Aeromagnetic and tectonic analysis of the Upper Mississippi Valley zinc-lead district
<p>No abstract available.</p>
Public-domain full text preserved in the Mountain Man Mining Library. Original source: pubs.usgs.gov.
Aeromagnetic and tectonic analysis of the Upper Mississippi Valley zinc-lead district Author: Heyl, Allen Van, King, Elizabeth R. Year: 1966 Category: Report abstract available.</p> Tags: usgs, zinc Wisconsin Upper Mississippi Source: https://pubs.usgs.gov/bul/1242a/plate-1.pdf