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Li, Gang (2022): 87Sr/86Sr results of Well NK1 from southern South China Sea [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.945012

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Abstract:
Bio-carbonates from Well NK1 were sampled from every chip using a micro-drill. Twenty-four chips were drilled twice and the duplicate samples were used for quality control. Sub-samples of 50 mg were firstly leached with 0.3 N acetic acid and Milli-Q water for 30 min to remove absorbed salt. Rinsed samples were placed in 1.5 ml of 1.0 N acetic acid and sonicated for 2 hrs. Elemental compositions of the carbonate phase were firstly measured on the ICP-MS using 0.5 mL of supernatant. Elemental concentrations and 87Sr/86Sr isotope of insoluble residue from one sample (NK1-Nd-73 at 721.85 m) were measured. Insoluble residue of this sample was digested using a mixture of HNO3 (0.2 ml) and HF (0.8 ml). Following a modified procedure by Deniel and Pin (2001), one-half milliliter of supernatant was loaded to the preconditioned Sr-Spec columns to separate strontium. Strontium-isotope ratios were measured on a Nu Plasma high-resolution (HR) multi-collector ICP-MS at the Radiogenic Isotope Facility, University of Queensland. The standard deviation of triple measurements is 0.000009 on average. During the course of measurements, analyses of NBS SRM987 yield a mean 87Sr/86Sr ratio of 0.710222 ± 20 (2σ). All data are normalized to 86Sr/88Sr = 0.1194 and the 87Sr/86Sr are corrected to SRM987 =0.710249 ± 28 (2σ) to reflect the long-term drift.
Keyword(s):
87Sr/86Sr; Collision; Coral atoll; Deep Drilling; Hiatus
Supplement to:
Li, Gang; Xu, Weihai; Luo, Yun; Liu, Jianguo; Zhao, Jian-Xin; Feng, Yuexing; Cheng, Jun; Sun, Zhen; Xiang, Rong; Xu, Min; Yan, Wen (2022): Strontium isotope stratigraphy and LA-ICP-MS U-Pb carbonate age constraints on the Cenozoic tectonic evolution of the southern South China Sea. Geological Society of America Bulletin, https://doi.org/10.1130/B36365.1
Source:
Li, Gang; Xu, Weihai; Luo, Yun; Liu, Jianguo; Zhao, Jian-Xin; Feng, Yuexing; Cheng, Jun; Sun, Zhen; Xiang, Rong; Xu, Min; Yan, Wen: Supplemental Material: Strontium isotope stratigraphy and LA-ICP-MS U-Pb carbonate age constraints on the Cenozoic tectonic evolution of the southern South China Sea. figshare, https://doi.org/10.1130/GSAB.S.19416395.v1
Funding:
National Natural Science Foundation of China (NSFC), grant/award no. 41976062
National Natural Science Foundation of China (NSFC), grant/award no. 41976063
National Natural Science Foundation of China (NSFC), grant/award no. 42176079
Coverage:
Latitude: 9.920000 * Longitude: 115.560000
Minimum DEPTH, sediment/rock: 5.12 m * Maximum DEPTH, sediment/rock: 990.16 m
Event(s):
NK1 * Latitude: 9.920000 * Longitude: 115.560000 * Elevation: 3.0 m * Recovery: 2020.2 m * Location: South China Sea * Method/Device: Core wireline system (CWS) * Comment: Drilled from May 2017 to January 2018
Comment:
*Median standard deviations for triple measurements.
