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DOI | 10.1029/2018GL077511 |
Evaluating the Duration and Continuity of Potential Climate Records From the Allan Hills Blue Ice Area, East Antarctica | |
Kehrl, Laura1,2; Conway, Howard1; Holschuh, Nicholas1; Campbell, Seth1,3; Kurbatov, Andrei V.3,4; Spaulding, Nicole E.4 | |
2018-05-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:9页码:4096-4104 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The current ice core record extends back 800,000 years. Geologic and glaciological evidence suggests that the Allan Hills Blue Ice Area, East Antarctica, may preserve a continuous record that extends further back in time. In this study, we use ice-penetrating radar and existing age constraints to map the internal stratigraphy and age structure of the Allan Hills Main Ice Field. The dated isochrones provide constraints for an ice flow model to estimate the age of ice near the bed. Previous drilling in the region recovered stratigraphically disturbed sections of ice up to 2.7 million years old. Our study identifies a site similar to 5 km upstream, which likely preserves a continuous record through Marine Isotope Stage 11 with the possibility that the record extends back 1 million years. Such records would provide new insight into the past climate and glacial history of the Ross Sea Sector. |
英文关键词 | Ice-penetrating radar Ice cores Blue ice areas Ice-flow modeling Paleoclimate records |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000434111700039 |
WOS关键词 | DOME C ; WEST ANTARCTICA ; TAYLOR GLACIER ; PATRIOT HILLS ; OLD ICE ; CORE ; DEGLACIATION ; PLEISTOCENE ; TRANSITION ; METEORITES |
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/28293 |
专题 | 气候变化 |
作者单位 | 1.Univ Washington, Earth & Space Sci, Seattle, WA 98195 USA; 2.Univ Washington, Polar Sci Ctr, Appl Phys Lab, Seattle, WA 98195 USA; 3.Univ Maine, Sch Earth & Climate Sci, Orono, ME USA; 4.Univ Maine, Climate Change Inst, Orono, ME USA |
推荐引用方式 GB/T 7714 | Kehrl, Laura,Conway, Howard,Holschuh, Nicholas,et al. Evaluating the Duration and Continuity of Potential Climate Records From the Allan Hills Blue Ice Area, East Antarctica[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(9):4096-4104. |
APA | Kehrl, Laura,Conway, Howard,Holschuh, Nicholas,Campbell, Seth,Kurbatov, Andrei V.,&Spaulding, Nicole E..(2018).Evaluating the Duration and Continuity of Potential Climate Records From the Allan Hills Blue Ice Area, East Antarctica.GEOPHYSICAL RESEARCH LETTERS,45(9),4096-4104. |
MLA | Kehrl, Laura,et al."Evaluating the Duration and Continuity of Potential Climate Records From the Allan Hills Blue Ice Area, East Antarctica".GEOPHYSICAL RESEARCH LETTERS 45.9(2018):4096-4104. |
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