MC-ICP-MS测定铀系定年标样的230Th年龄

王立胜, 马志邦, 程海, 段武辉, 肖举乐

王立胜, 马志邦, 程海, 段武辉, 肖举乐. MC-ICP-MS测定铀系定年标样的230Th年龄[J]. 质谱学报, 2016, 37(3): 262-272. DOI: 10.7538/zpxb.youxian.2016.0009
引用本文: 王立胜, 马志邦, 程海, 段武辉, 肖举乐. MC-ICP-MS测定铀系定年标样的230Th年龄[J]. 质谱学报, 2016, 37(3): 262-272. DOI: 10.7538/zpxb.youxian.2016.0009
WANG Li-sheng, MA Zhi-bang, CHENG Hai, DUAN Wu-hui, XIAO Ju-le. Determination of 230Th Dating Age of Uranium-Series Standard Samples by Multiple Collector Inductively Coupled Plasma Mass Spectrometry[J]. Journal of Chinese Mass Spectrometry Society, 2016, 37(3): 262-272. DOI: 10.7538/zpxb.youxian.2016.0009
Citation: WANG Li-sheng, MA Zhi-bang, CHENG Hai, DUAN Wu-hui, XIAO Ju-le. Determination of 230Th Dating Age of Uranium-Series Standard Samples by Multiple Collector Inductively Coupled Plasma Mass Spectrometry[J]. Journal of Chinese Mass Spectrometry Society, 2016, 37(3): 262-272. DOI: 10.7538/zpxb.youxian.2016.0009
王立胜, 马志邦, 程海, 段武辉, 肖举乐. MC-ICP-MS测定铀系定年标样的230Th年龄[J]. 质谱学报, 2016, 37(3): 262-272. CSTR: 32365.14.zpxb.youxian.2016.0009
引用本文: 王立胜, 马志邦, 程海, 段武辉, 肖举乐. MC-ICP-MS测定铀系定年标样的230Th年龄[J]. 质谱学报, 2016, 37(3): 262-272. CSTR: 32365.14.zpxb.youxian.2016.0009
WANG Li-sheng, MA Zhi-bang, CHENG Hai, DUAN Wu-hui, XIAO Ju-le. Determination of 230Th Dating Age of Uranium-Series Standard Samples by Multiple Collector Inductively Coupled Plasma Mass Spectrometry[J]. Journal of Chinese Mass Spectrometry Society, 2016, 37(3): 262-272. CSTR: 32365.14.zpxb.youxian.2016.0009
Citation: WANG Li-sheng, MA Zhi-bang, CHENG Hai, DUAN Wu-hui, XIAO Ju-le. Determination of 230Th Dating Age of Uranium-Series Standard Samples by Multiple Collector Inductively Coupled Plasma Mass Spectrometry[J]. Journal of Chinese Mass Spectrometry Society, 2016, 37(3): 262-272. CSTR: 32365.14.zpxb.youxian.2016.0009

MC-ICP-MS测定铀系定年标样的230Th年龄

Determination of 230Th Dating Age of Uranium-Series Standard Samples by Multiple Collector Inductively Coupled Plasma Mass Spectrometry

