Heavy mineral ratios of Sangamon weathering profiles in Illinois.

Bibliographic Details
Main Author:	Brophy, John Allen, 1924-
Format:	Book
Language:	English
Published:	Urbana, [publisher not identified] ; 1959.
Series:	Circular (Illinois State Geological Survey) ; 273.
Subjects:	Weathering. Mineralogy > Illinois. Soils > Analysis.

Description
Physical Description:	22 pages : illustrations
Bibliography:	Bibliography: page 10.