A Seismic Refraction Survey of the Lower Illinois Valley Bottomlands (Classic Reprint)

$A Seismic Refraction Survey of the Lower Illinois Valley Bottomlands (Classic Reprint) Business & Technology$

A Seismic Refraction Survey of the Lower Illinois Valley Bottomlands (Classic Reprint)

Name: A Seismic Refraction Survey of the Lower Illinois Valley Bottomlands (Classic Reprint)
Brand: FB&C LTD
Availability: OutOfStock
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By Heigold, Paul C.

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Description

Excerpt from A Seismic Refraction Survey of the Lower Illinois Valley Bottomlands<br/><br/>A seismic refraction survey of the lower Illinois Valley bottomlands was conducted to supplement the sparse outcrop data and borehole data available for the area. Results of the survey indicate that unconsolidated sedi ments up to 170 feet thick cover a bedrock surface whose configuration is determined mainly by bedrock lithology. In places where weak, easily eroded rocks have been re moved downstream from overlying, erosion-resistant rocks, sizable variations in the declivity of the bedrock surface have resulted. The topography that was produced has been preserved by subsequent erosion. The anomalous gradients on the bedrock surface may be the result of normal fluvial processes, but their youthful appearance and preservation may have been caused by more complex erosional and depositional processes associated with glaciation during the Pleistocene Epoch.

Product details

Number of Pages:: 30
Release Date:: 2018-04-29
Publication Date:: 2018-04-29
Publisher:: FB&C LTD
Languages:: Published: English, Original: English
ISBN10:: 0366303910
Weight:: 200 g

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