# Jiuxian Cave, China 19KYr Stalagmite Oxygen Isotope Data #---------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #---------------------------------------------------- # 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 # # Data lines have no # # # NOAA_Landing_Page: https://www.ncei.noaa.gov/access/paleo-search/study/9742 # 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-9742.json # Study_Level_JSON_Description: JSON metadata of this data file's parent study, which includes all study metadata. # # Data_Type: Speleothems # # Dataset_DOI: 10.25921/csa8-2y40 # # Science_Keywords: Monsoon #-------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/speleothem/asia/china/jiuxian2010-c996-1-noaa.txt # Data_Download_Description: NOAA Template File; Core C996-1 Oxygen Isotope Data # #-------------------- # Contribution_Date # Date: 2010-10-07 #-------------------- # File_Last_Modified_Date # Date: 2025-03-07 #-------------------- # Title # Study_Name: Jiuxian Cave, China 19KYr Stalagmite Oxygen Isotope Data #-------------------- # Investigators # Investigators: Cai, Y.(https://orcid.org/0000-0001-7063-5050); Tan, L.(https://orcid.org/0000-0003-1932-7102); Cheng, H.(https://orcid.org/0000-0002-5305-9458); An, Z.(https://orcid.org/0000-0002-9538-9826); Edwards, R.L.(https://orcid.org/0000-0002-7027-5881); Kelly, M.J.; Kong, X.; Wang, X.(https://orcid.org/0000-0002-8614-5627) #-------------------- # Description_Notes_and_Keywords # Description: Oxygen isotope data and U-Th dates from two stalagmites collected in 1999 near the end of Jiuxian Cave, Shaanxi Province, central China. Stalagmite C996-1 is ~32 cm in height and 8-13 cm in diameter, and stalagmite C996-2 is ~21 cm in height and 6-9 cm in diameter. Twenty-three and fifteen 230Th dates were acquired from C996-1 and C996-2, respectively. The chronologies show that C996-1 was continuously deposited through the past 8.5 ka BP, and C996-2 grew through the past 19.0 ka BP, excluding two hiatuses between 8.3 and 5.7 ka BP, and 15.4 and 11.9 ka BP. Temporal resolutions for the d18O measurements vary from 4 to 77 years for C996-1, and from 36 to 112 years for C996-2. Jiuxian Cave: 33°34'N, 109°6'E, 1495 m elev. UPDATE 3/2025: sample depths from the SISAL Global Speleothem Isotope Database v2 (https://doi.org/10.25921/s4ze-ve52) were added to data table. #-------------------- # Publication # Authors: Cai, Y., L. Tan, H. Cheng, Z. An, R.L. Edwards, M.J. Kelly, X. Kong, and X. Wang # Journal_Name: Earth and Planetary Science Letters # Published_Title: The variation of summer monsoon precipitation in central China since the last deglaciation # Published_Date_or_Year: 2010 # Volume: 291 # Pages: 21-31 # Issue: 1-4 # Report_Number: # DOI: 10.1016/j.epsl.2009.12.039 # Full_Citation: # Abstract: Two stalagmites (C996-1 and C996-2) collected from the Jiuxian Cave in the Shaanxi Province in central China have been studied with U-series dating and stable isotope analysis. Thirty-eight 230Th dating results showed that the stalagmite C996-1 was continuously deposited through the last 8.5 ka BP (thousand years before present, present=1950 AD), and C996-2 was deposited through the last 19 ka BP excluding two growth