Seki Osamu seki@pop.lowtem.hokudai.ac.jp Schmidt Daniela N D.Schmidt@bristol.ac.uk http://www.gly.bris.ac.uk/people/DNS.html 0000-0001-8419-2721 Schouten Stefan Stefan.Schouten@nioz.nl Hopmans Ellen C ellen.hopmans@nioz.nl 0000-0002-8209-1334 Sinninghe Damsté Jaap S jaap.damste@nioz.nl 0000-0002-8683-1854 Pancost Richard D R.D.Pancost@bristol.ac.uk 0000-0003-0298-4026 2012 (Table S1) Neogene temperature reconstruction of ODP Site 202-1241 dataset https://doi.org/10.1594/PANGAEA.825259 Seki Osamu seki@pop.lowtem.hokudai.ac.jp Schmidt Daniela N D.Schmidt@bristol.ac.uk http://www.gly.bris.ac.uk/people/DNS.html 0000-0001-8419-2721 Schouten Stefan Stefan.Schouten@nioz.nl Hopmans Ellen C ellen.hopmans@nioz.nl 0000-0002-8209-1334 Sinninghe Damsté Jaap S jaap.damste@nioz.nl 0000-0002-8683-1854 Pancost Richard D R.D.Pancost@bristol.ac.uk 0000-0003-0298-4026 2012 Paleoceanographic changes in the Eastern Equatorial Pacific over the last 10 Myr journal article Paleoceanography 27(3) https://doi.org/10.1029/2011PA002158 PA3224 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. -86.4446833333333 -86.4446833333333 5.84283333333333 5.84283333333333 -86.4446833333333 5.84283333333333 2002-05-20T00:00:00 2002-05-20T00:00:00 -2026.8 -2026.8 not specified ODP Ocean Drilling Program https://www-odp.tamu.edu:443/ Ocean Drilling Program, Texas A&M University ODP http://www-odp.tamu.edu/ https://ror.org/01f5ytq51 202-1241 5.8428333333333 -86.444683333333 North Pacific Ocean -2026.8 2002-05-20T00:00:00 Leg202 Leg202 2002-04-08T00:00:00 2002-04-08 2002-06-07T00:00:00 2002-06-07 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Tiedemann, Ralf Tiedemann, Ralf doi:10.2973/odp.proc.ir.202.2003 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Composite Core COMPCORE 932.9 m 810.1 m 86 cores; 799 m cored; 133.9 m drilled; 101.4 % recovery 1029 CC-BY-3.0 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/ AGE Age ka BP http://en.wikipedia.org/wiki/Kyr age http://purl.obolibrary.org/obo/PATO_0000011 Time T http://dbpedia.org/resource/Time Age [ka BP] Sea surface temperature, annual mean SST (1-12) °C annual mean Temperature Θ http://dbpedia.org/resource/Temperature Calculated from UK'37 (Müller et al, 1998) https://doi.org/10.1016/S0016-7037(98)00097-0 Seki Osamu seki@pop.lowtem.hokudai.ac.jp UK'37 SST (1-12) [°C] (UK'37, Calculated from UK'37 ...) Sea surface temperature, annual mean SST (1-12) °C annual mean Temperature Θ http://dbpedia.org/resource/Temperature Calculated from TEX86 (Kim et al., 2010) https://doi.org/10.1016/j.gca.2010.05.027 Seki Osamu seki@pop.lowtem.hokudai.ac.jp TEX86 SST (1-12) [°C] (TEX86, Calculated from TEX86 ...) Sea surface temperature, annual mean SST (1-12) °C annual mean Temperature Θ http://dbpedia.org/resource/Temperature SST from Mg/Ca ratios Seki Osamu seki@pop.lowtem.hokudai.ac.jp Globorotalia tumida, seawater adjusted SST (1-12) [°C] (Globorotalia tumida, seawater...) Sea surface temperature, annual mean SST (1-12) °C annual mean Temperature Θ http://dbpedia.org/resource/Temperature SST from Mg/Ca ratios Seki Osamu seki@pop.lowtem.hokudai.ac.jp Neogloboquadrina dutertrei, seawater adjusted SST (1-12) [°C] (Neogloboquadrina dutertrei, s...) Sea surface temperature, annual mean SST (1-12) °C annual mean Temperature Θ http://dbpedia.org/resource/Temperature SST from Mg/Ca ratios Seki Osamu seki@pop.lowtem.hokudai.ac.jp Globigerinoides sacculifer, seawater adjusted SST (1-12) [°C] (Globigerinoides sacculifer, s...) supplement citable author21852 author25039 author26503 author28188 author29658 author35551 basis5 campaign21714 campaign3384341 event2106512 geocode1599 geocode1600 geocode1601 geocode2205 geocode8128 inst34 journal12511 license101 method10895 method488 method6771 method7332 param1538 pi35551 project3 ref62954 term1073135 term23838 term40958 term41091 term43972 term43975 topotype1