. Ontario Sessional Papers, 1914, nces in the townshipof Hutton and northwest of it. Sudburian rocks occur also on a fairly large scale near Whiskey lake, twenty milesnorth of Spanish river and separated from the southern rocks of the series by a wideband of Laurentian.^ To the northwest of the Sudbury region there is, so far as known, a long intervalof Laurentian granite and gneiss before rocks of Sudhurian age are encountered. Onehundred and fifty miles away, at Dore river in the Michipicoten district, schist con-glomerate containing pebbles of Keewatin iron range rocks and caught wi
. Ontario Sessional Papers, 1914, nces in the townshipof Hutton and northwest of it. Sudburian rocks occur also on a fairly large scale near Whiskey lake, twenty milesnorth of Spanish river and separated from the southern rocks of the series by a wideband of Laurentian.^ To the northwest of the Sudbury region there is, so far as known, a long intervalof Laurentian granite and gneiss before rocks of Sudhurian age are encountered. Onehundred and fifty miles away, at Dore river in the Michipicoten district, schist con-glomerate containing pebbles of Keewatin iron range rocks and caught with the Keewatinin synclines between iDatholiths of the Laurentian extend along the shore of LakeSuperior for fourteen miles and then hend north and fin-ally west with a length of morethan thirty miles. The Dore conglomerate was called Huronian by Logan, but the evi-dence given in former pages, showing that the typical Huronian is later than theLaurentian, makes it necessary to place the Dore rocks in the next lower series, theSudburian.^. Conglomerate, Timiskaming Series, Porcupine Seventy miles farther northwest, at Heron bay on the north shore of lake Superior,there is a similar band of conglomerate older than the Laurentian;^ and on the Slateislands, south of Jackfish bay, sohist conglomerate containing jasper pebbles is inter-folded with the band of iron formation which supplied them. It is older than theLaurentian uplift, but younger than the Keewatin and hence of Sudburian age.^° On the east shore of Lake Nipigon at Poplar lodge, sixty miles northwest of Jack-fish, a band of pre-Laurentian conglomerate with jasper pebbles has been followed fifteenmiles, parallel to the iron ranges of the region. It is associated with phyllite and arkose,but not quartzite, and has a width in places of a third of a mile.^ E. S. Moore has foundsimilar rocks near the Onaman iron range farther to the and Vol. XIV, J. M. 32 Bur. Mines, Vol. XXI. Part I, pp. 146. etc. 3« Geol. Can., 1S
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