# Minami Daito Island, Okinawa, Japan Isotope and Temperature Data of Cave Deposits from the Mid-Holocene #----------------------------------------------------------------------- # 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.ncei.noaa.gov/access/paleo-search/study/39959 # 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-cave-39959.json # Study_Level_JSON_Description: JSON metadata of this data file's parent study, which includes all study metadata. # # Data_Type: Speleothems # # Dataset_DOI: # # Science_Keywords: Other Hydroclimate Reconstruction, Air Temperature Reconstruction, Monsoon #--------------------------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/speleothem/pacific/azharuddin2024/azharuddin2024-hsn1_stalagmite_fiiso_temp.txt # Data_Download_Description: NOAA Template File; HSN1 Stalagmite Fluid Inclusion Isotope Temperature Data # #--------------------------------------- # Contribution_Date # Date: 2024-10-31 #--------------------------------------- # File_Last_Modified_Date # Date: 2024-12-18 #--------------------------------------- # Title # Study_Name: Minami Daito Island, Okinawa, Japan Isotope and Temperature Data of Cave Deposits from the Mid-Holocene #--------------------------------------- # Investigators # Investigators: Azharuddin, Syed; Omine, Kanako; Masaka, Kosuke; Asami, Ryuji; Lone, Mahjoor Ahmad ; Chou, Yu-Chen; Shen, Chuan-Chou (0000-0003-2833-2771); Uemura, Ryu (000-0002-4236-0085) #--------------------------------------- # Description_Notes_and_Keywords # Description: Oxygen and hydrogen isotopes of fluid inclusions water in stalagmite # Provided Keywords: fluid inclusion, AMO, AMV, Volcanic eruption, Kikai caldera #--------------------------------------- # Publication # Authors: Syed Azharuddin, Kanako Omine, Kosuke Masaka. Ryuji Asami, Mahjoor Ahmad Lone, Yu-Chen Chou, Chuan-Chou Shen, Ryu Uemura # Published_Date_or_Year: 2025 # Published_Title: Multidecadal hydroclimate responses to volcanic forcing in the Mid-Holocene # Journal_Name: Communications Earth & Environment # Volume: 6 # Edition: # Issue: 101 # Pages: # Report_Number: # DOI: 10.1038/s43247-025-02047-0 # Online_Resource: # Full_Citation: # Abstract: #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Japan Society for the Promotions in Science (JSPS) # Grant: Grants-in-Aid for Scientific Research (KAKENHI) 15H01729, 17KK0012, 20H00628, 26707028 #--------------------------------------- # Site_Information # Site_Name: Hoshino Cave, Minami Daito Island, Okinawa, Japan # Location: Pacific Ocean # Northernmost_Latitude: 25.85 # Southernmost_Latitude: 25.85 # Easternmost_Longitude: 131.21 # Westernmost_Longitude: 131.21 # Elevation_m: 45 #--------------------------------------- # Data_Collection # Collection_Name: HSN1_stalagmite_FIiso_temp # First_Year: 7361.9 # Last_Year: 5999.8 # Time_Unit: calendar year before present # Core_Length_m: 0.25 # Parameter_Keywords: oxygen isotopes, geochemistry # Notes: #--------------------------------------- # Chronology_Information # Chronology: # # depth_mm Weight_g 238U_ppb 238U_2s_ppb 232Th_ppt 232Th_2s_ppt 230Th_232Th_atom_10e-3 230Th_232Th_atom_2s_10e-3 d234U_meas_permil d234U_meas_2s_permil 230Th_238U_act 230Th_238U_act_2s age_corr_BP1950 age_corr_2s_yr d234U_init_permil d234U_init_2s_permil # 2 0.0664 110.277795709168 0.190053440596124 6.4258779102235 6.98903157320662 16.310453861803 17.7405124189338 65.2021674338064 3.41198267824486 5.75621734451926E-02 5.39536030714678E-04 5999.79543516948 61.7956973971588 66.3288332045934 3.47095964859817 # 12 0.3186 132.880650961852 0.168043786833262 115.498177468624 1.46885340929844 1.09833910716952 0.014579170614628 60.8649488864843 1.46965588022873 0.057900615300166 2.3202055839964E-04 6027.86634945775 28.7797258885165 61.9209883235036 1.49516365875336 # 25 0.3078 135.279139319688 0.179707432602692 80.8590794101943 1.51499092202021 1.6110881930148 3.08397355980106E-02 60.3528761807628 1.40609425285909 5.84050800307278E-02 2.41819340043912E-04 6092.51730307791 28.6004397360684 61.4112344293522 1.43076035003713 # 30 0.2944 131.053035116586 0.219692046253098 25.9343418104009 1.57922340846907 4.8956938293832 0.29935910836697 60.0994518696969 1.74539745751903 5.87591824054145E-02 3.41837260405122E-04 6142.52782809794 38.7453904855383 61.1619974979038 1.776268314379 # 60 0.29925 168.17924150327 0.22036129352596 16.938079397519 1.55236518301941 9.9124148239114 0.909630661872758 60.5697888658945 1.44147114194465 6.05486676056907E-02 2.91937159589148E-04 6336.84440188516 33.0817234233137 61.6744617720946 1.46777201910193 # 75 0.2972 164.20036688119 0.464225418162541 2.18079108192069 1.56160629099721 76.2860864133486 54.6291452755911 61.8282164982873 3.28151375838009 6.14495380381178E-02 4.71840338366218E-04 6429.43743086567 55.4472918260035 62.9722491399062 3.34224748940445 # 90 0.299 147.01584784512 0.381310610207039 32.7521323984888 1.57763910113246 4.6037602626751 0.224327485509304 59.4422466184339 2.88889263038108 6.22044530115738E-02 4.84999660708201E-04 6521.83812232296 56.2330412925884 60.5579199549426 2.94313005345927 # 110 0.3141 157.365579387736 0.230389962630684 2.49525823659517 1.47748813552177 66.0757182187052 39.1257336609782 62.7180486487127 1.60292856252916 6.35449427326262E-02 2.95851815819193E-04 6651.65591124809 33.9302980603963 63.9186635676625 1.63362498184538 # 130 0.3069 155.327316802323 0.385704409865532 2.36805663460017 1.5124559061203 69.7038593812788 44.5232488006802 57.3212733055377 2.69940029665608 6.44517059482407E-02 5.77045454561154E-04 6787.03371214756 65.8758453048969 