. Narrative of a journey to the shores of the Polar Sea, in the years 1819, 20, 21, and 22 [microform]. Scientific expeditions; Expéditions scientifiques. No. I.] CEOGNOSTICAL OBSERVATIONS. 501 transition series on Hill River, the other branch and the one through which our route lay. In the lower parts of Hill River the banks are composed nearly of the same materials as those in Hayes and Steel Rivers, but they rise more precipitously from the very narrow channel of the river to an elevation of nearly two hun- dred feet. Their outline, too, is more varied, being broken into conical emi- nences
. Narrative of a journey to the shores of the Polar Sea, in the years 1819, 20, 21, and 22 [microform]. Scientific expeditions; Expéditions scientifiques. No. I.] CEOGNOSTICAL OBSERVATIONS. 501 transition series on Hill River, the other branch and the one through which our route lay. In the lower parts of Hill River the banks are composed nearly of the same materials as those in Hayes and Steel Rivers, but they rise more precipitously from the very narrow channel of the river to an elevation of nearly two hun- dred feet. Their outline, too, is more varied, being broken into conical emi- nences by numerous ravines which open into the river at right angles. Many steep cliffs, sections of these eminences, and of course of a conical form, have their bases washed by the streams; one of the most remarkable is named the Sugar Loaf, The banks being exactly similar in form and constituent parts to those which occur on Lake Winipeg and the Saskatchawan on the confines of the limestone formation there, I am inclined to believe that this part of Hill River cuts the western boundary of the other limestone district, which has been spoken of as running parallel to the coast. We did not observe, however, any of the solid strata in the bed of the river, although the clay on the banks con- tained many imbedded fragments of the stone, as well as much calcareous matter intimately blended with it. /bout a mile below the Rock Portage, or ninety-nine miles from the sea, (including the windings of the river course) rocks in situ first occur. They consist of gneiss, and rise in the channel of the river from under the lofty clay banks which still continue. The gneiss formation appears to extend from this place to Lake Winipeg, and to contain subordinate beds and veins of granite, beds of hornblende, rock, and mica slate, which we shall enumerate in the order in which they occurred on our route. The general direction of the strata appears to be from NE to SW, but our o >portunities of obs
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Keywords: ., bookcentury1800, booksubjectscientificexpeditions, bookyear1823
