Bulletin - Geological Survey, Issue 33

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Geological Survey., 1918 - Geology
 

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Page iv - Governor and President of the Advisory Board of the Geological Survey of Georgia. SIR: I have the honor to transmit herewith the report of Mr.
Page 7 - The discovery and exploration of the Georgia pyrite veins started with the period of gold mining, about 1830. The early gold miners, however, desired only oxidized ores, and as it was found that the deposits of pure pyrite carry little or no gold, and the gold-bearing veins are largely quartz with relatively small amounts of pyrite, little work was done on the larger pyrite deposits. With the discovery of the Ducktown copper deposits in the late forties a period of extensive prospecting commenced,...
Page 21 - Periods of quiescence and uplift with warping caused the formation and dissection of several peneplains, thus controlling the present topography, but the metamorphic effects recorded in the rocks are slight. The most important event was the formation, in pre-Cretaceous time, of the Cumberland peneplain, whose remnants now make up the Piedmont Plateau: and the subsequent uplift and dissection of this plain. PYRITE DEPOSITS TYPES OF DEPOSITS The pyrite deposits of Georgia show great variations in character...
Page iii - Secretary of State HON. WJ SPEER State Treasurer HON. WA WRIGHT Comptroller-General HON. CLIFFORD WALKER Attorney-General HON. JJ BROWN Commissioner of Agriculture HON. ML BRITTAIN .. Commissioner...
Page 7 - Sicilian sulphur rose from $22.00 to $36.00 per ton, and many acid plants were equipped to burn pyrite, but only lump burners were used, and the Spanish ore was imported at such a low price that there was little incentive for developing domestic mines. The first really successful pyrite mine in Georgia was the Villa Rica mine of the Sulphur Mining & Railroad Company, which was opened in 1899 and worked almost continuously until 1917.
Page 222 - Jones2, and Weed3. It was worked for gold from 1852 to 1861 and from 1880 to 1884, when it was known as the Magruder mine. The most extensive work was done by the Seminole Mining Company between 1899 and 1908, during which period it was considered primarily a copper mine. In August, 1917, the property was purchased by the Georgia Copper Company, MN Whittaker, Lincolnton, Georgia, president. In May, 1918, the work of dewatering was going on, boilers, hoist, and compressor were installed, and the machinery,...
Page 5 - ... the most reliable barometer of general economic and commercial conditions. Under normal prewar conditions over two-thirds of the sulphuric acid produced was used in the manufacture of fertilizers. Under war conditions there is an enormously increased demand since the acid is used in large quantities in the production of practically all high explosives.
Page 4 - The production of pyrite in the United States in 1916, the latest year for which complete statistics are available, was as follows: Pyrites produced in the United States in 19161 State Quantity (long tons) California 145,762 Illinois 20,482 Indiana 772 Ohio 15,551 Virginia 148,502 Other states a 94,487 a Includes Georgia, Missouri, New York, Pennsylvania, South Carolina, South Dakota, Tennessee, and Wisconsin. Production and imports since 1910 have been as follows: Pyrites produced and imported into...
Page 180 - SW. and King, FP. A preliminary report on a part of the gold deposits of Georgia: Geol. Survey of Ga. Bull. 4-A, pp.
Page 11 - Canada, where it is said that "under the influence of invading granite, limestone in some places has been changed into an amphibolite, practically indistinguishable from that produced by the dynamic alteration of intrusive bodies of gabbro found in the same district."1 The age of the Roan gneiss is almost as great as that of the Carolina gneiss, since both have undergone about the same amount of metamorphism. The...

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