This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1903 Excerpt: ...3 north, with the exception that in this latter region the overlying limestones have been entirely worn away several miles west of the escarpment face; because of this denudation the valleys west of the escarpment are somewhat deeper than are those further south which are similarly situated. In Township 3 north, the ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1903 Excerpt: ...3 north, with the exception that in this latter region the overlying limestones have been entirely worn away several miles west of the escarpment face; because of this denudation the valleys west of the escarpment are somewhat deeper than are those further south which are similarly situated. In Township 3 north, the Knobstone area is drained by streams leading northward into White River. The Knobstone plateau has been very perfectly dissected by these streams, which with their small tributaries from intricate dendritic systems of valleys, as is shown on the topographic sheet (PlatcII) in 3 north, 2, 3, 4 and 5 east. It will be noticed that these streams, after having cut through the overlying limestones, have in all cases quickly cut down to their present base levels of erosion, 'and that the main streams, especially Rush and Delaney creeks, flow through flat bottomed valleys. As their topography indicates, these are silted up valleys in which the alluvial filling is from 20 to 40 feet thick. This silting up has been brought about by a depression of the land from a former higher elevation, when the valleys were eroded more deeply than at present. With the depression of the surface the streams gradually became checked and the valleys filled. All of the main tributaries of East White River in southern Indiana flow through valleys that have been filled in this manner from 20 to 60 or 75 feet. The accompanying section (Fig. 13) shows this feature. - lS$mi--S u--=--'M Fig. 13. North-south section across Rush Creek Valley in 3 north, 3 east, Sections 5 and 8. The Central District (north of Township 3 north).--In the area north of 3 north, or more properly speaking, north of the Muscatatuck and East White rivers, the topography developed in the Knobstone area ..
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Add this copy of A Geologic and Topographic Section Across Southern to cart. $56.49, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2011 by Nabu Press.