| 1. | Cores indicate variations of climate, species and sedimentary composition during geologic history.
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| 2. | The debate is not the first of this kind in geologic history.
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| 3. | These large-scale variations mark distinct geologic histories to the north and south.
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| 4. | The origin of the younger plains materials is critical to mercurian geologic history.
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| 5. | Each province has its own geologic history and unique features.
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| 6. | No record exists for the next 1, 200 million years of Jerome's geologic history.
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| 7. | The "'Geology of Kansas "'encompasses the geologic history of the Pennsylvanian and Permian periods.
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| 8. | During recent geologic history, the Chuckanut formation was overridden by four or more glaciations.
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| 9. | This process has happened over and over in the geologic history of the Earth.
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| 10. | It is the quieter, normal events of our geologic history we don't yet understand.
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