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科研机构
青藏高原研究所 [1]
地球环境研究所 [1]
内容类型
期刊论文 [2]
发表日期
2016 [2]
学科主题
地理学::自然地理学 [1]
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Mid-late Pleistocene glacial evolution in the Grove Mountains, East Antarctica, constraints from cosmogenic Be-10 surface exposure dating of glacial erratic cobbles
期刊论文
QUATERNARY SCIENCE REVIEWS, 2016, 卷号: 145, 期号: 2016, 页码: 71-81
作者:
Dong, Guocheng
;
Huang, Feixin
;
Yi, Chaolu
;
Liu, Xiaohan
;
Zhou, Weijian
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浏览/下载:25/0
  |  
提交时间:2018/10/26
Mount Harding
Grove Mountains
East Antarctic Ice Sheet
Cosmogenic Be-10 Exposure Dating
Blue-ice Moraine
Mid-late Pleistocene glacial evolution in the Grove Mountains, East Antarctica, constraints from cosmogenic Be-10 surface exposure dating of glacial erratic cobbles
期刊论文
QUATERNARY SCIENCE REVIEWS, 2016, 卷号: 145, 期号: 0, 页码: 71-81
作者:
Dong, GC (Dong, Guocheng)
;
Huang, FX (Huang, Feixin)
;
Caffee, MW (Caffee, Marc W.)
;
Huang, FX
;
Yi, CL (Yi, Chaolu)
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浏览/下载:23/0
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提交时间:2017/09/26
Glacial HisTories From The East Antarctic Ice Sheet (Eais) Provide Keys To UnderstAndIng Correlations Between The Eats And Global Climate. They Are Especially Helpful In The Assessment Of Global Sea Level Change
And As a Means Of Quantifying The Magnitude Of pAst Glacial Activity And The RAte At Which Ice Responded To climAte Change. Given The Significance Of Eais Glacial hisTories
It Is Imperative That More Glacial Chronologic Data For thIs Region Be Obtained
Especially For The Mid-to-lAte Pleistocene. We Report Cosmogenic Be-10 Surface Exposure DAtIng Results From Glacially Transported Cobbles Embedded In Blue-ice moraIne MAterial At Mount hardIng
The Grove Mountains
Eais. Forty Exotic Cobbles Sampled AlOng Two PrOfiles (a And b) On This Blue-ice MoraIne Present Apparent Exposure-ages RangIng From 7.2 To 542.2 Ka. We Explore This Scattered Dataset By UsIng PrIncipal compOnent Analysis (Pca) To Identify Statistically Significant Trends In The Data. We Identify a correlatiOn betWeen Exposure-age And Distance Of The Cobbles From Mount hardIng. In prOfile a
Cobbles Further From Mount HardIng Yield Older Exposure-ages Than Those That Are Relatively Close. In Profile b
Cobbles Closer To Mount HardIng Are Found To Have Relatively Older Exposure-ages. In Term Of Glacial hisTory We Suggest That The Direction Of Ice Flow Changed durIng The Period From Similar To 60 To 200 Ka
And That Multiple Glacial Fluctuations Occurred In The Mid-late Pleistocene. (c) 2016 Elsevier Ltd. All Rights Reserved.
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