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| First Page | Document Content | |
|---|---|---|
 Date: 2009-01-19 22:57:24Plate tectonics Orogeny Ordovician Silurian Geology of the United States Iapetus Ocean Taconic Mountains Subduction Queenston Delta Geology Geologic time scale Phanerozoic |
| First Page | Document Content | |
|---|---|---|
Date: 2009-01-19 22:57:24Plate tectonics Orogeny Ordovician Silurian Geology of the United States Iapetus Ocean Taconic Mountains Subduction Queenston Delta Geology Geologic time scale Phanerozoic |
