Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.2172/92226 |
| 报告编号 | SAND--94-2038 |
| 来源ID | OSTI_ID: 92226 |
| Summary evaluation of Yucca Mountain surface transects with implications for downhole sampling. Yucca Mountain Site Characterization Project | |
| Mckenna, S.A.; Rautman, C.A. | |
| 英文摘要 | The results of previously completed vertical outcrop sampling transacts are summarized with respect to planning downhole sampling. The summary includes statistical descriptions and descriptions of the spatial variability of the sampled parameters. Descriptions are made on each individual transect, each thermal/mechanical unit and each previously defined geohydrologic unit. Correlations between parameters indicate that saturated hydraulic conductivity is not globally correlated to porosity. The correlation between porosity and saturated hydraulic conductivity is both spatially and lithologically dependent. Currently, there are not enough saturated hydraulic conductivity and sorptivity data to define relationships between these properties and porosity on a unit by unit basis. Also, the Prow Pass member of the Crater Flat Tuff and stratigraphically lower units have gone essentially unsampled in these outcrop transacts. The vertical correlation length for hydrologic properties is not constant across the area of the transacts. The average sample spacing within the transacts ranges from 1.25 to 2.1 meters. It appears that, with the exception of the Topopah Spring member units, a comparable sample spacing will give adequate results in the downhole sampling campaign even with the nonstationarity of the vertical correlation. The properties within the thermal/mechanical units and geohydrologic units of the Topopah Spring member appear to have a spatial correlation range less than or equal to the current sample spacing within these units. For the downhole sampling, a sample spacing of less than 1.0 meters may be necessary within these units. |
| 出版年 | 1995 |
| 报告类型 | Technical Report |
| 语种 | 英语 |
| 国家 | 美国 |
| 来源学科分类 | 05 NUCLEAR FUELS ; 54 ENVIRONMENTAL SCIENCES ; 58 GEOSCIENCES ; HIGH-LEVEL RADIOACTIVE WASTES ; UNDERGROUND DISPOSAL ; TUFF ; SAMPLING ; YUCCA MOUNTAIN ; HYDROLOGY ; GEOLOGY ; HYDRAULIC CONDUCTIVITY ; SITE CHARACTERIZATION ; Yucca Mountain Project |
| URL | http://www.osti.gov/scitech/servlets/purl/92226 |
| 资源类型 | 科技报告 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/266203 |
| 推荐引用方式 GB/T 7714 | Mckenna, S.A.,Rautman, C.A.. Summary evaluation of Yucca Mountain surface transects with implications for downhole sampling. Yucca Mountain Site Characterization Project,1995. |
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