# Garrison Basin, Gulf of Mexico d18O and Mg/Ca in three multicores and stacked SST/d18Osw/SSS reconstructions spanning the past 4.4 kyrs #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # NOTE: Please cite original publication, online resource and date accessed when using this data. # If there is no publication information, please cite Investigator, title, online resource and date accessed. # # Description/Documentation lines begin with # # Data lines have no # # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/23373 # Description: NOAA Landing Page # Online_Resource: http://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/by_contributor/thirumalai2018/thirumalai2018-mca.txt # Description: NOAA location of the template # # Archive: Paleoceanography # # Dataset_DOI: # # Parameter_Keywords: oxygen isotopes, trace metals in carbonates, age control, geochemistry #--------------------------------------- # Contribution_Date # Date: 2018-02-05 #--------------------------------------- # File_Last_Modified_Date # Date: 2018-02-05 #--------------------------------------- # Title # Study_Name: Garrison Basin, Gulf of Mexico d18O and Mg/Ca in three multicores and stacked SST/d18Osw/SSS reconstructions spanning the past 4.4 kyrs #--------------------------------------- # Investigators # Investigators: Thirumalai, Kaustubh; Quinn, Terrence M.; Okumura, Yuko; Richey, Julie N.; Partin, Judson W.; Poore, Richard Z.; Moreno-Chamarro, Eduardo; #--------------------------------------- # Description_Notes_and_Keywords # Description: Sea-surface temperature, d18Osw, and sea-surface salinity reconstructions from the northern Gulf of Mexico generated from paired Mg/Ca-dą8O measurements in G. ruber (White) from three Garrison Basin sediment cores spanning the last 4,400 years # Provided Keywords: Gulf of Mexico, sea-surface temperature, sea-surface salinity, G. ruber, foraminifera, late Holocene #--------------------------------------- # Publication # Authors: Thirumalai, K., T.M. Quinn, Y. Okumura, J.N. Richey, J.W. Partin, R.Z. Poore, and E. Moreno-Chamarro # Published_Date_or_Year: 2018 # Published_Title: Pronounced centennial-scale Atlantic Ocean climate variability correlated with Western Hemisphere hydroclimate # Journal_Name: Nature Communications # Volume: 9 # Edition: # Issue: 1 # Pages: 1-11 # Report Number: 392 # DOI: 10.1038/s41467-018-02846-4 # Online_Resource: # Full_Citation: # Abstract: Surface-ocean circulation in the northern Atlantic Ocean influences Northern