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DOI | 10.1130/G45146.1 |
Ice cover as a control on the morphodynamics and stratigraphy of Arctic deltas | |
Lim, YeJin1; Levy, Joseph S.2,3; Goudge, Timothy A.1; Kim, Wonsuck1 | |
发表日期 | 2019 |
ISSN | 0091-7613 |
EISSN | 1943-2682 |
卷号 | 47期号:5页码:399-402 |
英文摘要 | Deltas are dynamic systems that can provide important information on past climate conditions. Arctic deltas have the potential to preserve information about climate in one of the most temperature-sensitive regions of the Earth. We present experimental results assessing the effects of ice cover on delta morphodynamics to identify signatures of ice-cover presence during deposition. Ice cover drives spatial variation in sediment transport on the subaqueous delta clinoform through sub-ice channels, which leads to the development of (1) extended delta lobes built by elongated, subaqueous sediment wedges and (2) bathymetry with increasing topographic roughness from the shoreline to a depth approximate to bottom-fast ice thickness. These unique seascape and stratigraphic features record past climate conditions, and can serve as indicators of climate change on vulnerable Arctic coasts. |
WOS研究方向 | Geology |
来源期刊 | GEOLOGY |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/97335 |
作者单位 | 1.Univ Texas Austin, Jackson Sch Geosci, Dept Geol Sci, Austin, TX 78712 USA; 2.Univ Texas Austin, Jackson Sch Geosci, Univ Texas Inst Geophys, Austin, TX 78758 USA; 3.Colgate Univ, Dept Geol, 13 Oak Dr, Hamilton, NY 13346 USA |
推荐引用方式 GB/T 7714 | Lim, YeJin,Levy, Joseph S.,Goudge, Timothy A.,et al. Ice cover as a control on the morphodynamics and stratigraphy of Arctic deltas[J],2019,47(5):399-402. |
APA | Lim, YeJin,Levy, Joseph S.,Goudge, Timothy A.,&Kim, Wonsuck.(2019).Ice cover as a control on the morphodynamics and stratigraphy of Arctic deltas.GEOLOGY,47(5),399-402. |
MLA | Lim, YeJin,et al."Ice cover as a control on the morphodynamics and stratigraphy of Arctic deltas".GEOLOGY 47.5(2019):399-402. |
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