**Median standard deviation incorporating the external SRM987 errors with measurement errors of samples and the standard.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Sample numberSample noLi, Gang
DEPTH, sediment/rockDepth sedmLi, GangGeocode
Strontium-87/Strontium-86 ratio87Sr/86SrLi, Gang
Strontium-87/Strontium-86 ratio, standard deviation87Sr/86Sr std dev±Li, Gang2σ*
Strontium-87/Strontium-86 ratio, standard deviation87Sr/86Sr std dev±Li, Gang2σ**
Age, datedAge datedkaLi, GangLOWESS 6 calibration curve of McArthur et al. (2020) after incorporating all errorsMean
Age, dated, range, minimumAge dated minkaLi, GangLOWESS 6 calibration curve of McArthur et al. (2020) after incorporating all errors
Age, dated, range, maximumAge dated maxkaLi, GangLOWESS 6 calibration curve of McArthur et al. (2020) after incorporating all errors
CommentCommentLi, Gang
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1806 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Sample no

Depth sed [m]

87Sr/86Sr

87Sr/86Sr std dev [±]
(2σ*)

87Sr/86Sr std dev [±]
(2σ**)

Age dated [ka]
(Mean)

Age dated min [ka]

Age dated max [ka]

Comment
NK1-Sr-015.120.70917890.00000690.000035100900
NK1-Sr-01-15.120.70917820.00000900.000035600920repeated
NK1-Sr-0211.060.70917560.00000620.000035000960
NK1-Sr-0315.680.70916830.00000910.000035623001120
NK1-Sr-0419.000.70916720.00000930.000035726001140
NK1-Sr-04-119.000.70916270.00000720.000035238001210repeated
NK1-Sr-0523.360.70918560.00000840.000035400760
NK1-Sr-0627.300.70917870.00001080.000036100920
NK1-Sr-0730.880.70918270.00000780.000035300820
NK1-Sr-0835.500.70915820.00000920.000035652001280
NK1-Sr-0940.500.70917120.00000890.000035616001070
NK1-Sr-1044.280.70914660.00001070.000036081001450
NK1-Sr-10-144.280.70913220.00000900.000035610902101780repeated
NK1-Sr-1148.000.70916330.00000960.000035736001210
NK1-Sr-1251.780.70913890.00000750.000035297001580
NK1-Sr-1356.460.70916010.00000890.000035546001250
NK1-Sr-1461.200.70915260.00000910.000035667001350
NK1-Sr-1565.260.70913950.00000870.000035596001570
NK1-Sr-1670.220.70912600.00000890.000035511803701990
NK1-Sr-1774.620.70912930.00001060.000036011402601910
NK1-Sr-1879.860.70910760.00000960.000035714308602570
NK1-Sr-1985.550.70911810.00000830.000035412906102220
NK1-Sr-2089.820.70911680.00001070.000036013006302280
NK1-Sr-20-189.820.70911630.00000830.000035413106602280repeated
NK1-Sr-2194.710.70912510.00000990.000035811904002030
NK1-Sr-22100.500.70913580.00000750.000035210301301650
NK1-Sr-23105.040.70909900.00000810.0000354160010202970
NK1-Sr-24109.940.70910470.00000930.000035714809202670
NK1-Sr-25113.850.70909220.00000800.0000353182011203780
NK1-Sr-26118.120.70909990.00000910.0000356158010102910
NK1-Sr-27123.090.70912990.00000930.000035611302601870
NK1-Sr-28125.330.70912330.00000800.000035312204702070
NK1-Sr-29125.840.70914040.00000940.000035794001550
NK1-Sr-30130.230.70914090.00000980.000035893001550
NK1-Sr-30-1130.230.70912560.00000990.000035811903802020repeated
NK1-Sr-31138.140.70913040.00000900.000035611202501850
NK1-Sr-32143.610.70911090.00001140.000036213907702460
NK1-Sr-33148.450.70908890.00000830.0000354192011604370
NK1-Sr-34154.050.70906250.00000900.0000356288015205410
