 Jefferson counties. A certain percentage of zinc is also found in the disseminated lead ore, the ore from one shaft being reported to run occasionally as high as 2 per cent of zinc for a week at a time. The zinc occurs 'more plentifully in the Leadwood-Flat...  Mineral Resources of the United States - Page 104by United States. Bureau of Mines - 1921Full view - About this book
 | United States. Bureau of Mines - Digital images - 1916 - 1090 pages
...upward, downward, or to the side, and from these cores the direction to drive, the heading is determined. The ore in the southeastern Missouri region is almost...mines, some 6 miles north of the Bonneterre district. A certain percentage of zinc is also found in the disseminated lead ore, the ore from one shaft being... | |
 | United States - 1911 - 632 pages
...southeast Missouri. The ore in this region is almost wholly lead, though a considerable deposit of zinc ore occurs at Valle Mines, some 6 miles north of the Bonneterre district, and furthermore copper, nickel, and cobalt ores occur with the lead in the vicinity of Fredericktown in... | |
 | United States. Bureau of Mines - Digital images - 1911 - 632 pages
...southeast Missouri. The ore in this region is almost wholly lead, though a considerable deposit of zinc ore occurs at Valle Mines, some 6 miles north of the Bonneterre district, and furthermore copper, nickel, and cobalt ores occur with the lead in the vicinity of Fredericktown in... | |
 | United States. Bureau of Mines - Digital images - 1919 - 970 pages
...separate chapter entitled " Silver, copper, lead, and zinc in the Central States in 1915," which can be obtained upon application to the Director, United...zinc silicate is mined in various parts of Washington ana Jefferson counties. A certain percentage of zinc is also found in the disseminated lead ore, the... | |
 | United States. Bureau of Mines - Digital images - 1921 - 1096 pages
...separate chapter entitled " Silver, copper, lead, and zinc in the Central States in 1915," which can be obtained upon application to the Director, United...ore, the ore from one shaft being reported to run occasionally as high as 2 per cent of zinc for a week at a time. The zinc occurs more plentifully in... | |
 | United States. Bureau of Mines - Digital images - 1917 - 1118 pages
...upward, downward, to the side, and from these cores the direction to drive the heading is determined. The ore in the southeastern Missouri region is almost...lead, although a considerable zinc deposit occurs at Vallc mines, some 6 miles north of the Bonneterre district. A certain percentage of zinc is also found... | |
 | United States. Bureau of Mines - Digital images - 1922 - 992 pages
...Wright counties were a few cars of galena and zinc silicate and carbonate. CENTRAL AND SOUTHEASTERN MISSOURI. The ore deposits of central and southeastern...ore, the ore from one shaft being reported to run occasionally as high as 2 per cent of zinc for a week at a time. The zinc occurs 'more plentifully... | |
 | United States. Bureau of Mines - Digital images - 1911 - 814 pages
...side, and from these cores the direction to drive the heading is determined. The ore in the southeast Missouri region is almost wholly lead, although a...mines, some 6 miles north of the Bonneterre district. A certain percentage of zinc is also found in the disseminated lead ore, the ore from one shaft being... | |
 | United States - 1912 - 1046 pages
...side, and from these cores the direction to drive the heading is determined. The ore in the southeast Missouri region is almost wholly lead, although a...mines, some 6 miles north of the Bonneterre district. A certain percentage of zinc is also found in the disseminated lead ore, the ore from one shaft being... | |
 | United States. Bureau of Mines - Digital images - 1913 - 1098 pages
...side, and from these cores the direction to drive the heading is determine* 1. The ore in the southeast Missouri region is almost wholly lead, although a...considerable zinc deposit occurs at Valle mines, some G miles north of the Bonneterro district. A certain percentage of zinc is also found in the disseminated... | |
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