hiatuses between 8.3 and 5.7 ka BP, and 15.4 and 11.9 ka BP. With a relatively stable boundary condition, we interpret the d18O of speleothem calcite as most indicative of the amount of summer monsoon precipitation, although temperature and other factors might have some minor impact. The d18O records show notable changes within the last glacial maximum (LGM), resembling other East Asian monsoon records such as those from the Hulu and Sanbao Caves, suggesting that significant monsoonal climate changes occurred in eastern Asia as far north as the Qinling Mountains during the LGM interval. A comparison of our records to precisely dated contemporaneous speleothem records from other caves shows that the increasing trend of d18O during the Holocene commenced as early as ~7.5 ka BP in the low-latitude monsoonal area, i.e. the Hoti Cave, while at higher latitudes this shift occurred later, such as ~7.0 ka BP in the Dongge Cave, ~5.3 ka BP in the Heshang Cave, ~4.7 ka BP in the Sanbao Cave and ~4.5 ka BP in the Jiuxian Cave. These results imply an asynchronous change of the summer monsoon precipitation occurred in East Asia during the Holocene. The asynchrony may be related to the responses of a coupled tropical and subtropical monsoon system to changes of the insolation and the differences in thermal forcing, which result from the complex geographical configuration. The variation of sea surface temperature (SST) in the western tropical Pacific may also have important impacts on the summer monsoon precipitation changes in central and northern China because it affects the Northwestern Pacific Subtropical High, a monsoon-front regulator. More robust tests are needed to confirm this phenomenon and to evaluate the contribution of different factors in detail. #-------------------- # Funding_Agency # Funding_Agency_Name: US National Science Foundation # Grant: 0502535 #-------------------- # Funding_Agency # Funding_Agency_Name: National Basic Research Program of China # Grant: 2004CB720206 #-------------------- # Funding_Agency # Funding_Agency_Name: National Science Foundation of China # Grant: 40403001, 40531003 #-------------------- # Funding_Agency # Funding_Agency_Name: Gary Comer Science and Education Foundation # Grant: CC8 #-------------------- # Site_Information # Site_Name: Jiuxian Cave # Location: China # Northernmost_Latitude: 33.5667 # Southernmost_Latitude: 33.5667 # Easternmost_Longitude: 109.1 # Westernmost_Longitude: 109.1 # Elevation_m: 1495 #-------------------- # Data_Collection # Collection_Name: C996-1 # First_Year: 8614 # Last_Year: -48 # Time_Unit: cal yr BP # Core_Length_m: # Parameter_Keywords: oxygen isotopes # Notes: #-------------------- # Chronology_Information # Chronology: Uranium-Thorium # Chronology_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/templates/noaa-wds-paleo-uth-terms.csv # Chronology_Download_Description: Uranium-Thorium terms and definitions. # Chronology_Notes: 230Th dating results of two stalagmites from Jiuxian cave by ICP-MS. Hiatuses were identified for Stalagmite C996-2 between C996-2-6 & C996-2-7 and between C996-2-1A & C996-2-2A. # Rejection_Rationale: # 238U_Decay_Constant: 1.55125 × 10[−10] year−1 # 