Birthday mine (Wootan mine; Wootan and McCown mine), Bottle Creek Mining District, Humboldt County, Nevada, USAi

Regional Level Types
Birthday mine (Wootan mine; Wootan and McCown mine)	Mine
Bottle Creek Mining District	Mining District
Humboldt County	County
Nevada	State
USA	Country

Sec 18 T40N R33E
Structure: Major North-Trending, Steep-Dipping Faults In Area. ; Reg.Trends: Nne Shearing Parallel To Dike Wall; Faults Offset Dike

Alteration: Intense: Feldspars To Clay; Leached Ferromag'S

Tectonics: Basin And Range

Deposit: Ore emplacement occurs along faults in a diabase dike; scossa mine (red ore no 1) located on north end of this dike discovered in 1936 by d.j. Wootan, although ore was not located until 1938. A 2-tube retort was built in 1938, to which 2 more tubes were added in 1939. The claim was abandoned shortly thereafter. Diabase is so thorougly altered, it can be cut with a pick. The mineralized dike is less than 10 feet wide and is offset by numerous faults, with small displacement. Several lessees worked the property from 1939 to 1943 and the property was idle from 1943 to at least 1956. Development consists of 3 inclined shafts, 50 ft, 50 ft and 100 ft. Deep, plus about 400 ft of underground workings. ; info.src : 1 pub lit

Deposit type: Hot-spring Hg

Development: 2 retorts

Geology: Ore bodies most abundant where dike was most-faulted. The largest ore shoot was stoped for 32 ft. Along the drift from a block 3-4 ft by 6-12 ft in cross-section. The ore mined was high-grade; up to 60 pounds hg/ton. The ore minerals fill vesicles and fractures in the diabase, and locally impregnate the diabase and adjacent tuffs ; geol.desc: faulted diabase dike cuts basalt and tuff

Rock formation(s): Diabase Dikes;Basalt
Tuff And Conglomerate


Ore(s): Pre-Ore Faulting & Fracturing Of Diabase Host Rock

Other Databases

Link to USGS MRDS:	10040314

Other Regions, Features and Areas containing this locality

References