| 项目编号: | 1546677
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| 项目名称: | EAGER: Reconstructing the Seismic History of the Teton Fault Using Lake Sediments at Grand Teton National Park, WY |
| 作者: | Mark Abbott
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| 承担单位: | University of Pittsburgh
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| 批准年: | 2014
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| 开始日期: | 2015-11-01
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| 结束日期: | 2017-10-31
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| 资助金额: | USD42225
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Earth Sciences
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| 英文关键词: | grand teton national park
; teton fault
; lake sediment
; fault movement
; lake-floor morphology
; grand teton region
; lake floor
; projectthis eager project
; numerous lake basin
; park visitor
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| 英文摘要: | Abstract
A non-technical description of the project, which explains the project's significance and importance
The spectacular scenery of Grand Teton National Park is largely the result of movement along the Teton Fault, which is still active today. Numerous lake basins populate the mountain front and earthquakes resulting from fault movement produce landslides that accumulate distinctive sediment layers on the lake floor. This project will investigate these sediments in order to determine the characteristics of the layers resulting from fault movement and to calculate the recurrence interval of earthquakes in the Grand Teton region over the past 15,000 years. In addition to developing methods for the long-standing problem of identifying the tectonic influences upon sediment deposition, this research will help Grand Teton National Park evaluate earthquake hazards and provide the basis for an educational program for park visitors.
A technical description of the project
This EAGER project will employ a comprehensive suite of well-established methods to investigate this distinctive geologic setting, where past tectonic activity is unusually well preserved in lake sediments. Multi-beam sonar bathymetric mapping, seismic surveys, and sediment cores from multiple lakes located directly on the Teton fault will be evaluated to produce: i) a high-resolution (centimeter-scale) bathymetric map of lake-floor morphology; ii) an inventory of landslide deposits and slope failures preserved in multiple basins positioned along the Teton fault trace; and iii) a continuous and accurately dated 15,000-year-long record of earthquakes and earthquake-driven disturbances at Grand Teton National Park. The paleoseismic record generated through this research is a key initial step toward developing a solid understanding of interactions among tectonic, climatic, and geomorphic processes, including their relative roles in driving landscape evolution. The results will also contribute to the development of a promising method for constructing paleoseismic records from lake sediments. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/93086
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| Appears in Collections: | 影响、适应和脆弱性
气候减缓与适应
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| Recommended Citation: | |
Mark Abbott. EAGER: Reconstructing the Seismic History of the Teton Fault Using Lake Sediments at Grand Teton National Park, WY. 2014-01-01.
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