

During the later ages, after the Algonkian strata had been uplifted to form part of the continent, a second concentration has taken place.

On the plateaus separating Hance Canyon from Mineral Canyon, and the latter from Red Canyon, one can see the rare Algonkian strata to fine advantage.

Ask of these tilted strata of red rock, that give the canyon its name, that the men wise in rocks call the non-conformable Algonkian strata!