NK1-Sr-35158.690.70903310.00000860.0000355511024105980
NK1-Sr-36163.580.70908640.00000770.0000353200011904530
NK1-Sr-37164.260.70908900.00000810.0000353192011604370
NK1-Sr-38169.500.70904730.00000800.0000353450019905720
NK1-Sr-39172.930.70909880.00000820.0000354160010302990
NK1-Sr-40178.220.70907050.00000890.0000356248013905180
NK1-Sr-40-1178.220.70905380.00000980.0000358370017605610repeated
NK1-Sr-41182.300.70909150.00000780.0000353184011303940
NK1-Sr-42187.910.70907190.00000890.0000355243013705130
NK1-Sr-43192.390.70909870.00000860.0000355161010303010
NK1-Sr-44200.480.70906790.00000960.0000357258014305260
NK1-Sr-45204.180.70906400.00000900.0000356277014905370
NK1-Sr-46210.180.70905750.00000980.0000358328016405540
NK1-Sr-47215.580.70907750.00000990.0000358225013004960
NK1-Sr-48221.980.70906260.00001050.0000360287015105420
NK1-Sr-49225.990.70907070.00000870.0000355247013905170
NK1-Sr-50229.930.70906230.00000830.0000354289015305410
NK1-Sr-50-1229.930.70906080.00000830.0000354300015605450repeated
NK1-Sr-51234.520.70907710.00000950.0000357226013004960
NK1-Sr-52237.580.70906930.00000890.0000355252014105210
NK1-Sr-53243.480.70905990.00000970.0000358307015805480
NK1-Sr-54246.640.70904990.00001050.0000360426018905680
NK1-Sr-55251.480.70905090.00000910.0000356412018705660
NK1-Sr-56260.780.70904130.00000850.0000354482021605830
NK1-Sr-57266.480.70902150.00000890.0000355544030906180
NK1-Sr-58273.000.70902390.00000910.0000356538029006140
NK1-Sr-59279.010.70903120.00000890.0000355516024706020
NK1-Sr-60284.500.70902210.00000960.0000357542030406170
NK1-Sr-60-1284.500.70902860.00000910.0000356524026006060repeated
NK1-Sr-61287.580.70896120.00000820.0000354667058408600
NK1-Sr-62285.780.70895830.00001010.0000359676058908800
NK1-Sr-63292.280.70895550.00000950.0000357685059408940
NK1-Sr-64297.380.70896400.00000920.0000356659057908450
NK1-Sr-65303.980.70895920.00001020.0000359673058708750
NK1-Sr-66308.380.70896380.00000860.0000355660057908460
NK1-Sr-67314.280.70897090.00000860.0000355642056708070
NK1-Sr-68315.980.70897040.00000800.0000353643056808090
NK1-Sr-69320.880.70895230.00000840.0000354695060109080
NK1-Sr-70324.380.70897050.00000740.0000352643056808070
NK1-Sr-70-1324.380.70895240.00000940.0000357695060009090repeated
NK1-Sr-71329.880.70893900.00001090.0000361751062309570
NK1-Sr-72334.110.70896190.00000920.0000356665058308580
NK1-Sr-73337.680.70893970.00000870.0000355746062309520
NK1-Sr-74338.100.70891090.00000920.00003569140702010550
NK1-Sr-75343.600.70893600.00000950.0000357769063009650
NK1-Sr-76347.680.70891840.00000730.00003528770679010270
NK1-Sr-77352.680.70891300.00000860.00003559060695010470
NK1-Sr-78355.180.70890600.00000700.00003519310722010720
NK1-Sr-79360.730.70892630.00001040.00003598330654010010
NK1-Sr-80365.580.70893880.00001060.0000360751062309570
NK1-Sr-80-1365.580.70893630.00000810.0000353767063009630repeated
NK1-Sr-81369.100.70892280.00000830.00003548530665010120
NK1-Sr-82372.780.70892190.00000770.00003538580668010150
NK1-Sr-83376.580.70894910.00000850.0000354707060609200
NK1-Sr-84380.860.70891840.00000930.00003568770677010280
NK1-Sr-85386.230.70892730.00000940.0000357827065209960