  • 摘要: 本研究利用Neptune Plus型多接收电感耦合等离子体质谱仪(MC-ICP-MS)测定了U和Th标准溶液的同位素比值及U系定年标样的230Th年龄。结果显示:CRM 112A和Harwell Uraninite-1(HU-1)的234U/238U原子比值分别为(52.860±0.042)×10-6δ234U=(-38.36±0.77)‰,n=17)和(54.911±0.007)×10-6δ 234U=(-1.04±0.13)‰,n=27),实验数据在2σ不确定范围内与国际同类实验室一致;NBS Th标准,0.6 pg 230Th测试精度优于3‰;5个碳酸盐标准样品76001、GBW04412、RKM-6、RKM-5和RKM-4的230Th年龄分别为(47520±220) y、(86880±340) y、(130 830±550) y、(129380±480) y和(197970±1590) y,与美国明尼苏达大学、西安交通大学同类实验室测定的数据具有良好的重复性。上述数据表明,本实验建立的MC-ICP-MS法230Th定年技术可应用于中晚更新世以来碳酸盐的U-Th定年与示踪研究。
    Abstract: Five Quaternary standard samples were dated, and isotope ratios of U and Th contained in standard solutions were measured by Neptune Plus multiple collector inductively coupled plasma mass spectrometry (MC-ICP-MS). The results show that the 234U/238U atomic ratios of CRM 112A and Harwell Uraninite-1 (HU-1) are (52.860±0.042)×10-6 (δ 234U=(-38.36±0.77)‰, n=17) and (54.911±0.007)×10-6 (δ 234U=(-1.04±0.13)‰, n=27), respectively, which are in excellent agreement with the data previously reported by other laboratories within 2σ error; samples of 0.6 pg 230Th (NBS Th standard) give the precisions less than 3‰; the ages of five carbonate standards are (47520±220) y, (86880±340) y, (130 830±550) y, (129 380±480) y and (197970±1590) y for 76001, GBW04412, RKM-6, RKM-5 and RKM-4, respectively. These data are in accordance with the replicates measurements in the laboratories of Minnesota University and Xi’an Jiaotong University within uncertainties. All errors herein quote at the 2σ level, and all samples above are performed in the Uranium-series chronology laboratory of Institute of Geology and Geophysics, Chinese Academy of Sciences. This approach can be applied to dating various materials since late-middle Pleistocene, materials, such as speleothems, corals, deep-sea sulfides and so on.
  • [1] WANG Y J, CHENG H, EDWARDS R L, et al. A high-resolution absolute-dated late pleistocene monsoon record from Hulu Cave, China[J]. Science, 2001, 294(5 550): 2345-2348.
    [2] CHENG H, EDWARDS R L, WANG Y J, et al. A penultimate glacial monsoon record from Hulu Cave and two-phase glacial terminations[J]. Geology, 2006, 34(3): 217-220.
    [3] CHENG H, FLEITMANN D, EDWARDS R L, et al. Timing and structure of the 8.2 kyr B.P. event inferred from δ18O records of stalagmites from China, Oman and Brazil[J]. Geology, 2009, 37(11): 1007-1010.
    [4] WANG Y J, CHENG H, EDWARDS R L, et al. The holocene Asian Monsoon: Links to solar changes and North Atlantic climate[J]. Science, 2005, 308(5 723): 854-857.
    [5] YUAN D X, CHENG H, EDWARDS R L, et al. Timing, duration, and translations of the last interglacial Asian Monsoon[J]. Science, 2004, 304(5 670): 575-578.
    [6] RASMUSSEN S O, ANDERSEN K K, SVENSSON A M, et al. A new Greenland ice core chronology for the last glacial termination[J]. Journal Geophysical Research, 2006, 111(D6): 907-923.
    [7] STUIVER M, GROOTES P M. GISP2 oxygen isotope ratios[J]. Quaternary Research, 2000, 53(3): 277-284.
    [8] IVANOVICH M, HARMON R S. Uranium series disequilibrium: Applications to environmental problems[M]. Oxford: Clarendon Press, 1982: 1-506.
    [9] MA Z B, WANG Z H, LIU J Q, et al.U-series chronology of sediments associated with Late Quaternary fluctuations, Balikun Lake, northwestern China[J]. Quaternary International, 2004, 121(1): 89-98.
    [10] PENG H X, MA Z B, HUANG W P, et al. 230Th/U chronology of a Paleolithic site at Xinglong Cave in the Three-Gorge region of south China[J]. Quaternary Geochronology, 2014, (24): 1-9.
    [11] EDWARDS R L, CHEN J H, WASSERBURG G J. 238U-234U-230Th-232Th systematics and the precise measurement of time over the past 500,000 years[J]. Earth and Planetary Science Letters, 1987, 81(87): 175-192.
    [12] EDWARDS R L, TAYLOR F W, WASSERBURG G J. Dating earthquakes with high precision thorium-230 ages of very young corals[J]. Earth and Planetary Science Letters, 1988, 90(4): 371-381.
    [13] LUO X Z, REHKÄMPER M, LEE D C, et al. High precision 230Th-232Th and 234U/238U measurements using energy-filtered ICP magnetic sector multiple collector mass spectrometry[J]. International Journal of Mass Spectrometry and Ion Processes, 1997, 171 (1): 105-117.
