# Mawmluh Cave, India 135-100ka Speleothem Isotope and Trace Element 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/27990 # Description: NOAA Landing Page # Online_Resource: https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/india/mawmluh2019interglacial.txt # Description: NOAA location of the template # # Original_Source_URL: # Description: # # Description/Documentation lines begin with # # Data lines have no # # # Archive: Speleothems # # Dataset DOI: # # Parameter_Keywords: oxygen isotopes, carbon isotopes, trace metals #--------------------------------------- # Contribution_Date # Date: 2019-10-15 #--------------------------------------- # File_Last_Modified_Date # Date: 2019-10-15 #--------------------------------------- # Title # Study_Name: Mawmluh Cave, India 135-100ka Speleothem Isotope and Trace Element Data #--------------------------------------- # Investigators # Investigators: Magiera, M.; Lechleitner, F.A.; Erhardt, A.M.; Hartland, A.; Kwiecien, O.; Cheng, H.; Bradbury, H.J.; Turchyn, A.V.; Riechelmann, S.; Edwards, R.L.; Breitenbach, S.F.M. #--------------------------------------- # Description_Notes_and_Keywords # Description: Stable isotope (d18O, d13C, d44Ca) and trace element (Mg/Ca, Sr/Ca, Ba/Ca) data from a speleothem collected in Mawmluh Cave, NE India, # covering the time interval from 100 kyrs to 135 kyrs BP. We also supply modern monitoring data (host rock, dripwater and modern precipiate d44Ca data). # # Host rock, dripwater and modern precipiate d44Ca data: # host rock_d44Ca dripwater_d44Ca Maw-Mod1_d44Ca Maw-logger_d44Ca 1s error collection date # -0.09 NAN NAN NAN NAN 2007 # -0.20 NAN NAN NAN NAN 2007 # NAN 0.09 NAN NAN 0.011 January 2012 # NAN 0.03 NAN NAN 0.012 February 2012 # NAN 0.11 NAN NAN 0.014 March 2013 # NAN -0.01 NAN NAN 0.013 May 2013 # NAN 0.00 NAN NAN 0.016 August 12 # NAN 0.05 NAN NAN 0.014 September 2012 # NAN 0.02 NAN NAN 0.012 November 2011 # NAN 0.21 NAN NAN 0.018 December 2013 # NAN -0.01 NAN NAN 0.016 NAN # NAN NAN -1.31 NAN 0.020 2007 # NAN NAN NAN -0.66 NAN 2013 # # host rock_d44Ca delta 44/40Ca,calcite,,per mil BSE,,host rock,,isotope ratio mass spectrometry,N, # dripwater_d44Ca delta 44/40Ca,calcite,,per mil BSE,,dripwater,,isotope ratio mass spectrometry,N, # Maw-Mod1_d44Ca delta 44/40Ca,aragonite,,per mil BSE,,Speleothems,,isotope ratio mass spectrometry,N,material precipitated on glass plate # Maw-logger_d44Ca delta 44/40Ca,calcite,,per mil BSE,,Speleothems,,isotope ratio mass spectrometry,N,material precipitated on glass plate # 1s 1 sigma error,,,,,,,,N, # collection date collection date,,,,,,,,C, #--------------------------------------- # Publication # Authors: Matthias Magiera, Franziska A. Lechleitner, Andrea M. Erhardt, Adam Hartland, Ola Kwiecien, Hai Cheng, Harold J. Bradbury, Alexandra V. Turchyn, Sylvia Riechelmann, Lawrence Edwards, and Sebastian F.M. Breitenbach # Published_Date_or_Year: # Published_Title: Local and regional Indian Summer Monsoon precipitation dynamics during Termination II and the Last Interglacial # Journal_Name: Geophysical Research Letters # Volume: # Edition: # Issue: # Pages: # Report Number: # DOI: # Online_Resource: # Full_Citation: # Abstract: To date Indian Summer Monsoon (ISM) dynamics have been assessed by changes in stalagmite d18O. However, stalagmite d18O is influenced by multiple environmental factors (e.g. atmospheric moisture transport, rainfall amount at the study