Hemisphere climate. Century-scale circulation variability in the Atlantic Ocean, however, is poorly con- strained due to insufficiently-resolved paleoceanographic records. Here we present a repli- cated reconstruction of sea-surface temperature and salinity from a site sensitive to North Atlantic circulation in the Gulf of Mexico which reveals pronounced centennial-scale varia- bility over the late Holocene. We find significant correlations on these timescales between salinity changes in the Atlantic, a diagnostic parameter of circulation, and widespread pre- cipitation anomalies using three approaches: multiproxy synthesis, observational datasets, and a transient simulation. Our results demonstrate links between centennial changes in northern Atlantic surface-circulation and hydroclimate changes in the adjacent continents over the late Holocene. Notably, our findings reveal that weakened surface-circulation in the Atlantic Ocean was concomitant with well-documented rainfall anomalies in the Western Hemisphere during the Little Ice Age. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: # Grant: #--------------------------------------- # Site Information # Site_Name: Garrison Basin # Location: Gulf of Mexico # Country: USA # Northernmost_Latitude: 26.66 # Southernmost_Latitude: 26.66 # Easternmost_Longitude: -93.92 # Westernmost_Longitude: -93.92 # Elevation: -1776 #--------------------------------------- # Data_Collection # Collection_Name: 2010-GB2-MCA Thirumalai2018 # First_Year: # Last_Year: # Time_Unit: # Core_Length: 0.6 # Notes: #--------------------------------------- # Chronology_Information # Chronology: # # core ID name of multicore dated # core.sample Interval of sampling in core # depth_top Top depth of sample interval (cm) # depth_bottom Bottom depth of sample interval (cm) # depth_mid Middle depth of sampled interval (cm) # mat.dated Material dated # 14C.raw Conventional radiocarbon age, years before 1950AD # 14C.raw_err Radiocarbon age, standard error # # core core.sample depth_bottom depth_top depth_mid mat.dated 14C.raw 14C.raw_err # 2010-GB2-MCA 2010-GB2-MCA 0.0-0.5 0.5 0 0.25 Mixed Planktics >Modern 30 # 2010-GB2-MCA 2010-GB2-MCA 9.5-10.0 10 9.5 9.75 Mixed Planktics 855 30 # 2010-GB2-MCA 2010-GB2-MCA 19.5-20.0 20 19.5 19.75 Mixed Planktics 1450 30 # 2010-GB2-MCA 2010-GB2-MCA 34.5-35 35 34.5 34.75 Mixed Planktics 2405 30 # 2010-GB2-MCA 2010-GB2-MCA 49.5-50 50 49.5 49.75 Mixed Planktics 3560 35 # 2010-GB2-MCA 2010-GB2-MCA 59.5-60 60 59.5 59.75 Mixed Planktics 