Assertion: peat's material | /r/MadeOf | dark-brown fibrous sedge peat
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Source sentences:
text: The profile sections, obtained by sounding the small area along the trail about 2,000 feet from the road, are typical of slope muskegs, as follows: 0-1 foot; thin cover of light-brown fibrous sphagnum moss peat showing no appreciable differentiation from the color and texture of the growing mosses; it varies in thickness from 3 to 5 inches; the material overlies a thin seam of darkcolored sedge peat which contains an admixture of sphagnum mosses and the woody roots and shoots of heaths; the material below it consists of dark-brown fibrous sedge peat much of which is waterlogged, giving a reaction of pH 4.5 to 5.0.