NK1-Sr-86392.080.70891690.00000880.00003558860683010340
NK1-Sr-87397.840.70890980.00001070.00003609180704010610
NK1-Sr-88402.710.70893270.00000980.0000358793063809770
NK1-Sr-89409.140.70889970.00000920.00003569550747011000
NK1-Sr-90414.720.70891100.00000840.00003549140702010540
NK1-Sr-91420.330.70891620.00000720.00003528900686010350
NK1-Sr-92423.780.70890620.00000850.00003549300720010720
NK1-Sr-93428.280.70893910.00000770.0000353750062509540
NK1-Sr-94432.780.70891380.00000670.00003509020694010430
NK1-Sr-95436.780.70894920.00000880.0000355707060609210
NK1-Sr-96441.850.70890620.00000820.00003549310720010720
NK1-Sr-97450.880.70898630.00000780.0000353610053207150
NK1-Sr-98454.530.70891910.00000770.00003538730677010250
NK1-Sr-99462.280.70889080.00000740.00003529870807011360
NK1-Sr-100465.500.70889620.00000850.00003549670769011130
NK1-Sr-100-1465.500.70889620.00000850.00003549670769011130repeated
NK1-Sr-101476.000.70895340.00000840.0000354692059909040
NK1-Sr-102476.780.70895860.00000990.0000358675058808780
NK1-Sr-103482.000.70889710.00000910.00003569640762011100
NK1-Sr-104489.080.70890230.00001080.00003619440733010910
NK1-Sr-105494.340.70891290.00000880.00003559070695010480
NK1-Sr-106498.480.70886240.00000960.000035710910946012830
NK1-Sr-107504.580.70887760.00000890.000035510330881012010
NK1-Sr-108509.900.70893660.00000920.0000356765062909630
NK1-Sr-109512.480.70887310.00001020.000035910500902012250
NK1-Sr-110516.760.70888330.00000920.000035610130848011720
NK1-Sr-110-1516.760.70888080.00000940.000035710220863011850repeated
NK1-Sr-111523.130.70890080.00000940.00003579500741010950
NK1-Sr-112525.720.70888960.00000880.00003559910812011430
NK1-Sr-113529.540.70889530.00001010.00003599710773011190
NK1-Sr-114533.880.70886950.00000840.000035410630921012410
NK1-Sr-115537.880.70892850.00000860.0000355820064909910
NK1-Sr-116539.380.70845940.00000980.0000358198001925020380
NK1-Sr-117541.280.70863850.00000910.0000356174201692017920variegated
NK1-Sr-118542.480.70858040.00000940.0000357181601767018670variegated
NK1-Sr-119543.280.70844520.00000810.0000353200101945020580
NK1-Sr-120546.980.70846730.00000820.0000354196901915020260
NK1-Sr-120-1546.980.70850620.00000860.0000355191501862019700repeated
NK1-Sr-121551.180.70846080.00000790.0000353197801924020350
NK1-Sr-122555.480.70848410.00000840.0000354194501892020020
NK1-Sr-123558.080.70875100.00000980.0000358158601490016480variegated
NK1-Sr-124564.140.70854750.00000980.0000358185901808019120variegated
NK1-Sr-125569.000.70852580.00001060.0000360188801835019430variegated
NK1-Sr-126573.850.70841360.00000790.0000353204701990021060
NK1-Sr-127578.890.70843060.00001090.0000361202201964020810
NK1-Sr-128583.480.70877870.00000910.0000356153001323016050variegated
NK1-Sr-129586.080.70844780.00000910.0000356199701941020550
NK1-Sr-130590.740.70844290.00000850.0000354200401948020620
NK1-Sr-130-1590.740.70844880.00000860.0000355199601940020530repeated
NK1-Sr-131596.030.70840620.00000820.0000354205802000021180
NK1-Sr-132598.280.70841880.00000960.0000357203901982020990
NK1-Sr-133602.400.70840520.00000860.0000355205902002021190
NK1-Sr-134607.330.70840410.00000840.0000354206102004021210
NK1-Sr-135612.380.70842600.00000950.0000357202901972020880