4250 30 # 2010-GB2-MCB 2010-GB2-MCB 0-0.25 0.25 0 0.125 Mixed Planktics >Modern 30 # 2010-GB2-MCB 2010-GB2-MCB 11-11.25 11.25 11 11.125 Mixed Planktics 910 30 # 2010-GB2-MCB 2010 GB2 MCB 34-34.25 34.25 34 34.125 Mixed Planktics 2280 30 # 2010-GB2-MCC 2010 GB2 MCC 0-0.5 0.5 0 0.25 Mixed Planktics >Modern 30 # 2010-GB2-MCC 2010 GB2 MCC 9.5-10 10 9.5 9.75 Mixed Planktics 950 30 # 2010-GB2-MCC 2010 GB2 MCC 29.5-30 30 29.5 29.75 Mixed Planktics 2065 30 # #--------------------------------------- # Variables # Data variables follow that are preceded by "##" in columns one and two. # Variables list, one per line, shortname-tab-longname components (9 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data) ## core core ID,,,,,paleoceanography,,,C, ## sample sample ID,,,,,paleoceanography,,,C, ## mid_depth depth,,,cm,,paleoceanography,,,N, ## Mg-Ca magnesium/calcium,Globigerinoides ruber white,,mmol/mol,,paleoceanography,,inductively coupled plasma optical emission spectrophotometry,N, ## d18O-ruber delta 18O,Globigerinoides ruber white,,per mil VPDB,,paleoceanography,,isotope ratio mass spectrometry,N, #------------------------ # Data # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Value: NA core sample mid_depth Mg-Ca d18O-ruber 2010-GB2-MCA 2010-GB2-MCA 0.0-0.5 0.25 4.91 -1.50 2010-GB2-MCA 2010-GB2-MCA 0.5-1.0 0.75 4.61 -0.78 2010-GB2-MCA 2010-GB2-MCA 1.0-1.5 1.25 4.42 -1.03 2010-GB2-MCA 2010-GB2-MCA 1.5-2.0 1.75 3.98 -1.15 2010-GB2-MCA 2010-GB2-MCA 2.0-2.5 2.25 4.09 -1.08 2010-GB2-MCA 2010-GB2-MCA 2.5-3.0 2.75 3.83 -0.71 2010-GB2-MCA 2010-GB2-MCA 3.0-3.5 3.25 4.18 -1.18 2010-GB2-MCA 2010-GB2-MCA 3.5-4.0 3.75 4.09 -1.05 2010-GB2-MCA 2010-GB2-MCA 4.0-4.5 4.25 4.13 -1.11 2010-GB2-MCA 2010-GB2-MCA 4.5-5.0 4.75 4.09 -1.06 2010-GB2-MCA 2010-GB2-MCA 5.0-5.5 5.25 3.99 -1.28 2010-GB2-MCA 2010-GB2-MCA 5.5-6.0 5.75 3.84 -1.38 2010-GB2-MCA 2010-GB2-MCA 6.0-6.5 6.25 4.17 -1.43 2010-GB2-MCA 2010-GB2-MCA 6.5-7.0 6.75 4.30 -1.27 2010-GB2-MCA 2010-GB2-MCA 7.0-7.5 7.25 4.27 -1.17 2010-GB2-MCA 2010-GB2-MCA 7.5-8.0 7.75 4.12 -1.14 2010-GB2-MCA 2010-GB2-MCA 8.0-8.5 8.25 3.53 -1.06 2010-GB2-MCA 2010-GB2-MCA 8.5-9.0 8.75 3.51 -1.20 2010-GB2-MCA 2010-GB2-MCA 9.0-9.5 9.25 3.39 -1.06 2010-GB2-MCA 2010-GB2-MCA 9.5-10.0 9.75 3.76 -1.35 2010-GB2-MCA 2010-GB2-MCA 10.0-10.5 10.25 3.40 -0.96 2010-GB2-MCA 2010-GB2-MCA 10.5-11.0 10.75 4.10 -1.01 2010-GB2-MCA 2010-GB2-MCA 11.0-11.5 11.25 3.84 -1.13 2010-GB2-MCA 2010-GB2-MCA 11.5-12.0 11.75 3.39 -1.01 2010-GB2-MCA 2010-GB2-MCA 12.0-12.5 12.25 3.92 -0.50 