QUARRIES IN YORK COUNTY. 
177 
Rock structure: The sheets, up to 12 feet thick, are crossed by 
joints striking N. 50° E., and dipping 55° NW., which recur at 
intervals of 2 to 20 feet, and by a set striking N. 45° W., and dipping 
60° SW., which recur at intervals of 2 to 10 feet and over. 
The plant consists of 5 derricks and 1 engine. 
Transportation involves cartage of 1 mile to railroad. 
The product is used for monuments, etc. 
The Gowen Emmons quarry is in Biddeford city, at 17 Granite 
street. Operator, Gowen Emmons & Co., 17 Granite street, Bidde- 
ford. 
The granite (specimen 128, a) is a biotite granite of general light- 
gray shade, with conspicuous smoky quartz and slightly bluish 
white feldspar, and of coarse even-grained texture, with feldspars 
up to three-fourths inch and biotite under one-fifth inch. It is 
Fig. 38. — Structure at the Gowen Emmons quarry, Biddeford. 
identical with that of the Ricker quarry (specimen 129, a), described 
above. In the sheets that lie nearer the surface the feldspar has lost 
its bluish tint and is slightly grayish or greenish, which has the 
effect of diminishing the contrasts. Specimen 128, a is not so brilliant 
as 129, a. 
The quarry, opened about 1865, consists of 2 openings, an old one 
200 feet from northeast to southwest, by 100 feet across, and from 30 
to 70 feet deep, and a new one, 250 feet from northeast to southwest, 
by 200 across, and from 10 to 60 feet in depth. There is no drainage 
problem. 
Rock structure: The sheets, from 1 to 12 feet 6 inches thick, 
increasing in thickness downward, undulate horizontal^. The joint 
courses are shown in fig. 38. A dips 55° NW., and recurs at inter- 
vals of 2 to 20 feet ; B dips 70° S., and occurs exceptionally ; C dips 
3495— Bull. 313—07 12 
