. Annual Reports of the Department of the Interior for the Fiscal Year Ended June 30, 1900--Twenty-First Annual Report of the United States Geological Society. rizontal section areproved to l)e really connected. This l)ody of ore is, therefore, essentially at the tophorizon of the Traders ore-bearing member just below the contact with the Brierslate. Scale: 1 inch equals 250 feet. Fig. 10, ^Menominee S])e(;ial Folio. Fi(i. 3. Horizontal section of the Loretto mine at the iirst level. The ore hererests upon the Traders slate, which constitutes a wide trough pitching to the a result of t
. Annual Reports of the Department of the Interior for the Fiscal Year Ended June 30, 1900--Twenty-First Annual Report of the United States Geological Society. rizontal section areproved to l)e really connected. This l)ody of ore is, therefore, essentially at the tophorizon of the Traders ore-bearing member just below the contact with the Brierslate. Scale: 1 inch equals 250 feet. Fig. 10, ^Menominee S])e(;ial Folio. Fi(i. 3. Horizontal section of the Loretto mine at the iirst level. The ore hererests upon the Traders slate, which constitutes a wide trough pitching to the a result of this pitch the high-grade ore, which reaches the rock surface, to theeast grades into lean ore and passes below lean iron-bearing formation. Scale: 1 inch equals 250 feet. Fig. 11, Menominee Special Folio. Fk;. 4. Vertical east-west longitudinal section of the Loretto mine, showing samerelations as fig. 3, and also that there is here a cross fold, thus forming a l)asinbetween the Traders slate and the Brier slate, which is largely filled with ore. Scale: 1 inch eciuals 250 feet. Fig. 13, Menominee Special I GEOLOGICAL SURVEY REPORT PART III North SHAFT t t SHAFT
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Keywords: ., bookauthorunitedst, bookcentury1900, bookdecade1900, bookyear1901
