The use of chemostratigraphy to refine ambiguous sequence stratigraphic correlations in marine mudrocks. An example from the Woodford Shale, Oklahoma, USA
figureposted on 02.03.2016 by B.W. Turner, J.A. Tréanton, R.M. Slatt
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Online Supplemental Figure 2: The chemofacies profile for the Hunton Anticline Quarry–Outcrop D. Hierarchical clustering analysis subdivided the geochemical profiles into seven distinct chemofacies. The sample resolution for this chemofacies profile is 1 foot (30cm). This profile is generally similar to the profile collected for Hunton Anticline Quarry–Outcrop B. There is a 23ft (7m) shift between these two outcrops, with outcrop D being stratigraphically lower. At the base of this section, there are several alternating zones of chemofacies that are rich in bottom water anoxia proxies and zones indicating a higher degree of circulation.