Archaean Time

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This is a diagram showing the rocks of the successive periods of time. They are shown in order from the Archaean, in Northern New York, southwestward to the Coal-formation of Pennsylvania, showing that they succee one another on the map simply because they come to the surface in succession

Keywords

Canadian, hamilton, oriskany, trenton, Niagara, Archaean Time, Primordial, Salina, Helderberg, Corniferous, Chemung, Catskills, Subcarboniferous, Carboniferous

Galleries

Structural Geology

Source

James D. Dana, New Text-book of Geology (New York: Ivison, Blakeman & Company, 1883) 198

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