Changes

==Applying abundance patterns==

==Applying abundance patterns==

In the Texas offshore Pliocene and Pleistocene depocenter, patterns of fossil abundance are often the most widely applicable observational criteria for identifying the surfaces that define sequences..<ref name=ch04r6>Armentrout, J., M., 1987, Integration of biostratigraphy and seismic stratigraphy: Pliocene–Pleistocene, Gulf of Mexico: Proceedings, Gulf Coast Section SEPM 8th Annual Research Conference, p. 6–14.</ref><ref name=ch04r7>Armentrout, J., M., 1991, Paleontological constraints on depositional [[modeling]]: examples of integration of biostratigraphy and seismic stratigraphy, Pliocene–Pleistocene, Gulf of Mexico, in Weimer, P., Link, M., H., eds., Seismic Facies and Sedimentary Processes of Submarine Fans and Turbidite Systems: New York, Springer-Verlag, p. 137–170.</ref><ref name=ch04r9>Armentrout, J., M., 1996, High-resolution sequence biostratigraphy: examples from the Gulf of Mexico Plio–Pleistocene, in Howell, J., Aiken, J., eds., High Resolution [[Sequence stratigraphy]]: Innovations and Applications: The Geological Society of London Special Publication 104, p. 65–86.</ref> Sequence boundaries are associated with intervals of few or no in situ fossils and often abundance peaks of reworked fossils in the overlying lowstand systems tract. The transgressive surface is characterized by the stratigraphic upward change from decreasing fossil abundance to increasing abundance. The maximum flooding surface is marked by the maximum fossil abundance interval due to sediment starvation<ref name=ch04r59>Loutit, T., S., Hardenbol, J., Vail, P., R., Baum, G., R., 1988, Condensed sections: the key to age determination and correlation of continental margin sequences: SEPM Special Publication 42, p. 183–213.</ref><ref name=ch04r10 />

In the Texas offshore Pliocene and Pleistocene depocenter, patterns of fossil abundance are often the most widely applicable observational criteria for identifying the surfaces that define sequences.<ref name=ch04r6>Armentrout, J., M., 1987, Integration of biostratigraphy and seismic stratigraphy: Pliocene–Pleistocene, Gulf of Mexico: Proceedings, Gulf Coast Section SEPM 8th Annual Research Conference, p. 6–14.</ref><ref name=ch04r7>Armentrout, J., M., 1991, Paleontological constraints on depositional [[modeling]]: examples of integration of biostratigraphy and seismic stratigraphy, Pliocene–Pleistocene, Gulf of Mexico, in Weimer, P., Link, M., H., eds., Seismic Facies and Sedimentary Processes of Submarine Fans and Turbidite Systems: New York, Springer-Verlag, p. 137–170.</ref><ref name=ch04r9>Armentrout, J., M., 1996, High-resolution sequence biostratigraphy: examples from the Gulf of Mexico Plio–Pleistocene, in Howell, J., Aiken, J., eds., High Resolution [[Sequence stratigraphy]]: Innovations and Applications: The Geological Society of London Special Publication 104, p. 65–86.</ref> Sequence boundaries are associated with intervals of few or no in situ fossils and often abundance peaks of reworked fossils in the overlying lowstand systems tract. The transgressive surface is characterized by the stratigraphic upward change from decreasing fossil abundance to increasing abundance. The maximum flooding surface is marked by the maximum fossil abundance interval due to sediment starvation<ref name=ch04r59>Loutit, T., S., Hardenbol, J., Vail, P., R., Baum, G., R., 1988, Condensed sections: the key to age determination and correlation of continental margin sequences: SEPM Special Publication 42, p. 183–213.</ref><ref name=ch04r10 />

==Example abundance pattern==

==Example abundance pattern==