IMHE OpenIR  > 山地表生过程与生态调控重点实验室
POSSIBLE FACTORS CAUSING OLDER RADIOCARBON AGE FOR BULK ORGANIC MATTER IN SEDIMENT FROM DAIHAI LAKE, NORTH CHINA
Wu, Yanhong1; Wang, Sumin2; Zhou, Liping3
Corresponding AuthorWu, YH (吴艳宏)
2011
Source PublicationRADIOCARBON
ISSN0033-8222
EISSN1945-5755
Volume53Issue:2Pages:359-366
SubtypeArticle
AbstractMany factors may influence the radiocarbon age results of lacustrine sediments, among which the hardwater effect is particularly important. Daihai Lake is a closed lake located in the semi-arid region of Inner Mongolia, China. High concentrations of HCO(3)(-) and CO(3)(2-) and high pH values in the lake water imply that there is a hardwater effect when using bulk lacustrine sediment samples for (14)C dating. To correct the apparent (14)C age, we present a pilot study based on a series of (14)C ages of lake surface sediment, lake water, submerged aquatic plant (Myriophyllum), fish bone (Cyprinus carpio), and surface soil samples from and around Daihai Lake. Assuming that the relationship between the (14)C/(12)C ratio of DIC and of atmospheric CO(2) was constant (at 0.816), the hardwater effect ages calculated for the past 8000 yr would have varied from 949 to 1788 yr. Together with the reservoir effect and soil organic matter input, the hardwater effect is a major factor causing changes in apparent age when using bulk organic matter for (14)C dating.
KeywordPrecision Bidecadal Calibration Time-scale Stable Isotopes Reservoir Ages Marine Chronology Atlantic Plateau Tibet Basin
WOS HeadingsScience & Technology ; Physical Sciences
WOS Subject ExtendedGeochemistry & Geophysics
Indexed BySCI
WOS KeywordPRECISION BIDECADAL CALIBRATION ; TIME-SCALE ; STABLE ISOTOPES ; RESERVOIR AGES ; MARINE ; CHRONOLOGY ; ATLANTIC ; PLATEAU ; TIBET ; BASIN
Language英语
Quartile3区
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000291093400012
Funding OrganizationChinese Academy of Sciences ; Chinese National Natural Science Foundation(90411017)
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/5527
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
2.Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
3.Peking Univ, Dept Geog, Lab Earth Surface Proc, Beijing 100871, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Wu, Yanhong,Wang, Sumin,Zhou, Liping. POSSIBLE FACTORS CAUSING OLDER RADIOCARBON AGE FOR BULK ORGANIC MATTER IN SEDIMENT FROM DAIHAI LAKE, NORTH CHINA[J]. RADIOCARBON,2011,53(2):359-366.
APA Wu, Yanhong,Wang, Sumin,&Zhou, Liping.(2011).POSSIBLE FACTORS CAUSING OLDER RADIOCARBON AGE FOR BULK ORGANIC MATTER IN SEDIMENT FROM DAIHAI LAKE, NORTH CHINA.RADIOCARBON,53(2),359-366.
MLA Wu, Yanhong,et al."POSSIBLE FACTORS CAUSING OLDER RADIOCARBON AGE FOR BULK ORGANIC MATTER IN SEDIMENT FROM DAIHAI LAKE, NORTH CHINA".RADIOCARBON 53.2(2011):359-366.
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