NK1-Sr-136616.350.70835490.00000850.0000354213602076022000variegated
NK1-Sr-137620.430.70829100.00001090.0000361224002174023090
NK1-Sr-138621.380.70830640.00000760.0000352221402151022800variegated
NK1-Sr-139621.510.70839480.00000840.0000354207502017021360variegated
NK1-Sr-139-1621.510.70838900.00000750.0000352208402026021450variegated;repeated
NK1-Sr-140624.200.70834680.00000950.0000357214902088022130variegated
NK1-Sr-141627.490.70826810.00000790.0000353227902212023480variegated
NK1-Sr-142629.260.70838740.00000890.0000355208602028021480variegated
NK1-Sr-143634.030.70825430.00000740.0000352230302236023720
NK1-Sr-144641.730.70830270.00000790.0000353222002156022870
NK1-Sr-145644.140.70829030.00000720.0000352224102176023080
NK1-Sr-146648.280.70828140.00000890.0000355225602190023250
NK1-Sr-147652.560.70826020.00000910.0000356229302225023630
NK1-Sr-148654.740.70824650.00000890.0000355231702249023870
NK1-Sr-149658.420.70829210.00000860.0000355223802173023060
NK1-Sr-149-1658.420.70833300.00000930.0000357217102109022360repeated
NK1-Sr-150662.080.70824940.00000860.0000355231202244023820
NK1-Sr-151665.280.70834960.00000740.0000352214502085022080variegated
NK1-Sr-152666.280.70828340.00000790.0000353225302187023210
NK1-Sr-153670.840.70831300.00000810.0000353220302140022690
NK1-Sr-154672.960.70826040.00000850.0000354229202225023620
NK1-Sr-155677.200.70826980.00000860.0000355227602209023450
NK1-Sr-156680.630.70828570.00000860.0000355224902183023170
NK1-Sr-157684.720.70825400.00000850.0000354230402236023730
NK1-Sr-158689.680.70824940.00000760.0000352231202244023810variegated
NK1-Sr-159694.010.70826310.00000790.0000353228802221023570variegated
NK1-Sr-159-1694.010.70827780.00000840.0000354226202196023310variegated;repeated
NK1-Sr-160699.900.70824310.00000980.0000358232302254023930
NK1-Sr-161704.640.70825710.00000780.0000353229802231023680
NK1-Sr-162708.860.70826970.00001020.0000359227602209023460
NK1-Sr-163713.470.70827000.00000840.0000354227602209023450
NK1-Sr-164717.530.70825760.00000810.0000353229702230023670
NK1-Sr-165720.500.70827050.00000780.0000353227502208023440
NK1-Nd-73721.850.70826130.00000680.0000351229102224023600carbonate phase
NK1-Nd-73721.850.70894010.00000680.0000351744062309500insoluble residue
NK1-Sr-166725.500.70876120.00000910.0000356156801437016320variegated
NK1-Sr-166-1725.500.70878710.00000850.0000354150301270015910variegated;repeated
NK1-Sr-167727.620.70826540.00000890.0000355228402216023530variegated
NK1-Sr-168731.760.70825510.00000820.0000354230202234023710
NK1-Sr-169735.240.70829280.00000750.0000352223702172023040
NK1-Sr-170740.500.70829780.00000920.0000356222802163022960
NK1-Sr-170-1740.500.70829100.00000820.0000354224002175023080repeated
NK1-Sr-171743.980.70827460.00000880.0000355226802201023370
NK1-Sr-172747.600.70823660.00000840.0000354233402266024040
NK1-Sr-173751.480.70824620.00000890.0000355231702249023870
NK1-Sr-174756.240.70826160.00000790.0000353229002223023600
NK1-Sr-175760.280.70822380.00000850.0000354235702288024280
NK1-Sr-176764.650.70825960.00000850.0000354229402226023630
NK1-Sr-177769.500.70826370.00000860.0000355228702219023560
NK1-Sr-178774.000.70827330.00000810.0000353227002204023390
