ELIZABETHTOWX AND PORT HENRY QUADRANGLES i ^^ 



and a tramway was built across its northern end which passed 

 eastward descending some 700 feet in about a mile and a half to 

 the first highway in \\>stport. 



The deposit is lean and lies between acidic and basic gneisses 

 very like the Mineville succession, if not identical with it. So far 

 as one could judge, subject to local attraction, the strike was 

 n. 35° w. true, and the dip 60° west. The section of the large and 

 more northerly pit is as. follows: 



1 Hanging wall, typical, green massive syenite. 



2 Lean mixture of magnetite and quartz, 12-15 feet thick. This 



is illustrated in figure 29 drawn from the microscopic 

 slide. This association is unusual, and has not been else- 

 where seen. 



3 Still leaner mixture of the same general character, 20 feet. 



4 Compact, feldspathic rock, 15 feet. 



5 Lean mixture of magnetite and quartz, extending under cover. 



The open cut was 75 to 100 feet long, 50 feet across, and had a 

 wall about 25 feet high at the back. To the south, on the old road 

 to Nichols pond, is another pit 15 x 15 feet. Hornblendic gneisses, 

 presumably syenitic are shown in the foot wall, but the hanging was 

 concealed. 



Professor Smock states that the ore was reported lean and titan- 

 iferous, but the association with quartz would make the last state- 

 ment unlikely. Professor Smock did not visit the mine. The lean- 

 ness and remoteness are sufficient explanations for the cessation 

 of operations. 



Gates and Noble mines. Along the easterly front of the ridge 

 which lies between Lincoln pond and New Russia there are several 

 abandoned pits which were formerly operated to supply the forge 

 at New Russia. Professor Smock in Bulletin 7, page 34, places 

 the Gates mine on lot No. 138 of the Iron Ore tract. No work 

 has been done since 1882. Professor Smock states, '' The ore 

 has been opened a length of about 20 rods, and in one shaft to 

 a depth of about 140 feet, and has been found to range from 

 2 to 16 feet in width. The strike is north-northeast and the 

 dip of the ore bed 60° westerly. The ore is fine crystalline and 

 averages about 50 per cent of metallic iron. Northwest of the 

 above described opening, and in the lower ground the Vulcan Iron 

 Company of Boston, opened a vein of ore, which was 12-20 feet 

 wide. The ore was remarkably fine grained. The greatest depth 

 reached was 70 feet. The ore from these mines was used mostly 