58.4408593009688 2.75214583496683 # 150 0.2626 161.574775968093 0.258812735312479 2.0149607605283 1.76722219961012 86.2987216249381 75.6894041929529 60.9291416028941 1.64139074525899 6.52725741830784E-02 3.22309595181932E-04 6852.35460704115 36.9799803804888 62.1306917295441 1.67377227831503 # 163 0.25 159.627534291423 0.381600296286818 1.06082141095251 1.85636385120807 163.991435772474 286.975421451939 61.6168157416075 2.76287652227132 6.60981017064013E-02 4.37962387656599E-04 6938.3626579813 51.5436802636294 62.847135396888 2.81805847329919 # 172 0.231 146.15765144405 0.366659155990094 2.32279187017224 2.0094335306722 68.3269421752291 59.1126261978399 58.0493657794123 2.87086385589032 6.58588395609386E-02 6.32341551960113E-04 6936.47476963601 72.1870869706928 59.2081377441493 2.92819644437769 # 190 0.2601 137.389214005393 0.261741851625188 3.65661854667115 1.7844505482021 41.6830449468069 20.3430050286336 58.1410557759927 2.07440643981236 6.72852395367198E-02 4.11607623821797E-04 7092.2599544038 47.5558619265919 59.3277352355429 2.1167607955094 # 200 0.2958 138.720882285848 0.179168124560666 20.9006812456857 1.56960991786132 7.38542166647062 0.555207980013112 56.0582057001526 1.52484922010472 6.74881064678577E-02 2.46534868317176E-04 7125.98217378048 29.3041688401999 57.2078578809289 1.55612831042444 # 220 0.2981 134.923409849427 0.337809770739303 6.1471442296654 1.55782725412782 24.7870335262046 6.2851315173237 55.2897765864182 2.54645621768795 6.84926542260491E-02 6.06654903804665E-04 7245.15430135884 69.4506855999238 56.4426092124627 2.5995752731233 # 230 0.2847 145.436246955707 0.219561750296677 5.19601708551512 1.63007979089563 31.741931007668 9.95951701897643 56.7628830075093 1.61199787847176 6.87803849849855E-02 3.92035974483653E-04 7266.22724904231 44.7718695977802 57.9499180488963 1.64572455148778 # 240 0.2979 141.490516294823 0.346105702833075 8.96219592505368 1.55995665215345 18.2570687689841 3.18094752259027 61.8079255810078 2.73204840569672 7.01376969861979E-02 5.68363910813466E-04 7378.38607993856 65.5506119254191 63.1203948125316 2.79008694132037 # 245 0.2711 156.005606987095 0.232117631298509 7.24073846327594 1.71194974224678 24.8255985049366 5.87105467368834 60.2709481830628 1.68125129270488 6.98836738628431E-02 3.83322508724131E-04 7361.89458461519 43.9155033602569 61.5479591253225 1.7168903260358 # #--------------------------------------- # 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) # ## Sample_ID sample identification,,,,,speleothems; climate reconstructions,,,C, ## depth_mm depth,,,millimeter,,speleothems; climate reconstructions,,,N,mean depth ## Age age,,,calendar kiloyear before present,,speleothems; climate reconstructions,,,N, ## d18Oca delta 18O,calcium carbonate,,per mil VPDB,,speleothems,,isotope