| Atmospheric C-14/C-12 changes during the last glacial period from Hulu Cave | |
| Cheng, Hai1,2; Edwards, R. Lawrence2; Southon, John3; Matsumoto, Katsumi2; Feinberg, Joshua M.2,4; Sinha, Ashish5; Zhou, Weijian6; Li, Hanying1; Li, Xianglei1; Xu, Yao1; Chen, Shitao7; Tan, Ming8; Wang, Quan7; Wang, Yongjin7; Ning, Youfeng1 | |
| 通讯作者 | Cheng, Hai(cheng021@xjtu.edu.cn) ; Edwards, R. Lawrence(edwar001@umn.edu) |
| 2018-12-14 | |
| 发表期刊 | SCIENCE
 |
| ISSN | 0036-8075 |
| 卷号 | 362期号:6420页码:1293-+ |
| 摘要 | Paired measurements of C-14/C-12 and Th-230 ages from two Hulu Cave stalagmites complete a precise record of atmospheric C-14 covering the full range of the C-14 dating method (similar to 54,000 years). Over the last glacial period, atmospheric C-14/C-12 ranges from values similar to modern values to values 1.70 times higher (42,000 to 39,000 years ago). The latter correspond to C-14 ages 5200 years less than calibrated ages and correlate with the Laschamp geomagnetic excursion followed by Heinrich Stadial 4. Millennial-scale variations are largely attributable to Earth's magnetic field changes and in part to climate-related changes in the oceanic carbon cycle. A progressive shift to lower C-14/C-12 values between 25,000 and 11,000 years ago is likely related, in part, to progressively increasing ocean ventilation rates. |
| DOI | 10.1126/science.aau0747 |
| 关键词[WOS] | RADIOCARBON CONSTRAINTS ; C-14 CALIBRATION ; ORGANIC-MATTER ; CARBON-CYCLE ; MONO LAKE ; RECORD ; AGE ; ICE ; LASCHAMP ; ATLANTIC |
| 收录类别 | SCI ; SCI |
| 语种 | 英语 |
| 资助项目 | China NSFC[41888101] ; China NSFC[41731174] ; China NSFC[4157020432] ; China NSFC[41561144003] ; U.S. NSF[0502535] ; U.S. NSF[1103404] ; U.S. NSF[0823554] ; U.S. NSF[1003690] ; U.S. NSF[1137693] ; U.S. NSF[1337693] ; U.S. NSF[1702816] ; Comer Science and Education Foundation |
| WOS研究方向 | Science & Technology - Other Topics |
| 项目资助者 | China NSFC ; U.S. NSF ; Comer Science and Education Foundation |
| WOS类目 | Multidisciplinary Sciences |
| WOS记录号 | WOS:000452994400053 |
| 出版者 | AMER ASSOC ADVANCEMENT SCIENCE |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/14520 |
| 专题 | 加速器质谱中心 |
| 通讯作者 | Cheng, Hai; Edwards, R. Lawrence |
| 作者单位 | 1.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian, Shaanxi, Peoples R China 2.Univ Minnesota, Dept Earth Sci, Minneapolis, MN 55455 USA 3.Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA USA 4.Univ Minnesota, Inst Rock Magnetism, Minneapolis, MN USA 5.Calif State Univ Dominguez Hills, Dept Earth Sci, Carson, CA 90747 USA 6.Chinese Acad Sci, Inst Earth Environm, Xian, Shaanxi, Peoples R China 7.Nanjing Normal Univ, Coll Geog Sci, Nanjing, Jiangsu, Peoples R China 8.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cheng, Hai,Edwards, R. Lawrence,Southon, John,et al. Atmospheric C-14/C-12 changes during the last glacial period from Hulu Cave[J]. SCIENCE,2018,362(6420):1293-+. |
| APA | Cheng, Hai.,Edwards, R. Lawrence.,Southon, John.,Matsumoto, Katsumi.,Feinberg, Joshua M..,...&Ning, Youfeng.(2018).Atmospheric C-14/C-12 changes during the last glacial period from Hulu Cave.SCIENCE,362(6420),1293-+. |
| MLA | Cheng, Hai,et al."Atmospheric C-14/C-12 changes during the last glacial period from Hulu Cave".SCIENCE 362.6420(2018):1293-+. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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