. Annual report of the Regents. New York State Museum; Science. 42 Report of the State Geologist. The relations of the fault which branches to the southward, are plainly exhibited particularly along the road and in quarries three miles east of St. Johnsville, and also in the slopes and in an old quarry south of the river. This dislocation brings the middle beds of the Calciferous up to a horizon about 100 feet above the base of the Utica slate. The Utica slate east of the fault dips eastward at angles averaging about 20°, but this upturn dies out rapidly in a few rods. The river valley is cut
. Annual report of the Regents. New York State Museum; Science. 42 Report of the State Geologist. The relations of the fault which branches to the southward, are plainly exhibited particularly along the road and in quarries three miles east of St. Johnsville, and also in the slopes and in an old quarry south of the river. This dislocation brings the middle beds of the Calciferous up to a horizon about 100 feet above the base of the Utica slate. The Utica slate east of the fault dips eastward at angles averaging about 20°, but this upturn dies out rapidly in a few rods. The river valley is cut across the eroded block into the Calciferous with Trenton and Birdseye beds lying on the higher terraces, and the Utica slate above. Along a portion of the north side of the block the latter has been removed and the Trenton and Birdseye beds abut against the Calciferous along the main fault. The following section illustrates the relation of this inclosed block:. Figure 6.— Section across the Mohawk river, two miles below St. Johnsville, looking west. U. Utica slate. T. Trepton and Birdseye limetones. C. Calciferous. Vertical scale slightly exaggerated. The beds in the inclosed block dip westerly, and at St. Johns- ville the Utica slates come in and underlie the upper portion of the village. These slates are penetrated by a well at the con- densed milk factory on Zimmerman's creek, and according to Yanuxem they were once exposed, together with upturned edges of Trenton and Birdseye limestones, in the creek, near the side of this factory. The Calciferous rises abruptly in clijffs_ just beyond and curves around to the west and south on the upthrown side of the fault. Yanuxem states that " the slate was also exposed at the little bridge near by, in the bottom of the creek, inclining away from the Calciferous, which rises 100 feet above it. The slate dips to the south at an angle of about 45°. It shows much white carbonate of lime and some pyrites. The Calciferous at its ju
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