PANGAEA_972782 Plio-Pleistocene alkenone sea surface temperature and productivity at eastern equatorial Pacific ODP Site 138-849 Kimble, Kristin; Herbert, Timothy D Plio-Pleistocene alkenone sea surface temperature and productivity at eastern equatorial Pacific ODP Site 138-849 2024-11-16 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.972782 Investigator Kristin Kimble kristin_kimble@brown.edu Earth Science Event label Reference/source Sample code/label DEPTH, sediment/rock Depth, composite AGE Alkenone, unsaturation index UK'37 Sea surface temperature Alkenone, C37, per unit sediment mass Accumulation rate, alkenone C37 Alkenone, C37, logarithm geoscientificInformation 138-849B 138-849C 138-849D Alkenone alkenone MAR alkenone SST Drilling/drill rig Eastern Equatorial Pacific Leg138 Sea surface temperature DSDP/ODP/IODP sample designation Gas Chromatograph with Flame Ionization Detector (GC-FID), Agilent Technologies, HP 6890 Calculated from UK'37 (Müller et al, 1998) Joides Resolution 1991-06-07 1991-06-12 Complete 0.18305 0.18321 -110.51971 -110.51945 9.18338 m (DEPTH, sediment/rock) 87.131 m (DEPTH, sediment/rock) ODP Ocean Drilling Program unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 4772 data points text/tab-separated-values Kimble, Kristin; Herbert, Timothy D; Jones, Colin (2024): Pliocene Weakening of Gradients in Temperature but Not in Productivity in the Eastern Equatorial Pacific. Paleoceanography and Paleoclimatology, 39(3), e2023PA004711, https://doi.org/10.1029/2023PA004711 McClymont, Erin L; Rosell-Melé, Antoni (2005): Links between the onset of modern Walker Circulation and the mid-Pleistocene climate transition. Geology, 33(5), 389-392, https://doi.org/10.1130/G21292.1 Herbert, Timothy D; Caballero-Gill, Rocio P; Novak, Joseph B (2021): A revised mid-Pliocene composite section centered on the M2 glacial event for ODP Site 846. Climate of the Past, 17(3), 1385-1394, https://doi.org/10.5194/cp-17-1385-2021 Müller, Peter J; Kirst, Georg; Ruhland, Götz; Von Storch, Isabel; Rosell-Melé, Antoni (1998): Calibration of the alkenone paleotemperature index UK'37 based on core-tops from the eastern South Atlantic and the global ocean (60°N-60°S). Geochimica et Cosmochimica Acta, 62(10), 1757-1772, https://doi.org/10.1016/S0016-7037(98)00097-0

Alkenone biomarker unsaturation estimates (Uk'37) of sea surface temperature (SST) and alkenone concentration and mass accumulation rate (C37total) data are obtained for eastern equatorial Pacific (EEP) Ocean Drilling Program Site 138-849. Newly acquired alkenone biomarker data were generated at Brown University according to sample preparation and analytical methods described in Herbert et al. (2021). The SST and productivity data are sampled at 3-kyr resolution and span four time intervals in the Plio-Pleistocene: a Pliocene interval (3.0-3.6 Ma), a Plio-Pleistocene interval (2.4-2.8 Ma), a mid-Pleistocene interval (1.4-1.7 Ma), and a Late Pleistocene interval (350-650 ka). Gradients in SST and productivity between the two EEP sites can be tracked over the four time intervals listed above. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.972782"!

http://en.wikipedia.org/wiki/Kyr AGE https://doi.org/10.1016/S0016-7037(98)00097-0 Calculated from UK'37 (Müller et al, 1998) https://doi.org/10.1016/S0016-7037(98)00097-0 Calibration of the alkenone paleotemperature index UK'37 based on core-tops from the eastern South Atlantic and the global ocean (60°N-60°S) https://doi.org/10.1029/2023PA004711 Pliocene Weakening of Gradients in Temperature but Not in Productivity in the Eastern Equatorial Pacific https://doi.org/10.1130/G21292.1 Links between the onset of modern Walker Circulation and the mid-Pleistocene climate transition https://doi.org/10.5194/cp-17-1385-2021 A revised mid-Pliocene composite section centered on the M2 glacial event for ODP Site 846 https://hdl.handle.net/10013/epic.27914.d001 DSDP/ODP/IODP sample designation https://www-odp.tamu.edu:443/ ODP https://www-odp.tamu.edu:443/resolutn.html Joides Resolution DIF 9.4 2024-11-16 2026-04-30