Climate Change Data Portal
| DOI | 10.1016/j.quascirev.2020.106204 |
| The impact of icebergs of sub-Antarctic origin on Southern Ocean ice-rafted debris distributions | |
| Bigg G.R. | |
| 发表日期 | 2020 |
| ISSN | 0277-3791 |
| 卷号 | 232 |
| 英文摘要 | The presence of widespread terrigenous material of an ice-rafted origin in Quaternary sediments of the Southern Ocean has been recognized for almost 150 years. Normally this material has been ascribed to deposits from icebergs of continental Antarctic origin. However, during Quaternary glaciations there have been periods of extensive land ice across the sub-Antarctic, on both islands scattered around most of the circumpolar extent of the Southern Ocean, as well as in Patagonia, so providing alternative sources for debris-carrying icebergs. Here a relatively high resolution ocean and iceberg model is used to study the potential distribution of ice-rafted debris (IRD) from the range of past ice sources around the Southern Ocean. It is shown that IRD found in marine cores of the Southern Ocean is most likely to have derived from the Antarctic continent in some regions, particularly of the South Atlantic, but that for extensive regions of the Southern Ocean sub-Antarctic sources of IRD, rather than the continent itself, are more likely. This is particularly true equatorward of 55oS, away from the core continental iceberg outflow from the Weddell gyre. It is argued that the glaciated sub-Antarctic cannot be neglected in explaining past IRD records in the Southern Ocean. This has implications not just for reconstructing the history of glaciation in the sub-Antarctic, but also for understanding past variation in the upper ocean circulation within the Quaternary Southern Ocean. © 2020 Elsevier Ltd |
| 英文关键词 | Ice-rafted debris; Modelling; Paleoceanography; Past glaciation; Quaternary; Southern ocean |
| 语种 | 英语 |
| scopus关键词 | Debris; Glacial geology; Models; Sea ice; Ice rafted debris; Paleoceanography; Past glaciation; Quaternary; Southern ocean; Oceanography; environmental modeling; glaciation; ice-rafted debris; iceberg; marine sediment; oceanic circulation; paleoceanography; Quaternary; spatial distribution; upper ocean; Atlantic Ocean; Atlantic Ocean (South); Patagonia; Southern Ocean |
| 来源期刊 | Quaternary Science Reviews
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/151558 |
| 作者单位 | Department of Geography, University of Sheffield, Winter Street, Sheffield, S10 2TN, United Kingdom |
| 推荐引用方式 GB/T 7714 | Bigg G.R.. The impact of icebergs of sub-Antarctic origin on Southern Ocean ice-rafted debris distributions[J],2020,232. |
| APA | Bigg G.R..(2020).The impact of icebergs of sub-Antarctic origin on Southern Ocean ice-rafted debris distributions.Quaternary Science Reviews,232. |
| MLA | Bigg G.R.."The impact of icebergs of sub-Antarctic origin on Southern Ocean ice-rafted debris distributions".Quaternary Science Reviews 232(2020). |
| 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 |
| [Bigg G.R.]的文章 |
| 百度学术 |
| 百度学术中相似的文章 |
| [Bigg G.R.]的文章 |
| 必应学术 |
| 必应学术中相似的文章 |
| [Bigg G.R.]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。
