DOI: 10.5194/cp-8-1031-2012
Scopus记录号: 2-s2.0-84862201425
论文题名: Volcanic synchronisation between the EPICA Dome C and Vostok ice cores (Antarctica) 0-145 kyr BP
作者: Parrenin F. ; Petit J.-R. ; Masson-Delmotte V. ; Wolff E. ; Basile-Doelsch I. ; Jouzel J. ; Lipenkov V. ; Rasmussen S.O. ; Schwander J. ; Severi M. ; Udisti R. ; Veres D. ; Vinther B.M.
刊名: Climate of the Past
ISSN: 18149324
出版年: 2012
卷: 8, 期: 3 起始页码: 1031
结束页码: 1045
语种: 英语
Scopus关键词: accumulation
; dating method
; electrical conductivity
; geochronology
; glaciology
; ice core
; ice thickness
; isotopic analysis
; paleoclimate
; sulfate
; synchrony
; volcanic eruption
; Antarctica
; Dome Concordia
; East Antarctica
; Lake Vostok
; Vostok Station
英文摘要: This study aims at refining the synchronisation between the EPICA Dome C (EDC) and Vostok ice cores in the time interval 0-145 kyr BP by using the volcanic signatures. 102 common volcanic events were identified by using continuous electrical conductivity (ECM), di-electrical profiling (DEP) and sulfate measurements while trying to minimize the distortion of the glaciological chronologies. This is an update and a continuation of previous works performed over the 0-45 kyr interval that provided 56 tie points to the ice core chronologies (Udisti et al., 2004). This synchronisation will serve to establish Antarctic Ice Core Chronology 2012, the next synchronised Antarctic dating. A change of slope in the EDC-depth/Vostok-depth diagram is probably related to a change of accumulation regime as well as to a change of ice thickness upstream of the Lake Vostok, but we did not invoke any significant temporal change of surface accumulation at EDC relative to Vostok. No significant phase difference is detected between the EDC and Vostok isotopic records, but depth shifts between the Vostok 3G and 5G ice cores prevent from looking at this problem accurately. Three possible candidates for the Toba volcanic super-eruption 73 kyr ago are suggested in the Vostok and EDC volcanic records. Neither the ECM, DEP nor the sulfate fingerprints for these 3 events are significantly larger than many others in the records. © 2012 Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/49576
Appears in Collections: 气候变化与战略
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Recommended Citation:
Parrenin F.,Petit J.-R.,Masson-Delmotte V.,et al. Volcanic synchronisation between the EPICA Dome C and Vostok ice cores (Antarctica) 0-145 kyr BP[J]. Climate of the Past,2012-01-01,8(3)