Annual report . and yellow clays are calcareous and effervescewith acid. They have been used as marls on account of their limecontent. The yellow color is due to oxidation. The clays are usedentirely for brick. Clay deposits also occur at Arlington, a mile east of Poughkeepsie,and are used for brick. The clay which is fairly abundant alongthe banks of Casper creek in the neighborhood of Arlington iscovered with some sod, but is easily exposed by stripping this clay is underlain by blue clay. It seems possible that the deposits at Arlington were accumulatedin lacustrine waters, perha
Annual report . and yellow clays are calcareous and effervescewith acid. They have been used as marls on account of their limecontent. The yellow color is due to oxidation. The clays are usedentirely for brick. Clay deposits also occur at Arlington, a mile east of Poughkeepsie,and are used for brick. The clay which is fairly abundant alongthe banks of Casper creek in the neighborhood of Arlington iscovered with some sod, but is easily exposed by stripping this clay is underlain by blue clay. It seems possible that the deposits at Arlington were accumulatedin lacustrine waters, perhaps impounded by stagnant ice at themouth of Casper creek. The kames (see plate 21) that now lienear the mouth of the creek may have been left by the melting ofsuch a mass of ice. Limestone quarries. Quarries have been opened at places inthe limestone strips of the Wappinger creek belt. The largest ofthese is Stoneco quarry, operated by the Clinton Point Stone Com- : Ries, X. Y. State Mus. Bui. 35, 1906, p. / • » ft i* , &T< V #M rH JW* a: E: ? *4 ! v^ / %$ %;%*% « •?• /* &jfr. / ! i » i#f iff. mi
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectscience, bookyear1902
