Ohio. Division of Geological Survey, Geological Survey of Ohio
The book Fourth Series, Bulletin, Issue 19 was written by author Ohio. Division of Geological Survey, Geological Survey of Ohio Here you can read free online of Fourth Series, Bulletin, Issue 19 book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Fourth Series, Bulletin, Issue 19 a good or bad book?
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This is generally the case south of the latitude of Lake Superior. The change is a gradual one, but in the main the continental glaciers were not accumulating but wasting within the limits of the United States. But the glacier is not to be thought of as invading the United States with a burden of detritus and depositing just enough at every stage to make up for the loss in carrying power. The glacier was not only depositing everywhere in Ohio, but everywhere taking up new burden. Therefore the ...detritus deposited at any given place consisted largely of material derived from no great distance. The proportions Fig. 45. — Diagram showing thinning of glacier and the effect on deposition, a — the glacier; 6 — zone in which the power of the moving ice is such that little material can accumulate beneath it; c — material lodged beneath the ice, becoming more and more abundant as the thickness and power of the ice diminish; d — material dropped from the ice by melting at its edge. from farther north are smaller in proportion to the distance.
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