. Bulletin - New York State Museum. Science. 98 NEW YOPvK STATE MUSEUM change. The thin portion does not represent the whole of the thicker portion but only the upper part. It likewise shows how within a short distance new members may appear below the one forming the base in the first section. With the normal conditions thus outlined we are still con- fronted by another fact which seems to form a marked exception. Fiff. 6 to the general rule. We not infrequently' find clastic limestones whose character, resting directly on an old land of silicious rocks on which they were deposited, indicattes
. Bulletin - New York State Museum. Science. 98 NEW YOPvK STATE MUSEUM change. The thin portion does not represent the whole of the thicker portion but only the upper part. It likewise shows how within a short distance new members may appear below the one forming the base in the first section. With the normal conditions thus outlined we are still con- fronted by another fact which seems to form a marked exception. Fiff. 6 to the general rule. We not infrequently' find clastic limestones whose character, resting directly on an old land of silicious rocks on which they were deposited, indicattes a shallow sea. Never- theless silicious clastic material is almost or quite absent from these rocks. In such cases the only explanation seems to be that the water was shallow a considerable distance from shore and that the shore was worn down so low that little or no detritus could be supplied; i. e. worn down to a Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original New York State Museum; New York State Museum. Albany : New York State Education Dept
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectscience, bookyear1887
