Churchill County Nevada Gold Production |
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WONDER DISTRICT
The Wonder district is on the west slope of the Clan Alpine Range in east Churchill County, 55 miles east of Fallon.
The initial gold discoveries were made in 1906, and a rush began immediately (Vanderburg, 1940, p. 54-57). The Nevada Wonder mine soon became the leading producer, a position it never relinquished. The boom was short lived, and after 1919 operations declined to small-scale activities by lessees.
From 1907 through 1959 the district produced 73,890 ounces of gold which was derived from ores rich in silver. The gold-to-silver ratio was 1 to 94. Minor amounts of copper and lead were also produced.
The following description of the geology is summarized from Burgess (1917). The area is underlain by Tertiary rhyolite, dacite, andesite, and basalt. The oldest of these, the Wonder Rhyolite, contains the ore-bearing veins, grouped near small intrusives in the rhyolite. There are many small veins in the district, but only the Nevada Wonder has been productive. The vein is partly on the contact between the Wonder Rhyolite and an intrusive body of dacite.
Silver occurs in the form of argentite and the halogen salts embolite, iodobromite, and iodyrite. The gold is partly included in argentite and is partly free.
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