Arid
DOI10.1002/jqs.1424
Glacier fluctuations in the southern Peruvian Andes during the late-glacial period, constrained with cosmogenic He-3
Bromley, Gordon R. M.1; Hall, Brenda L.1; Schaefer, Joerg M.2; Winckler, Gisela2; Todd, Claire E.3; Rademaker, Kurt M.1
通讯作者Bromley, Gordon R. M.
来源期刊JOURNAL OF QUATERNARY SCIENCE
ISSN0267-8179
EISSN1099-1417
出版年2011
卷号26期号:1页码:37-43
英文摘要

The occurrence of pronounced climate reversals during the last glacial termination has long been recognised in palaeoclimate records from both hemispheres and from high to low latitudes. Accurate constraint of both the timing and magnitude of events, such as the Younger Dryas and Antarctic Cold Reversal, is vital in order to test different hypotheses for the causes and propagation of abrupt climate change. However, in contrast to higher-latitude regions, well-dated records from the Tropics are rare and the structure of late-glacial tropical climate remains uncertain. As a step toward addressing this problem, we present an in situ cosmogenic He-3 surface exposure chronology from Nevado Coropuna, southern Peru, documenting a significant fluctuation of the ice margin during the late-glacial period. Ten tightly clustered ages from a pair of moraines located halfway between the modern glacier and the Last Glacial Maximum terminus range from 11.9 to 13.9 ka and give an arithmetic mean age of 12.8 +/- 0.7 ka (1 sigma). These data constitute direct evidence for a readvance, or prolonged stillstand, of glaciers in the arid Andes of southwestern Peru. Copyright (C) 2011 John Wiley & Sons, Ltd.


英文关键词late-glacial reversal last termination Tropics cosmogenic helium-3 glaciers
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000287124100006
WOS关键词ANTARCTIC COLD REVERSAL ; SURFACE EXPOSURE AGES ; YOUNGER DRYAS ; CORDILLERA BLANCA ; ICE-CORE ; PRODUCTION-RATES ; CLIMATE ; BE-10 ; MORAINES ; RADIOCARBON
WOS类目Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向Physical Geography ; Geology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/169402
作者单位1.Univ Maine, Dept Earth Sci, Climate Change Inst, Edward T Bryand Global Sci Ctr, Orono, ME 04469 USA;
2.Columbia Univ, Lamont Doherty Earth Observ, Dept Earth & Environm Sci, Palisades, NY USA;
3.Pacific Lutheran Univ, Dept Geol Sci, Rieke Sci Ctr, Tacoma, WA 98447 USA
推荐引用方式
GB/T 7714
Bromley, Gordon R. M.,Hall, Brenda L.,Schaefer, Joerg M.,et al. Glacier fluctuations in the southern Peruvian Andes during the late-glacial period, constrained with cosmogenic He-3[J],2011,26(1):37-43.
APA Bromley, Gordon R. M.,Hall, Brenda L.,Schaefer, Joerg M.,Winckler, Gisela,Todd, Claire E.,&Rademaker, Kurt M..(2011).Glacier fluctuations in the southern Peruvian Andes during the late-glacial period, constrained with cosmogenic He-3.JOURNAL OF QUATERNARY SCIENCE,26(1),37-43.
MLA Bromley, Gordon R. M.,et al."Glacier fluctuations in the southern Peruvian Andes during the late-glacial period, constrained with cosmogenic He-3".JOURNAL OF QUATERNARY SCIENCE 26.1(2011):37-43.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Bromley, Gordon R. M.]的文章
[Hall, Brenda L.]的文章
[Schaefer, Joerg M.]的文章
百度学术
百度学术中相似的文章
[Bromley, Gordon R. M.]的文章
[Hall, Brenda L.]的文章
[Schaefer, Joerg M.]的文章
必应学术
必应学术中相似的文章
[Bromley, Gordon R. M.]的文章
[Hall, Brenda L.]的文章
[Schaefer, Joerg M.]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。