# Arabian Sea ODP722 11ma Leaf Wax Stable Isotope Data #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #----------------------------------------------------------------------- # Template Version 3.0 # Encoding: UTF-8 # NOTE: Please cite Publication, and Online_Resource and date accessed when using these data. # If there is no publication information, please cite Investigators, Title, and Online_Resource and date accessed. # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/22691 # Description: NOAA Landing Page # Online_Resource: https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/huang2007/huang2007soiliso.txt # Description: NOAA location of the template # # Original_Source_URL: # Description: # # Description/Documentation lines begin with # # Data lines have no # # # Archive: Paleoceanography # # Dataset DOI: # # Parameter_Keywords: age control, biomarkers, carbon isotopes, oxygen isotopes, geochemistry, population abundance #-------------------- # Contribution_Date # Date: 2017-09-27 #-------------------- # File_Last_Modified_Date # Date: 2017-09-27 #-------------------- # Title # Study_Name: Arabian Sea ODP722 11ma Leaf Wax Stable Isotope Data #-------------------- # Investigators # Investigators: Huang, Y.; Clemens, S.C.; Liu, W.; Wang, Y.; Prell, W.L. #-------------------- # Description_Notes_and_Keywords # Description: Biomarker and compound-specific isotope data, plus foraminiferal census and isotope data, from Ocean Drilling Program Site 722 # in the Arabian Sea, spanning the past 11 m.y. Also included are paleosol carbon and oxygen isotope data from several locations in Pakistan. #-------------------- # Publication # Authors: Yongsong Huang, Steven C. Clemens, Weiguo Liu, Yi Wang, Warren L. Prell # Published_Date_or_Year: 2007-06-01 # Published_Title: Large-scale hydrological change drove the late Miocene C4 plant expansion in the Himalayan foreland and Arabian Peninsula # Journal_Name: Geology # Volume: 35 # Edition: # Issue: 6 # Pages: 531-534 # Report_Number: # DOI: 10.1130/G23666A.1 # Online_Resource: https://pubs.geoscienceworld.org/geology/article-lookup/35/6/531 # Full_Citation: # Abstract: Carbon isotope changes in paleosols from Siwalik, Pakistan, and marine sediments from the Bengal Fan indicate a major C4 plant expansion in the Himalayan foreland during the late Miocene. However, the timing and mechanisms behind the C4 plant expansion remain enigmatic. Here we present high-resolution (~60 k.y.) biomarker and compound-specific isotope data spanning the past 11 m.y. from Ocean Drilling Program Site 722 in the Arabian Sea. An ~5-6 permil increase in leaf wax d13C values indicates a marked rise of C4 plants from 10 to 5.5 Ma, with accelerated expansion from 7.9 to 5.5 Ma. A concurrent ~50 permil rise in leaf wax dD values is attributed to a combined effect of changes in precipitation amount and evaporation, indicating that source regions for the plant waxes became progressively drier from 10 to 5.5 Ma. In contrast to earlier reports, our isotope records, biomarker abundances, alkenone