التفاصيل البيبلوغرافية
| العنوان: |
The Eocene−Oligocene transition in Nanggulan, Java: lithostratigraphy, biostratigraphy and foraminiferal stable isotopes. |
| المؤلفون: |
Coxall, Helen K., Jones, Tom Dunkley, Jones, Amy P., Lunt, Peter, MacMillan, Ian, Marliyani, Gayatri I., Nicholas, Christopher J., O'Halloran, Aoife, Piga, Emanuela, Sanyoto, Prihardjo, Rahardjo, Wartono, Pearson, Paul N. |
| المصدر: |
Journal of the Geological Society; Nov2021, Vol. 178 Issue 6, p1-30, 30p |
| مصطلحات موضوعية: |
EOCENE-Oligocene boundary, STABLE isotopes, BIOSTRATIGRAPHY, MARINE sediments, CARBON isotopes, FOSSIL microorganisms |
| مصطلحات جغرافية: |
ANTARCTICA |
| مستخلص: |
The Nanggulan section in south central Java comprises open marine sediments and volcanic deposits of Eocene–Oligocene age that accumulated in a marginal basin within the young Sunda Arc complex. A new borehole captures the stratigraphy and showcases the exceptional preservation of calcareous microfossils across an apparently complete Eocene–Oligocene Transition (EOT), a time interval significant for the initiation of continental-scale glaciation on Antarctica. Low-resolution benthic and planktonic foraminifera oxygen and carbon stable isotopes (δ 18O and δ 13C) record increasing δ 18O and δ 13C in the basal Oligocene, allowing correlation to global records. Isotopic values imply warm temperatures and relatively high nutrients along the SE Java margin. The Nanggulan EOT is a valuable archive for reconstructing ocean–climate behaviour and plankton evolution and extinction in the Indo-Pacific Warm Pool. The borehole also adds to understanding of the early stages of Sunda Arc volcanism. Supplementary material: Supplementary figures, tables and appendices are available at https://doi.org/10.6084/m9.figshare.c.5429453 [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
