Arid
DOI10.1016/j.epsl.2018.08.018
Controls on subaerial erosion rates in Antarctica
Marrero, Shasta M.1; Hein, Andrew S.1; Naylor, Mark1; Attal, Mikael1; Shanks, Richard2; Winter, Kate3; Woodward, John3; Dunning, Stuart4; Westoby, Matthew3; Sugden, David1
通讯作者Marrero, Shasta M.
来源期刊EARTH AND PLANETARY SCIENCE LETTERS
ISSN0012-821X
EISSN1385-013X
出版年2018
卷号501页码:56-66
英文摘要

Erosion rates offer insight on landscape development and the relative importance of chemical and physical processes of weathering. Minimal chemical weathering makes Antarctica an ideal location in which to compare the physical weathering of carbonate rocks to other lithologies. Here we report the first cosmogenic nuclide-derived erosion rates for carbonate rocks in Antarctica. Carbonate samples collected in the southernmost Ellsworth Mountains reflect a (CI)-C-36 erosion rate of 0.22 +/- 0.02 mm/ka. This erosion rate is consistent with other reported Antarctic erosion rates, but is lower than (CI)-C-36 erosion rates derived from other arid regions in the world. These results are integrated with a continent-wide reanalysis of 28 cosmogenic nuclide erosion rate studies (>200 measurements), which comprise numerous rock types and multiple cosmogenic nuclides. By combining cosmogenic nuclide-derived erosion rates across studies, the larger trends provide insight into factors (e.g. lithology, glacial history, and availability of abrasive material) affecting subaerial erosion rates in Antarctica. Statistical analysis of the compiled data set shows differences based on lithology, with sandstone having the largest range of erosion rates. The compiled data also reveals higher erosion rates in areas with a large potential sediment supply, like the Dry Valleys. Samples collected from boulders yield lower erosion rates than those collected from bedrock, likely due to a combination of physical processes that affect boulders and bedrock differently, and glacial history, which can affect the apparent cosmogenic-nuclide derived erosion rate. (C) 2018 The Authors. Published by Elsevier B.V.


英文关键词erosion rate cosmogenic nuclides chlorine-36 lithology Antarctica
类型Article
语种英语
国家Scotland ; England
收录类别SCI-E
WOS记录号WOS:000447105000006
WOS关键词SURFACE EXPOSURE AGES ; NUCLIDE PRODUCTION-RATES ; NORTHERN VICTORIA LAND ; WEDDELL SEA EMBAYMENT ; DRY VALLEYS REGION ; ICE-SHEET ; COSMOGENIC NUCLIDES ; LANDSCAPE EVOLUTION ; CLIMATE-CHANGE ; SIRIUS GROUP
WOS类目Geochemistry & Geophysics
WOS研究方向Geochemistry & Geophysics
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/208610
作者单位1.Univ Edinburgh, Sch GeoSci, Drummond St, Edinburgh EH8 8XP, Midlothian, Scotland;
2.Scottish Univ Environm Res Ctr, E Kilbride, Lanark, Scotland;
3.Northumbria Univ, Fac Engn & Environm, Dept Geog & Environm Sci, Newcastle Upon Tyne, Tyne & Wear, England;
4.Newcastle Univ, Sch Geog Polit & Sociol, Dept Geog, Newcastle Upon Tyne, Tyne & Wear, England
推荐引用方式
GB/T 7714
Marrero, Shasta M.,Hein, Andrew S.,Naylor, Mark,et al. Controls on subaerial erosion rates in Antarctica[J],2018,501:56-66.
APA Marrero, Shasta M..,Hein, Andrew S..,Naylor, Mark.,Attal, Mikael.,Shanks, Richard.,...&Sugden, David.(2018).Controls on subaerial erosion rates in Antarctica.EARTH AND PLANETARY SCIENCE LETTERS,501,56-66.
MLA Marrero, Shasta M.,et al."Controls on subaerial erosion rates in Antarctica".EARTH AND PLANETARY SCIENCE LETTERS 501(2018):56-66.
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
[Marrero, Shasta M.]的文章
[Hein, Andrew S.]的文章
[Naylor, Mark]的文章
百度学术
百度学术中相似的文章
[Marrero, Shasta M.]的文章
[Hein, Andrew S.]的文章
[Naylor, Mark]的文章
必应学术
必应学术中相似的文章
[Marrero, Shasta M.]的文章
[Hein, Andrew S.]的文章
[Naylor, Mark]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。