1992
DOI: 10.3133/ofr9243
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Hydrogeology of thick till deposits in Connecticut

Abstract: Thick-till deposits in Connecticut have been identified by the Connecticut Hazardous Waste Management Service as a hydrogeologically preferred setting for a low-level radioactive-waste disposal site. These deposits are found throughout the State, and the thickest compose drum!ins. Till in Connecticut is texturally variable, but most varieties are sandy, consisting of a nonsorted matrix of sand, silt, and clay that contains scattered gravel clasts. Till overlies fractured crystalline (metamorphic and igneous) b… Show more

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Cited by 5 publications
(2 citation statements)
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“…In areas of thick till (greater than 15 ft), a porosity of 0.25 was used. This value is consistent with values reported by Melvin (1992) for compact surface tills of the sedimentary rock provenance. The effective porosity (the total porosity minus the retention) of bedrock represents the porosity due to the density and aperture of bedrock fractures.…”
Section: Discussionsupporting
confidence: 93%
“…In areas of thick till (greater than 15 ft), a porosity of 0.25 was used. This value is consistent with values reported by Melvin (1992) for compact surface tills of the sedimentary rock provenance. The effective porosity (the total porosity minus the retention) of bedrock represents the porosity due to the density and aperture of bedrock fractures.…”
Section: Discussionsupporting
confidence: 93%
“…The hydraulic conductivity of till derived from sedimentary rocks is typically about 8.5 x 10'3 ft/d (Melvin and others, 1992b). Values reported by Melvin and others (1992a;1992b) agree with those cited by other investigators (Mazzaferro and others, 1979;Randall and others, 1988;Stephenson and others, 1988). Melvin and others (1992a;1992b) also report a porosity of these tills that ranges from 18 to 40.1 percent, with a typical value of about 25 percent.…”
Section: Hydrologysupporting
confidence: 80%