234U_Decay_Constant: 2.8263 × 10[−6] year−1 # 230Th_Decay_Constant: 9.1577 × 10[−6] year−1 # Initial_230Th/232Th: 4.4 ± 2.2 × 10[−6] # Initial_230Th/232Th_Method: 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%. # Age_Model_Method: # Missing_Values: na # Chronology_Table: # samp_id date_type depth_top_mm thick_mm 238U_ppb 238U_2s_ppb 232Th_ppt 232Th_2s_ppt d234U_meas_permil d234U_meas_2s_permil 230Th_238U_act 230Th_238U_act_2s age_uncorr_kaBP1950 age_uncorr_2s_ka age_corr_BP1950 age_corr_2s_yr d234U_init_permil d234U_init_2s_permil date_used # C996-1-1 ICP-MS 2 2 383.2 1.3 10278 55 324 4 0.0101 0.0006 0.84 0.05 190 300 324 4 no # C996-1-10A ICP-MS 4 2 330.0 0.9 6505 19 311 4 0.0079 0.0006 0.66 0.05 160 230 311 4 no # MC-46 ICP-MS 19 2 306.5 0.6 2340 15 328 2 0.0062 0.0003 0.51 0.02 290 90 328 2 yes # JA-10 ICP-MS 40 2 380.3 0.5 690 6 318 2 0.0070 0.0001 0.58 0.01 480 20 318 2 yes # C996-1-9A ICP-MS 54 2 329.3 0.8 2124 11 304 3 0.0108 0.0004 0.91 0.03 710 80 304 3 yes # C996-1-2 ICP-MS 57.25 2.5 325.9 1.2 8502 52 321 5 0.0151 0.0009 1.26 0.07 630 300 322 5 no # C996-1-8A ICP-MS 72 2 269.8 0.6 2654 10 344 3 0.0184 0.0005 1.50 0.04 1230 110 345 3 yes # JA-9 ICP-MS 84 2 381.7 0.6 527 6 318 2 0.0177 0.0002 1.48 0.02 1390 20 320 2 yes # C996-1-6A ICP-MS 105.5 1 279.0 0.6 10754 31 380 4 0.0357 0.0012 2.85 0.10 1980 420 382 4 yes # C996-1-5A ICP-MS 116 2 251.6 0.5 1458 8 319 3 0.0348 0.0006 2.92 0.05 2730 80 321 3 yes # C996-1-3 ICP-MS 118.5 2 256.3 0.8 9159 46 297 4 0.0442 0.0011 3.78 0.10 2920 410 300 4 no # C996-1-4 ICP-MS 142 2 307.4 0.8 2399 25 331 3 0.0439 0.0006 3.65 0.05 3430 100 335 3 yes # JA-8 ICP-MS 161 2 391.3 0.6 791 5 333 2 0.0468 0.0003 3.90 0.03 3800 40 336 2 yes # C996-1-5 ICP-MS 188 2 312.3 0.7 2409 32 360 3 0.0516 0.0007 4.22 0.06 4000 100 364 3 yes # C996-1-4A ICP-MS 202 2 257.9 0.7 31487 145 309 4 0.0908 0.0030 7.83 0.27 5040 1410 314 5 no # C996-1-6 ICP-MS 217.5 2 211.6 0.6 9576 51 315 4 0.0755 0.0017 6.44 0.15 5380 530 320 4 no # C996-1-3A ICP-MS 220 2 209.8 0.5 4306 16 303 4 0.0655 0.0012 5.62 0.11 4640 470 307 5 no # JA-7 ICP-MS 237.5 3 309.9 0.3 2530 8 290 1 0.0569 0.0005 4.92 0.04 4680 100 294 1 yes # C996-1-7 ICP-MS 254 2 189.6 0.5 3809 28 284 3 0.0728 0.0011 6.36 0.10 5850 250 288 3 no # C996-1-2A ICP-MS 278 2 177.7 0.4 5236 18 254 5 0.0725 0.0016 6.49 0.15 5760 370 258 5 yes # C996-1-8 ICP-MS 283.75 2.5 191.6 0.5 30227 203 289 4 0.1180 0.0045 10.44 0.42 6790 1880 295 4 no # C996-1-1A ICP-MS 300 2 208.6 1.0 15265 41 370 9 0.0998 0.0020 8.23 0.18 6620 800 377 10 yes # MC-45 ICP-MS 314 2 325.4 0.6 246 13 323 2 0.0911 0.0008 7.76 0.07 7690 70 330 2 yes #-------------------- # 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_mm depth,,,millimeter,,speleothems,,,N, ## age_calBP age,,,calendar year before present,,speleothems,,,N, ## d18Ovpdb delta 18O,calcium carbonate,,per mil VPDB,,speleothems,raw,isotope ratio mass spectrometry,N, #-------------------- # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing_Values: depth_mm age_calBP d18Ovpdb 0.029411765 -48 -7.87 0.205882353 -45 -8.03 0.382352941 -42 -8.02 0.558823529 -39 -8.3 0.735294118 -35 -8.33 1 -31 -8.39 1.176470588 -28 -8.24 1.352941176 -25 -7.99 1.529411765 -21 -8.03 1.735294118 -18 -7.95 2.205882353 -9 -7.54 2.382352941 -6 -8.34 2.558823529 -3 -8.42 2.62 -2 -8.62 2.764705882 0 -8.55 3 5 -8.5 3.205882353 8 -8.68 3.382352941 12 -8.38 3.558823529 15 -8.1 3.66 16 -8.51 3.764705882 18 -8.99 4.235294118 27 -9.59 4.411764706 30 -9.73 4.588235294 33 -9.16 4.794117647 37 -8.62 5 40 -9.05 5.192307692 44 -9.15 5.384615385 47 -9.41 5.576923077 51 -8.59 5.769230769 54 -8.65 6 58 -9 6.217948718 62 -9.95 6.41025641 65 -8.65 6.6 69 -8.53 6.602564103 69 -8.15 6.794871795 72 -8.93 7.243589744 80 -9.08 7.435897436 84 -9.38 7.628205128 87 -10.39 7.820512821 90 -10.93 8 94 -9.54 8.237179487 98 -8.85 8.429487179 101 -8.77 8.621794872 105 -8.09 8.814102564 108 -7.78 9 111 -8.06 9.198717949 115 -9.01 9.391025641 118 -9.42 9.583333333 122 -9.25 9.807692308 126 -9.57 10 129 -9.69 10.21582734 133 -9.53 10.43165468 137 -10.23 10.61151079 140 -10.23 10.82733813 144 -10.74 11 147 -8.89 11.22302158 151 -8.97 11.4028777 154 -8.83 11.61870504 158 -9.31 11.83453237 162 -7.75 12 165 -7.9 12.1942446 168 -8.76 12.41007194 172 -8.17 12.58992806 175 -7.74 12.8057554 179 -8.19 13 182 -8.68 13.23741007 187 -8.91 13.41726619 190 -8.63 13.5971223 193 -8.64 13.77697842 196 -9 14 200 -8.83 14.20863309 204 -8.48 14.38848921 207 -8.11 14.56834532 210 -8.25 14.78417266 214 -7.76 15 218 -7.84 15.22222222 222 -8.86 15.40740741 225 -8.94 15.59259259 228 -8.83 15.77777778 232 -9.21 16 236 -8.91 16.18518519 239 -9.1 16.37037037 242 -9.18 16.55555556 246 -9.4 16.77777778 250 -9.05 17 253 -9.11 17.22222222 257 -9.77 17.40740741 261 -9.84 17.5 262 -9.49 17.59259259 264 -9.07 17.81481481 268 -8.4 18.1 273 -8.5 18.22222222 275 -8.67 18.40740741 279 -8.91 18.59259259 282 -9.17 18.77777778 285 -9.2 19.22222222 291 -9.42 19.40740741 293 -9.79 19.59259259 294 -9.9 19.77777778 296 -10.1 20.18018018 300 -9.75 20.40540541 302 -9.33 20.5 303 -9.21 20.58558559 304 -8.95 20.81081081 306 -9.17 21.17117117 309 -8.83 21.35135135 311 -9.22 21.53153153 312 -9.64 21.6 313 -9.86 21.75675676 315 -9.87 22 317 -9.37 22.20720721 319 -9.65 22.6 322 -9.28 23 326 -8.44 23.2 328 -7.46 23.4 330 -7.96 23.6 332 -8.23 23.8 334 -8.2 24 335 -8.35 24.13333333 337 -8.52 24.3 338 -8.88 24.46666667 340 -8.93 24.63333333 341 -9 24.8 343 -9.1 25 345 -8.95 25.33707865 348 -8.96 25.73033708 351 -8.55 26 354 -8.44 26.29213483 357 -8.32 26.62921348 360 -8.24 26.79775281 361 -8.64 27 363 -8.88 27.13483146 364 -8.73 27.41573034 367 -9.07 27.69662921 370 -9.34 28 373 -10.4 28.20224719 374 -10.1 28.48314607 377 -9.87 28.76404494 380 -10.44 29 382 -10.41 29.15730337 383 -9.93 29.38202247 385 -9.4 29.66292135 388 -8.81 30 391 -8.35 30.13274336 392 -8.48 30.3539823 394 -8.33 30.57522124 397 -8.15 30.79646018 399 -8.07 31 400 -8.24 31.10619469 401 -8.47 31.32743363 403 -8.69 31.54867257 406 -8.7 31.7699115 408 -8.9 32 410 -9.16 32.07964602 410 -9.29 32.30088496 413 -9.25 32.56637168 415 -8.62 32.78761062 417 -8.94 33 419 -8.67 33.18584071 421 -8.6 33.40707965 423 -8.64 33.62831858 425 -9.03 33.80530973 427 -8.92 34 428 -9.28 34.24778761 431 -9.41 34.42477876 432 -9.39 34.60176991 434 -9.07 34.82300885 436 -9.43 35 438 -9.32 35.15748032 439 -9.55 35.35433071 441 -8.84 35.5511811 443 -9.31 35.7480315 445 -9.49 36 447 -9.45 36.18110236 