Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1613144114 |
Large C-14 excursion in 5480 BC indicates an abnormal sun in the mid-Holocene | |
Miyake, Fusa1; Jull, A. J. Timothy2,3; Panyushkina, Irina P.4; Wacker, Lukas5; Salzer, Matthew4; Baisan, Christopher H.4; Lange, Todd3; Cruz, Richard3; Masuda, Kimiaki1; Nakamura, Toshio1 | |
2017-01-31 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
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ISSN | 0027-8424 |
出版年 | 2017 |
卷号 | 114期号:5页码:881-884 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan; USA; Switzerland |
英文摘要 | Radiocarbon content in tree rings can be an excellent proxy of the past incoming cosmic ray intensities to Earth. Although such past cosmic ray variations have been studied by measurements of C-14 contents in tree rings with >= 10-y time resolution for the Holocene, there are few annual C-14 data. There is a little understanding about annual C-14 variations in the past, with the exception of a few periods including the AD 774-775 C-14 excursion where annual measurements have been performed. Here, we report the result of C-14 measurements using the bristlecone pine tree rings for the period from 5490 BC to 5411 BC with 1- to 2-y resolution, and a finding of an extraordinarily large C-14 increase (20 parts per thousand) from 5481 BC to 5471 BC (the 5480 BC event). The C-14 increase rate of this event is much larger than that of the normal grand solar minima. We propose the possible causes of this event are an unknown phase of grand solar minimum, or a combination of successive solar proton events and a normal grand solar minimum. |
英文关键词 | radiocarbon cosmic ray event solar proton event grand solar minimum tree rings |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000393196300049 |
WOS关键词 | RADIOCARBON AGE CALIBRATION ; TREE-RINGS ; SOLAR-ACTIVITY ; BRISTLECONE-PINE ; GRAND MINIMA ; TIME-SCALE ; AD 774-775 ; TERRESTRIAL ; EVENT ; INCREASE |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204833 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Nagoya Univ, Inst Space Earth Environm Res, Nagoya, Aichi 4648601, Japan; 2.Univ Arizona, Dept Geosci, Tucson, AZ 85721 USA; 3.Univ Arizona, Arizona Accelerator Mass Spectrometry Lab, Tucson, AZ 85721 USA; 4.Univ Arizona, Tree Ring Res Lab, Tucson, AZ 85721 USA; 5.ETH, Lab Ion Beam Phys, CH-8093 Zurich, Switzerland |
推荐引用方式 GB/T 7714 | Miyake, Fusa,Jull, A. J. Timothy,Panyushkina, Irina P.,et al. Large C-14 excursion in 5480 BC indicates an abnormal sun in the mid-Holocene[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2017,114(5):881-884. |
APA | Miyake, Fusa.,Jull, A. J. Timothy.,Panyushkina, Irina P..,Wacker, Lukas.,Salzer, Matthew.,...&Nakamura, Toshio.(2017).Large C-14 excursion in 5480 BC indicates an abnormal sun in the mid-Holocene.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,114(5),881-884. |
MLA | Miyake, Fusa,et al."Large C-14 excursion in 5480 BC indicates an abnormal sun in the mid-Holocene".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 114.5(2017):881-884. |
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