热解法用于礼村黄土-古土壤地层<sup>14</sup>C测年

余华贵; 祝一志; 程鹏; 刘永好; 王胜利; 鲜锋; 陈清敏; 刘钊; 周卫健

doi:10.3724/SP.J.1140.2009.01073

热解法用于礼村黄土-古土壤地层¹⁴C测年

余华贵^1,2,
祝一志¹,
程鹏^1,2,
刘永好³,
王胜利³,
鲜锋¹,
陈清敏^1,2,
刘钊^1,2,
周卫健^1,4

1 中国科学院地球环境研究所黄土与第四纪地质国家重点实验室, 西安 710075;
2 中国科学院研究生院, 北京 100049;
3 中国科学院上海应用物理研究所, 上海 201800;
4 中国科学院地球环境所与西安交大共建西安加速器质谱中心, 西安 710054

基金项目:

黄土与第四纪地质国家重点实验室开放基金项目(SKLLQG0617,SKLLQG07010)

国家自然科学基金项目(40773079606)

详细信息

作者简介:
余华贵(1979-),女,博士研究生,主要从事放射性同位素年代学方面的研究,E-mail:yuhuagui@hotmail.com

中图分类号: P597
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出版历程
- 收稿日期: 2008-09-09
- 修回日期: 2008-10-07

PYROLYSIS-COMBUSTION METHOD USED TO DO ¹⁴C DATING OF HOLOCENE LOESS SEQUENCE AT LICUN PROFILE

1 State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences, Xi'an 710075, China;
2 Graduate School, Chinese Academy of Sciences, Beijing 100049, China;
3 Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;
4 Xi'an AMS Center, Xi'an 710054, China

摘要

摘要: 采用简单的热解方法分离黄土-古土壤不同有机组分进行¹⁴C测年的探索,通过加热使黄土-古土壤有机质发生裂解,选择400℃作为试验温度,对陕西省岐山县礼村剖面黄土-古土壤粉末样品在400℃下挥发出的Py-V组分和残留下的Py-R组分分别进行¹⁴C (AMS)测年,并结合该剖面同层位黄土地层与考古文化层接触关系,认为礼村剖面受人类活动影响强烈的地层中,Py-V组分年龄能代表真实年龄;在未受人类活动影响自然沉积地层中,Py-R组分年龄能代表真实年龄。
- 热解法 /
- ¹⁴C测年 /
- Py-R组分 /
- Py-V组分 /
- 黄土-古土壤
Abstract: The onerous chemical extractions for soil organic matter (SOM) fractions do not always produce satisfactory ¹⁴C dates. In an effort to develop an alternative method, the pyrolysis-combustion technique was investigated to partition SOM into pyrolysis volative (Py-V) and pyrolysis residue (Py-R) at 400℃, and dated the two component parts separately by Accelerate Mass Spectrometry (AMS). Compared with the environmental archaeology sequence at the Licun Holocene profile, the Py-V fractions yielded ¹⁴C data more reasonable than the counterpart Py-R fractions in the culture sequence, but on the contrary, the Py-R fractions yield ¹⁴C data more convinced in the loess stratigraphic sequence. Zhouyuan loess was probably developed about 9 300 BP ago, and accumulated for 6 000 years.
- pyrolysis-combustion /
- radiocarbon dating /
- Py-V fractions /
- Py-R fractions

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参考文献(26)

