关中地区2万年以来黄土序列中蜗牛化石及其有机质的
  <sup>14</sup>C-AMS测年初探

doi:10.11867/j.issn.1001-8166.2008.09.0959

地球科学进展 ›› 2008, Vol. 23 ›› Issue (9): 959 -964. doi: 10.11867/j.issn.1001-8166.2008.09.0959

关中地区2万年以来黄土序列中蜗牛化石及其有机质的 ¹⁴C-AMS测年初探

祝一志 ¹,余华贵 ^1,2,程鹏 ^1,2,卢雪峰 ^1,3,康志海 ¹,周卫健 ^1,3

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，陕西西安 710075；2.中国科学院研究生院，北京 100049；3.西安加速器质谱中心，陕西西安 710054

收稿日期:2008-01-09 修回日期:2008-07-07 出版日期:2008-09-10
通讯作者: 祝一志 E-mail:zhyz@loess.llqg.ac.cn
基金资助:
国家自然科学基金面上项目“陕西丹江上游地区1万年以来环境变迁和历史文化兴衰”（编号：40773079606）；中国科学院地球环境研究所知识创新工程领域前沿项目“5000年来气候突变对中国古文明交替影响”（编号：54LYQY0609909）；黄土与第四纪地质国家重点实验室开放基金项目“气候变迁对关中地区龙山文化、夏商朝代更迭的影响”（编号：SKLLQG07010）资助.

A Preliminary Study of Radiocarbon Dating of Soil Humin and Shells in the Loess Sequence from Guanzhong Area Since 20 ka BP Using ¹⁴C Accelerator Mass Spectrometry Technique

Zhu Yizhi ¹,Yu Huagui ^1,2,Cheng Peng ^1,2, Lu Xuefeng ^1,3,Kang Zhihai ¹,Zhou Weijian ^1,3

1.State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences, Xi'an 710075,China;2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China; 3.Xi'an AMS Center 710054,China

Received:2008-01-09 Revised:2008-07-07 Online:2008-09-10 Published:2008-09-10

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前人在黄土—古土壤地层的¹⁴C年代学研究中，探讨了不同测年物质的可靠性，但不同物质组分获得的年代差异较大，这是由于选用的样品不符合定年条件，所以选择可靠的样品组分和有效的前处理方法显得尤为重要。对关中地区2万年以来黄土序列中有机质、花粉浓缩物和蜗牛化石进行了AMS¹⁴C年代学研究。运用现生蜗牛壳体的AMS¹⁴C测定来校正化石蜗牛的年龄，结合剖面中孢粉浓缩物、土壤有机质的AMS¹⁴C年代学对比研究，发现蜗牛化石壳体的文石可以提供较可靠的年代数据，为¹⁴C测年的可靠性研究提供了一种可能的途径。

关键词: 关中黄土, 蜗牛化石, ¹⁴C加速器测年

Reliable radiocarbon dating of Loess-paleosol sequence is not easy, The discrepency of dating results occurred in the previous work because of different dating materials and the laoking of powerful pretreatment. Here, we tested the feasibility of dating terrestrial mollusks fossil shells from the Loess Plateau, calibrated by the modern snail shell. Then; we compare the calibrated fossil shell results with the datings of the soil humin fraction and concentrated pollen in order to evaluate the reliability of the dating terrestrial mollusks fossil shells. If the fossil shell contains only aragonite form and their shell structure is examined by using X-ray diffraction, we shall be able to achieve reliable dating. Our results indicate that terrestrial shells are potentially useful as dating material.

Key words: Loess in Guanzhong basin, Snail shell fossil, ¹⁴C-AMS dating.

中图分类号:

P597

[1] Head M J,Zhou Weijian,Zhou Mingfu. Evaluation of ¹⁴C ages of organic fractions of paleosols from Loess-Paleosol sequences near Xian,China[J]. Radiocarbon,1989,31（3）:680-696.

[2] Zhou Weijian,Zhou Mingfu,Head J. ¹⁴C Chronology of Beizhuangcun sedimentation sequence since 30000 years BP[J]. Chinese Science Bulletin,1990,35（7）:367-372.

[3] Zhou Weijian,An Zhisheng. ¹⁴C chronology of loess plateau in China[C]∥Liu Tungsheng,An Zhisheng,eds. Loess,Quaternary Geology and Global Change（Part III）. Beijing:Science Press,1992:38-43.[周卫健,安芷生.中国黄土高原¹⁴C年代学[C]∥刘东生,安芷生编.黄土·第四纪地质·全球变化（三）.北京：科学出版社,1992：38-43.]

[4] Zhou Weijian,Zhou Mingfu,Head J. ¹⁴C chronology of Bei Zhuang Cun sedimentation sequence since 30 000 aBP[J]. Chinese Science Bulletin,1989,34（14）:1 096-1 099.[周卫健,周明富,Head J. 距今3万年来北庄村沉积序列的¹⁴C年代学[J]. 科学通报,1989,34（14）:1 096-1 099.]

[5] Zhou Weijian,Head J. Discussion of reliability of organism from paleolsols and lacustrine deposits for ¹⁴C dating,Loess[C]∥Liu Dungsheng,ed. Quaternary Geology and Global Change（Part II）.Beijing:Science Press,1990:58-63.[周卫健,Head J.古土壤和湖相淤泥的有机质的¹⁴C测年可靠性[C]∥刘东生编.黄土·第四纪地质·全球变化（二）.北京：科学出版社,1990:58-63.]

