# Ball Gown Cave, tropical Western Australia, stable isotope delta 18O data #----------------------------------------------------------------------- # World Data Center for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # 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-search/study/14648 # Online_Resource: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/speleothem/australia/ballgowncave2013wg6.txt # # Original_Source_URL: # # Description/Documentation lines begin with # # Data lines have no # # # Archive: Speleothem #-------------------- # Contribution_Date # Date: 2013-06-17 #-------------------- # Title # Study_Name: Ball Gown Cave, tropical Western Australia, stable isotope delta 18O data #-------------------- # Investigators # Investigators: Denniston,R.F.;Wyrwoll,K-H.;Asmerom,Y.;Polyak,V.J.;Humphreys,W.F.;Cugley,J.;Woods,D.;LaPointe,Z.;Peota,J.;Greaves,E. #-------------------- # Description_and_Notes # A discontinuous, U-Th-dated, stalagmite oxygen isotopic time series from six stalagmites from Ball Gown Cave, tropical Western Australia. # These data are interpreted as tracking Last Glacial through early Holocene variability in the Indo-Australian summer monsoon. # Note: Data file updated 4/2017. U-Th chronology table added, plus updated age estimates and stalagmite raw depth/distance values. #-------------------- # Publication # Authors: Rhawn F. Denniston, Karl-Heinz Wyrwoll, Yemane Asmerom, Victor J. Polyak, William F. Humphreys, John Cugley, David Woods, Zachary LaPointe, Julian Peota, Elizabeth Greaves # Published_Date_or_Year: 2013 # Published_Title: North Atlantic Forcing of Millennial-Scale Australian Monsoon Variability during the Late Glacial. # Journal_Name: Quaternary Science Reviews # Volume: 72 # Edition: # Issue: # Pages: 159-168 # Report_Number: # DOI: http://dx.doi.org/10.1016/j.quascirev.2013.04.012 # Publication_Place: # Publisher: # ISBN: # Online_Resource: # Other_Reference_Details: # Full_Citation: # Abstract: Recent studies of the Last Glacial period Indo-Australian summer monsoon (IASM) have revealed links to both northern and southern hemisphere high latitude climate as well as to regional ocean conditions. Particular interest has been paid to the monsoon response to Heinrich events, with variability explained by meridional shifts in positioning of the intertropical convergence zone (ITCZ), but this model has not been adequately tested. In addition, the shorter-lived Dansgaard/Oeschger (D/O) events have not been detected (beyond D/O-1, the Bølling/Allerød) in land-based records from the Indo-Pacific, despite their prominent expression in stalagmites from southern Asia, raising questions about the sensitivity of the IASM to these events. Here we present a Southern Hemisphere stalagmite oxygen isotopic time series from Ball Gown Cave (BGC), tropical northern Australia, located on the margins of the modern austral summer ITCZ, that spans 40e31 and 27e8 ka. Elevated IASM rainfall coincides with Heinrich stadials and the Younger Dryas, while decreased rainfall characterizes D/O interstadials, a response that is antiphased with sites spanning the Indo-Pacific Warm Pool and with Chinese records of the East Asian summer monsoon. The BGC time series thus reveals a precipitation dipole consistent with a southward northward) migration of the ITCZ during periods of high northern latitude cooling (warming) as the primary driver of millennial-scale IASM variability during the Last Glacial period. Our record indicates a strengthening of the IASM after the Younger Dryas period, likely as a result of rising sea level and sea surface temperatures, breaking the link with the high latitudes. #------------------ # Funding_Agency # Funding_Agency_Name: US National Science Foundation # Grant: AGS-1103413 #------------------ # Site_Information # Site_Name: Ball Gown Cave # Location: Western