Ogishhe Conglomerate. — Grant. 7 
fisher (Ogishke Muncie) lakes belong evidentl}' to the A'errailiou 
lake band."* 
Prof. C. R. Van Hise agrees with professor Irving in plac- 
ing the Ogishke conglomerate as the equivalent of part of the 
Animike and in separating it from the Keewatin or that part 
of it which he terms the lower Vermilion, meaning by this the 
iron-bearing series of the Vermilion lake region.! He regards 
the conglomerate as a newer formation folded in with the older 
rocks of his lower Vermilion. + 
Dr. A. C. Lawson was the first to show conclusively that the 
Ogishke conglomerate is much older than the Animike and 
is separated from it by an enormous structural and time 
break. ^ 
The opinions of the more noted geologists, who have recently 
worked in this region, having been given in outline, we will now 
proceed to a brief consideration of the relations of the Ogishke 
conglomerate to the rocks above and below it. This will be 
given under three heads: — (1) Relation of the Animike to the 
Saganaga granite, (2) Relation of the Ogishke conglomerate to 
the Saganaga granite, (3) Relation of the Ogishke conglomerate 
to the Keewatin. 
Relation of the Anhnihc to the iSagaiieiffd granite. On the 
north side of Glunflint lake the Animike is seen in contact with an 
underlying series of schists and granite. This granite is known 
as the Saganaga granite from the fact that the lake of that name 
lies almost wholly within its limits. || Now the almost horizontal 
Animike beds rest, in a practicall}' undisturbed condition, on the 
truncated edges of these schists, which stand nearly vertical. 
And they (the Animike strata) also lie upon the granite perfectly 
unconformable, fitting into the hollows of the eroded surface. 
This unconformity of the Animike on the schists and granite has 
*Ibid., p. 208. 
tAn attempt to harmonize some apparently conflicting views of lake 
Superior stratigraphy, Amer. Jour. Sci., iii, vol. xli, pp. 117-187, Feb, 
1891. 
Jlbid., pp. 122, 124. 
§Lake Superior stratigraphy, Amej{. Geologist, vol. vii, pp. 320-327. 
May, 1891; especially p. 324. 
For a fuller account of tliis liranite area see: 
A. Winchell, Geol. and Nat. Hist. Survey of Minn., 16th (1887) Ann. 
Kept., pp. 211-226, 380-384. H, V. Winchell, Geological age of the 
Saganaga syenite, Amer. Jour. Sci., iii, vol. xi,i, pp. 386-390, May, 1891. 
