Annual report . ip the topographygenerally indicates a very gently sloping almost flat substratum ofrock, and the extraordinary width of the belt is plainly due to thenearly horizontal position of the underlying strata for long distances. The varieties of reck described by Professor Dwight wouldseem to be accounted for mainly as outcrops across the dip of severalbeds showing variations of texture and composition, and partly tothe different effects of weathering on these, as well as to possiblefrictional brecciation. The portion of the sectionwhich may be seen at Stonec )in the quarry of the Cl
Annual report . ip the topographygenerally indicates a very gently sloping almost flat substratum ofrock, and the extraordinary width of the belt is plainly due to thenearly horizontal position of the underlying strata for long distances. The varieties of reck described by Professor Dwight wouldseem to be accounted for mainly as outcrops across the dip of severalbeds showing variations of texture and composition, and partly tothe different effects of weathering on these, as well as to possiblefrictional brecciation. The portion of the sectionwhich may be seen at Stonec )in the quarry of the ClintonPoint Stone Company is be-tween one-fourth and one-third of the breadth of the tig. 19 Section at btoneco quarry strip from its eastern margin and displays a thick mass of dolomitic limestone dipping gently tothe west (see plate 8). For the most part it is thick-bedded. Thereare some thinner layers near the top and in the middle. Some bedscarry numerous chertlike masses and in this particular, as well as in. 54 NEW YORK STATE MUSEUM general character, the reck strongly resembles the variety describedabove along the Spackenkill road en the farm of Mr Mulkemusnear the eastern margin of the belt. No fossils were found in thebeds of this quarry and hence no definite idea of its age could beobtained. Just east of Camelot station, as described above, arenaceous lime-stone identical with that in Rupperts quarry, clips to the south atan angle of 12°. This suggests a southward pitch and a superiorposition for the strata in the Stoneco quarry, a mile to the southof Camelot. The stratigraphic position and estimated thickness of the Stonecobeds agree with those of the cherty rocks along the Spackenkillroad to the northeast. Presumably these strata once entirelycovered the Upper Cambric (Potsdam) along the central andwestern portions of the strip and have been preserved at the southon account of the pitch of the series. Structural features. It is not possible to tell with absolutecert
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectscience, bookyear1902
