Effect of short-term, climate-driven sediment deposition on tectonically controlled alluvial channel incision
文献类型：期刊论文
| 作者 | Wang, Xueliang5,6; Clague, John J.4; Frattini, Paolo3; Qi, Shengwen5,6; Lan, Hengxing2; Zhang, Wen1; Li, Lihui5,6; Sun, Juanjuan5,6; Crosta, Giovanni Battista3 |
| 刊名 | GEOLOGY
 |
| 出版日期 | 2023-10-30 |
| 页码 | 5 |
| ISSN号 | 0091-7613 |
| DOI | 10.1130/G51671.1 |
| 通讯作者 | Wang, Xueliang(wangxueliang@mail.iggcas.ac.cn) |
| 英文摘要 | Debate about relations between rates of fluvial incision and time (the "Sadler effect") continues, impeding the use of incision rates to infer tectonic and climatic processes. There is a dearth of detailed field evidence that can be used to explore the coupling between tectonics and climate in controlling alluvial channel geometry and incision rates over time scales of 10(2) -10(5) yr. We present field data from the Rumei watershed of southeast Tibet, which we obtained by mapping and dating late Pleistocene (ca. 135 ka) fluvial terraces and related channels, measuring channel hydraulic geometry, and calculating channel steepness indexes and incision rates. The evidence indicates that climate forcing is the main driver of sediment production and delivery to streams in the watershed. New aggradation events altered alluvial valley and channel geometry and, coupled with tectonic uplift, affected the rate of channel incision in the catchment. We propose a conceptual model [ I-1 - Sigma(n)(I)h(i(t ))/T ] 1 that links up lift driven incision (I-I) to channel aggradation [Sigma(n)(I)h(i(t ))/T] induced by climate change, which is valid in catchments and other areas. We conclude that the reduction in incision depth caused by climate-driven channel aggradation is significant on short time scales (10(2) -10(5) yr), and its cumulative effect contributes to the "Sadler effect" on long time scales (>10(6) yr). |
| WOS关键词 | RIVER INCISION ; THRESHOLD HILLSLOPES ; FLUVIAL INCISION ; LATE PLEISTOCENE ; RATES ; EROSION ; UPLIFT ; NORTHERN |
| 资助项目 | Second Tibetan Pla- teau Scientific Expedition and Research Program[2019QZKK0904] ; National Natural Science Foundation of China[42172304] ; National Natural Science Foundation of China[42041006] ; National Natural Science Foundation of China[41941019] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001096983000001 |
| 出版者 | GEOLOGICAL SOC AMER, INC |
| 资助机构 | Second Tibetan Pla- teau Scientific Expedition and Research Program ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/199544]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Xueliang |
| 作者单位 | 1.Jilin Univ, Coll Construct Engn, Changchun 130026, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 3.Univ Milano Bicocca, Dept Earth & Environm Sci, Piazza Sci 4, I-20126 Milan, Italy 4.Simon Fraser Univ, Dept Earth Sci, Burnaby, BC V5A 1S6, Canada 5.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 6.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xueliang,Clague, John J.,Frattini, Paolo,et al. Effect of short-term, climate-driven sediment deposition on tectonically controlled alluvial channel incision[J]. GEOLOGY,2023:5. |
| APA | Wang, Xueliang.,Clague, John J..,Frattini, Paolo.,Qi, Shengwen.,Lan, Hengxing.,...&Crosta, Giovanni Battista.(2023).Effect of short-term, climate-driven sediment deposition on tectonically controlled alluvial channel incision.GEOLOGY,5. |
| MLA | Wang, Xueliang,et al."Effect of short-term, climate-driven sediment deposition on tectonically controlled alluvial channel incision".GEOLOGY (2023):5. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
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。