气候变化领域集成服务门户(CCPortal): Spatial pattern of accumulation at taylor dome during marine isotope stage 4: stratigraphic constraints from taylor glacier

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DOI	10.5194/cp-15-1537-2019
	Spatial pattern of accumulation at taylor dome during marine isotope stage 4: stratigraphic constraints from taylor glacier
	Menking J.A.; Brook E.J.; Shackleton S.A.; Severinghaus J.P.; Dyonisius M.N.; Petrenko V.; McConnell J.R.; Rhodes R.H.; Bauska T.K.; Baggenstos D.; Marcott S.; Barker S.
发表日期	2019
ISSN	18149324
起始页码	1537
结束页码	1556
卷号	15 期号:4
英文摘要	New ice cores retrieved from the Taylor Glacier (Antarctica) blue ice area contain ice and air spanning the Marine Isotope Stage (MIS) 5-4 transition, a period of global cooling and ice sheet expansion. We determine chronologies for the ice and air bubbles in the new ice cores by visually matching variations in gas- and ice-phase tracers to preexisting ice core records. The chronologies reveal an ice age-gas age difference (Δage) approaching 10 ka during MIS 4, implying very low snow accumulation in the Taylor Glacier accumulation zone. A revised chronology for the analogous section of the Taylor Dome ice core (84 to 55 ka), located to the south of the Taylor Glacier accumulation zone, shows that Δage did not exceed 3 ka. The difference in Δage between the two records during MIS 4 is similar in magnitude but opposite in direction to what is observed at the Last Glacial Maximum. This relationship implies that a spatial gradient in snow accumulation existed across the Taylor Dome region during MIS 4 that was oriented in the opposite direction of the accumulation gradient during the Last Glacial Maximum. © Author(s) 2019.
语种	英语
scopus关键词	chronology; glacier; ice core; ice sheet; Last Glacial Maximum; marine isotope stage; snow accumulation; spatial analysis; tracer; Antarctica; East Antarctica; Taylor Dome; Taylor Glacier
来源期刊	Climate of the Past
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146788
作者单位	College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, United States; Scripps Institution of Oceanography, University of California San Diego, San Diego, CA 92037, United States; Department of Earth and Environmental Sciences, University of Rochester, Rochester, MN 14627, United States; Division of Hydrological Sciences, Desert Research Institute, Reno, NV 89512, United States; Department of Earth Sciences, University of Cambridge, Cambridge, CB2 3EQ, United Kingdom; British Antarctic Survey, High Cross, Madingley Road, Cambridge, CB3 0ET, United Kingdom; Climate and Environmental Physics, University of Bern, Bern, 3012, Switzerland; Department of Geoscience, University of Wisconsin-Madison, Madison, WI 53706, United States; School of Earth and Ocean Sciences, Cardiff University, Cardiff, CF10 3AT, United Kingdom
推荐引用方式 GB/T 7714	Menking J.A.,Brook E.J.,Shackleton S.A.,et al. Spatial pattern of accumulation at taylor dome during marine isotope stage 4: stratigraphic constraints from taylor glacier[J],2019,15(4).
APA	Menking J.A..,Brook E.J..,Shackleton S.A..,Severinghaus J.P..,Dyonisius M.N..,...&Barker S..(2019).Spatial pattern of accumulation at taylor dome during marine isotope stage 4: stratigraphic constraints from taylor glacier.Climate of the Past,15(4).
MLA	Menking J.A.,et al."Spatial pattern of accumulation at taylor dome during marine isotope stage 4: stratigraphic constraints from taylor glacier".Climate of the Past 15.4(2019).