The Huronian Question.—Coleman. 329 
“a strip of rocks along the north shore of Thunder-bay, which 
are most plainly part of the Animikie slates,” in the Huronian. 
It is indeed difficult to account for such a statement, for there 
is actually a strip of steeply tilted green schist along that shore 
which Logan properly called Huronian, and resting on it 
are remnants of Animikie, proving in the most conclusive way 
the discordance of the two series. Irving apparently failed 
to see these schists, along which I have walked for miles,* 
and his statement regarding Logan’s position is clearly due to 
his own lack of local knowledge. He was not aware that 
typical examples of both Huronian and Animikie occur along 
that coast, the more prominent points, which no doubt, specially 
attracted his attention, being Animikie. 
That Irving confused two totally different formations in 
the Port Arthur region is evident from several other state- 
ments. He mentions the “arenaceous flat lying ferruginous 
beds along the Dawson road immediately back of Port Ar- 
thur” and in the next sentences includes with them the con- 
torted and brecciated banded jaspers of the Lower Huronian 
found in the same general region.+ If he had done a little 
more detailed work he might have found convincing evidence 
of an immense break between the two. The banded siliceous 
rocks of the iron range occur in typical form near Kaministi- 
quia station on the Canadian Pacific railway and in Coumee 
township and at other points to the south and southwest. 
They have a steep dip, are often crumpled and folded and 
brecciated and are as different as possible from tie flat lying 
cherts etc., sometimes containing iron ore, at the base of the 
neighboring Animikie a few miles to the south. These iron 
bearing siliceous rocks are practically continuous with the 
Mattawin and other iron ranges connecting with the Ver- 
niilion range in Minnesota, which professor Van Hise makes 
Archean, and the schists with which they are associated may 
be found at Kakebeka not far off still steeply tilted, underlying 
horizontal cherty dolomyte of the Animikie. 
The improbability that these folded, tilted, schistose rocks 
should belong with the flat unmetamorphosed Animikie slates 
seems to have troubled Irving, however; for he says “‘accept- 
* Bur. Mines, Ont., 1900, p. 149. 
7 U. S. Geol. Sur., 5th An. Rep., p. 204. 