[1]	周卫健, 周明富,海德J. 距今三万年来北庄村沉积序列的¹⁴C年代学[J].科学通报, 1989, 34:1096-1099.[ZHOU Weijian, ZHOU Mingfu, Head J.^{14 C chronology of Bei Zhuang Cun sedimentation sequence since 30000yr BP[J].Chinese Science Bulletin,1989, 34:1096-1099.]}
[2]	周卫建,安芷生.中国黄土高原¹⁴C年代学[C].//黄土·第四纪地质·全球变化(三). 北京:科学出版社,1992:38-43.[ZHOU Weijian, AN Zhisheng.¹⁴C chronology of loess plateau in China[C]//LIU Tungsheng, AN Zhisheng. Loess, Quaternary Geology and Global Change. Part Ⅲ.Beijing:Science Press, 1992 :38-43.]
[3]	ZHOU Weijian, AN Zhisheng, Head M J.Stratigraphic division of Holocene loess in China[J].Radiocarbon, 1994, 36(1):37-45.
[4]	Pessenda L C R, Gouveia S E, Aravena R.Radiocarbon dating of total soil organic matter and humin fraction and its comparison with ¹⁴C ages of fossil charcoal[J].Radiocarbon, 2001, 43(2B):595-601.
[5]	ZHOU Weijian, AN Zhisheng, LIN Benhai, et al. Chronology of the Baxie loess profile and the history of monsoon climates in China between 17000 and 6000 years BP[J].Radiocarbon, 1992, 34(3):818-825.
[6]	Lang A, Hatte C, Rousseau D D,et al. High-resolution chronologies for loess:comparing AMS ¹⁴C and optical dating results[J].Quaternary Science Reviews, 2003, 22(10-13):953-959.
[7]	刘嘉麒, 陈铁梅, 聂高众,等.渭南黄土剖面的年龄测定及十五万年来高分辨时间序列的建立[J].第四纪研究, 1994, 14(3):193-202. [LIU Jiaqi, CHEN Tiemei, NIE Gaozhong,et al. Dating and reconstuction of the high resolution time series in Weinan loess section of the last 150000 year[J].Quaternary Sciences, 1994, 14(3):193-202.]
[8]	Orlova L A, Zykina V S, Radiocarbon dating of buried Holocene soils in Siberia[J].Radiocarbon, 2002, 44(1):113-122.
[9]	Chichagova O A, Cherkinsky A E.Problems in radiocarbon dating of soils[J].Radiocarbon, 1993, 35(3):351-362.
[10]	Hormes A, Karlen W, Possnert G.Radiocarbon dating of palaeosol components in moraines in Lapland, northern Sweden[J].Quaternary Science Reviews, 2004, 23(18-19):2031-2043.
[11]	Molnar M, Joo K, Barczi A, et al.Dating of total soil organic matter used in kurgan studies[J].Radiocarbon, 2004, 46(1):413-419.
[12]	Leavitt S W, Follett R F, Kimble J M, et al. Radiocarbon and δ¹³C depth profiles of soil organic carbon in the U.S. Great Plains:A possible spatial record of paleoenvironment and paleovegetation[J].Quaternary International, 2007, 162-163:21-34.
[13]	沈承德, 易维熙, 孙彦敏,等.湖山森林土壤¹⁴C表观年龄及δ¹³C分布特征[J].第四纪研究, 2000, 20(4):335-344. [SHEN Chengde, YI Weixi, SUN Yanmin,et al. ¹⁴C apparent ages and δ¹³C distribution of forest soils in Dinghushan natural reserve[J].Quaternary Sciences, 2000, 20(4):335-344.]
[14]	Rethemeyer Janet, Kramer Chirstiane, Gleixner Gerd, et al.Complexity of soil organic matter:AMS ¹⁴C analysis of soil lipid fractions and individual compounds[J], Radicarbon, 2004, 46(1):465-473.
[15]	WANG Hong, Hackley Keith C, Panno Samuel V, et al.Pyrolysis-combustion ¹⁴C dating of soil organic matter[J].Quaternary Research, 2003, 60:348-355.
[16]	程鹏.晚第四纪沉积物¹⁴C年代学研究[D].西安:中科院研究生院-地球环境研究所博士学位论文,2008.[CHENG Peng.The ¹⁴C Chronological study on sediment of Late-Quaternary[D].Xi'an, 2008, Graduate School, Chinese Academy of Sciences &Institute of Earth Environment, CAS, PhD's degree thesis.]
[17]	余华贵.中国周原黄土¹⁴C年代学研究[D]. 西安:中科院研究生院-地球环境研究所硕士学位论文,2005.[YU Huagui.Radiocarbon chronology study of Zhouyuan loess in China[D].Xi'an, 2005, Graduate School, Chinese Academy of Sciences &Institute of Earth Environment, CAS, Master's degree thesis.]
[18]	李哲, 周昆叔,曾贻伟, 周原黄土磁化率与Fe³⁺/Fe²⁺+Fe³⁺及铁相对含量间的关系[J].海洋地质与第四纪地质, 1996, 16(4):105-112. [LI Zhe, ZHOU Kunshu,ZENG Yiwei. Relation between susceptibility and Fe³⁺/Fe²⁺+Fe³⁺ and relative contents of iron in Zhouyuan loess[J].Marine Geology and Quaternary Geology, 1996, 16(4):105-112.]
[19]	周昆叔.周原黄土及其与文化层的关系[J], 第四纪研究, 1995, 15(2):174-183. [ZOHU Kunshu.The relation between Zhouyuan Loess and archaeology culture[J].Quaternary Sciences, 1995, 15(2):174-183.]
[20]	周昆叔, 张广如.关中环境考古调查简报[C].//周昆叔, 巩启明.环境考古研究(第一辑), 北京:科学出版社,1991:44-46.[ZHOU Kunshu, ZHANG Guangru.The environmental archaeology report about Guanzhong areas[C], ZHOU Kunshu,GONG Qiming.Environmental Archaeology Research (Series 1), Beijing:Science Press,1991 :44-46.]
[21]	周卫健,张洁, 超灵敏小型回旋加速器质谱计¹⁴C测年的样品制备和制样系统[J].核技术, 2001, 24(增刊):237-243.[ZHOU Weijian, ZHANG Jie.The Sample preparation at AMS^{14 C dating[J].Nuclear Techniques,2001, 24(supplement):237-243.]}
[22]	CHEN Maobai, LI Deming,XU Senlin, Minicyclotron-based accelerator mass spectromentry and ¹⁴C measurement[J].Nucl. Instr. Meth.,(B), 2000, 172:193-200.
[23]	ZHOU Weijian, LU Xuefeng, WU Zhengkun, et al.New results on Xi'an-AMS and sample preparation systems at Xi'an-AMS center[J].Nucl. Instr. And Meth.,(B),2007, 262:135-142.
[24]	陈茂柏.上海超灵敏小型回旋加速器质谱计的研制[J].核技术, 2001, 24(增刊):1-10.[CHEN Maobai.Mini-cyclotron based Shanghai super-sensitive accelerator mass spectronmeter[J].Nuclear Techniques.,2001 , 24(supplement):1-10.]
[25]	卢雪峰.高精度AMS¹⁴C测年技术研究及其在全球变化中的应用[D].西安:中科院研究生院-地球环境研究所博士论文,2006.[LU Xuefeng.High precision AMS radiocarbon dating technique and its application to the global change study[D]. Xi'an:Graduate School, Chinese Academy of Sciences &Institute of Earth Environment, CAS, Ph D's degree thesis,2006.]
[26]	周昆叔.地层学的新纪元——环境考古地层学[C].//花粉分析与环境考古. 北京:学苑出版社,2002:263-264.[ZHOU Kunshu.The new start of stratigraphy-environmental archaeological stratigraphy[C]//Pollen Analysis and Environmental Archaeology.Beijing:Xueyuan Press,2002:263 -264.