A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Investigation of Royal Princess zinc-lead deposit, Jo Daviess county, Ill
Bureau put down five inclined diamond drill holes totaling 3100 ft of bore to test for possible eastward extension of Royal Princess ore deposit; history and production; deposits have been described in various publications of U S Geol Survey and Ill Geol Survey; sample data and analyses.
Investigation of Royal Princess zinc-lead deposit, Jo Daviess county, Ill
Bureau put down five inclined diamond drill holes totaling 3100 ft of bore to test for possible eastward extension of Royal Princess ore deposit; history and production; deposits have been described in various publications of U S Geol Survey and Ill Geol Survey; sample data and analyses.
Investigation of Royal Princess zinc-lead deposit, Jo Daviess county, Ill
U S Bur Mines -- Report Investigations
Holt, S.P. (author)
1948
13 pages
Supp Plates, Bibliography
Report
English
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