Ground water in the Norwalk, Suffield, and Glastonbury areas, Connecticut . fault, which offsets a littlethe portions of the trap sheet to the northwest and southeast. The!gorge of Farmington River at Tariffville was formed by deeperosion of a fault zone along which there was similar fault zone bears a little west of north. The block on the eastwas raised and moved soutliAvard so that the offset of the northpart of the ridge relative to the south part was to the east, PlateX, A, shows the offset to the east or left of the nearer or north partof the ridge as seen from a point a


Ground water in the Norwalk, Suffield, and Glastonbury areas, Connecticut . fault, which offsets a littlethe portions of the trap sheet to the northwest and southeast. The!gorge of Farmington River at Tariffville was formed by deeperosion of a fault zone along which there was similar fault zone bears a little west of north. The block on the eastwas raised and moved soutliAvard so that the offset of the northpart of the ridge relative to the south part was to the east, PlateX, A, shows the offset to the east or left of the nearer or north partof the ridge as seen from a point a mile north of Tariffville. Theminor faults produce offsets on a smaller scale but of similar char-acter. A section across East Granby and Suffieicl along the lineD-D on the map (PI. V) is shown in figure 18, and the relation ofthe ridges and the plain to the underlying formation is thereillustrated. ^ Davis, W. M., The Tiiassic formation cf Connecticut: U. S. Geol. Survey BigliteentliAnn. Kept, pt. 2, pi. 19, 1897. U. S. GEOLOGICAL SUKVKY WAlKll-SUriLV rAlKIt t70 ILATK X. <imm ^1^


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