Climate Change Data Portal
| DOI | 10.1130/GES02737.1 |
| Tectonic geomorphology and Quaternary slip history of the Fuyun fault, southwestern Altai Mountains, central Asia | |
| 发表日期 | 2024 |
| ISSN | 1553-040X |
| 英文摘要 | The northwest-trending Altai Mountains of central Asia expose a complex network of thrust and strike-slip faults that are key features accommodating intracontinental crustal shortening related to the Cenozoic India-Asia collision. In this study, we investigated the Quaternary slip history of the Fuyun fault, a right-lateral strike-slip fault bounding the southwestern margin of the Altai Mountains, through geologic mapping, geomorphic surveying, and optically stimulated luminescence (OSL) geochronology. At the Kuoyibagaer site, the Fuyun fault displaces three generations of Pleistocene-Holocene fill-cut river terraces (i.e., T-3, T-2, and T-1) containing landslide and debris-flow deposits. The right-lateral offsets are magnified by erosion of terrace risers, suggesting that river course migration has been faster than slip along the Fuyun fault. The highest T-p2 terrace was abandoned in the middle Pleistocene (150.4 +/- 8.1 ka uppermost OSL age) and was displaced 145.5 +45.6/-12.1 m along the Fuyun fault, yielding a slip rate of 1.0 +0.4/-0.1 mm/yr since the middle Pleistocene. The lower T-p1 terrace was abandoned in the late Pleistocene and aggraded by landslides and debris flows in the latest Pleistocene-Holocene (36.7 +/- 1.6 ka uppermost OSL age). T-p1 was displaced 67.5 +14.2/-6.1 m along the Fuyun fault, yielding a slip rate of 1.8 +0.5/-0.2 mm/yr since the late Pleistocene. Our preferred minimum slip rate of similar to 1 mm/yr suggests the Fuyun fault accommodates similar to 16% of the average geodetic velocity of similar to 6 mm/yr across the Altai Mountains. Integration of our new Fuyun slip rate with other published fault slip rates accounts for similar to 4.2 mm/yr of convergence across the Chinese Altai, or similar to 70% of the geodetic velocity field. |
| 语种 | 英语 |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| WOS记录号 | WOS:001216365600001 |
| 来源期刊 | GEOSPHERE
 |
| 来源机构 | 中国科学院青藏高原研究所 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/303612 |
| 作者单位 | Chinese Academy of Sciences; Institute of Tibetan Plateau Research, CAS; University of California System; University of California Los Angeles; China Earthquake Administration; Nevada System of Higher Education (NSHE); University of Nevada Reno; University of North Carolina; University of North Carolina Wilmington |
| 推荐引用方式 GB/T 7714 | . Tectonic geomorphology and Quaternary slip history of the Fuyun fault, southwestern Altai Mountains, central Asia[J]. 中国科学院青藏高原研究所,2024. |
| APA | (2024).Tectonic geomorphology and Quaternary slip history of the Fuyun fault, southwestern Altai Mountains, central Asia.GEOSPHERE. |
| MLA | "Tectonic geomorphology and Quaternary slip history of the Fuyun fault, southwestern Altai Mountains, central Asia".GEOSPHERE (2024). |
| 条目包含的文件 | 条目无相关文件。 | |||||
| 个性服务 |
| 推荐该条目 |
| 保存到收藏夹 |
| 导出为Endnote文件 |
| 谷歌学术 |
| 谷歌学术中相似的文章 |
| 百度学术 |
| 百度学术中相似的文章 |
| 必应学术 |
| 必应学术中相似的文章 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
