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DOI | 10.1002/2017GL073599 |
First measurement of ice-bedrock interface of alpine glaciers by cosmic muon radiography | |
Nishiyama, R.1; Ariga, A.1; Ariga, T.1; Kaser, S.1; Lechmann, A.2; Mair, D.2; Scampoli, P.1,3; Vladymyrov, M.1; Ereditato, A.1; Schlunegger, F.2 | |
2017-06-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:12 |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland; Italy |
英文摘要 | The shape of the bedrock underneath alpine glaciers bears vital information on the erosional mechanism related to the flow of ice. So far, several geophysical exploration methods have been proposed to map the bedrock topography though with limited accuracy. Here we illustrate the first results from a technology, called cosmic ray muon radiography, newly applied in glacial geology to investigate the bedrock geometry beneath the Aletsch Glacier situated in the Central Swiss Alps. For this purpose we installed new cosmic muon detectors made of emulsion films at three sites along the Jungfrau railway tunnel and measured the shape of the bedrock under the uppermost part of Aletsch Glacier (Jungfraufirn). Our results constrain the continuation of the bedrock-ice interface up to a depth of 50 m below the surface, where the bedrock underneath the glacier strikes NE-SW and dips at 45 degrees +/- 5 degrees. This documents the first successful application of this technology to a glaciated environment. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000405854200043 |
WOS关键词 | TOPOGRAPHY ; NUCLEAR ; LIMITATIONS ; GRAVITY ; VALLEYS ; BASINS ; ORIGIN ; ALPS ; DOME ; PUY |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/26697 |
专题 | 气候变化 |
作者单位 | 1.Univ Bern, Albert Einstein Ctr Fundamental Phys, High Energy Phys Lab, Bern, Switzerland; 2.Univ Bern, Inst Geol Sci, Bern, Switzerland; 3.Univ Naples Federico II, Dept Phys E Pancini, Naples, Italy |
推荐引用方式 GB/T 7714 | Nishiyama, R.,Ariga, A.,Ariga, T.,et al. First measurement of ice-bedrock interface of alpine glaciers by cosmic muon radiography[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(12). |
APA | Nishiyama, R..,Ariga, A..,Ariga, T..,Kaser, S..,Lechmann, A..,...&Schlunegger, F..(2017).First measurement of ice-bedrock interface of alpine glaciers by cosmic muon radiography.GEOPHYSICAL RESEARCH LETTERS,44(12). |
MLA | Nishiyama, R.,et al."First measurement of ice-bedrock interface of alpine glaciers by cosmic muon radiography".GEOPHYSICAL RESEARCH LETTERS 44.12(2017). |
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