site, ISM seasonality), precluding simple and clear reconstructions of rainfall amount or variability. This study aims to disentangle these environmental factors by combining d18O, d44Ca and elemental data from a stalagmite covering Termination II and the last interglacial from Mawmluh Cave, NE India, to produce a semi-quantitative reconstruction of past ISM rainfall. We interpret d18O as a mixed signal of rainfall source dynamics and rainfall amount, and coupled d44Ca and X/Ca ratios as indicators of local infiltration rate and prior calcite precipitation in the karst zone. The wettest conditions in our studied interval (135 and 100 kyrs BP (BP = before present, with the present being 1950 CE)) occurred during MIS-5e. Our multi-proxy dataset suggests a likely change in seasonal distribution of MIS-5e rainfall compared to the Holocene; the wet season was longer with higher-than-modern dry season rainfall. Using the last interglacial as an analogue for future anthropogenic warming, our data suggest a more erratic ISM behavior in a warmer world. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: European Union # Grant: 691037 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: CARBONSINK # Grant: ERC 307582 StG #--------------------------------------- # Funding_Agency # Funding_Agency_Name: NERC # Grant: NE/R013519/1 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: National Natural Science Foundation of China # Grant: NSFC-41731174 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: National Science Foundation # Grant: NSF-1702816 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Rutherford Discovery Fellowship award # Grant: RDF-UOW1601 #--------------------------------------- # Site Information # Site_Name: Mawmluh Cave # Location: Cherrapunji # Country: India # Northernmost_Latitude: 25.262222 # Southernmost_Latitude: 25.262222 # Easternmost_Longitude: 91.881667 # Westernmost_Longitude: 91.881667 # Elevation: 1160 m #--------------------------------------- # Data_Collection # Collection_Name: Mawmluh2019interglacial # First_Year: 135488 # Last_Year: 99231 # Time_Unit: cal yr BP # Core_Length: 0.08 # Notes: Speleothem sample MAW-3_7 #--------------------------------------- # Chronology_Information # Chronology: # The chronology constructed for Mawmluh cave was established by 10 230Th dates (MAW3-7-13 to MAW-3-7-19; MAW3-7-8; MAW3-7-10 and MAW3-7-5). The age model for MAW-3_7 was calculated by applying a cubic interpolation procedure using COPRA # 230Th dating results. The error is 2s error. # mm from Sample 238U # top Number (ppb) # 0.1 MAW3-7-11 8880.8 ±35 944.85060063394 ±19 34348.1973515269 ±707 -345.604861123396 ±1.2 0.221639430681125 ±0.0009 47077.9675895229 ±286 47072.7970465758 ±286 -394.704895666567 ±1 47008.7970465758 ±286 not used for age model # 3.3 MAW3-7-12 11622.4 ±53 5309.16319404261 ±109 8263.09623317252 ±170 -349.402498548587 ±1.3 0.228933308360438 ±0.0011 49545.4005312319 ±354 49523.1162782296 ±354 -401.810980952077 ±2 49459.1162782296 ±354 not used for age model # 6.7 MAW3-7-13 3043.4 ±8 28948.0412840891 ±584 690.103033951195 ±14 -296.967871324491 ±1.1 0.398117258100001 ±0.0011 99741.6731792931 ±602 99284.3622757246 ±679 -393.000324513384 ±2 99220.3622757246 ±679 NaN # 11.7 MAW3-7-14 3106.2 ±8 8758.526689344 ±177 2465.81788272743 ±50 -292.457160082056 ±1.1 0.421693197849474 ±0.0012 109349.783451619 ±715 109213.185699626 ±720 -398.028821141193 ±2 