AbstractsEarth & Environmental Science

In 1921, prospecting near the head waters of the York river in the interior of the Gaspe Peninsula,P.Q. led to the discovery of copper deposits. Since that time considerable geological work has been done in the vicinity of these copper showings. Noranda Mines Ltd. became interested in the economic possibilities of these deposits. This company financed a diamond drill program for the summer months of 1939 and 1940. In 1940, Dr. F.F. Osborne was employed by the Quebec Bureau of Mines to make a detailed examination of the property. Dr. Osborne found these deposits interesting for several reasons. [...] Metallic minerals are of the high temperature type. Most of the mineralization occurs on two adjoining mountains, Needle and Copper. The metallic minerals on Needle mountain differ in composition and concentration from those on Copper mountain. A problem of special interest arises. Dr. Osborne considered a polished section study desirable, in order to obtain information about the paragenesis of the metallic and associated gangue minerals, and the origin and character of the mineralizing solutions. He believed that an explanation for the contrasting mineralization could also be found. The writer was assigned to this problem. The laboratory work and writing of this thesis was done in the Geology Department of McGill University, under the direction of Dr. F.F. Osborne, whose guidance and advice is gratefully acknowledged. [...]