ratio mass spectrometry,N,sample from FI subsample ## d18Oca_num number of samples,calcium carbonate,,count,,speleothems,,isotope ratio mass spectrometry,N,number of repeated measurements ## d18Oca_err delta 18O,calcium carbonate,one standard error,per mil VPDB,,speleothems,,isotope ratio mass spectrometry,N,square root (standard deviation/N) ## Water_content water content,fluid inclusion,,weight percent ,,speleothems,,cavity ring-down spectroscopy,N,water-weight/speleothem-weight in percent ## d18Ofi delta 18O,fluid inclusion,,per mil VSMOW,,speleothems,,cavity ring-down spectroscopy,N, ## d18Ofi_num number of samples,fluid inclusion,,count,,speleothems,,cavity ring-down spectroscopy,N,number of repeated measurements ## d18Ofi_err delta 18O,fluid inclusion,,per mil VSMOW,,speleothems,,cavity ring-down spectroscopy,N,square root (standard deviation/N) ## d2Hfi delta 2H,fluid inclusion,,per mil VSMOW,,speleothems,,cavity ring-down spectroscopy,N, ## d2Hfi_num number of samples,fluid inclusion,,count,,speleothems,,cavity ring-down spectroscopy,N,number of repeated measurements ## d2Hfi_err delta 2H,fluid inclusion,,per mil VSMOW,,speleothems,,cavity ring-down spectroscopy,N,square root (standard deviation/N) ## Delta_T_ave air temperature,,,degree Celsius,,speleothems; climate reconstructions,,,N,Anomaly (relative to the average) ## Delta_T_ave_err air temperature,,,degree Celsius,,speleothems; climate reconstructions,,,N, #------------------------ # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing_Values: NA Sample_ID depth_mm Age d18Oca d18Oca_num d18Oca_err Water_content d18Ofi d18Ofi_num d18Ofi_err d2Hfi d2Hfi_num d2Hfi_err Delta_T_ave Delta_T_ave_err HSN1_74.2_76.8mm 75.5 6430 -5.25 2 0.03 0.15 -5.87 1 0.24 -34.63 6 0.89 0.0 0.5 HSN1_83.3_86.3mm 84.8 6488 -5.52 2 0.02 0.14 -5.87 1 0.24 -34.49 4 0.55 1.3 0.3 HSN1_86.6_89.4mm 88.0 6507 -5.07 2 0.04 0.11 -6.31 1 0.24 -37.00 1 1.20 -2.4 0.6 HSN1_89.8_92.8mm 91.3 6527 -5.14 2 0.06 0.14 NA NA NA -33.25 1 1.20 NA NA HSN1_95.4_98.6mm 97.0 6561 -5.38 8 0.03 0.09 -6.15 4 0.12 -33.90 4 0.51 0.7 0.3 HSN1_99.0_101.7mm 100.4 6581 -5.50 2 0.02 0.15 -5.94 1 0.24 -33.64 1 1.20 1.7 0.6 HSN1_102.0_105.9mm 104.0 6603 -5.11 3 0.06 0.08 -6.30 1 0.24 -34.61 5 0.76 -1.1 0.5 HSN1_106.3_109.0mm 107.7 6624 -5.20 2 0.01 0.09 NA NA NA -37.36 4 1.00 NA NA HSN1_109.5_111.5mm 110.5 6641 -5.71 5 0.07 0.12 -6.16 3 0.05 -35.61 3 0.66 1.8 0.3 HSN1_111.9_114.0mm 113.0 6655 -5.47 2 0.00 0.13 -6.54 1 0.24 -36.71 1 1.20 -0.6 0.6 HSN1_114.4_116.7mm 115.6 6670 -5.47 2 0.02 0.11 -6.31 1 0.24 -35.57 1 1.20 0.2 0.6 HSN1_117.0_119.4mm 118.2 6685 -5.32 10 0.02 0.18 -6.05 5 0.14 -34.29 5 0.57 0.4 0.3 HSN1_120.0_123.5mm 121.8 6705 -5.19 12 0.03 0.12 -5.85 5 0.22 -33.52 5 0.73 0.3 0.4 HSN1_123.9_126.7mm 125.3 6725 -5.24 3 0.02 0.04 -6.28 2 0.17 -35.84 2 0.47 -1.0 0.3 HSN1_127.3_130.0mm 128.7 6744 -5.10 4 0.04 0.05 -6.34 2 0.01 -34.97 2 0.82 -1.8 0.2 HSN1_130.5_133.4mm 132.0 6762 -5.03 2 0.01 0.18 -6.06 1 0.24 -33.79 5 0.30 -0.8 0.2 HSN1_133.7_136.2mm 135.0 6779 -5.49 2 0.02 0.22 -6.38 1 0.24 -36.24 1 1.20 -0.1 0.6 HSN1_136.8_139.8mm 138.3 6797 -5.18 5 0.04 0.10 -6.39 3 0.25 -36.06 3 0.59 -1.5 0.4 HSN1_140.0_141.8mm 140.9 6811 -5.34 3 0.03 0.09 -5.72 2 0.07 -33.13 2 0.11 1.3 0.1 HSN1_142.3_145.0mm 143.7 6826 -4.73 4 0.05 0.04 -5.99 2 0.08 -33.14 2 1.47 -2.0 0.4 HSN1_145.5_148.3mm 146.9 6843 -5.26 2 0.06 0.06 -5.92 1 0.24 -34.44 1 1.20 0.3 0.7 HSN1_148.6_152.2mm 150.4 6863 -4.98 10 0.04 0.19 -6.17 5 0.16 -33.97 5 0.92 -1.3 0.5 HSN1_152.6_155.1mm 153.9 6881 -4.94 3 0.03 0.08 -6.34 2 0.01 -33.27 2 0.28 -2.1 0.1 HSN1_155.5_157.3mm 156.4 6895 -5.42 2 0.02 0.07 -5.99 1 0.24 -34.47 1 1.20 0.9 0.6 HSN1_157.7_159.6mm 158.7 6907 -5.68 4 0.02 0.05 -5.91 2 0.06 -32.97 2 0.32 3.0 0.2 HSN1_160.0_162.0mm 161.0 6920 -5.31 3 0.04 0.03 -6.39 2 0.11 -34.41 2 1.05 -0.6 0.4 HSN1_162.4_164.9mm 163.7 6934 -5.03 2 0.00 0.04 -6.07 1 0.24 -33.69 1 1.20 -0.8 0.6 HSN1_165.5_168.0mm 166.8 6951 -5.27 2 0.03 0.04 -6.43 1 0.24 -34.37 1 1.20 -0.4 0.6 HSN1_168.5_171.1mm 169.8 6967 -5.19 4 0.04 0.06 -6.00 2 0.05 -33.34 2 0.23 0.3 0.2 HSN1_171.6_174.0mm 172.8 6983 -5.44 7 0.12 0.06 -6.24 3 0.06 -35.58 3 0.99 0.2 0.5 HSN1_174.3_177.4mm 175.9 6999 -5.07 3 0.07 0.07 -5.93 2 0.08 -33.61 2 0.41 -0.3 0.3 HSN1_177.9_180.6mm 179.3 7018 -5.03 6 0.05 0.17 -5.98 3 0.21 -32.98 3 0.83 -0.3 0.5 HSN1_181.0_183.6mm 182.3 7034 -4.97 5 0.07 0.07 -5.85 2 0.33 -33.14 2 1.46 -0.6 0.8 HSN1_183.9_186.4mm 185.2 7050 -5.38 4 0.04 0.07 -5.87 2 0.26 -34.83 2 0.18 0.3 0.2 HSN1_187.0_189.7mm 188.4 7068 -5.52 3 0.04 0.09 -6.16 2 0.33 -33.89 2 0.48 1.5 0.4 HSN1_190.1_192.4mm 191.3 7083 -5.27 4 0.06 0.13 -5.94 3 0.33 -33.70 3 0.98 0.5 0.6 HSN1_193.0_195.5mm 194.3 7100 -5.17 3 0.02 0.03 -5.60 2 0.43 -28.94 2 2.87 2.5 1.4 HSN1_195.9_198.6mm 197.3 7116 -5.05 4 0.08 0.03 -6.12 2 0.01 -32.90 2 0.09 -0.6 0.3 HSN1_198.9_201.4mm 200.2 7131 -5.08 2 0.06 0.01 -6.47 1 0.24 -38.28 1 1.20 -3.1 0.6 HSN1_201.8_205.1mm 203.5 7149 -5.16 3 0.06 0.03 -6.21 1 0.24 -32.24 1 1.20 0.3 0.7 HSN1_205.5_207.3mm 206.4 7164 -4.61 3 0.07 0.05 -5.82 1 0.24 -31.70 1 1.20 -1.6 0.7 HSN1_207.7_210.8mm 209.3 7179 -5.40 3 0.03 0.14 -5.71 2 0.03 -31.69 2 0.36 2.6 0.2 HSN1_211.0_213.6mm 212.3 7196 -4.84 3 0.03 0.17 -5.75 2 0.09 -32.38 2 0.48 -0.6 0.3 HSN1_214.4_218.0mm 216.2 7217 -4.96 4 0.05 0.21 -5.54 2 0.12 -31.04 2 0.22 0.7 0.3 HSN1_218.3_221.2mm 219.8 7236 -5.44 2 0.03 0.07 -5.82 1 0.24 -31.89 1 1.20 2.4 0.7 HSN1_221.5_223.7mm 222.6 7251 -5.18 2 0.05 0.08 -5.88 1 0.24 -32.93 1 1.20 0.6 0.7 HSN1_224.2_226.6mm 225.4 7267 -4.81 3 0.02 0.03 -6.50 2 0.20 -33.98 2 0.69 -2.3 0.4