. Annual report of the Regents. New York State Museum; Science. Fig. 23 Channel in Manliu^ limestone with Oi-iskany sandstone and conglomerate layers, capped by Onondaga limestone, Buffalo cement quarry. caused by the filling of an ancient fissure in the Siluric strata, by sands forcibly injected from above. The fissure had a total depth of about 10 teet; its walls were very irregular, and at intervals lateral fissures extended in both directions. (See Fig. 24) All of these are now filled with pure quartz sand, firmly united into a quartzose sandstone by the deposition of additional silica in
. Annual report of the Regents. New York State Museum; Science. Fig. 23 Channel in Manliu^ limestone with Oi-iskany sandstone and conglomerate layers, capped by Onondaga limestone, Buffalo cement quarry. caused by the filling of an ancient fissure in the Siluric strata, by sands forcibly injected from above. The fissure had a total depth of about 10 teet; its walls were very irregular, and at intervals lateral fissures extended in both directions. (See Fig. 24) All of these are now filled with pure quartz sand, firmly united into a quartzose sandstone by the deposition of additional silica in the interstices be- tween the sand Fig. 24 Sandstone dilce in the Siluric strata of the Buffalo cement quarries. (After Clarke) The dike penetrates the " bullhead " rock and enters the water- lime to a depth of from 2 to 3 feet. It is squarely cut off at the top, where the Onondaga limestone rests on its truncated end and on the limestone flanking it. The Onondaga limestone is entirely unaffected by the dike, being evidently deposited after the formation and truncation of this remarkable mass of sandstone. The width of. 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; University of the State of New York. Board of Regents. Albany : J. B. Lyon, State Printer
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Keywords: ., bookauthorne, bookcentury1800, bookdecade1880, booksubjectscience