109149.185699626 ±720 NaN # 13.4 MAW3-7-8 2656 ±3 8465 ±170 2267 ±45 -289 ±1.0 0.4383 ±0.0006 116391 ±532 116391 ±532 -401 ±2 116327 ±532 NaN # 17.9 MAW3-7-15 1543.77537573725 ±3 7932.59126368072 ±160 1479.56332658272 ±30 -272.679364778656 ±1.1 0.461103965913524 ±0.0011 122060.047170972 ±770 121816.54054013 ±786 -384.548635171356 ±2 121752.54054013 ±786 NaN # 21.45 MAW3-7-16 1887.99942978208 ±4 32967.7958946837 ±663 451.675983587045 ±9 -270.784598337228 ±1.1 0.478353972026261 ±0.0011 131011.194212591 ±817 130172.725828403 ±1002 -390.98882499016 ±2 130108.725828403 ±1002 NaN # 26.9 MAW3-7-9 2202 ±6 521948 ±10453 34 ±1 -262.8 ±3.3 0.4887 ±0.0023 133250 ±2164 121586 ±8406 -370 ±10 121522 ±8406 not used for age model # 31.8 MAW3-7-17 2526.9484847675 ±6 36254.449506991 ±729 547.251676436405 ±11 -282.206260606436 ±1.1 0.476196675339275 ±0.0012 135510.153171326 ±961 134795.998814633 ±1076 -412.831985212576 ±2 134731.998814633 ±1076 NaN # 37.6 MAW3-7-10 3392 ±7 74178 ±1491 358 ±7 -286.8 ±1.7 0.4743 ±0.0011 136736 ±1221 135631 ±1432 -421 ±3 135567 ±1432 NaN # 40.1 MAW3-7-18 3009.5 ±8 11164 ±225 2099 ±42 -284.4 ±1.1 0.4722 ±0.0014 134083 ±1080 133898 ±1085 -415 ±2 133834 ±1085 NaN # 42.5 MAW3-7-19 3916.49438229649 ±11 4107.60757051675 ±83 7308.73755411404 ±148 -293.537197712458 ±1.1 0.464909195783435 ±0.0014 134295.641413631 ±1122 134241.925221303 ±1122 -428.736800042594 ±2 134177.925221303 ±1122 NaN # 43.6 MAW3-7-5 3991 ±5 5080 ±102 6012 ±121 -297.3 ±0.9 0.4642 ± 0.0008 135942 ±728 135876 ±729 -436 ±2 135813 ±729 NaN # # U decay constants: l238 = 1.55125x10-10 (Jaffey et al., 1971) and l234 = 2.82206x10-6 (Cheng et al., 2013). Th decay constant: l230 = 9.1705x10-6 (Cheng et al., 2013). # *d234U = ([234U/238U]activity – 1)x1000. ** d234Uinitial was calculated based on 230Th age (T), i.e., d234Uinitial = d234Umeasured x el234xT. # Corrected 230Th ages assume the initial 230Th/232Th atomic ratio of 4.4 ±2.2 x10-6. Those are the values for a material at secular # equilibrium, with the bulk earth 232Th/238U value of 3.8. The errors are arbitrarily assumed to be 50%. # ***B.P. stands for "Before Present" where the "Present" is defined as the year 1950 A.D. # #--------------------------------------- # 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) # ## depth depth,,,millimeter,,Speleothems,,,N,measured from top of sample ## age_ka age,,,calendar kyears before present,,Speleothems,,U series dating,N, ## d18O delta 18O,calcite,,per mil VPDB,,Speleothems,,isotope ratio mass spectrometry,N, ## d13C delta 13C,calcite,,per mil VPDB,,Speleothems,,isotope ratio mass spectrometry,N, ## d44Ca delta 44/40Ca,calcite,,per mil BSE,,Speleothems,,isotope ratio mass spectrometry,N, ## Mg/Ca magnesium/calcium,calcite,,millimole per mole,,Speleothems,,inductively coupled plasma mass spectroscopy,N, ## Sr/Ca strontium/calcium,calcite,,millimole per mole,,Speleothems,,inductively coupled plasma mass spectroscopy,N, ## Ba/Ca barium/calcium,calcite,,millimole per mole,,Speleothems,,inductively coupled plasma mass spectroscopy,N, # #------------------------ # Data # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Value: NAN depth age_ka d18O d13 d44C Mg/Ca Sr/Ca Ba/Ca 6.7 99.231 -1.2 -1.34 -0.373 17.8 0.098 0.0057 7.1 99.440 -0.86 -1.54 NAN NAN NAN NAN 7.6 99.905 -1.23 -1.92 NAN NAN NAN NAN 8 100.422 -0.82 -1.89 NAN NAN NAN NAN 8.4 101.053 -0.23 -1.51 NAN NAN NAN NAN 9.8 104.005 -0.85 -1.42 -0.620 NAN NAN NAN 