[{"name":"coxall-2021-java-1","title":"Eocene-Oligocene age planktonic and benthic foraminifera oxygen and carbon stable isotopes from the NKK-1 borehole, central Java","summary":"This data set involves geochemical paleoceanographic proxy records from a borehole drilled in the Nanggulan region of central Java, Indonesia, and includes stable isotope ratios (\u03b4\u00b9\u2078O and \u03b4\u00b9\u00b3C) measured on microscopic marine fossil plankton shells.\r\n\r\nThe 'Nanggulan Section' is a geological sequence of predominantly marine sediments with interbedded volcanic deposits of Eocene-Oligocene age, now uplifted on to land. The records span the time period between ca. 31\u2060\u200a\u2013\u200a\u206035.5 million years ago, a phase of geological time of significant interest to climate scientists because it marks the initiation of continental scale glaciation on Antarctica.\r\n\r\nJava is of special importance because this region today, and in the past, sits in the Indo-Pacific warm pool, where the warmest sea surface temperatures for the whole planet are found. One question we can answer with these data is how much warmer was the warm-pool under Eocene greenhouse climate conditions.\r\n","citations":"Coxall HK, Dunkley Jones T, Jones AP, Lunt P, MacMillan I, Marliyani GI, Nicholas CJ, O\u2019Halloran A, Piga E, Sanyoto P, Rahardjo W, Pearson PN (2021) The Eocene\u2212Oligocene Transition in Nanggulan, Java: lithostratigraphy, biostratigraphy and foraminiferal stable isotopes. Journal of the Geological Society. doi:10.1144\/jgs2021-006","comments":"Please, cite the study by Coxall et al. (2021) when using this dataset.\r\n\r\nThe data can be used for identifying the signal of Antarctic glaciation, which can be correlated globally to similar records from other sites, and for reconstructing the local ocean-climate conditions, including sea surface temperature, patterns of sea surface salinity, ocean nutrients, ocean circulation and the strength of ocean stratification.\r\n\r\nLocation of NKK-1 borehole, Kali Kunir, Nanggulan Province, Central Java, Indonesia: 7.73844\u00b0 S, 110.18574\u00b0 E.\r\n","category":"Marine","subcategory":"Sediment cores","keywords":"Geochemical proxy data; Palaeoceanography; Paleoclimate; Stable isotopes; Foraminifera; Eocene; Oligocene; Marine geology; Java; Warm-pool; Greenhouse; Antarctica; Volcanoes","scientist":"Helen K. Coxall, Amy P. Jones, Tom Dunkley Jones, Paul N. Pearson","firstname":"Helen","lastname":"Coxall","address":"Department of Geological Sciences; Stockholm University","postalcode":"SE-106 91","city":"Stockholm","province":"","country":"Sweden","parameters":"Earth science > Climate indicators > Paleoclimate indicators","location":"Ocean > Indian Ocean > Indonesia","progress":"Completed","language":"English","project":"This study was funded primarily by the UK Natural Environment Research Council (NERC) Small Grant NE\/C514523 \u2018Eocene\u2013Oligocene climate change in Indonesia\u2019 awarded to Paul Pearson. Helen Coxall's participation in the fieldwork and generation of the stable isotope data archived here was supported by a Royal Society University Research Fellowship awarded to Helen. Fieldwork in Java was additionally supported by Gadjah Mada University, the Indonesian Geological Research and Development Centre (GRDC), Bandung, and private company PT PetroPEP.","publisher":"Bolin Centre Database","version":"1","constrains":"","access":""}]