Report On the Fossil Iron Ores of Georgia
Report On the Fossil Iron Ores of Georgia
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Up to that date it was estimated that 5, 000 tons of ore had been mined. The output then 88 THE FOSSIL IRON ORE DEPOSITS OF GEORGIA being about six cars of twenty-five tons each per week. The greater part of the ore mined consisted of soft ore, less than one-fifth being hard. The method of mining adopted in raising the ore is usually by stripping or by open cuts; though at some points where the ore dips at a high angle, underground work is also successfully carried on. The ore which occurs only... in one workable bed has a thickness varying from thirty to thirty-two inches. The character of the ore is shown by the following analysis, made by Dr. Edgar Everhart, Chemist of the Geological Survey : Hygroscopic water o . 67 Combined water o . 83 Ferrous oxide ^ o. 56 Ferric oxide 65 . 63 Manganous oxide o . 98 Alumina o . 20 Lime 1 1 . 56 Magnesia . . O . 92 Silica 9 .. 07 Sulphur o . 1 1 Phosphorus pentoxide 97 Carbon dioxide 9 . 04 Total 100 . 54 Metallic iron . 46 37 Phosphorus o . 423 'This is an oolitic soft ore quite free from clay.
What to read after Report On the Fossil Iron Ores of Georgia?
You can find similar books in the "Read Also" column, or choose other free books by S W Samuel Washington Mccallie to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Up to that date it was estimated that 5, 000 tons of ore had been mined. The output then 88 THE FOSSIL IRON ORE DEPOSITS OF GEORGIA being about six cars of twenty-five tons each per week. The greater part of the ore mined consisted of soft ore, less than one-fifth being hard. The method of mining adopted in raising the ore is usually by stripping or by open cuts; though at some points where the ore dips at a high angle, underground work is also successfully carried on. The ore which occurs only... in one workable bed has a thickness varying from thirty to thirty-two inches. The character of the ore is shown by the following analysis, made by Dr. Edgar Everhart, Chemist of the Geological Survey : Hygroscopic water o . 67 Combined water o . 83 Ferrous oxide ^ o. 56 Ferric oxide 65 . 63 Manganous oxide o . 98 Alumina o . 20 Lime 1 1 . 56 Magnesia . . O . 92 Silica 9 .. 07 Sulphur o . 1 1 Phosphorus pentoxide 97 Carbon dioxide 9 . 04 Total 100 . 54 Metallic iron . 46 37 Phosphorus o . 423 'This is an oolitic soft ore quite free from clay.
What to read after Report On the Fossil Iron Ores of Georgia?
You can find similar books in the "Read Also" column, or choose other free books by S W Samuel Washington Mccallie to read onlineMoreLess
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