NK1-Sr-179778.630.70826970.00000840.0000354227602209023450
NK1-Sr-180782.800.70824120.00000930.0000357232602258023960
NK1-Sr-180-1782.800.70824120.00000930.0000357232602258023960repeated
NK1-Sr-181787.000.70822860.00000880.0000355234802280024190
NK1-Sr-182791.620.70825390.00000930.0000357230402236023740
NK1-Sr-183796.200.70825030.00000860.0000355231002242023800
NK1-Sr-184800.910.70828560.00000860.0000355224902183023170
NK1-Sr-185804.900.70834390.00000690.0000351215302093022170
NK1-Sr-186809.430.70822970.00000880.0000355234602278024170
NK1-Sr-187815.180.70820540.00000950.0000357239002320024620
NK1-Sr-188820.920.70820910.00000920.0000356238302313024550
NK1-Sr-189825.240.70822350.00000860.0000355235802289024280
NK1-Sr-190830.200.70820660.00000880.0000355238802318024600
NK1-Sr-190-1830.200.70819710.00000910.0000356240502334024780repeated
NK1-Sr-191835.150.70824800.00000850.0000354231402246023840
NK1-Sr-192839.420.70832820.00000890.0000355217902117022440variegated
NK1-Sr-193844.900.70830660.00000890.0000355221402150022810variegated
NK1-Sr-194849.190.70817120.00000860.0000355245302381025260
NK1-Sr-195855.450.70825400.00000860.0000355230402236023730
NK1-Sr-196858.300.70830420.00000890.0000355221802154022850variegated
NK1-Sr-197861.700.70823700.00000820.0000354233302265024040
NK1-Sr-198866.370.70816870.00000860.0000355245702385025310
NK1-Sr-199871.400.70816530.00000850.0000354246402392025370
NK1-Sr-200876.070.70818790.00000880.0000355242202351024950
NK1-Sr-200-1876.070.70818750.00000810.0000353242202352024950repeated
NK1-Sr-201882.000.70819200.00000780.0000353241402344024870
NK1-Sr-202886.230.70826410.00000820.0000354228602219023550
NK1-Sr-203887.950.70818240.00000840.0000354243202361025050
NK1-Sr-204891.150.70818310.00000950.0000357243102359025040
NK1-Sr-205895.500.70820280.00000890.0000355239502324024670
NK1-Sr-206899.500.70817550.00000610.0000349244502374025170variegated
NK1-Sr-207905.180.70805550.00000540.0000348268802602027960variegated
NK1-Sr-208911.500.70812800.00000960.0000357253402460026120
NK1-Sr-209914.600.70814980.00000980.0000358249302419025670
NK1-Sr-210918.900.70815840.00000890.0000355247702404025500
NK1-Sr-210-1918.900.70815840.00000890.0000355247702404025500repeated
NK1-Sr-211923.960.70815710.00000570.0000349247902408025510
NK1-Sr-212926.500.70817600.00000570.0000349244402373025160
NK1-Sr-213930.480.70815800.00001050.0000360247702404025520
NK1-Sr-214935.620.70815440.00000820.0000354248402412025570
NK1-Sr-215940.780.70814820.00000680.0000351249602424025690
NK1-Sr-216944.500.70816840.00000750.0000352245802386025310
NK1-Sr-217949.000.70814850.00000750.0000352249502423025690
NK1-Sr-218956.250.70817490.00000720.0000352244602375025180
NK1-Sr-219961.850.70817230.00000980.0000358245102378025240
NK1-Sr-220965.500.70817330.00000880.0000355244902377025220
NK1-Sr-220-1965.500.70817440.00000850.0000354244702375025200repeated
NK1-Sr-221971.050.70816310.00000910.0000356246802395025410
NK1-Sr-223977.300.70816710.00000850.0000354246002388025330
NK1-Sr-224981.300.70813490.00000850.0000354252102447025970
NK1-Sr-225986.140.70816290.00000780.0000353246802396025410
NK1-Sr-226990.160.70819240.00000820.0000354241302343024860variegated