Unify the exposure and the burial age calculating methods by in situ produced cosmogenic nuclides

doi:10.18654/1000-0569/2021.05.16

IEECAS OpenIR > 加速器质谱中心

	Unify the exposure and the burial age calculating methods by in situ produced cosmogenic nuclides
	Huang FeiXin 1; Cheng Yang 1; Li Yan 1; Li GuangWei 2; Dong GuoCheng 3,4; Liang Xia 5
通讯作者	Huang FeiXin(huangfeixin@cmgh.cn)
	2021-05-01
发表期刊	ACTA PETROLOGICA SINICA
ISSN	1000-0569
卷号	37 期号:5 页码:1611-1618
摘要	The exposure and burial ages were calculated using in situ produced cosmogenic nuclides by different methods. In fact, both exposure and burial processes involve production and reduction of cosmogenic nuclides, thus the nuclide concentration calculating methods have similarities in principle. As far as the depth from earth surface of a sample in its exposure or burial history is considered, erosion decreases the depth of the sample, while burial increases the depth, which is just an opposite process. The produce rates of in situ produced cosmogenic nuclides are correlated with the depth from the earth surface in the form of exponential function. According to the calculating principle of the relationship among in situ produced cosmogenic nuclide concentration, exposure time and erosion rate, it is deduced that the constant burial rate (beta) can be regarded as negative constant erosion rate (-epsilon) in calculating the sample concentration variation with time in the process of burial, taking the current produce rate of the sample as the standard. Thus, the equation for calculating exposure age and burial age is unified. In the case of non -uniform burial rate, the burial rate can still be regarded as the negative erosion rate by derivative calculation. On the basis that burial rate and erosion rate are denoted by the same parameter, and the burial rate can be regarded as the negative erosion rate, the calculation equation of nuclide concentration of sample under different burial (erosion) modes is deduced. The burial (exposure) age of samples with complex evolution processes can be calculated according to different burial (erosion) modes theoretically.
关键词	Cosmogenic nuclide Exposure age Burial age Calculating method Unify
DOI	10.18654/1000-0569/2021.05.16
关键词[WOS]	PRODUCTION-RATES ; EROSION ; BE-10 ; RADIONUCLIDES ; MUONS ; RIVER
收录类别	SCI ; SCI
语种	英语
WOS研究方向	Geology
WOS类目	Geology
WOS记录号	WOS:000664449300016
出版者	SCIENCE PRESS
引用统计
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/16808
专题	加速器质谱中心
通讯作者	Huang FeiXin
作者单位	1.China Met Geol Bur, Inst Mineral Resources Res, Beijing 101300, Peoples R China 2.Nanjing Univ, Sch Earth Sci & Engn, Nanjing 210023, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, Xian 710061, Peoples R China 4.Xian Accelerator Mass Spectrometry Ctr, Xian 710061, Peoples R China 5.Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Huang FeiXin,Cheng Yang,Li Yan,et al. Unify the exposure and the burial age calculating methods by in situ produced cosmogenic nuclides[J]. ACTA PETROLOGICA SINICA,2021,37(5):1611-1618.
APA	Huang FeiXin,Cheng Yang,Li Yan,Li GuangWei,Dong GuoCheng,&Liang Xia.(2021).Unify the exposure and the burial age calculating methods by in situ produced cosmogenic nuclides.ACTA PETROLOGICA SINICA,37(5),1611-1618.
MLA	Huang FeiXin,et al."Unify the exposure and the burial age calculating methods by in situ produced cosmogenic nuclides".ACTA PETROLOGICA SINICA 37.5(2021):1611-1618.