# Leaf wax C30 n-alkane data from Indonesian marine sediments over the past 28,000 years #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # Template Version 4.0 # Encoding: UTF-8 # NOTE: Please cite original publication, NOAA Landing Page URL, dataset and publication DOIs (where available), and date accessed when using downloaded data. # If there is no publication information, please cite investigator, study title, NOAA Landing Page URL, and date accessed. # # Description/Documentation lines begin with '#' followed by a space # Data lines have no '#' # # NOAA_Landing_Page: https://www.ncdc.noaa.gov/access/paleo-search/study/35655 # Landing_Page_Description: NOAA Landing Page of this file's parent study, which includes all study metadata. # # Study_Level_JSON_Metadata: https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/json/noaa-ocean-35655.json # Study_Level_JSON_Description: JSON metadata of this data file's parent study, which includes all study metadata. # # Data_Type: Paleoceanography # # Dataset_DOI: 10.25921/z1n2-9309 # # Science_Keywords: Glacial, Heinrich Events, Last Glacial Maximum, Monsoon, Warm Pool, Tropics, Other Hydroclimate Reconstruction #--------------------------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/oppo2022/bj803-136ggc_oppo2022.txt # Data_Download_Description: NOAA Template File; Site BJ803-136GGC C30 n-alkane Data # #--------------------------------------- # Contribution_Date # Date: 2022-02-23 #--------------------------------------- # File_Last_Modified_Date # Date: 2022-02-23 #--------------------------------------- # Title # Study_Name: Leaf wax C30 n-alkane data from Indonesian marine sediments over the past 25,000 years #--------------------------------------- # Investigators # Investigators: Oppo, Delia; Galy, Valier; Schefuss, Enno; Mohatdi, Mahyar; Rosenthal, Yair; Dubois, Natalie, Arbuszewski, Jennifer #--------------------------------------- # Description_Notes_and_Keywords # Description: Chronology Data for Core BJ803-91GGCC is from: Dubois, N., D.W. Oppo, V. Galy, M. Mohtadi, S. van der Kaars, J.E. Tierney, Y. Rosenthal, T.I. Eglinton, A. Lueckge, and B.K. Linsley. 2014. Indonesian vegetation response to changes in rainfall seasonality over the past 25,000 years. Nature Geoscience, 7, 513-517. doi: 10.1038/ngeo2182. Chronology Data for Core GEO10069-3 is from: Fern T. Gibbons, Delia W. Oppo, Mahyar Mohtadi, Yair Rosenthal, Jun Cheng, Zhengyu Liu, Braddock K. Linsley. 2014. Deglacial d18O and hydrologic variability in the tropical Pacific and Indian Oceans. Earth and Planetary Science Letters, 387, 240-251. doi: 10.1016/j.epsl.2013.11.032. C30 n-alkanoic data; We report values for the C30 n-alkanoic acid corrected for methylation. Sediments (5-10g) were freeze-dried and homogenized before lipid extraction using a microwave-assisted reaction system. Fatty acids were isolated from the total lipid extract by aminopropyl-silica-gel column chromatography, methylated with methanol of known isotopic composition, and then further purified by aminopropyl-silica-gel chromatography and silver nitrate-silica-gel chromatography. The purified compound class containing saturated straight chain fatty acids was analyzed by gas chromatography-isotope ratio mass spectrometry (GC-irMS) on a Finnigan Delta V Plus instrument at the Woods Hole Oceanographic Institution using established methods (Fornace et al., 2016). #--------------------------------------- # Publication # Authors: # Published_Date_or_Year: # Published_Title: # Journal_Name: # Volume: # Edition: # Issue: # Pages: # Report_Number: # DOI: # Online_Resource: # Full_Citation: # Abstract: #--------------------------------------- # Funding_Agency # Funding_Agency_Name: National Science Foundation # Grant: OCE-1060743, OCE-1657771 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: National Oceanic and Atmospheric Administration # Grant: C&GC Postdoctoral Fellowship #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Woods Hole Oceanographic Institution # Grant: Mellon Joint Initiatives Award #--------------------------------------- # Site_Information # Site_Name: BJ803-136GGC # Location: Indonesia # Northernmost_Latitude: -5.927 # Southernmost_Latitude: -5.927 # Easternmost_Longitude: 120.231 # Westernmost_Longitude: 120.231 # Elevation_m: -526 #--------------------------------------- # Data_Collection # Collection_Name: BJ803-136GGC_oppo2022 # First_Year: 28266 # Last_Year: 89 # Time_Unit: calendar year