Lithofacies characteristics and sedimentary model of a gravelly braided river-dominated fan: a case study of modern Poplar River alluvial fan (northwest Junggar Basin, China)
文献类型：期刊论文
| 作者 | Liu, D. -W.3,4,5; Ji, Y. -L.3; Gao, C. -L.2; Zhong, J.1; Qi, Y.4,5 |
| 刊名 | AUSTRALIAN JOURNAL OF EARTH SCIENCES
 |
| 出版日期 | 2021-04-26 |
| 页码 | 22 |
| 关键词 | braided river-dominated fan lithofacies grainsize characteristics lithofacies associations sedimentary model |
| ISSN号 | 0812-0099 |
| DOI | 10.1080/08120099.2021.1905713 |
| 英文摘要 | Conglomerate reservoirs in alluvial fans commonly contain economic crude oil, but it is challenging to depict the distribution of conglomerate reservoirs or to summarise the sedimentary model in alluvial fans deposits owing to their complex lithofacies changes and variable hydrodynamic conditions. This paper focuses on the Poplar River alluvial fan in the northwest Junggar Basin, China, as a special case to analyse its sedimentary processes and to build a sedimentary model through detailed outcrop mapping and grainsize analysis. The Poplar River alluvial fan is a braided river-dominated fan with the characteristics of a large fan size (approximate 327.6 km(2)), gentle slope (similar to<0.04-0.07 degrees), coarse sediments (mainly cobbles or finer pebbles) and rare fine-mud sediments deposited from floods. In this alluvial fan, 15 lithofacies are identified that mainly formed in five hydrodynamic environments: (i) debris-flow deposits; (ii) high-flow traction current deposits; (iii) low-flow traction current deposits; (iv) still-water deposits; and (v) eolian deposits. Moreover, the sedimentary processes on the Poplar River alluvial fan can be divided into flood and interflood periods. During flood periods, sediment deposition plays a major role on the alluvial fan. From the proximal to distal parts, six lithofacies associations can be identified: feeder-channel and sheet-flow deposits in the proximal part, sheet flood and braided-stream deposits in the intermediate part, and channel deposits and wetland deposits in the distal fan areas. During the interflood periods, sediment reworking is the most important function, and three lithofacies associations are identified: main-channel deposits in the proximal fan, braided-trench deposits in the intermediate fan and wetland deposits in the distal area. The braided-stream deposits, braided-trench deposits and sheet-flood deposits have the best potential for high-quality aquifers or oil reservoirs based on their moderately well-sorted grains and high primary permeable intervals. |
| WOS关键词 | CONGLOMERATE |
| 资助项目 | National Natural Science Foundation of China[42072115] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000644376700001 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/101170]  |
| 专题 | 地质与地球物理研究所_中国科学院油气资源研究重点实验室 |
| 通讯作者 | Ji, Y. -L. |
| 作者单位 | 1.PetroChina Xinjiang Oilfield, Fengcheng Operat Area, Karamay, Peoples R China 2.Northwest Petr Univ, Minist Educ, Key Lab Continental Shale Hydrocarbon Accumulat &, Daqing, Peoples R China 3.China Univ Petr, Coll Geosci, Beijing 102249, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing, Peoples R China 5.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, D. -W.,Ji, Y. -L.,Gao, C. -L.,et al. Lithofacies characteristics and sedimentary model of a gravelly braided river-dominated fan: a case study of modern Poplar River alluvial fan (northwest Junggar Basin, China)[J]. AUSTRALIAN JOURNAL OF EARTH SCIENCES,2021:22. |
| APA | Liu, D. -W.,Ji, Y. -L.,Gao, C. -L.,Zhong, J.,&Qi, Y..(2021).Lithofacies characteristics and sedimentary model of a gravelly braided river-dominated fan: a case study of modern Poplar River alluvial fan (northwest Junggar Basin, China).AUSTRALIAN JOURNAL OF EARTH SCIENCES,22. |
| MLA | Liu, D. -W.,et al."Lithofacies characteristics and sedimentary model of a gravelly braided river-dominated fan: a case study of modern Poplar River alluvial fan (northwest Junggar Basin, China)".AUSTRALIAN JOURNAL OF EARTH SCIENCES (2021):22. |
入库方式： OAI收割
来源：地质与地球物理研究所
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