Last Updated
：2025/12/07
baserock
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The layer of hardrock that lies beneath any surface soil, clay, silt, gravel, and/or sedimentary rock.
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baserock
During the survey, engineers discovered a layer of compact baserock just below the topsoil, which limited excavation depth.
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During the survey, engineers discovered a layer of compact baserock just below the topsoil, which limited excavation depth.
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