Geochemical prospecting in the zinc-lead district of northwestern Illinois.

Bibliographic Details
Main Author:	Bradbury, James C.
Format:	Book
Language:	English
Published:	Urbana, [publisher not identified] ; 1955.
Series:	Report of investigations (Illinois State Geological Survey) ; no. 179.
Subjects:	Zinc mines and mining > Illinois. Lead mines and mining > Illinois. Geochemical prospecting.

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