449 -8.94 36.41732283 451 -8.66 36.61417323 453 -8.49 36.81102362 454 -8.57 37 456 -8.75 37.20472441 458 -8.64 37.4015748 460 -8.65 37.5984252 462 -8.56 37.79527559 464 -8.64 38.18897638 467 -8.71 38.3 468 -9.36 38.42519685 469 -9.4 38.62204724 471 -9.24 38.81889764 473 -9.04 39 475 -9.1 39.21259843 477 -9.37 39.40944882 479 -9.21 39.60629921 480 -9.4 39.80314961 482 -9.38 40 484 -10.01 40.175 487 -9.22 40.35 490 -9.23 40.525 493 -9.28 40.7 495 -9.21 40.875 498 -9.47 41 500 -9.92 41.19 503 -10.08 41.365 506 -10.17 41.5 508 -9.2 41.7625 512 -9.2 42 516 -10.28 42.2 519 -9.38 42.4625 524 -9.63 42.725 528 -9.27 43 532 -9.02 43.20625 536 -8.49 43.425 539 -9.06 43.73125 544 -9.36 44 548 -9.98 44.2125 552 -9.23 44.43125 555 -9.15 44.55 557 -9.17 44.65 559 -9.05 44.86875 562 -8.02 45.1 566 -8.27 45.21008403 568 -8.67 45.42016807 571 -9.11 45.6302521 574 -8.8 45.84033613 578 -8.72 46.2 584 -8.7 46.2184874 584 -8.17 46.42857143 587 -8.5 46.63865546 591 -8.21 46.7 592 -8.23 46.8487395 594 -7.72 47.22689076 600 -7.07 47.43697479 604 -7.33 47.64705882 607 -7.93 47.7 608 -7.79 47.81512605 610 -8.39 48.19327731 616 -9.29 48.40336134 619 -9.24 48.61344538 622 -9.23 48.82352941 626 -9.38 49.20168067 632 -9 49.45378151 636 -9.57 49.70588235 640 -9.14 50 645 -9.48 50.22727273 648 -8.19 50.45454545 652 -7.82 50.68181818 656 -7.78 51 661 -7.48 51.22727273 664 -7.44 51.5 669 -7.44 51.6 670 -7.39 51.77272727 673 -7.84 52.22727273 681 -8.44 52.5 685 -9.37 52.72727273 689 -8.82 53 693 -8.92 53.22727273 697 -8.7 53.45454545 700 -8.75 53.72727273 705 -8.99 54 709 -8.67 54.22727273 716 -9.07 54.45454545 722 -8.87 54.72727273 730 -8.69 55 738 -9.07 55.2173913 745 -9.8 55.43478261 751 -11.11 55.65217391 757 -11.18 55.7 759 -9.66 55.82608696 762 -11.97 56.2 773 -11.14 56.2173913 774 -10.52 56.43478261 780 -10.45 56.65217391 786 -7.87 56.86956522 793 -7.81 57 797 -7.72 57.2173913 803 -7.43 57.43478261 809 -6.97 57.65217391 815 -7.22 57.7 817 -7.19 57.82608696 821 -7.52 58.2173913 832 -7.96 58.3 834 -8.44 58.43478261 838 -8.47 58.65217391 845 -8.68 58.82608696 850 -8.81 59.17391304 860 -8.8 59.39130435 866 -8.48 59.60869565 873 -8.01 59.7 875 -7.89 59.82608696 879 -7.62 60.17361111 889 -7.87 60.34722222 894 -8.08 60.52083333 899 -8.32 60.69444444 904 -8.16 60.86805556 909 -8.03 61.21527778 920 -7.94 61.42361111 925 -7.88 61.5 928 -8.07 61.63194444 932 -8.45 61.84027778 938 -8.58 62 942 -8.92 62.22222222 949 -9.32 62.43055556 955 -9.43 62.63888889 961 -9.84 62.8125 966 -9.66 63 972 -7.98 63.15972222 976 -8.01 63.33333333 981 -7.7 63.50694444 986 -7.85 63.68055556 991 -8.05 63.85416667 996 -8 64 1001 -7.65 64.16666667 1006 -8.13 64.34027778 1011 -8.88 64.51388889 1016 -9.19 64.6875 1021 -9.03 64.86111111 1026 -8.72 65 1030 -8.61 65.19083969 1035 -8.6 65.38167939 1041 -8.55 65.57251908 1047 -9.26 65.76335878 1052 -10.03 66 1059 -9.67 66.18320611 1064 -8.38 66.3740458 1070 -8.87 66.5648855 1075 -8.64 66.75572519 1081 -9.31 67 1088 -9.89 67.13740458 1092 -9.37 67.32824427 1098 -8.91 67.51908397 1103 -8.92 67.70992366 1109 -7.78 67.86259542 1113 -7.75 68 1117 -8.14 68.20610687 1124 -8.28 68.39694656 1129 -8.47 68.58778626 1135 -9.07 68.77862595 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