2010-GB2-MCA 2010-GB2-MCA 12.5-13.0 12.75 3.81 -1.07 2010-GB2-MCA 2010-GB2-MCA 13.0-13.5 13.25 3.98 -1.09 2010-GB2-MCA 2010-GB2-MCA 13.5-14.0 13.75 3.74 -1.20 2010-GB2-MCA 2010-GB2-MCA 14.0-14.5 14.25 4.20 -1.23 2010-GB2-MCA 2010-GB2-MCA 14.5-15.0 14.75 4.20 -1.31 2010-GB2-MCA 2010-GB2-MCA 15.0-15.5 15.25 4.08 -1.21 2010-GB2-MCA 2010-GB2-MCA 15.5-16.0 15.75 3.82 -1.11 2010-GB2-MCA 2010-GB2-MCA 16.0-16.5 16.25 3.90 -1.22 2010-GB2-MCA 2010-GB2-MCA 16.5-17.0 16.75 3.57 -0.89 2010-GB2-MCA 2010-GB2-MCA 17.0-17.5 17.25 3.57 -0.97 2010-GB2-MCA 2010-GB2-MCA 17.5-18.0 17.75 4.34 -0.84 2010-GB2-MCA 2010-GB2-MCA 18.0-18.5 18.25 4.23 -1.00 2010-GB2-MCA 2010-GB2-MCA 18.5-19.0 18.75 4.75 -0.89 2010-GB2-MCA 2010-GB2-MCA 19.0-19.5 19.25 4.65 -1.07 2010-GB2-MCA 2010-GB2-MCA 19.5-20.0 19.75 4.41 -1.09 2010-GB2-MCA 2010-GB2-MCA 20.0-20.5 20.25 4.02 -1.04 2010-GB2-MCA 2010-GB2-MCA 20.5-21.0 20.75 4.43 -1.23 2010-GB2-MCA 2010-GB2-MCA 21.0-21.5 21.25 3.81 -1.21 2010-GB2-MCA 2010-GB2-MCA 21.5-22.0 21.75 3.44 -1.02 2010-GB2-MCA 2010-GB2-MCA 22.0-22.5 22.25 4.12 -1.08 2010-GB2-MCA 2010-GB2-MCA 22.5-23.0 22.75 3.99 -1.24 2010-GB2-MCA 2010-GB2-MCA 23.0-23.5 23.25 4.52 -1.10 2010-GB2-MCA 2010-GB2-MCA 23.5-24.0 23.75 4.55 -1.03 2010-GB2-MCA 2010-GB2-MCA 24.0-24.5 24.25 3.79 -1.23 2010-GB2-MCA 2010-GB2-MCA 24.5-25.0 24.75 3.81 -1.10 2010-GB2-MCA 2010-GB2-MCA 25.0-25.5 25.25 3.94 -1.09 2010-GB2-MCA 2010-GB2-MCA 25.5-26.0 25.75 4.22 -1.03 2010-GB2-MCA 2010-GB2-MCA 26.0-26.5 26.25 4.12 -1.08 2010-GB2-MCA 2010-GB2-MCA 26.5-27.0 26.75 4.30 -1.01 2010-GB2-MCA 2010-GB2-MCA 27.0-27.5 27.25 3.95 -0.95 2010-GB2-MCA 2010-GB2-MCA 27.5-28.0 27.75 4.18 -0.57 2010-GB2-MCA 2010-GB2-MCA 28.0-28.5 28.25 4.16 -0.85 2010-GB2-MCA 2010-GB2-MCA 28.5-29.0 28.75 3.88 -0.93 2010-GB2-MCA 2010-GB2-MCA 29.0-29.5 29.25 4.14 -0.98 2010-GB2-MCA 2010-GB2-MCA 29.5-30.0 29.75 4.00 -1.07 2010-GB2-MCA 2010-GB2-MCA 30.0-30.5 30.25 4.21 -1.08 2010-GB2-MCA 2010-GB2-MCA 30.5-31.0 30.75 4.12 -1.02 2010-GB2-MCA 2010-GB2-MCA 31.0-31.5 31.25 4.36 -1.17 2010-GB2-MCA 2010-GB2-MCA 31.5-32.0 31.75 3.87 -1.07 2010-GB2-MCA 2010-GB2-MCA 32.0-32.5 32.25 3.93 -1.10 2010-GB2-MCA 2010-GB2-MCA 32.5-33.0 32.75 4.12 -1.04 2010-GB2-MCA 2010-GB2-MCA 33.0-33.5 33.25 4.01 -0.76 2010-GB2-MCA 2010-GB2-MCA 33.5-34.0 33.75 4.12 -1.15 2010-GB2-MCA 2010-GB2-MCA 34.0-34.5 34.25 4.19 -0.93 2010-GB2-MCA 2010-GB2-MCA 34.5-35.0 34.75 4.04 -1.28 2010-GB2-MCA 2010-GB2-MCA 35.0-35.5 35.25 3.88 -0.99 2010-GB2-MCA 2010-GB2-MCA 35.5-36.0 35.75 3.70 -1.21 2010-GB2-MCA 2010-GB2-MCA 