Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.5194/tc-9-439-2015 |
Stratigraphy of Lake Vida, Antarctica: hydrologic implications of 27 m of ice | |
Dugan, H. A.1,2; Doran, P. T.1; Wagner, B.3; Kenig, F.1; Fritsen, C. H.4; Arcone, S. A.5; Kuhn, E.4; Ostrom, N. E.6; Warnock, J. P.7; Murray, A. E.4 | |
通讯作者 | Dugan, H. A. |
来源期刊 | CRYOSPHERE
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ISSN | 1994-0416 |
EISSN | 1994-0424 |
出版年 | 2015 |
卷号 | 9期号:2页码:439-450 |
英文摘要 | Lake Vida, located in Victoria Valley, is one of the largest lakes in the McMurdo dry valleys and is known to contain hypersaline liquid brine sealed below 16 m of freshwater ice. For the first time, Lake Vida was drilled to a depth of 27 m. Below 21 m the ice is marked by well-sorted sand layers up to 20 cm thick within a matrix of salty ice. From ice chemistry, isotopic composition of delta O-18 and delta H-2, and ground penetrating radar profiles, we conclude that the entire 27 m of ice formed from surface runoff and the sediment layers represent the accumulation of surface deposits. Radiocarbon and optically stimulated luminescence dating limit the maximum age of the lower ice to 6300 C-14 yr BP. As the ice cover ablated downwards during periods of low surface inflow, progressive accumulation of sediment layers insulated and preserved the ice and brine beneath, analogous to the processes that preserve shallow ground ice. The repetition of these sediment layers reveals hydrologic variability in Victoria Valley during the mid-to late Holocene. Lake Vida is an exemplar site for understanding the preservation of subsurface brine, ice, and sediment in a cold desert environment. |
类型 | Article |
语种 | 英语 |
国家 | USA ; Germany |
收录类别 | SCI-E |
WOS记录号 | WOS:000353878400002 |
WOS关键词 | MCMURDO DRY VALLEYS ; SOUTHERN VICTORIA LAND ; TAYLOR VALLEY ; ISOTOPE GEOCHEMISTRY ; UNIVERSITY VALLEY ; GROUND ICE ; HOARE ; FRYXELL ; DEPOSITS ; QUARTZ |
WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
WOS研究方向 | Physical Geography ; Geology |
来源机构 | Desert Research Institute |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/186625 |
作者单位 | 1.Univ Illinois, Dept Earth & Environm Sci, Chicago, IL 60607 USA; 2.Univ Wisconsin, Ctr Limnol, Madison, WI 53706 USA; 3.Univ Cologne, Inst Geol & Mineral, D-50931 Cologne, Germany; 4.Univ Nevada, Desert Res Inst, Div Earth & Ecosyst Sci, Reno, NV 89506 USA; 5.US Army, Cold Reg Res & Engn Lab, Hanover, NH 03755 USA; 6.Michigan State Univ, Dept Zool, E Lansing, MI 48824 USA; 7.No Illinois Univ, Dept Geol & Environm Geosci, De Kalb, IL USA |
推荐引用方式 GB/T 7714 | Dugan, H. A.,Doran, P. T.,Wagner, B.,et al. Stratigraphy of Lake Vida, Antarctica: hydrologic implications of 27 m of ice[J]. Desert Research Institute,2015,9(2):439-450. |
APA | Dugan, H. A..,Doran, P. T..,Wagner, B..,Kenig, F..,Fritsen, C. H..,...&Murray, A. E..(2015).Stratigraphy of Lake Vida, Antarctica: hydrologic implications of 27 m of ice.CRYOSPHERE,9(2),439-450. |
MLA | Dugan, H. A.,et al."Stratigraphy of Lake Vida, Antarctica: hydrologic implications of 27 m of ice".CRYOSPHERE 9.2(2015):439-450. |
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