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Archaean Time
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Description: 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
Source: James D. Dana, New Text-book of Geology (New York: Ivison, Blakeman & Company, 1883)198
Keywords: Archaean Time, Primordial, Canadian, Trenton, Niagara, Salina, Helderberg, Oriskany, Corniferous, Hamilton, Chemung, Catskills, Subcarboniferous, Carboniferous,
Copyright: 2009, Florida Center for Instructional Technology. See license.
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