before present # Core_Length_m: 4.14 # Parameter_Keywords: biomarkers, geochemistry # Notes: #--------------------------------------- # Chronology_Information # Chronology: # These data have not been published previously # # Labcode sample identification used by 14C laboratory # depth_top Depth top of sample interval (cm) # depth_bottom Depth bottom of sample interval (cm) # mat.dated Material Dated # 14C.raw conventional radiocarbon age, years before 1950AD # 14C.raw_err radiocarbon age, standard error # datemeth Dating method # reservoir Reservoir correction # delta-R Deviation from global mean reservoir correction # delta-R_err_lo delta-R standard error down # delta-R_err_up delta-R standard error up # calib.14C Calibrated age # calib.14C_1sig_lo Calibrated age, 1-sigma lower confidence bound # calib.14C_1sig_up Calibrated age, 1-sigma upper confidence bound # calib.14C_2sig_lo Calibrated age, 2-sigma lower confidence bound # calib.14C_2sig_up Calibrated age, 2-sigma upper confidence bound # calib_method Calibration method # rejected Rejected sample (yes/no) # notes Notes # # Labcode depth_top depth_bottom mat.dated 14C.raw 14C.raw_err datemeth reservoir delta-R delta-R_err_lo delta-R_err_up calib.14C calib.14C_2sig_lo calib.14C_2sig_up calib_method rejected notes # OS-76696 2 3 G. ruber 485 25 14C AMS Marine20 -64 100 100 NaN NaN NaN Calib8.2 NaN Too young (post-bomb material) for marine20 # OS-82386 72 73 G. ruber 3770 30 14C AMS Marine20 -64 100 100 3619 3338 3919 Calib8.2 NaN NaN # OS-82387 124 125 G. ruber 5150 30 14C AMS Marine20 -64 100 100 5380 5065 5634 Calib8.2 NaN NaN # OS-76697 168 169 G. ruber 7440 35 14C AMS Marine20 -64 100 100 7782 7548 8019 Calib8.2 NaN NaN # OS-82308 184 185 G. ruber 8230 35 14C AMS Marine20 -64 100 100 8643 8371 8964 Calib8.2 NaN NaN # OS-82309 204 205 G. ruber 9740 50 14C AMS Marine20 -64 100 100 10594 10245 10990 Calib8.2 NaN NaN # OS-76698 224 225 G. ruber 15400 65 14C AMS Marine20 -64 100 100 17910 17518 18219 Calib8.2 NaN NaN # OS-82310 248 249 G. ruber 14000 55 14C AMS Marine20 -64 100 100 16166 15793 16535 Calib8.2 NaN NaN # OS-76699 312 313 G. ruber 29000 210 14C AMS Marine20 -64 100 100 32477 31782 33150 Calib8.2 NaN NaN # OS-76700 400 401 G. ruber 37700 290 14C AMS Marine20 -64 100 100 41460 41018 41890 Calib8.3 NaN NaN # #--------------------------------------- # Variables # PaST_Thesaurus_Download_Resource: https://www.ncei.noaa.gov/access/paleo-search/skos/past-thesaurus.rdf # PaST_Thesaurus_Download_Description: Paleoenvironmental Standard Terms (PaST) Thesaurus terms, definitions, and relationships in SKOS format. # # Data variables follow that are preceded by "##" in columns one and two. # Variables list, one per line, shortname-tab-var components: what, material, error, units, seasonality, data type, detail, method, C or N for Character or Numeric data) # ## depth_cm depth,,,centimeter,,paleoceanography,,,N, ## age_BP age,,,calendar year before present,,paleoceanography,,,N,Ages provided are the median ages using Bacon (Blaauw and Christen 2011) Marine20 and the reservoir ages provided in Chronology Tab ## C30_alk C30 n-alkane,,,per mil SMOW,,paleoceanography,,isotope ratio mass spectrometry,N,Samples were prepared at WHOI and analyzed at the Center for Marine Environmental Sciences at the University of Bremen ## C3_alkError C30 n-alkane,,one standard deviation,per mil SMOW,,paleoceanography,,isotope ratio mass spectrometry,N, #------------------------ # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing_Values: NA depth_cm age_BP C30_alk C3_alkError 3.5 89 -169.6721017 1.27 24.5 1151 -170.9798814 1.10 48.5 2376 -169.3298757 3.61 72.5 3561 -180.9151186 4.08 96.5 4437 -171.6876271 NA 105 4748 -171.1065085 1.13 119 5247 -168.1835763 2.73 121 5320 -169.3221695 2.18 144.5 6498 -168.0285763 NA 156 7120 -167.7768983 0.27 168.5 7791 -168.1872542 NA 180 8420 -168.4342034 0.16 204 10555 -162.8484237 0.47 208 11151 -166.6073051 0.44 216.5 12739 -164.1961356 0.60 224 13964 -168.9002542 0.05 228 14415 -165.6179322 0.37 232 14802 -169.2433559 2.87 236 15176 -164.3831864 0.94 244 15880 -162.1296441 4.52 248 16247 -162.8478983 3.31 252 16987 -165.9232034 3.81 254 17481 -166.6824407 0.63 256 18043 -164.9107119 0.86 260 19142 -165.7408814 4.84 261 19410 -165.8717119 0.92 264.5 20354 -162.5657458 0.34 271 22101 -167.3938644 0.00 272 22373 -168.5398136 1.07 280 24351 -165.9683898 0.46 288.5 26408 -173.6639209 1.56 289 26533 -165.9116441 0.78 296 28266 -165.1970678 0.75