Report of progress 1874-1889, A-Z .. . herethe hill descends sharply towards T. Geigers house, andN. 56° W. 65°, about 400 feet further south-west alongcrest. Saengef s Hill shows dips on its summit of S. 35° E. 60°and 300 feet south-east S. 32° E. 62°. Further down the south side, the anticlinal axis is wellmarked by two opposing dips IST. 80° W. and S. 30° E. 60°,the anticlinal quickly dying away afterwards in the lime-stones along the Manatawny. Stone Cave Hill^ the next proceeding en echelon south-east, is a short but prominent axis, very tightly pressed andshowing evidences of its closely
Report of progress 1874-1889, A-Z .. . herethe hill descends sharply towards T. Geigers house, andN. 56° W. 65°, about 400 feet further south-west alongcrest. Saengef s Hill shows dips on its summit of S. 35° E. 60°and 300 feet south-east S. 32° E. 62°. Further down the south side, the anticlinal axis is wellmarked by two opposing dips IST. 80° W. and S. 30° E. 60°,the anticlinal quickly dying away afterwards in the lime-stones along the Manatawny. Stone Cave Hill^ the next proceeding en echelon south-east, is a short but prominent axis, very tightly pressed andshowing evidences of its closely folded character in theStone Cave on the Earlville road. Cleavage aboundsthroughout this hill and is well displayed on the road, dip-ping almost due south 80°. The Potsdam itself dips on theroad N. 68° W. 35 and S. 70° E. 52° at the point where theanticlinal is cut through by the Manatawny. A little to thesouth of this, along road, there is an outcrop of alternate 2-i CEOL, SURVEY OF PA, 1882, REPORT D3, VOL, 2, PLATE 2,. POTSDAM SANDSTONE AREAS. D. 313 layers of qiiartzite and indurated shale or slate, all greatly-confused by cleavage, but probably dipping N. 70° W. 30°,whilst still further south, probably 200 feet, hard, compactquartzite dips S. 38° E. 65°-85°. Rising on the anticlinal from the Stone Cave, thePotsdam outcrops look like huge pulpit rocks, rising 60feet into the air and extending up the hill with a generalsouth-east dip of S. 60° E. 55° to 80°. If I have distinguished dip from cleavage correctly herethe exposure must be at least 100 feet thick. This anticlinal brings the Potsdam sandstone up on westside of Manatawny creek in Rabbit hill. Close to the creek there is an outcrop 40 feet wide, dip-ping N. 30° W. 55°, whilst on the summit there is an expos-ure of compact sandstone almost all quartz, of a yellow color,dipping S. 62° E. 75°, and forming a conspicuous ridge. The Long hill anticlinal carries a large amount of Pots-dam on its cr
Size: 1272px × 1963px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1, bookdecade1870, booksubjectcoal, booksubjectgeology