Peru Margin Temperature Reconstructions and Stable Isotope and Trace Metal Data During the Holocene Kalansky, J.; Rosenthal, Y.; Herbert, T.D.; Bova, S.C.; Altabet, M.A. Kalansky, J. Rosenthal, Y. Herbert, T.D. Bova, S.C. Altabet, M.A. Other Hydroclimate Reconstruction Sea Surface Temperature Reconstruction earth science/paleoclimate/paleoceanography (delta 18O,Neogloboquadrina dutertrei,null,per mil PDB,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (iron/calcium,Uvigerina sp.,null,micromole per mole,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (delta 13C,Uvigerina sp.,null,per mil PDB,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (delta 18O,Uvigerina sp.,null,per mil PDB,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (age,null,null,calendar year before present,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (aluminum/calcium,Neogloboquadrina dutertrei,null,micromole per mole,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (iron/calcium,Neogloboquadrina dutertrei,null,micromole per mole,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (aluminum/calcium,Uvigerina sp.,null,micromole per mole,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (delta 13C,Neogloboquadrina dutertrei,null,per mil PDB,null,paleoceanography,null,null,N,null) earth science/paleoclimate/climate reconstructions|paleoceanography (sea water temperature,magnesium/calcium,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,subthermocline; using N.dutertrei) earth science/paleoclimate/climate reconstructions|paleoceanography (sea water temperature,magnesium/calcium,null,degree Celsius,null,climate reconstructions|paleoceanography,null,null,N,bottom water; using Uvigerina sp.) earth science/paleoclimate/paleoceanography (depth,null,null,centimeter,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (magnesium/calcium,Neogloboquadrina dutertrei,null,millimole per mole,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleoceanography (magnesium/calcium,Uvigerina sp.,null,millimole per mole,null,paleoceanography,null,null,N,null) earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean earth science/paleoclimate/paleocean (KNR195-5 CDH23>LATITUDE -3.749167>LONGITUDE -81.134167) Temperature reconstructions from a shallow core (375 m) from the Peru Margin are used to test the influence of Subantarctic Mode Water (SAMW) on the eastern equatorial Pacific (EEP) thermostad and thus the effect of southern high latitude climate on interior ocean heat content (OHC). Temperature estimates, based on Mg/Ca measurements of planktonic and benthic foraminifera (Neogloboquadrina dutertrei and Uvigerina spp., respectively) show higher temperatures in the early Holocene, a cooling of ∼2◦ by 8 kyr B.P. and after relatively stable temperatures to the present. The temperature signal is similar in direction and timing to a rather robust Holocene climate signal from the southern high latitudes suggesting it originated there and was advected to the core site in the EEP. Based on the N. dutertrei and Uvigerina Mg/Ca temperature and δ13C records we conclude that SAMW acted as a conduit transporting the southern high latitude climate to the interior of the equatorial Pacific. We propose that the early Holocene warmth is related to a southward migration of the Subtropical Front, which enhanced the influence of warm subtropical water in the region of SAMW formation and was then transported to the EEP thermostad. The early Holocene warmth recorded in the EEP thermostad has a muted sea surface temperature expression indicating this mechanism is important for sequestering heat in the ocean interior. STUDY NOTES: Provided Keywords: Peru Margin, 10-1Ky, N. dutertrei and Uvigerina d18O, d13C and trace metal data. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Kalansky, J. Investigator : Rosenthal, Y. Investigator : Herbert, T.D. Investigator : Bova, S.C. Investigator : Altabet, M.A. 2016-03-10 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/19873 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/kalansky2015/kalansky2015.txt https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/kalansky2015/kalansky2015.txt English https://www.ncdc.noaa.gov/paleo/study/19873 https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/kalansky2015/kalansky2015.txt Kalansky, J., Y. Rosenthal, T. Herbert, S. Bova, and M. Altabet2015Southern Ocean contributions to the Eastern Equatorial Pacific heat content during the HoloceneEarth and Planetary Science Letters424158-16710.1016/j.epsl.2015.05.013 START YEAR: 10606 cal yr BP * END YEAR: 1092 cal yr BP -81.134167 -3.749167 -81.134167 -3.749167