UK'37, and Globigerina bulloides abundance data do not suggest enhanced summer monsoon circulation during this time interval. Rather, our results suggest that large-scale hydrological changes drove the late Miocene expansion of C4 plants in the Himalayan foreland and Arabian Peninsula. #------------------ # Funding_Agency # Funding_Agency_Name: US National Science Foundation # Grant: 0318050, 0318123, 0402383, 0520718 #------------------ # Funding_Agency # Funding_Agency_Name: US National Aeronautics and Space Administration # Grant: NAG5-10665, NNG04GJ34G #------------------ # Funding_Agency # Funding_Agency_Name: American Chemical Society # Grant: ACS-PRF 38878-AC2 #------------------ # Site_Information # Site_Name: ODP722 # Location: Ocean>Indian Ocean>Arabian Sea # Country: # Northernmost_Latitude: 16.61667 # Southernmost_Latitude: 16.61667 # Easternmost_Longitude: 59.8 # Westernmost_Longitude: 59.8 # Elevation: -2022 m #------------------ # Data_Collection # Collection_Name: Huang2007soiliso # Earliest_Year: 17000000 # Most_Recent_Year: 480000 # Time_Unit: Cal. Year BP # Core_Length: # Notes: #------------------ # Chronology_Information # Chronology: # #---------------- # Variables # # Data variables follow are preceded by "##" in columns one and two. # Data line variables format: one per line, shortname-tab-variable components (what, material, error, units, seasonality, data type,detail, method, C or N for Character or Numeric data, free text) # ## sample SampleID,,,,,,,,N, ## section Section,,,,,,,,C, ## d13C delta13C, soil carbonate, , per mil, ,other collections, ,isotope ratio mass spectrometry,N, ## d18O delta18O, soil carbonate, , per mil, ,other collections, ,isotope ratio mass spectrometry,N, ## age_MaB85 age, , , Millions of calendar years before present, , , Berggren 1985, ,N, ## age_MaCK95 age, , , Millions of calendar years before present, , , Cande and Kent 1995, ,N, # #---------------- # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Values: # sample section d13C d18O age_MaB85 age_MaCK95 9722 Pabbi Hills 2.1 -5.7 0.48 0.48 9721 Pabbi Hills -2.4 -9 0.54 0.54 9720 Pabbi Hills 0.5 -6.7 0.58 0.6 9718 Pabbi Hills 1.6 -6.1 0.67 0.69 9217 Pabbi Hills 0.9 -6.8 0.69 0.73 9216 Pabbi Hills 1.9 -6.5 0.72 0.77 9212 Pabbi Hills -2.1 -8.5 0.96 1.05 9211 Pabbi Hills -0.1 -6.1 1.01 1.1 9210 Pabbi Hills 2.3 -6.8 1.03 1.11 9209 Pabbi Hills 2.5 -6.6 1.06 1.15 9208 Pabbi Hills 0.9 -5.6 1.07 1.16 9206 Pabbi Hills 0.3 -4.4 1.08 1.17 9207 Pabbi Hills 1.3 -5.2 1.08 1.16 9205 Pabbi Hills 1.3 -5.2 1.1 1.18 9204 Pabbi Hills 1.4 -6.4 1.13 1.22 9203 Pabbi Hills -0.1 -7.9 1.17 1.26 9202 Pabbi Hills 1.2 -8.1 1.27 1.36 9201 Pabbi Hills -0.8 -6 1.28 1.37 9200 Pabbi Hills -0.9 -5.9 1.32 1.41 9197 Pabbi Hills 0.2 -6.3 1.34 1.43 9196 Pabbi Hills 1.9 -6.6 1.4 1.49 9194 Pabbi Hills 2.1 -5.8 1.45 1.54 9193 Pabbi Hills 0.8 -5.6 1.48 1.56 8076 Mirpur 0.8 -5 1.52 1.48 8075 Mirpur 2.6 -6 1.54 1.5 9192 Pabbi Hills 1.3 -5.8 1.55 1.64 7905 Pabbi Hills 1.8 -4.7 1.67 1.76 9189 Pabbi Hills 1.1 -4.8 1.67 1.76 9190 Pabbi Hills 2.3 -5.5 