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- W4292452019 abstract "Three-dimensional modelling of superficial geology is challenging, particularly for complex industrial sites such as the Sellafield nuclear site, Cumbria, UK. A lithostratigraphic approach is sufficient to show distribution of key units where only a general understanding of hydrogeology is required. For many sites, however, a much higher-resolution understanding is needed to better characterize heterogeneity and identify potential pathways for contaminant transport within safety case development and remediation planning. Models that focus on often thin, laterally discontinuous, heterogeneous sedimentary units are beset with issues including (1) a lack of exposure coupled with a dearth of data gathered by low-intrusive and intrusive means, (2) structural, stratigraphic and sedimentological complexities making correlation between data points difficult and (3) uncertainties associated with data quality. However, these problems may be overcome by combining land-system-based sedimentary and glaciotectonic architectural analysis of local field analogues with the creation of a portfolio of generic unit-bounding surface geometries. We test this through the development of a high-resolution 3D geological model of Sellafield nuclear site, where exposures are sparse, but shallow site-investigation boreholes are many. The results demonstrate that land-system-based sedimentary and glaciotectonic architectural element analysis can be applied to capture substantial subsurface heterogeneity resulting from dynamic glacial processes." @default.
- W4292452019 created "2022-08-20" @default.
- W4292452019 creator A5004582188 @default.
- W4292452019 creator A5050645153 @default.
- W4292452019 creator A5077407651 @default.
- W4292452019 date "2022-10-19" @default.
- W4292452019 modified "2023-10-14" @default.
- W4292452019 title "High-resolution 3D geological modelling of heterogeneity in poorly exposed glacial deposits using sedimentary and glaciotectonic architectural element analysis: a case example from Sellafield in west Cumbria, UK" @default.
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