72

than these beds. Some of them are found in folded strata, and
it seems probable, therefore, that they were intruded before the
folding took place. Others are faulted. This evidence although

Scele of feet

er
Dike 1s vertical
Geological Survey, Canada.

Figure 9. Irregular andesite dyke cutting shaly sandstones on beach west
of Haida point, illustrating also the baking of the sediments.

not altogether satisfactory, indicates that the intrusives are not
very much younger than the Upper Cretaceous. They are
nowhere found cutting the Masset or Skonun formations and,