Preliminary results of the close-off depth and the stable isotopic records along a 109.91 m ice core from Dome A, Antarctica
文献类型：期刊论文
| 作者 | Hou ShuGui1; Li YuanSheng2; Xiao CunDe1; Pang HongXi3; Xu JianZhong1 |
| 刊名 | SCIENCE IN CHINA SERIES D-EARTH SCIENCES
 |
| 出版日期 | 2009-10-01 |
| 卷号 | 52期号:10页码:1502-1509 |
| 关键词 | Antarctica Dome A ice core close-off depth stable isotopes |
| ISSN号 | 1006-9313 |
| DOI | 10.1007/s11430-009-0039-6 |
| 通讯作者 | Hou ShuGui(shugui@lzb.ac.cn) |
| 英文摘要 | A 109.91 m ice core was recovered from Dome A (or Dome Argus), the highest ice feature in Antarctica, during the 2004/05 austral summer by the 21st Chinese National Antarctic Research Expedition (CHINARE-21). Both methane profile along the core and firn densification model calculation suggest that the close-off depth is at about 102.0 m with an ice age about 4200 a. Stable isotopes (delta O-18 and delta D) of the chips samples produced during each run of ice core drilling at Dome A, together with those of the other cores recovered from the eastern inland Antarctica, suggest a relative stable climate with a temperature fluctuation amplitude about +/-0.6 degrees C at the eastern inland Antarctica during the late Holocene. The average d-excess (or d = delta D-8 delta O-18) of 17.1 parts per thousand along the Dome A core is probably the highest among the Antarctic inland ice cores, which may be resulted from the kinetic fractionation during the snow formation under an oversaturation condition. Moreover, the increasing trend of d-excess during the late Holocene reflects mainly the migration of the water source area for precipitation at Dome A towards low latitudes. This paper presents the first results of a shallow ice core recovered from the unexplored highest area of the Antarctic ice sheet, providing a background for the proposing deep ice core drilling at Dome A. |
| 收录类别 | SCI |
| WOS关键词 | SOUTHERN-HEMISPHERE ; LAST DEGLACIATION ; DEUTERIUM EXCESS ; EAST ANTARCTICA ; FIRN-AIR ; PRECIPITATION ; GREENLAND ; HOLOCENE ; CLIMATE ; MODEL |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000271097800004 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556230 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Hou ShuGui |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Cryospher Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Polar Res Inst China, Shanghai 200129, Peoples R China 3.Tongji Univ, State Key Lab Marine Geol, Shanghai 200092, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hou ShuGui,Li YuanSheng,Xiao CunDe,et al. Preliminary results of the close-off depth and the stable isotopic records along a 109.91 m ice core from Dome A, Antarctica[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2009,52(10):1502-1509. |
| APA | Hou ShuGui,Li YuanSheng,Xiao CunDe,Pang HongXi,&Xu JianZhong.(2009).Preliminary results of the close-off depth and the stable isotopic records along a 109.91 m ice core from Dome A, Antarctica.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,52(10),1502-1509. |
| MLA | Hou ShuGui,et al."Preliminary results of the close-off depth and the stable isotopic records along a 109.91 m ice core from Dome A, Antarctica".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 52.10(2009):1502-1509. |
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来源：寒区旱区环境与工程研究所
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