PANGAEA_825259 (Table S1) Neogene temperature reconstruction of ODP Site 202-1241 Seki, Osamu; Schmidt, Daniela N; Schouten, Stefan; Hopmans, Ellen C; Sinninghe Damsté, Jaap S; Pancost, Richard D (Table S1) Neogene temperature reconstruction of ODP Site 202-1241 2012 PANGAEA Dataset Supplement to: Seki, Osamu; Schmidt, Daniela N; Schouten, Stefan; Hopmans, Ellen C; Sinninghe Damsté, Jaap S; Pancost, Richard D (2012): Paleoceanographic changes in the Eastern Equatorial Pacific over the last 10 Myr. Paleoceanography, 27(3), PA3224, https://doi.org/10.1029/2011PA002158 https://doi.pangaea.de/10.1594/PANGAEA.825259 Investigator Osamu Seki seki@pop.lowtem.hokudai.ac.jp Earth Science AGE Sea surface temperature, annual mean geoscientificInformation 202-1241 Composite Core Leg202 Calculated from UK'37 (Müller et al, 1998) Calculated from TEX86 (Kim et al., 2010) SST from Mg/Ca ratios Joides Resolution 2002-05-20 2002-05-20 Complete 5.84283333333333 5.84283333333333 -86.4446833333333 -86.4446833333333 ODP Ocean Drilling Program unrestricted CC-BY-3.0: Creative Commons Attribution 3.0 Unported 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 1029 data points text/tab-separated-values

To examine the Late Neogene evolution of tropical Pacific oceanography, we determined multiple geochemical proxy records for temperature (UK37' and TEX86H indices) and primary productivity (algal biomarkers and diol indices) in sediments recovered at ODP Site 1241 in the East Equatorial Pacific (EEP) spanning a record of the last 10 Myr. The TEX86H temperatures are lower than those recorded by UK37' indices, exhibiting large fluctuations and suggesting strong warming during the Mid Pliocene Warm Period (MPWP; 4.5-3.2 Ma) and significantly colder temperature during the Late Miocene cooling period (7-5 Ma) and after the Middle Pliocene Warm Period (MPWP). Such variations could reflect changes in the EEP thermocline temperatures, but we suggest that they instead reflect changes in the depth of export production of glycerol dialkyl glycerol tetraether lipids in response to changes in the upper ocean structure. A combination of temperature records, inferred to represent different and likely varying depths in the water column, as well as algal biomarker records for export production and ecosystem structure, suggest that both productivity and inference upwelling were reduced in the EEP during warmer periods, such as the MPWP and prior to 7 Ma. In contrast, stronger upwelling conditions and associated increased productivity likely prevailed from 7 to 5 Ma and for the past 3 Myr, both corresponding to globally cool intervals. A further increase in EEP productivity occurred at ca 1.8 Ma, coincident with the development of the E-W Pacific SST gradient. These results confirm previous work that protracted El Niño-like conditions prevailed during warmer intervals of the Pliocene before ultimately descending into the current climate state. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.825259"!

http://en.wikipedia.org/wiki/Kyr AGE https://doi.org/10.1016/j.gca.2010.05.027 Calculated from TEX86 (Kim et al., 2010) https://doi.org/10.1016/S0016-7037(98)00097-0 Calculated from UK'37 (Müller et al, 1998) https://doi.org/10.1029/2011PA002158 Paleoceanographic changes in the Eastern Equatorial Pacific over the last 10 Myr https://www-odp.tamu.edu:443/ ODP https://www-odp.tamu.edu:443/resolutn.html Joides Resolution DIF 9.4 2026-05-01