Hydrogeologic Model for the Gable Gap Area, Hanford Site

doi:10.2172/992820

GSTDTAP > 地球科学

DOI	10.2172/992820
报告编号	PNNL-19702
来源ID	OSTI ID: 992820
	Hydrogeologic Model for the Gable Gap Area, Hanford Site
	Bjornstad, Bruce N.; Thorne, Paul D.; Williams, Bruce A.; Last, George V.; Thomas, Gregory S.; Thompson, Michael D.; Ludwig, Jami L.; Lanigan, David C.
	2010-09-30
出版年	2010
语种	英语
国家	美国
领域	地球科学
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.
英文关键词	Gable Gap Hanford Site Gable Mountain Gable Butte geology
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来源平台	US Department of Energy (DOE)
引用统计
文献类型	科技报告
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/4943
专题	地球科学
推荐引用方式 GB/T 7714	Bjornstad, Bruce N.,Thorne, Paul D.,Williams, Bruce A.,et al. Hydrogeologic Model for the Gable Gap Area, Hanford Site,2010.