10.2 105.013 -0.87 -2.17 NAN NAN NAN NAN 10.7 106.342 -1.02 -1.98 NAN NAN NAN NAN 11.1 107.449 -0.6 -1.92 NAN NAN NAN NAN 11.5 108.580 -0.44 -1.66 NAN NAN NAN NAN 12 110.236 -0.74 -1.71 -0.604 19.2 0.106 0.0069 12.5 112.652 -0.86 -1.91 NAN NAN NAN NAN 12.9 114.608 -1.4 -2.35 -0.603 20.2 0.131 0.0083 13.3 116.078 -0.32 -1.71 NAN NAN NAN NAN 14.1 117.542 -0.22 -1.67 NAN NAN NAN NAN 14.5 118.089 -0.63 -2.03 NAN NAN NAN NAN 14.9 118.554 -0.56 -2.12 -0.365 NAN NAN NAN 15.3 118.960 -0.06 -2.30 -0.552 20.8 0.123 0.0384 15.7 119.330 -1.61 -1.92 NAN NAN NAN NAN 16.1 119.686 -2.02 -1.66 NAN NAN NAN NAN 16.5 120.053 -2.84 -1.73 NAN NAN NAN NAN 16.9 120.454 -3.4 -1.41 -0.772 NAN NAN NAN 17.3 120.912 -3.04 -1.41 NAN NAN NAN NAN 17.7 121.449 -3.14 -1.59 NAN NAN NAN NAN 18.1 122.108 -2.98 -1.80 -0.879 13.1 0.087 0.0047 18.5 122.979 -2.71 -1.86 NAN NAN NAN NAN 18.8 123.746 -2.15 -1.93 -0.711 NAN NAN NAN 19.2 124.863 -3.43 -2.22 NAN NAN NAN NAN 19.6 126.027 -2.54 -2.27 NAN NAN NAN NAN 20.1 127.444 -2.36 -2.27 -0.644 12.5 0.082 0.0048 20.5 128.465 -2.5 -2.42 NAN NAN NAN NAN 20.9 129.310 -2.42 -2.37 -0.616 NAN NAN NAN 21.4 130.016 -2.35 -2.67 -0.664 12.5 0.074 0.0040 21.8 130.317 -1.96 -2.15 NAN NAN NAN NAN 22.2 130.595 -2.01 -1.90 NAN NAN NAN NAN 22.6 130.860 -1.53 -1.51 NAN NAN NAN NAN 22.9 131.051 -1.73 -1.45 NAN NAN NAN NAN 23.3 131.296 -1.6 -1.71 NAN NAN NAN NAN 23.7 131.528 -1.75 -1.89 NAN NAN NAN NAN 24.1 131.749 -1.59 -1.83 NAN NAN NAN NAN 24.5 131.958 -1.6 -1.81 NAN NAN NAN NAN 24.8 132.108 -1.91 -1.99 -0.628 NAN NAN NAN 25.2 132.297 -0.69 -1.53 NAN NAN NAN NAN 25.5 132.433 -1.52 -1.96 -0.629 14.8 0.092 0.0057 25.9 132.604 -1.12 -1.93 NAN NAN NAN NAN 26.2 132.725 -0.07 -2.14 NAN NAN NAN NAN 26.4 132.803 -0.9 -2.28 NAN NAN NAN NAN 26.7 132.915 -1.06 -2.36 -0.497 13.9 0.092 0.0045 27.1 133.055 -0.08 -2.59 -0.439 NAN NAN NAN 27.5 133.185 -0.87 -2.76 NAN NAN NAN NAN 27.9 133.306 -1.08 -1.83 NAN NAN NAN NAN 28.4 133.444 -1.02 -1.33 -0.437 NAN NAN NAN 28.8 133.544 0.2 -1.46 NAN NAN NAN NAN 29.3 133.656 0.29 -1.29 -0.468 NAN NAN NAN 29.8 133.755 0.07 -1.26 -0.467 NAN NAN NAN 30.2 133.825 0.18 -1.45 NAN NAN NAN NAN 30.6 133.887 -1.77 -1.11 -0.592 14.6 0.086 0.0046 31 133.940 -1.19 -1.70 NAN NAN NAN NAN 31.4 133.986 -1.25 -1.93 -0.421 NAN NAN NAN 31.8 134.024 -0.21 -2.15 -0.475 NAN NAN NAN 32.3 134.065 -0.66 -1.77 NAN NAN NAN NAN 32.6 134.089 -1.25 -1.99 -0.419 NAN NAN NAN 33 134.117 -1.35 -2.20 NAN NAN NAN NAN 33.5 134.151 -0.13 -1.71 -0.455 NAN NAN NAN 33.9 134.176 -1.1 -1.60 NAN NAN NAN NAN 34.3 134.199 -0.77 -1.74 NAN NAN NAN NAN 34.7 134.221 -1.54 -1.68 -0.515 NAN NAN NAN 35.1 134.242 0.05 -1.82 NAN NAN NAN NAN 35.5 134.262 -0.76 -1.62 NAN NAN NAN NAN 35.9 134.281 -0.94 -1.62 NAN NAN NAN NAN 36.3 134.300 -0.65 -1.79 NAN NAN NAN NAN 36.7 134.319 -1.48 -1.82 -0.591 17.3 0.104 0.0059 37.1 134.337 -1.2 -1.88 NAN NAN NAN NAN 37.6 134.360 -0.56 -1.63 NAN NAN NAN NAN 38 134.383 -0.87 -2.10 -0.423 NAN NAN NAN 38.4 134.412 -0.26 -1.43 NAN NAN NAN NAN 38.8 134.445 -1.52 -1.21 NAN NAN NAN NAN 39.2 134.480 -0.76 -1.60 NAN NAN NAN NAN 39.7 134.522 0.23 -1.73 -0.241 NAN NAN NAN 40.1 134.552 0.44 -1.50 NAN NAN NAN NAN 40.5 134.584 0.91 -1.51 NAN NAN NAN NAN 40.9 134.625 -1.37 -1.40 -0.534 18.2 0.102 0.0049 41.8 134.749 0.19 -1.60 NAN NAN NAN NAN 42.3 134.841 0.02 -1.31 -0.423 NAN NAN NAN 42.7 134.960 -0.7 -1.28 NAN NAN NAN NAN 43 135.184 -0.93 -1.41 NAN NAN NAN NAN 43.3 135.488 -0.75 -1.14 -0.596 19.8 0.118 0.0076