308 H. M. AMI — KNOYDAUT FORMATION OF NOVA SCOTIA 



Feet. Inches 



39. Red, coherent shales, forming a higher fall 14 



40. Red, argillaceous shale, containing greenish blotches, harder 



layers, and small nodules ; to the water level of the lower 



side of the culvert at the shore side 31 



41. Red, argillaceous rock, with green layers and blotches, in cliffs 



at the road, dipping 235 degrees angle 32 degrees 30 



42. Red and green mottled, argillaceous shale, principally red 15 



43. More coherent, red, siliceous and argillaceous rock, with a few 



fish remains , 10 



44. Greenish and mottled lenticular limestone from which Doctor Ami 



obtained the fish remains ^eraspis, etcetera, first sent to Doctor 

 Woodward (no. 6) 6 



45. Red, argillaceous and siliceous rock with green bands and 



blotches 20 



46. Reddish, altered rock at the level of the road under the school- 



house, not well seen 20 



47. Greenish, argillaceous flags and shales (no. 7) 4 



48. Red, argillaceous shale 3 



49. Red and greenish sandstone in two layers 4 



50. Red, argillaceous shales, with layers of more coherent rock, some 



of which contain rootlets 17 



51. Measures concealed 13 6 



52. Bright red, soft, argillaceous shale; to the first bridge where the 



brook crosses to the eastward 4 



53. Red, argillaceous shale, with a few more coherent layers 31 



54. Greenish, somewhat massive, argillaceous and arenaceous rock 



(no. 8) ; at the second bridge where the brook runs to the 

 • westward. The dip now changed to 80 degrees, and this layer 

 is concealed for some distance, but again appears to return to 

 the road farther south. Assuming that this is the case, the 

 section is continued beyond as follows 11 



55. Red, argillaceous shale, with coherent layers 18 



56. Greenish and dark-gray crumbly, argillaceous rock 2 



57. Greenish and gray, argillaceous rock, the upper part greatly 



altered 4 



58. Trap 4 



59. 'Red, argillaceous shale, greatly altered 6 



60. Measures concealed dip 250 degrees angle 23 degrees; to a little 



brook from the eastward 5 



61. Red, argillaceous shale and thin flags, in which fish remains 



were found (no. 9) 14 



62. Red, argillaceous shale and flags 43 



63. Trap, thickness undefined, perhaps 120 



This trap begins about 550 yards above the main road. In 

 the brook west of the road there is a green flinty shale which 

 yielded no fossils. 



Total thickness of the stratified rocks in the section 683 3 



