Knowledge Resource Center for Ecological Environment in Arid Area
| Diatom Records of Holocene Climatic and Hydrological Changes in the Western Hudson Bay Region, Canada | |
| Friel;Charlotte | |
| 出版年 | 2011 |
| 英文摘要 | Rapidly changing climates in northern Canada make the western Hudson Bay region an area of high importance for paleoenvironmental studies. Long-term changes in assemblages of diatoms (microscopic algae) were analyzed from lake sediment cores from Baker Lake, Nunavut, and Lake AT01, northern Ontario, to track responses to past environmental changes. Diatom assemblages dating to 6700 years ago in AT01 were initially characterized by cold- tolerant Fragilarioid assemblages, but shifted to an assemblage dominated by large benthic species and Cymbella diluviana consistent with the timing of the Holocene Thermal Maximum after 6300 years BP. A possible drainage event in Lake AT01 may have added significant hydrologic control on the diatom assemblages. The post-industrial period is marked by the largest compositional shifts in both records. Assemblages during the 20th century are indicative of reduced ice cover and enhanced thermal stratification linked to a climate regime shift noted in Hudson Bay since the mid-1990’s. |
| 英文关键词 | Diatoms Hudson Bay Lowlands Paleoclimatology Paleolimnology Climate Hydrology 0426 |
| 语种 | 英语 |
| URL | http://hdl.handle.net/1807/30595 |
| 资源类型 | 学位论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/246021 |
| 推荐引用方式 GB/T 7714 | Friel;Charlotte. Diatom Records of Holocene Climatic and Hydrological Changes in the Western Hudson Bay Region, Canada[D],2011. |
| 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 |
| [Friel;Charlotte]的文章 |
| 百度学术 |
| 百度学术中相似的文章 |
| [Friel;Charlotte]的文章 |
| 必应学术 |
| 必应学术中相似的文章 |
| [Friel;Charlotte]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。