[6] Zhou Weijian,Zhu Yizhi,Zhou Kunshu.Some question in radiocarbon dating,environmental archaeology research[C]∥Zhou Kunshu,Gong Qiming,eds.Environmental Archaeology Research（Series 1）.Beijing: Science Press,1991:211-217.[周卫健,祝一志,周昆叔.放射性碳测年中的若干问题[C]∥周昆叔,巩启明主编.环境考古研究（第一辑）.北京：科学出版社,1991:211-217.]

[7] Wang Hong,Hackley K C,Panno S V,et al. Pyrolysis-combustion ¹⁴C dating of soil organic matter[J]. Quatermary Research,2003,60:348-355.

[8] Head M J,Zhou Weijian,Jacobsen G,et al. The properties of humus material separated from paleosols in loess-paleosol sequences from the loess plateau in China[J]. Radiocarbon,1996,38（1）:46-47.

[9] 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）:2 031-2 043.

[10] Zhou Weijian,Zhou Jie,Xiao Jiayi,et al. Preliminary study on radiocarbon AMS dating of pollen[J]. Science in China（Series D）,1998,28（5）:453-458.[周卫健,周杰,萧家仪,等.花粉浓缩物的加速器¹⁴C年代测定初探[J]. 中国科学:D辑,1998,28（5）:453-458.]

[11] Zhou Weijian,An Zhisheng. Discussion on the reliability of ¹⁴C dating of pollen concetrates from loess-paleosol sequence by accelerator mass spectrometry[J]. Radiocarbon,1996,38（1）:132.

[12] Zhou Weijian,Donahua D,Jull A J T. Radiocarbon AMS dating of pollen concentrated from eolian sediments: Implications for monsoon climate change since the late Quaternary[J].Radiocarbon,1997,39（1）:19-26.

[13] Wu Naiqin,Lü Houyuan,Chen Deniu,et al. Late glaciation paleoevironment in Weinan,Shaanxi:Evidence based on snail fossils[J]. Quaternary Sciences,1995,（2）:139-149.[吴乃琴,吕厚远,陈德牛,等.陕西渭南晚冰期时的环境与气候—蜗牛化石的证据[J]. 第四纪研究,1995,（2）:139-149.]

[14] Li Fengjiang,Wu Naiqin,Rousseau D D. Preliminary study of mollusk fossils in the Qinan Miocene loess-soil sequence in western Chinese Loess Plateau[J]. Science in China（Series D）,2006,36（5）:438-444. [李丰江,吴乃琴,Rousseau D D.黄土高原秦安中新世黄土—古土壤序列的蜗牛化石初步研究[J]. 中国科学:D辑,2006,36（5）:438-444.]

[15] Liu Tungsheng,et al. Loess and Environment[M]. Beijing: Science Press,1985:141-175.[刘东生,等.黄土与环境[M]. 北京:科学出版社,1985:141-175.]

[16] Liu Zongxiu,Gu Zhaoyan,Wu Naiqin,et al. Diet control on carbon isotopic composition of land snail shell carbonate[J]. Chinese Science Bulletin,2006,51（20）:2 410-2 416.[刘宗秀,顾兆炎,吴乃琴,等.食物控制的陆生蜗牛碳同位素组成[J]. 科学通报,2006,51（20）:2 410-2 416.]

[17] Goodfriend G A. Radiocarbon age anomalies in shell carbonate of land snails from semi-arid areas[J]. Radiocarbon,1987,29（2）:159-167.

[18] Zhou Weijian,Head M J,Wang Fubao,et al. The reliability of AMS radiocarbon dating of shells from China[J]. Radiocarbon,1999,41（1）:17-24.

[19] Zhou Weijian,Zhang Jie. The sample preparation at AMS ¹⁴C dating[J]. Nuclear Techniaues,2001,24（suppl.）: 237-243.[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.]

[20] Zhou Weijian,An Zhisheng,Zhou Mingfu. A restudy of loess-soil sequence in China from the recently 30ka[C]∥Liu Jiaqi,Yuan Baoyin,eds. The Quaternary Geology and Evironment in China. Beijing:Ocean Press,1997:176-183.[周卫健,安芷生,周明富. 最近三万年中国黄土地层学的再研究[C]∥刘嘉麒,袁宝印主编.中国第四纪地质与环境.北京：海洋出版社,1997:176-183.]

[21] Kigishi K,Suzuki N,Shiraki M. Soil dating by fraction extraction of Humic acid[J].Radiocarbon,1980,22（3）:853-857.

[22] Zhou Weijian,Zhou Jie,Xiao Jiayi. Preliminary study on radiocarbon AMS dating of pollen[J]. Science in China（Series D）,1999,42（5）:524-530.

[23] Stuiver M,Polach H A. Discussion:Reporting of ¹⁴C data[J]. Radiocarbon,1977,19（3）:355-363.

[24] Cai Lianzhen. The various problem of radiocarbon dating study[C]∥Qiu Shihua ed. The Radiocarbon Study in China.Beijing:Science Press,1990.[蔡莲珍. ¹⁴C测定年代中各种问题的研究[C]∥仇士华主编.中国¹⁴C年代学研究.北京：科学出版社,1990.]

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摘要

A Preliminary Study of Radiocarbon Dating of Soil Humin and Shells in the Loess Sequence from Guanzhong Area Since 20 ka BP Using 14C Accelerator Mass Spectrometry Technique

A Preliminary Study of Radiocarbon Dating of Soil Humin and Shells in the Loess Sequence from Guanzhong Area Since 20 ka BP Using ¹⁴C Accelerator Mass Spectrometry Technique