| 1. | Instead thrust faults generally cause a thickening of the stratigraphic section.
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| 2. | Stratigraphic sections of rock from this period reveal numerous other changes.
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| 3. | Disprove basic stratigraphic truths we already know from baking layer cakes.
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| 4. | Four stratigraphic levels were observed throughout the middens and were documented.
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| 5. | Many stratigraphic formations in the western Alps were first described by Tr�mpy.
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| 6. | Isopach maps detail the variations in thickness of stratigraphic units.
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| 7. | stratigraphic nomenclature for the Middle Devonian strata in the Appalachian Basin ]]
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| 8. | They are particularly significant as stratigraphic markers in petroleum geology.
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| 9. | The ash layer now forms a useful stratigraphic marker layer throughout Peru.
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| 10. | Moore also developed a uniform stratigraphic code for the Midcontinent.
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