Application of Modern Stratigraphic Techniques: Theory and Case Histories
Application of Modern Stratigraphic Techniques: Theory and Case Histories - Much has been written and debated about the various methodologies applied to modern stratigraphic analysis and the ever increasing complexity of terminologies. However, there exist numerous stratigraphic techniques that are reliant upon precise, quantitative, reproducible data, rather than qualitative interpretive stratigraphic methodologies. Such stratigraphic techniques are applied in an entirely pragmatic non-biased manner within the petroleum industry to provide enhanced stratigraphic understanding of petroleum systems. The petroleum industry is a key driver behind the development of new stratigraphic techniques and a major provider of new stratigraphic data, which has resulted in several of these new techniques having been developed as a requirement to the industry. Furthermore, because techniques, such as isotope chemostratigraphy, elemental chemostratigraphy, magnetic susceptibility stratigraphy, numerical biostratigraphy and heavy mineral stratigraphy are based around precise, quantified and reproducible analytical data, they provide an independent means to test the more interpretive stratigraphic methodologies. This volume attempts an overview of stratigraphic methodologies, but largely focuses on data-generative stratigraphic techniques such as chemostratigraphy, magnetic susceptibility stratigraphy, numerical biostratigraphy and heavy mineral stratigraphy. Where appropriate, each paper discusses data generation methods including sample preparation and analytical methods as well outlining data interpretation methods. This is followed by case histories that demonstrate how those data are used to resolve stratigraphic problems, commonly using material derived from petroleum basins around the World.
Magnetostratigraphy Susceptibility Used for High-Resolution Correlation Among Paleocene–Eocene Boundary Sequences in Egypt, Spain, and the U.S.A.
Published:January 01, 2010
Brooks B. Ellwood, Aziz M. Kafafy, Ahmed Kassab, Jonathan H. Tomkin, Abdelaziz Abdeldayem, Nageh Obaidalla, Kelli W. Randall, David E. Thompson, 2010. "Magnetostratigraphy Susceptibility Used for High-Resolution Correlation Among Paleocene–Eocene Boundary Sequences in Egypt, Spain, and the U.S.A.", Application of Modern Stratigraphic Techniques: Theory and Case Histories, Kenneth T. Ratcliffe, Brian A. Zaitlin
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The magnetostratigraphy susceptibility technique is used to establish high-resolution correlation among Paleocene–Eocene boundary sequences in Egypt, Spain, and the U.S.A. This work initially focuses on the Global boundary Stratotype Section and Point (GSSP), defining the base of the Ypresian Stage (lowest Eocene), located in the Dababiya Quarry near Luxor in Upper Egypt. The base of the Eocene represents the beginning of the Paleocene–Eocene Thermal Maximum (PETM) identified by a negative carbon isotope (δ13C) excursion. While onset of the CIE is somewhat gradual in most reported Paleocene–Eocene (P–E) sections, at the GSSP it is very abrupt and begins...