. Studies in natural history. Natural history; Natural history. Fig. 31. Blcck diagram showing the courses of the streams in a final stage of stream adjt,strrent in a first of erosion. Now the present course of the Mississippi river in early maturity of the present cycle of valley development is al- most exactly what would be expected if it were determined by two streams flowing in opposite directions from the crest of the arch, the south-flowing stream having captured the north-flowing one, as outlined above (Fig. 32). North. Fig 32. Block diagram showing roughly the course of the Missi
. Studies in natural history. Natural history; Natural history. Fig. 31. Blcck diagram showing the courses of the streams in a final stage of stream adjt,strrent in a first of erosion. Now the present course of the Mississippi river in early maturity of the present cycle of valley development is al- most exactly what would be expected if it were determined by two streams flowing in opposite directions from the crest of the arch, the south-flowing stream having captured the north-flowing one, as outlined above (Fig. 32). North. Fig 32. Block diagram showing roughly the course of the Mississippi river in its h«™nrW 'W^a' ThViver. 1S antecfdent in the sa™ sense thS the Susque! hanna river m the Appalachians is antecedent. q of the axis of the arch, between Minneapolis and La Crosse, the river flows in the general direction, S 51°E, which is an angle of 164° with the average direction of dip of the strata. The river not only does not flow in the direction of the dip but it does not flow parallel with the strike. Its average direction lacks but 16° of being opposite to the dip and to. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original University of Iowa; State University of Iowa; Making of America Project. Iowa City, Ia
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectnaturalhistory, booky
