Previously Mapped Marine Clay
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下载链接：
https://data-uvalibrary.opendata.arcgis.com/datasets/Fairfaxcountygis::previously-mapped-marine-clay
下载链接
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资源简介：
These areas were mapped as marine clays in previous surveys. Marine clays are high shrink-swell soils that can cause foundation distress. They are sometimes referred to as Potomac Clays or Deltaic Clays.
提供机构：
County of Fairfax
