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Books Bücher 1 - 5 von 5 in Gene vie ve and other Chester formations have proved most favorable. In the Illinois...
" Gene vie ve and other Chester formations have proved most favorable. In the Illinois mines nothing suggesting rearrangement of the ores and secondary enrichment coincident with degradation of the surface was observed. At the Empire mine carbonates gave... "
The Fluorspar Deposits of Southern Illinois - Seite 70
von Harry Foster Bain - 1905 - 75 Seiten
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Bulletin, Ausgaben 223-225

1904
...the country rock may be expected to have an important influence, and so far the Ste. Genevieve and Chester formations have proved most favorable. In...coincident with degradation of the surface was observed. The Fairview and Rosirlare mines are now working well below ground-water level, and neither increase...
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Report of Progress in the Geological Resurvey of the Cripple Creek District ...

Waldemar Lindgren, Frederick Leslie Ransome - 1904 - 36 Seiten
...have an important influence, and so far the Ste. Genevieve and other Chester formations have proveíl most favorable. In the Illinois mines nothing suggesting...surface was observed. At the Empire mine carbonates gave planto sulphides within the first hundred feet, and below that level no change was observed. In the...
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Contributions to Economic Geology, 1903

Samuel Franklin Emmons, Geological Survey (U.S.) - 1904 - 527 Seiten
...the country rock may be expected to have an important influence, and so far the Ste. Genevieve and Chester formations have proved most favorable. In...coincident with degradation of the surface was observed. The Fairview and Rosielare mines are now working well below ground-water level, and neither increase...
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Bulletin - United States Geological Survey, Ausgabe 225

Geological Survey (U.S.) - 1904
...the country rock may be expected to have an important influence, and so far the Ste. Genevieve and Chester formations have proved most favorable. In...coincident with degradation of the surface was observed. The Fairview and liosiclarc mines are now working well below ground-water level, and neither increase...
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Bulletin - United States Geological Survey, Ausgabe 255

Geological Survey (U.S.) - 1905
...in the country rock may be. expected to have an important influence, and so far the Ste. Genevieve and other Chester formations have proved most favorable....surface was observed. At the Empire mine carbonates gave placv to sulphides within the first hundred feet, and below that level no change was observed. In the...
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