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Supplementary Fig. 3. Foraminifera stable isotopes across the NKK-1 borehole EOT succession on the depth scale. The Eocene–Oligocene Transition in Nanggulan, Java: lithostratigraphy, biostratigraphy and foraminiferal stable isotopes

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posted on 19.05.2021, 11:48 by Helen K. Coxall, Tom Dunkley Jones, Amy P. Jones, Peter Lunt, Ian MacMillan, Gayatri I. Marliyani, Christopher J. Nicholas, Aoife O'Halloran, Emanuela Piga, Prihardjo Sanyoto, Wartono Rahardjo, Paul N. Pearson
Supplementary Fig. 3. Foraminifera stable isotopes across the NKK-1 borehole EOT succession on the depth scale. The zone of faded isotopic data points highlights where extensive infilling with sparry calcite is associated with isotopically depleted ε18O and ε13C values even in separated test fragments (c. 53–47 mbs), masking the primary foraminiferal/ocean signal. The dashed vertical pale blue and pale grey lines (planktonic and benthic respectively) represent late Eocene ‘base-line’ ‘unaltered values’ used as a threshold for determining which data points contain significant diagenetic calcite bias and, thus, should be excluded from our interpretation (see Supplementary Fig. 3).

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