The limits of these masses are exceedingly difficult to define, owing to the fact that they are associated with other Keewatin rock and basic forms of the post-Huronian diabase, to which it presents considerable resemblance. The asbestos actually seen is probably too short and small in amount to be valuable, but the high commercial value of this material renders delimitation of the wehrlite masses advisable. Asbestos of very good quality has been found by Mr. George Rahn in the vicinity of Sinclair mountain, so that this mineral may be one of the district’s latent resources.
CANADA
DEPARTMENT OF MINES
GEOLOGICAL SURVEY BRANCH
Hon. W. Templeman, Minister; A. P. Low, LL.D., Deputy Minister;
R. W. Brock, Director.
SELECTED LIST OF REPORTS AND MAPS
(SINCE 1885)
OF SPECIAL ECONOMIC INTEREST
PUBLISHED BY
THE GEOLOGICAL SURVEY BRANCH