气候变化领域集成服务门户(CCPortal): Accounting for the marine reservoir effect in radiocarbon calibration

CCPortal

DOI	10.1016/j.quascirev.2019.02.013
	Accounting for the marine reservoir effect in radiocarbon calibration
	Alves E.Q.; Macario K.D.; Urrutia F.P.; Cardoso R.P.; Bronk Ramsey C.
发表日期	2019
ISSN	0277-3791
起始页码	129
结束页码	138
卷号	209
英文摘要	The radiocarbon dating method is supported by highly refined calibration data empirically obtained from environmental archives. Nevertheless, marine calibration remains problematic due to the spatiotemporally variable Marine Reservoir Effect (MRE). The currently accepted curve for radiocarbon calibration in the ocean is a global curve, partly derived by numerical modelling from its atmospheric counterpart. As such, this curve cannot account for the effects of local phenomena, strongly correlated with 14 C signatures in seawater (e.g., ocean dynamics and continental input). Although the radiocarbon community has suggested the use of regional calibration curves that would better represent the heterogeneous ocean reservoir, a reasonable method for their construction has not yet been proposed. We directly address this longstanding issue in radiocarbon research by exploring the output of a model for the temporal evolution of the MRE. The limitations of this model are inherited by our method, and this hinders the use of the regional curves derived here in many regions of the world ocean. Nevertheless, the approach described in this paper remains valid regardless of the chosen model and our preliminary results show that, with the future development of accurate and highly resolved models for the MRE, this method may be a promising alternative to the use of ΔR values in the process of marine calibration. © 2019 Elsevier Ltd
英文关键词	Calibration curves; Marine radiocarbon simulation; Marine reservoir effect; Radiocarbon
语种	英语
scopus关键词	Oceanography; Seawater effects; Calibration curves; Marine radiocarbon simulation; Marine reservoir effects; Radiocarbon; Radiocarbon calibration; Radiocarbon dating; Regional calibrations; Temporal evolution; Calibration; atmosphere-ocean coupling; calibration; marine environment; numerical model; radiocarbon dating; reservoir; seawater; simulation; temporal evolution
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151988
作者单位	Oxford Radiocarbon Accelerator Unit, University of Oxford, Dyson Perrins Building, South Parks Road, Oxford, OX1 3QY, United Kingdom; Laboratório de Radiocarbono, Universidade Federal Fluminense, Av. Gal. Milton Tavares de Souza, s/n, Niterói, RJ 24210-346, Brazil; Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), Liga Periférico - Insurgentes Sur 4903, Parques del Pedregal, Del. TlalpanCiudad de México C.P. 14010, Mexico; Laboratório de Radioecologia e Alterações Ambientais, Universidade Federal Fluminense, Av. Gal. Milton Tavares de Souza, s/n, Niterói, RJ 24210-346, Brazil
推荐引用方式 GB/T 7714	Alves E.Q.,Macario K.D.,Urrutia F.P.,et al. Accounting for the marine reservoir effect in radiocarbon calibration[J],2019,209.
APA	Alves E.Q.,Macario K.D.,Urrutia F.P.,Cardoso R.P.,&Bronk Ramsey C..(2019).Accounting for the marine reservoir effect in radiocarbon calibration.Quaternary Science Reviews,209.
MLA	Alves E.Q.,et al."Accounting for the marine reservoir effect in radiocarbon calibration".Quaternary Science Reviews 209(2019).