Bulletin of the Geological Society of America . ger dolomite, had been partly eroded prior to the depositionof the Conestoga, and fragments of it were included in the conglomeratethat fills the solution crevices in the partly eroded masses of whitemarble. The conglomerate rests on the floor of Ledger dolomite in adja-cent areas where the marble bed had been entirely removed. These lime-stone conglomerates are interbedded with dark-blue, slaty, argillaceouslimestone of Conestoga t3pe, some of which weathers ribbed (see figure9). The variable character of the sedimentation of the. Conestoga issh
Bulletin of the Geological Society of America . ger dolomite, had been partly eroded prior to the depositionof the Conestoga, and fragments of it were included in the conglomeratethat fills the solution crevices in the partly eroded masses of whitemarble. The conglomerate rests on the floor of Ledger dolomite in adja-cent areas where the marble bed had been entirely removed. These lime-stone conglomerates are interbedded with dark-blue, slaty, argillaceouslimestone of Conestoga t3pe, some of which weathers ribbed (see figure9). The variable character of the sedimentation of the. Conestoga isshown in a small quarry near Leaman Place, where thin-bedded siliceousribbed limestones pass abruptly into thick-bedded granular limestone andlenticular beds of coarser conglomerate (see figures 6 and 7). Southeast of Lancaster the Conestoga overlaps onto lower and lowerbeds of the Ledger until, near Leaman Place, it is nearly down on theKinzers formation. At the Bellemont quarries, 2 miles southeast of LIMESTONE CONGLOMERATE AND ITS CONTACT 511. Figure 2.—Limestone Conglomerate at Base of Conestoga Limestone unconforniahJe on Ledger Dolomite In old quarry 2 miles northeast of Lancaster.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectgeology, bookyear1890