1.67 1.76 9191 Pabbi Hills 2.8 -4.6 1.67 1.76 8068 Mirpur 0.8 -7 1.8 1.9 8065 Mirpur 0.4 -6.2 2.1 2.14 8056 Mirpur -1.9 -6.8 2.4 2.45 8051 Mirpur 1 -6.2 2.5 2.55 8043 Mirpur 1.7 -7.5 2.6 2.66 9733 Jalalpur 2.5 -6.8 2.7 2.27 8037 Mirpur 2 -7.2 2.8 2.89 9730 Jalalpur -1.9 -7.8 2.85 2.58 8024 Mirpur 0.1 -7.2 3 3.1 8016 Mirpur 0.7 -7.8 3.05 3.24 8014 Mirpur 1.2 -6.9 3.1 3.27 8012 Mirpur 0.9 -5.5 3.13 3.28 8007 Mirpur 0.6 -6.7 3.18 3.33 9698 Jalalpur 2 -6.3 3.9 3.39 9694 Jalalpur 1.8 -6.2 4 3.42 9693 Jalalpur 0.4 -6.1 4.05 3.44 9689 Jalalpur 1.8 -6.5 4.15 3.5 9669 Jalalpur -1.9 -7.2 4.4 3.74 9676 Jalalpur 0.7 -6.5 4.6 4.36 9671 Jalalpur 0.6 -7 5 4.68 9665 Jalalpur -1 -7.5 5.2 5.13 9663 Jalalpur -0.7 -8 5.35 5.77 9657 Jalalpur 0.54 -6.4 5.45 5.89 9655 Jalalpur -2.3 -4.9 5.5 5.91 9654 Jalalpur 0.1 -7.2 5.6 5.94 9652 Jalalpur -1.3 -4.9 5.7 5.98 9648 Jalalpur -0.3 -5.4 5.75 6.07 9646 Jalalpur 0 -6.9 5.85 6.12 9643 Jalalpur -3.5 -6.9 5.95 6.43 9640 Jalalpur -1.4 -7.4 6.1 6.59 9639 Jalalpur -3 -7.7 6.2 6.61 9187 Kaulial Kas -7 -6.8 6.25 6.99 9186 Kaulial Kas -9.5 -7.3 6.3 7.04 9186 Kaulial Kas -8.8 -6.5 6.3 7.04 9637 Jalalpur -0.7 -6.3 6.3 6.76 9185 Kaulial Kas -7.9 -7.6 6.4 7.1 9184 Kaulial Kas -10.1 -9.1 6.57 7.27 9630 Jalalpur -5 -7.4 6.6 7.48 9183 Kaulial Kas -3.6 -7.1 6.65 7.37 9182 Kaulial Kas -9.5 -7.9 6.7 7.47 9181 Kaulial Kas -10.2 -7.4 6.73 7.52 9180 Kaulial Kas -7.5 -7.8 6.77 7.59 9178 Kaulial Kas -8.6 -7.5 6.8 7.63 9177 Kaulial Kas -8.6 -7.1 6.9 7.74 9625 Jalalpur -7.9 -7.9 7.2 7.92 9624 Jalalpur -11.2 -6.2 7.2 7.95 9174 Kaulial Kas -8.9 -7 7.28 8.06 9175 Kaulial Kas -11.6 -8.9 7.3 8.11 9622 Jalalpur -8.8 -8 7.3 7.98 9173 Kaulial Kas -11.5 -7.4 7.38 8.34 9619 Jalalpur -10.8 -9 7.7 8.4 9168 Kaulial Kas -11.8 -5.4 7.75 8.63 9162 Kaulial Kas -12.9 -8.7 8.15 8.97 9160 Kaulial Kas -10.6 -7.3 8.21 9.04 9158 Kaulial Kas -12.6 -5.4 8.35 9.15 9613 Jalalpur -11 -9.9 8.5 9.27 7934 Gabhir Kas -11.3 -10.7 8.78 9.78 9607 Jalalpur -10 -9.9 8.85 9.41 7933 Gabhir Kas -8.7 -11 8.9 9.9 9611 Jalalpur -10.1 -9.7 8.9 9.64 7931 Gabhir Kas -9.4 -10.6 9.05 10.02 7929 Gabhir Kas -10.3 -9.5 9.1 10.05 7935 Gabhir Kas -10.5 -11.3 9.34 10.21 9764 Jalalpur -9.8 -9.4 9.5 10.14 7919 Gabhir Kas -10.5 -9.4 9.52 10.39 9762 Jalalpur -9.9 -8 10.1 10.6 7918 Gabhir Kas -10.7 -9.1 10.28 10.85 Gabhir Kas -9.6 -9.9 10.54 11.02 7916 Gabhir Kas -10.6 -9.8 11.06 11.38 7855 Gabhir Kas -9.3 -9.8 11.1 11.47 7857 Gabhir Kas -9.9 -10.1 11.69 11.91 9758 Jalalpur -10.7 -9.5 11.8 11.67 7865 Gabhir Kas -9.9 -10.6 12.08 12.2 7859 Gabhir Kas -9.2 -10.2 12.22 12.31 7860 Gabhir Kas -9.5 -10.6 12.67 12.64 9757 Jalalpur -10.8 -8.8 13.1 12.23 7862 Gabhir Kas -9.4 -10.4 13.52 13.27 7826 Gabhir Kas -9 -11.9 13.97 13.6 7827 Gabhir Kas -9 -10.3 14 13.63 7828 Gabhir Kas -9.2 -8.7 14.04 13.67 7829 Gabhir Kas -9.8 -9.3 14.08 13.69 7869 Gabhir Kas -9.7 -10.8 14.3 13.87 9132 Gabhir Kas -11.4 -8.9 15 14.35 9134 Gabhir Kas -10.6 -8.7 15.05 14.38 9135 Gabhir Kas -10 -8.2 15.1 14.4 9143 Gabhir Kas -9.2 -9.6 16 15.21 9141 Gabhir Kas -10 -10.7 16 15.21 9148 Gabhir Kas -9.1 -7.6 17 15.93