. The Canadian field-naturalist. 36 The Canadian Field-Naturalist Vol. 70, No. 1, 1956 GLOUCESTER FAULT Distance: Barnhart quarry to Gloucester fault and Morrisburg road intersec- tion 8 miles. Return to Billings Bridge and drive down the Morrisburg Highway. Near Leitrim the Highway and the scarp to the west are seen to converge. A little south of Leitrim the road descends. a) The scarp, its outline softened by a covering of later unconsolidated debris, has crossed the road and continues to the southeast. In front is a hill with a valley between you and it. Beneath Leitrim and the road south o
. The Canadian field-naturalist. 36 The Canadian Field-Naturalist Vol. 70, No. 1, 1956 GLOUCESTER FAULT Distance: Barnhart quarry to Gloucester fault and Morrisburg road intersec- tion 8 miles. Return to Billings Bridge and drive down the Morrisburg Highway. Near Leitrim the Highway and the scarp to the west are seen to converge. A little south of Leitrim the road descends. a) The scarp, its outline softened by a covering of later unconsolidated debris, has crossed the road and continues to the southeast. In front is a hill with a valley between you and it. Beneath Leitrim and the road south of it to the slope lie the sediments of the fifth invasion, though the beds are somewhat higher than those at the Barnhart quarry. The hill across the valley is composed of the upper beds of the rocks of the first invasion. A creek runs through the valley and also reveals rocks of the first invasion. The Gloucester fault (Fig. 12) has crossed the I I I I I I I . I , I I I I ' \ / —. -x\'\ N / , /.' //v^ Fig. 12. Gloucester Fault (Castor River bridge, 2 miles west of Russell) Highway between the creek in the valley and the slope south of Leitrim. The down-faulted block in this vicinity has a displacement of 1800 to 2000 feet. This is the continuation of the same Gloucester fault that crosses Carling Avenue at the Experimental Farm. BRIDGE CROSSING NORTH BRANCH OF CASTOR RIVER Distance: Gloucester fault to North Branch of Castor River 5 miles. Continue south on the Morrisburg road to the turn to Metcalfe. Pass through the village and stop where a north-south road has a little bridge over the North. 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 Ottawa Field-Naturalists' Club. Ottawa, Ottawa Field-Naturalists' Club
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