Australia # Region: # Country: Australia # Northernmost_Latitude: 117.333333 # Southernmost_Latitude: 124.083333 # Easternmost_Longitude: 117.333333 # Westernmost_Longitude: 124.083333 # Elevation: 100 m #------------------ # Data_Collection # Collection_Name: WG6 # Earliest_Year: 16788 # Most_Recent_Year:8373 # Time_Unit: calendar years BP # Core_Length: # Notes: #------------------ # Species: #------------------ # Chronology: # # Age models (distance vs age) were constructed in Excel using either linear interpolation or polynomials, # the latter of which were, in some cases, forced through the data using dummy variables (e.g., artificial dates) # to maintain stratigraphic superposition within each stalagmite. For specifics, please see the original publication. # # # Stalagmite Distance to Top (mm)*a 238U (ng/g) 232Th (pg/g) d234U*b (corr'd) Error*c 230Th/238U (activity) Error 230Th/232Th (ppm) Error Uncorrected Age (yr BP)*d Error (yr) Corrected Age (yr BP)*e Error (yr) # 5 769 31.5 2,427 339.1 2.3 0.2972 0.004 63.6 1.4 27,690 400 26,000 1,730 # 5 727 24.2 2,901 349.6 3 0.3036 0.004 41.9 0.7 28,110 440 25,500 2,650 # 5 463 31 581 345.5 1.6 0.2807 0.003 247 13.2 25,820 290 25,420 500 # 5 435 29.3 886 359.2 1.9 0.2923 0.004 159.7 47.4 26,730 450 26,090 790 # 5 361 29.5 2,916 367.8 3.7 0.3036 0.003 50.7 0.9 27,690 360 25,570 2,150 # 5 297 23.7 999 359.5 2.2 0.3057 0.005 119.8 5 28,130 510 27,230 1,040 # 6 674 41.2 3,064 356.5 2.4 0.0975 0.004 21.7 1 8,160 340 6,550 1,640 # 6 664 45.5 5,129 364.1 3 0.1029 0.003 14.7 0.4 8,575 250 6,070 2,510 # 6 649 51.6 5,081 350.2 2.5 0.1107 0.001 18.6 0.2 9,364 120 7,220 2,140 # 6 565 134.5 7,996 367.1 1.9 0.1303 0.001 36.2 0.3 10,980 70 9,710 1,270 # 6 526 33.1 1,467 363.2 1.9 0.1391 0.003 51.7 1.7 11,800 270 10,850 990 # 6 496 41 1,667 374.5 1.9 0.1422 0.004 57.7 2.8 11,980 330 11,110 920 # 6 484 56.3 5,341 372.1 2.8 0.1509 0.004 426.3 0.7 12,770 320 10,740 2,050 # 6 472 90.3 1,523 373.7 1.5 0.1396 0.002 136.6 6.8 11,750 190 11,390 410 # 6 463 54.2 7,104 371.3 3.4 0.1634 0.003 20.6 0.4 13,900 270 11,090 2,830 # 6 423 143.2 16,113 367.5 2.9 0.1655 0.001 24.3 0.2 14,140 110 11,720 2,420 # 6 356 33.4 2,564 372.6 2.7 0.1641 0.004 35.3 1.2 13,970 400 12,330 1,680 # 6 255 Isochron - see below 15,100 1,500 # 6 – iso 1 255 278 264,209 377.1 4 0.3286 0.001 5.7 0.02 29,750 140 15,200 3,480 # 6 – iso 2 255 166.3 129,450 357.5 5.7 0.2888 0.001 6.1 0.03 26,140 140 15,020 5,430 # 6 – iso 3 255 156.5 46,373 370 3.4 0.2233 0.001 12.4 0.1 19,460 140 13,590 2,900 # 6 – iso 4 255 155.1 31,517 378.1 1.6 0.2105 0.002 17.1 0.2 18,200 160 17,760 270 # 6 – iso 5 255 171.3 66,900 374.3 1.6 0.2314 0.001 9.8 0.1 20,260 130 19,410 440 # 6 33 26.2 1,115 376.1 3.1 0.2035 0.005 79 3.4 17,590 430 16,690 1,000 # 10 602 39.5 492 390.2 3.1 0.3902 0.003 517.2 40.8 36,610 340 36,350 430 # 10 546 40.3 120 384.1 1.5 0.4026 0.002 2,226.70 483 38,230 280 38,170 290 # 10 431 50.6 219 388.9 1.5 0.4123 0.002 1,575.40 141.4 39,200 210 39,110 230 # 10 315 69.9 1,756 393.6 1.6 0.4135 0.001 271.8 2.7 39,170 160 38,640 550 # 11 151 50.7 4,113 431.7 2.8 0.1478 0.005 30.1 84.9 11,940 440 10,290 1,720 # 11 113 73.9 7,052 452.3 2.9 0.1452 0.002 25.1 56.7 11,550 170 9,620 1,930 # 11 91 70.7 2,623 466.7 1.8 0.1376 0.001 61.2 0.7 10,810 80 10,070 740 # 14 139 32.8 4,011 630.6 5.2 0.2825 0.004 38.2 0.7 20,990 330 18,790 2,220 # 14 89 21.1 799 554.9 3.5 0.2937 0.012 128.2 16.7 23,150 1,030 22,440 1,260 # 14 72 30.5 937 597.2 2.1 0.2932 0.004 157.7 7.1 22,430 310 21,870 640 # 14 63 22.2 1,102 559 3.6 0.2836 0.004 94.5 3.1 22,190 350 21,260 990 # 14 8 35.9 1,536 549.4 3.4 0.3092 0.007 119.5 7.3 24,630 590 23,820 1,000 # 16 819 37 1,267 387.6 2.3 0.3554 0.003 171.2 4.9 32,790 320 32,070 790 # 16 724 40.4 390 380.1 1.9 0.3584 0.003 612.5 58.7 33,350 290 33,140 360 # 16 506 42.4 2,180 390.6 2 0.4023 0.005 129.1 3.2 37,960 570 36,870 1,220 # 16 339 69.7 2,338 386.6 1.7 0.3771 0.001 185.7 2.1 35,230 150 34,520 720 # 16 187 40 456 387.2 1.6 0.3952 0.004 572.5 49.3 37,280 420 37,040 480 # # *a Distances are relative to the base of the stalagmite. # *b d234Umeas’d = [(234U/238U)meas'd/(234U/238U)eq-1] x 103, where (234U/238U)eq is secular equilibrium activity ratio: L238/L234 = 1.0. Values are reported as permil. # *c Errors are at the 2sigma level. # *d Present is defined as the year AD 1950. # *e Initial 230Th/232Th atomic ratio of 4.4 x 10-6 ± 50% used to correct for unsupported 230Th. # #---------------- # Variables # ## depth_mm distance from stalagmite base, , , mm, , , , ,N ## age_calBP Age,,,,calendar years BP,,reference period: 8370-40100 yr_BP,,N ## age_calBPcor Age corrected,,,,calendar years BP,,age model in corrigendum to original article,,N ## d18OcarbVPDB delta 18O,calcium carbonate,,,per mil VPDB,speleothem,,,N #---------------- # Data # Missing_Values: # # Data line format - tab-delimited text, variable short name as header depth_mm age_calBP age_calBPcor d18OcarbVPDB 0 16788 17443 -1.97 2 16780 17443 -3.94 3 16776 17407 -3.13 5 16768 17389 -4.00 7 16759 17355 -3.14 8 16755 17355 -3.03 9 16751 17322 -3.48 10 16746 17306 -2.43 12 16738 17290 -2.37 13 16733 17274 -2.51 14 16729 17274 -2.35 15 16724 17244 -2.33 16 16720 17230 -1.69 18 16710 17215 -2.19 20 16701 17201 -2.74 25 16677 17201 -1.50 30 16653 17187 -1.92 35 16627 17160 -2.94 40 16601 17134 -3.44 45 16574 17074 -3.63 50 16546 17018 -3.28 55 16517 16968 -4.25 60 16488 16921 -3.82 65 16457 16879 -3.91 70 16426 16840 -3.48 75 16394 16803 -4.10 80 16361 16769 -4.16 85 16327 16738 -3.11 90 16292 16707 -2.82 95 16257 16678 -3.12 100 16220 16650 -3.56 105 16183 16622 -3.99 110 16145 16595 -3.55 115 16106 16568 -5.31 120 16067 16540 -4.94 125 16026 16512 -4.83 130 15985 16483 -4.74 135 15943 16453 -5.12 140 15900 16422 -4.62 145 15856 16390 -5.00 150 15811 16356 -5.53 155 15766 16320 -3.67 160 15720 16283 -3.92 165 15672 16243 -4.88 170 15624 16202 -3.76 175 15576 16159 -4.14 180 15526 16113 -4.51 185 15475 16065 -3.12 190 15424 16015 -3.78 195 15372 15963 -3.95 200 15319 15908 -3.59 205 15265 15851 -3.81 210 15210 15791 -4.16 215 15155 15729 -4.57 220 15098 15665 -3.96 225 15041 15599 -3.85 230 14983 15530 -1.93 235 14924 15459 -2.67 240 14865 15386 -2.71 245 14804 15311 -1.85 250 14743 15233 -3.87 255 14681 15154 -0.32 260 14618 15073 0.54 265 14554 14990 -0.01 270 14489 14906 0.34 275 14424 14820 0.21 280 14357 14732 0.26 285 14290 14643 -0.41 290 14222 14553 -1.73 295 14153 14462 -0.49 300 14083 14369 0.66 305 14013 14276 -2.45 310 13941 14182 -0.80 315 13869 14088 -2.22 320 13796 13992 -1.58 325 13722 13897 -3.69 330 13648 13801 -2.20 335 13572 13705 -3.62 340 13496 13609 -0.93 345 13418 13514 -2.91 350 13340 13418 -2.30 355 13261 13323 -4.04 360 13182 13228 -2.62 365 13101 13134 -2.10 370 13020 13041 -3.72 375 12937 12948 -3.36 380 12854 12856 -3.27 385 12770 12766 -2.04 390 12686 12676 -3.14 395 12600 12588 -2.49 400 12514 12501 -2.79 405 12427 12416 -3.37 410 12338 12331 -2.25 415 12250 12249 -2.71 420 12160 12168 -1.53 425 12069 12088 -2.41 430 11978 12010 -2.42 435 11886 11934 -2.77 440 11792 11860 -1.82 445 11698 11787 -2.53 450 11604 11716 -2.93 455 11508 11647 -2.80 460 11412 11579 -2.32 465 11314 11513 -3.11 470 11216 11448 -2.78 475 11117 11385 -2.49 480 11018 11324 -2.66 485 10917 11264 -2.40 490 10816 11205 -3.19 495 10713 11147 -2.64 500 10610 11090 -2.63 505 10506 11034 -2.64 510 10401 10978 -3.03 515 10296 10924 -2.62 520 10189 10869 -3.44 525 10082 10815 -3.52 530 9974 10760 -2.22 535 9865 10705 -3.66 540 9755 10649 -4.43 545 9645 10593 -2.73 550 9533 10535 -2.86 555 9421 10475 -1.90 560 9308 10414 -3.90 565 9194 10350 -4.29 570 9079 10284 -3.51 575 8963 10214 -4.94 580 8847 10141 -4.38 585 8730 10064 -4.11 590 8611 9983 -1.73 595 8492 9896 -4.71 600 8373 9804 -5.29