| DOI: | 10.2172/992820
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| 报告号: | PNNL-19702
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| 报告题名: | Hydrogeologic Model for the Gable Gap Area, Hanford Site |
| 作者: | Bjornstad, Bruce N.; Thorne, Paul D.; Williams, Bruce A.; Last, George V.; Thomas, Gregory S.; Thompson, Michael D.; Ludwig, Jami L.; Lanigan, David C.
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| 出版年: | 2010
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| 发表日期: | 2010-09-30
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| 国家: | 美国
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| 语种: | 英语
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| 英文关键词: | Gable Gap
; Hanford Site
; Gable Mountain
; Gable Butte
; geology
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| 中文主题词: | 含水层
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| 主题词: | AQUIFERS
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| 英文摘要: | Gable Gap is a structural and topographic depression between Gable Mountain and Gable Butte within the central Hanford Site. It has a long and complex geologic history, which includes tectonic uplift synchronous with erosional downcutting associated with the ancestral Columbia River during both Ringold and Cold Creek periods, and by the later Ice Age (mostly glacial Lake Missoula) floods. The gap was subsequently buried and partially backfilled by mostly coarse-grained, Ice Age flood deposits (Hanford formation). Erosional remnants of both the Ringold Formation and Cold Creek unit locally underlie the high-energy flood deposits. A large window exists in the gap where confined basalt aquifers are in contact with the unconfined suprabasalt aquifer. Several paleochannels, of both Hanford and Ringold Formation age, were eroded into the basalt bedrock across Gable Gap. Groundwater from the Central Plateau presently moves through Gable Gap via one or more of these shallow paleochannels. As groundwater levels continue to decline in the region, groundwater flow may eventually be cut off through Gable Gap. |
| URL: | http://www.osti.gov/scitech/servlets/purl/992820
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| Citation statistics: |
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| 资源类型: | 研究报告
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/39655
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| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
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| 992820.pdf（27043KB） | 研究报告 | -- | 开放获取 | | View
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| Recommended Citation: | |
Bjornstad, Bruce N.,Thorne, Paul D.,Williams, Bruce A.,et al. Hydrogeologic Model for the Gable Gap Area, Hanford Site. 2010-01-01.
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