    [14] CHENG H, EDWARDS R L, SHEN C Z, et al. Improvements in 230Th dating, 230Th and 234U half-life values, and U-Th isotopic measurements by multi-collector inductively coupled plasma mass spectrometry[J]. Earth and Planetary Science Letters, 2013, (371/372): 82-91.
    [15] SHEN C C, LIN K, DUAN W H, et al. Testing the annual nature of speleothem banding[J]. Scientific Reports, 2013, 3(12): 95-103.
    [16] SHEN C C, EDWARDS R L, CHENG H, et al. Uranium and thorium isotopic and concentration measurements by magnetic sector inductively coupled plasma mass spectrometry[J]. Chemical Geology, 2002, 185(3): 165-178.
    [17] SHEN C C, WU C C, CHENG H, et al.High-precision and high-resolution carbonate 230Th dating by MC-ICP-MS with SEM protocols[J]. Geochimica et Cosmochimica Acta, 2012, 99(99): 71-86.
    [18] KU T L, IVANOVICH M, HARMON R S. Uranium-series disequilibrium: Applications to environmental problems[M]. Oxford: Clarendon Press, 1982: 497-506.
    [19] HARMON R S, KU T L, MATTHEWS R K, et al. Limits of U-series analysis: Phase I results of the Uranium-Series Intercom-parison project[J]. Geology, 1979, 7(8): 405-409.
    [20] 韩永志. 中华人民共和国标准物质目录[M]. 北京:中国计量出版社,2000:55.
    [21] XIA M, ZHANG C H, MA Z B. Results and discussion on Uranium-series comparison project in China[J]. Scientia Sinica (Series B), 1987, 30(2): 212-224.
    [22] IVANOVICH M, WARCHAL R M. Report on the second uranium-series intercomparison project workshop[M]. England: H. M. Stationery Office, 1981: 20.
    [23] JAFFEY A H, FLYNN K F, GLENDENIN L E, et al. Precision measurement of half-lives and specific of 235U and 238U[J]. Physical Review C, 1971, 4(5): 1889-1906.
    [24] CHENG H, EDWARDS R L, HOFF J, et al. The half-life of uranium-234 and thorium-230[J]. Chemical Geology, 2000, 169(1/2): 17-33.
    [25] RICHTER S, EYKENS R, K HN H, et al. New average values for the n(238U)/n(235U) isotope ratios of natural uranium standards[J]. International Journal of Mass Spectrometry, 2010, 295 (1/2): 94-97.
    [26] DELANGHE D, BARD E, HAMELIN B. New TIMS constraints on the uranium-238 and uranium-234 in seawaters from the main ocean basins and the Mediterranean Sea[J]. Marine Chemistry, 2002, 80(1): 79-93.
    [27] ROBINSON L F, HENDERSON G M, SLOWEY N C. U-Th dating of marine isotope stage 7 in Bahamas slope sediments[J]. Earth and Planetary Science Letters, 2002, 196(3/4): 175-187.
    [28] PIERRE D, DOUCELANCE R, BHALEB B, et al. Further investigations on optimized tail correction and high-precision measurement of uranium isotopic ratios using multi-collector ICP-MS[J]. Chemical Geology, 2003, 201(1/2): 141-160.
    [29] BENDER M L, TAYLOR F T, MATTHEWS R K. Helium-uranium dating of corals from Middle Pleistocene Barbados reef tracts[J]. Quaternary Research, 1973, 3(1): 142-146.
    [30] BENDER M L, FAIRBANKS R G, TAYLOR F W, et al. Uranium-series dating of the Pleistocene reef tracts of Barbados, West Indies[J]. Geological Society of America Bulletin, 1979, 90(6): 577-594.
    [31] FAIRBANKS R G, MATTHEWS R K. The marine oxygen isotope record in Pleistocene coral, Barbados, West Indies[J]. Quaternary Research, 1978, 10(2): 181-19.
    [32] BARD E, HAMELIN B, FAIRBANKS R G. U-Th ages obtained by mass spectrometry in corals from Barbados: Sea level during the past 130 000 years[J]. Nature, 1990, 346(6 283): 456-458.
    [33] 马志邦,夏明,张承蕙,等. Barbados岛珊瑚礁高精度铀系年龄及讨论[J]. 地质科学,1999,34(1): 116-122.MA Zhibang, XIA Ming,ZHANG Chenghui, et al. High precision dating and discussion of coral reefs from Barbados with U-series method[J]. Scientia Geologica Sinica, 1999, 34 (1): 116-122(in Chinese).
    [34] EDWARDS R L, CHEN J H, KU T L, et al. Precise timing of the last interglacial period from mass spectrometric determination of thorium-230 in corals[J]. Science, 1987, 236(4808): 1547-1553.
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  • 刊出日期:  2016-05-19

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