Terrestrial in Situ Cosmogenic Nuclides Burial Dating and Its Application in Geosciences
详细信息
- 责任者：Yuan Zhaode (State Key Laboratory of Earthquake Dynamics ; Institute of Geology ; China Earthquake Administration ; Beijing 100029 ; China) ; Chen Jie
- 刊名：Seismology and Geology
- 出版年：2011
- 卷期：33(2)
- 关键词：宇宙成因核素测年 ; cosmogenic nuclide dating
- 页码：p.480-489
- 图表：1 illus., 37 refs.
- 分类号：1300
- issnNo：ISSN0253-4967
- isbnNo：CN11-2192/P
摘要
Terrestrial in situ cosmogenic nuclides burial dating has a promising application in dating of Late Cenozoic detrital sediments, for example, cave sediments, fluvial sediments and moraine. This method relies on a pair of cosmic-ray-produced nuclides that are produced in the same rock or mineral target at a fixed ratio, but have different half-lives. Depth profile method is applied to fluvial sediments dating. There is a good application for isochron approach in till-paleosol sequences in North America.26Al-21Ne and 10Be-21Ne method has a great potential application in future for its larger dating time and less uncertainty than other methods.