36.0-36.5 36.25 3.88 -1.03 2010-GB2-MCA 2010-GB2-MCA 36.5-37.0 36.75 3.57 -1.24 2010-GB2-MCA 2010-GB2-MCA 37.0-37.5 37.25 3.68 -1.49 2010-GB2-MCA 2010-GB2-MCA 37.5-38.0 37.75 4.12 -1.44 2010-GB2-MCA 2010-GB2-MCA 38.0-38.5 38.25 4.11 -0.89 2010-GB2-MCA 2010-GB2-MCA 38.5-39.0 38.75 4.35 -1.19 2010-GB2-MCA 2010-GB2-MCA 39.0-39.5 39.25 4.24 -1.28 2010-GB2-MCA 2010-GB2-MCA 39.5-40.0 39.75 4.26 -1.30 2010-GB2-MCA 2010-GB2-MCA 40.0-40.5 40.25 4.12 -1.01 2010-GB2-MCA 2010-GB2-MCA 40.5-41.0 40.75 4.35 -1.06 2010-GB2-MCA 2010-GB2-MCA 41.0-41.5 41.25 4.42 -1.06 2010-GB2-MCA 2010-GB2-MCA 41.5-42.0 41.75 4.12 -0.99 2010-GB2-MCA 2010-GB2-MCA 42.0-42.5 42.25 4.52 -1.09 2010-GB2-MCA 2010-GB2-MCA 42.5-43.0 42.75 3.98 -1.49 2010-GB2-MCA 2010-GB2-MCA 43.0-43.5 43.25 4.30 -1.23 2010-GB2-MCA 2010-GB2-MCA 43.5-44.0 43.75 4.13 -1.12 2010-GB2-MCA 2010-GB2-MCA 44.0-44.5 44.25 4.09 -1.23 2010-GB2-MCA 2010-GB2-MCA 44.5-45.0 44.75 4.32 -1.41 2010-GB2-MCA 2010-GB2-MCA 45.0-45.5 45.25 3.63 -1.38 2010-GB2-MCA 2010-GB2-MCA 45.5-46.0 45.75 3.98 -1.36 2010-GB2-MCA 2010-GB2-MCA 46.0-46.5 46.25 4.12 -0.77 2010-GB2-MCA 2010-GB2-MCA 46.5-47.0 46.75 3.45 -1.05 2010-GB2-MCA 2010-GB2-MCA 47.0-47.5 47.25 4.23 -1.35 2010-GB2-MCA 2010-GB2-MCA 47.5-48.0 47.75 4.12 -0.80 2010-GB2-MCA 2010-GB2-MCA 48.0-48.5 48.25 4.02 -1.01 2010-GB2-MCA 2010-GB2-MCA 48.5-49.0 48.75 3.82 -1.22 2010-GB2-MCA 2010-GB2-MCA 49.0-49.5 49.25 4.29 -0.81 2010-GB2-MCA 2010-GB2-MCA 49.5-50.0 49.75 4.12 -0.92 2010-GB2-MCA 2010-GB2-MCA 50.0-50.5 50.25 3.94 -1.19 2010-GB2-MCA 2010-GB2-MCA 50.5-51.0 50.75 3.79 -1.01 2010-GB2-MCA 2010-GB2-MCA 51.0-51.5 51.25 3.57 -0.91 2010-GB2-MCA 2010-GB2-MCA 51.5-52.0 51.75 3.95 -1.31 2010-GB2-MCA 2010-GB2-MCA 52.0-52.5 52.25 4.12 -1.21 2010-GB2-MCA 2010-GB2-MCA 52.5-53.0 52.75 3.87 -1.32 2010-GB2-MCA 2010-GB2-MCA 53.0-53.5 53.25 3.77 -1.05 2010-GB2-MCA 2010-GB2-MCA 53.5-54.0 53.75 4.12 -0.77 2010-GB2-MCA 2010-GB2-MCA 54.0-54.5 54.25 3.58 -1.20 2010-GB2-MCA 2010-GB2-MCA 54.5-55.0 54.75 3.92 -1.04 2010-GB2-MCA 2010-GB2-MCA 55.0-55.5 55.25 4.11 -0.90 2010-GB2-MCA 2010-GB2-MCA 55.5-56.0 55.75 4.01 -1.12 2010-GB2-MCA 2010-GB2-MCA 56.0-56.5 56.25 4.17 -1.07 2010-GB2-MCA 2010-GB2-MCA 56.5-57.0 56.75 4.23 -1.04 2010-GB2-MCA 2010-GB2-MCA 57.0-57.5 57.25 3.87 -1.23 2010-GB2-MCA 2010-GB2-MCA 57.5-58.0 57.75 3.79 -0.77 2010-GB2-MCA 2010-GB2-MCA 58.0-58.5 58.25 4.71 -1.15 2010-GB2-MCA 2010-GB2-MCA 58.5-59.0 58.75 4.23 -1.00 2010-GB2-MCA 2010-GB2-MCA 59.0-59.5 59.25 4.12 -1.15 2010-GB2-MCA 2010-GB2-MCA 59.5-60.0 59.75 4.34 -1.04