%X 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 (δ18O and δ13C) record increasing δ18O and δ13 C 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. © 2021 The Author(s). %K Boreholes; Isotopes; Stratigraphy; Submarine geology, Continental scale; Lithostratigraphy; Marine sediments; Microfossils; Oligocene; Sediment deposits; Stable isotopes; Sunda arc; Time interval; Volcanic deposits, Glacial geology, biostratigraphy; foraminifera; lithostratigraphy; marine sediment; microfossil; reconstruction; stable isotope; volcaniclastic deposit; volcanism, Greater Sunda Islands; Java; Sunda Isles, Foraminifera %L scholars14271 %J Journal of the Geological Society %O cited By 2 %N 6 %R 10.1144/jgs2021-006 %D 2021 %A H.K. Coxall %A T.D. Jones %A A.P. Jones %A P. Lunt %A I. Macmillan %A G.I. Marliyani %A C.J. Nicholas %A A. O�halloran %A E. Piga %A P. Sanyoto %A W. Rahardjo %A P.N. Pearson %I Geological Society of London %V 178 %T The eocene�oligocene transition in nanggulan, java: Lithostratigraphy, biostratigraphy and foraminiferal stable isotopes