5 2 
ALASKA GEOLOGY 
strike being NE. The 
principal cleavage strikes 
somewhat east of north, 
and has a variable incli¬ 
nation, dipping 6o° to the 
west in the harder, more 
arenaceous beds, and be¬ 
ing nearly vertical in the 
more argillaceous. 
Southwest of the wharf 
at Kadiak village the black 
slates strike N 5 0 E and 
dip 8o° W to vertical. 
Twenty rods beyond the 
houses Terebellina is 
abundant. Farther south¬ 
east the slates alternate 
with beds of sandstone a 
foot thick, and strike N 
50° E, dipping 30° W. 
The cleavage is N 55 0 
W, dipping 45 0 SW. Be¬ 
yond are grey fine-grained 
sandstones, with included 
slate pebbles, and oval 
depressions one - fourth 
inch long from which 
concretions have been 
dissolved. The strike is 
N 15 0 W, changing to 
N 25 0 W; dip 70° W, 
changing to 90°. 
Dr. Dali says: 1 “ the 
1 Report on Coal and Lignite of 
Alaska; 17th Ann. Rep. U. S. Geol. 
Survey, Pt. 1, p. 872. 1896. 
