DOI: 10.1016/j.quascirev.2014.08.017
Scopus记录号: 2-s2.0-85027924505
论文题名: Assessing the differences between the IntCal and Greenland ice-core time scales for the last 14,000 years via the common cosmogenic radionuclide variations
作者: Muscheler R. ; Adolphi F. ; Knudsen M.F.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2014
卷: 106 起始页码: 81
结束页码: 87
语种: 英语
英文关键词: 10Be
; 14C
; Cosmic rays
; Ice cores
; Intcal13
; Time scales
Scopus关键词: Cosmic rays
; Cosmology
; Earth atmosphere
; Forestry
; Radioisotopes
; Time measurement
; <sup>14</sup>C
; Cosmogenic radionuclides
; Ice core
; Intcal13
; Short-term variations
; Synchronous variation
; Time-scales
; Tree-ring chronologies
; Ice
; cosmic ray
; cosmogenic radionuclide
; Holocene
; ice core
; radiocarbon dating
; timescale
; tree ring
; uncertainty analysis
; Atmosphere
; Geochemistry
; Space (Cosmic)
; Time
; Arctic
; Greenland
英文摘要: Variations in galactic cosmic rays reaching the Earth's atmosphere produce globally synchronous variations in the production rates of cosmogenic radionuclides. In consequence, they leave their imprint in tree-ring 14C and ice-core 10Be records. By identifying this signal and correcting for the known geochemical influences on the radionuclides, it is possible to compare and synchronize the tree-ring chronology and the Greenland ice-core time scale. Here, we compare the IntCal13 and the GICC05 time scales for the last 14,000 years via identification and synchronization of the common short-term variations in the ice-core 10Be and tree-ring 14C records most likely induced by variations in the solar modulation of galactic cosmic rays. We conclude that systematic time-scale differences have to be accounted for if ice-core and 14C-dated records are compared on decadal time scales. These are mostly within the uncertainties of the time scales and the method proposed here. However, for large parts of the mid to late Holocene (i.e. after 7000yrsBP) the best agreement between ice-core 10Be and tree-ring 14C records is obtained for time shifts outside the stated errors of the respective time scales. A transfer function is proposed that can be applied to synchronize the GICC05 ice-core time scale to the radiocarbon time scale. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60096
Appears in Collections: 过去全球变化的重建
There are no files associated with this item.
作者单位: Department of Geology - Quaternary Sciences, Lund University, Sweden; Department of Geoscience, Aarhus University, Aarhus, Denmark
Recommended Citation:
Muscheler R.,Adolphi F.,Knudsen M.F.. Assessing the differences between the IntCal and Greenland ice-core time scales for the last 14,000 years via the common cosmogenic radionuclide variations[J]. Quaternary Science Reviews,2014-01-01,106