177

Description of Core. Thickness Depth
feet. feet.
(Approximate).

Grey, massive, fine, even tuff, very dense and hard,

with thin coarser-grained beds, and a few

markings like belemnites...............+---- 200 1,157
Grey, massive, fine, even tuff, very similar to above,

but finer on the whole, some layers argillite-like.

Guptaiisintvasivess cesses eer e eee 150 1,307
Greenish and purplish, coarse, angular agglomerate,

fragments up to 3 inches, in a tuff matrix greatly

replated: by calcite. 7, SU se ee vere ee ees 100 1,407
Light grey, fine, massive tuff................2205- 33 1,440
Green, medium-grained, agglomerate or tufaceous

MNSONE iiss ch Ue ete 60 1,500

These beds are typical of the upper portion of the Maude
formation, and represent in part its transition to the Yakoun
formation.

Graham Island Coal and Timber Syndicate.

Bore-hole No. 1. Put down near the northeast corner post
sec. 4, tp. 7. Depth of hole, 400 feet (?). Davis shot drill
used.

The core of this hole consisted of greenish and purplish
agglomerates of the Yakoun formation, with many intrusive
andesite and dacite porphyrites of the Etheline formation.

Bore-hole No. 2. Put down near the south } post of sec.
4, tp. 7. Depth of hole, 390 feet. Davis shot drill used.

The core! for 15 feet consisted of dacite porphyry and the
rest of agglomerate with green matrix and red fragments or
occasionally red matrix and green porphyry fragments. The
rocks are veined with calcite and quartz. These agglomerates
belong to the Yakoun formation.

Bore-hole No. 3. Put down 19-75 chains west of east line
of sec. 36, tp. 9, and 1-97 chains south of east-west centre line
of sec. 36. Passes through the Haida formation of the Yakoun
basin into the Yakoun formation. Depth of hole, 860 feet.
Davis shot drill used. Size of core, 23 inches.

1 Description from notes of C. H. Clapp.