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754 MINERAL RESOURCES, 1918----PART I.
Gold.—The
combined mine production of gold in the southern Appalachian States in
1918 was $13,587, against $29,156 in 1917. Georgia led with $5,893;
Tennessee was next with $4,866; North Carolina, $1,631; Alabama, $797;
Virginia, $400. The gold produced in Tennessee was from copper ores of
the Ducktown district. The production of gold from 17 placers amounted
to $6,591. Copper ores mainly from Tennessee and Virginia yielded about
255 ounces of gold, and siliceous ores from Alabama and Georgia yielded
only 84 ounces in 1918.
Silver.—Copper ores in Tennessee and Virginia yielded 95,434 ounces of silver and siliceous ores and placer bullion only 44 ounces.
TEXAS.
Gold.—The total output of gold from Texas mines from 18S5 to the end of 1918 is given by Charles W. Henderson as $43,582.*
The
yield of gold has been very small and has been mainly a by-product. The
output of gold increased from $22 in 1917 to $25 in 1918.
Silver.—The total production of silver in Texas from 1885 to 1918, inclusive, has been 14,243,691 ounces, according to Henderson.1
The
mine production for 1918 was 576,565 fine ounces, against 595,789
ounces in 1917. The greater part of the silver continued to come from
the Presidio silver mine and cyanidation mill in the Shafter district,
Presidio County. The silver contained in copper ores shipped in 1918
amounted to 57 ounces, and that in lead ores to 6,943 ounces.
UTAH.
Gold.—The
total output of gold in Utah from 1864 to 1918, inclusive, is given by
V. C. Heikes, of the United States Geological Survey, as $96,068,503.3
The
mine production of gold decreased from $3,355,156 in 1917 to $2,949,170
in 1918. The largest part of the gold was contained in ores produced in
Salt Lake County, and amounted to $2,083,254. Juab County ranked next
with $628,593, against $843,609 in 1917. The Bingham district, with its
large output of copper and other ores, produced $2,056,005 in gold in
1918, and the Tintic district, partly in Juab County and partly in Utah
County, produced $678,952. The production of placer gold in 1918 was
only $1,368, and the output recovered by cyanidation and amalgamation
was about $4,200. The greater part of the Utah gold (53 per cent) was
derived from copper ores mainly mined in Salt Lake and Juab counties;
lead and lead-zinc ores contained 31 per cent.
Silver.—The total output of silver in Utah from 1864 to 1918, inclusive, has been 379,476,124 fine ounces, according to Heikes.2
The
mine production of silver in Utah in 1918 was 13,455,597 ounces, a
decrease of 23,536 ounces. The largest production was from Juab County,
credited with 4,994,806 ounces (mainly from lead ores), against
4,988,005 ounces in 1917. Salt Lake County had the next largest output,
3,022,638 ounces (from copper, lead, and lead-zinc ores), against
3,769,884 ounces in 1917. Of the Salt Lake
i U. S. Gcol. Survey Mineral Resources, 1918, pt. 1, p. 327. ! Idem, p. 369.
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