DOI: 10.1016/j.quascirev.2016.09.012
论文题名: Global ice volume during MIS 3 inferred from a sea-level analysis of sedimentary core records in the Yellow River Delta
作者: Pico T. ; Mitrovica J.X. ; Ferrier K.L. ; Braun J.
刊名: Quaternary Science Reviews
出版年: 2016
卷: 152 起始页码: 72
结束页码: 79
语种: 英语
英文关键词: Glacio isostatic adjustment
; MIS 3
; Sea level
; Sediment
; Yellow River Delta
Scopus关键词: Glacial geology
; Ice
; Sedimentology
; Sediments
; Uncertainty analysis
; Glacial Isostatic Adjustments
; Glacio isostatic adjustment
; Global mean sea levels
; Last Glacial Maximum
; Marine isotope stages
; Sediment redistribution
; Self-consistent treatment
; Yellow River delta
; Sea level
英文摘要: Estimates of global ice volume during the glacial phase of the most recent ice age cycle are characterized by significant uncertainty, reflecting the relative paucity of geological constraints on sea level relevant to this time interval. For example, during the middle stages of Marine Isotope Stage 3, published estimates of peak global mean sea level (GMSL) relative to the present range from −25 m to −87 m. The large uncertainty in GMSL at MIS 3 has significant implications for estimates of the rate of ice growth in the period leading to the Last Glacial Maximum (∼26 ka). We refine estimates of global ice volume during MIS 3 by employing sediment cores in the Bohai and Yellow Sea that record a migration of the paleoshoreline at ∼50–37 ka through a transition from marine to brackish conditions. In particular, we correct relative sea level at these sites for contamination due to glacial isostatic adjustment using a sea-level calculation that includes a gravitationally self-consistent treatment of sediment redistribution and compaction, and estimate a peak global mean sea level of −38 ± 7 m during the interval 50–37 ka. With suitable sedimentary core records, the approach described herein can be extended to refine existing constraints on global ice volume across the entire glacial period. © 2016 Elsevier Ltd 资助项目: Pico, T.GFZ Deutsches GeoForschungZentrum, Germany
; 电子邮件: tpico@g.harvard.edu
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59399
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 Earth and Planetary Sciences, Harvard University, Cambridge, United States; School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, United States; ISTerre, Université Grenoble Alpes and CNRS, 38041 Grenoble Cedex 9, France
Recommended Citation:
Pico T.,Mitrovica J.X.,Ferrier K.L.,et al. Global ice volume during MIS 3 inferred from a sea-level analysis of sedimentary core records in the Yellow River Delta[J]. Quaternary Science Reviews,2016-01-01,152