Microstructures and Fabric Transitions of Natural Ice from the Styx Glacier, Northern Victoria Land, Antarctica
文献类型：期刊论文
| 作者 | Kim, Daeyeong6; Prior, David J.5; Han, Yeongcheol4; Qi, Chao3; Han, Hyangsun2; Ju, Hyeon Tae1 |
| 刊名 | MINERALS
 |
| 出版日期 | 2020-10-01 |
| 卷号 | 10期号:10页码:18 |
| 关键词 | Ice microstructure crystallographic preferred orientation (CPO) Styx Glacier electron backscatter diffraction (EBSD) |
| DOI | 10.3390/min10100892 |
| 英文摘要 | We investigated the microstructures of five ice core samples from the Styx Glacier, northern Victoria Land, Antarctica. Evidence of dynamic recrystallization was found in all samples: those at 50 m mainly by polygonization, and those at 170 m, largely by grain boundary migration. Crystallographic preferred orientations of all analyzed samples (view from the surface) typically showed a single cluster of c-axes normal to the surface. A girdle intersecting the single cluster occurs at 140-170 m with a tight cluster of a-axes normal to the girdle. We interpret the change of crystallographic preferred orientations (CPOs) at <140 m as relating to a combination of vertical compression, and shear on a horizontal plane, and the girdle CPOs at depths >140 m, as the result of horizontal extension. Based on the data obtained from the ground penetrating radar, the underlying bedrock topography of a nunatak could have generated the extensional stress regime in the study area. The results imply changeable stress regimes that may occur during burial as a result of external kinematic controls, such as an appearance of a small peak in the bedrock. |
| WOS关键词 | ELECTRON BACKSCATTER DIFFRACTION ; GREENLAND ICE ; POLYCRYSTALLINE ICE ; SUBGRAIN BOUNDARIES ; PHYSICAL-PROPERTIES ; SHEET ; SNOW ; DEFORMATION ; CORE ; TEMPERATURE |
| 资助项目 | KOPRI project[PE20030] |
| WOS研究方向 | Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000585187900001 |
| 出版者 | MDPI |
| 资助机构 | KOPRI project ; KOPRI project ; KOPRI project ; KOPRI project ; KOPRI project ; KOPRI project ; KOPRI project ; KOPRI project |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/98677]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 通讯作者 | Kim, Daeyeong |
| 作者单位 | 1.Korea Polar Res Inst, Antarctic K Route Expedit Team, Incheon 21990, South Korea 2.Kangwon Natl Univ, Dept Geophys, Chunchon 24341, South Korea 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China 4.Korea Polar Res Inst, Div Polar Paleoenvironm, Incheon 21990, South Korea 5.Univ Otago, Dept Geol, Dunedin 9054, New Zealand 6.Korea Polar Res Inst, Div Polar Earth Syst Sci, Incheon 21990, South Korea |
| 推荐引用方式 GB/T 7714 | Kim, Daeyeong,Prior, David J.,Han, Yeongcheol,et al. Microstructures and Fabric Transitions of Natural Ice from the Styx Glacier, Northern Victoria Land, Antarctica[J]. MINERALS,2020,10(10):18. |
| APA | Kim, Daeyeong,Prior, David J.,Han, Yeongcheol,Qi, Chao,Han, Hyangsun,&Ju, Hyeon Tae.(2020).Microstructures and Fabric Transitions of Natural Ice from the Styx Glacier, Northern Victoria Land, Antarctica.MINERALS,10(10),18. |
| MLA | Kim, Daeyeong,et al."Microstructures and Fabric Transitions of Natural Ice from the Styx Glacier, Northern Victoria Land, Antarctica".MINERALS 10.10(2020):18. |
入库方式： OAI收割
来源：地质与地球物理研究所
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