48 



9 a.m. — No. i mine, near the brow of the hill, is worked 

 largely as an open pit where magnetite more or less inter- 

 banded with hornblende and green epidote occurs, and a 

 fault plane forms a slickensided wall on the west side. 

 Granite occurs as dikes in greenstone and green schist near 

 the ore, but does not actually touch it. 



In a large stripping a quarter of a mile west granite 

 dikes are seen penetrating the ore or running parallel to its 

 banding. 



A walk of a mile, mostly over drift deposits but passing 

 some banded Keewatin schist, leads to the iron dam, or No. 

 2 mine, where the ore is very different, consisting of inter- 

 banded silica and magnetite without hornblende or epidote. 

 This ore is leaner, containing only 36 per cent, of iron. 

 Where the iron formation crosses the Vermilion river inter- 

 esting crumplings and foldings of the banded ore may be 

 seen. 



Half a mile farther north, near the new concentrator, 

 a stripping shows banded ore cut by dikes of granite and 

 by thin seams of epidote. A variety of interesting small 

 scale structural features can be seen here, such as anti- 

 clines and synclines and faults of different dimensions. 



Officers of the Moose Mountain iron mine will take the 

 party through the mill and explain the methods of magnetic 

 separation and briquetting, by which the 36 per cent, ore 

 furnishes a high-grade product. Those who wish may visit 

 a saw mill at work near the village. 



Afternoon. — Leave for Sudbury. If time permits a stop 

 may be made at mile 278 to observe a good contact of the 

 micropegmatite with the Trout lake conglomerate. 



Towards evening the smelter of the Mond Nickel 

 Company at Coniston will be visited, giving an opportunity 

 to see the latest and one of the most complete smelting 

 plants in Canada. 



Arrive at Sudbury in the evening. 



