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(This photograph is on the website created before FY-04!!) Barren zone of strong fracturing in quartzite in main Ontario zone, 1,500-foot level Ontario mine, looking northeast. Summit County, Utah. Circa 1904. Plate 30-B in U.S. Geological Survey. Professional paper 77. 1912.
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Argonaut open cut in auriferous bench gravels; view is south-southeast up Bingham Canyon. Salt Lake County, Utah. 1902. Plate 49-A in U.S. Geological Survey. Professional paper 38. 1905.
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Head of big stope first set below 900 feet. Wall of galena in gash vein, Silver King mine. Park City district, Summit County, Utah. 1905.
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Cliffs of nearly vertical Bingham quartzite with talus slope, south side of Bingham Canyon, opposite mouth of Dry Fork. Salt Lake County, Utah. 1900, plate 5 in U.S. Geological Survey. Professional paper 38. 1905.
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Barren fissure in quartzite in main Ontario fracture zone; 50 feet above 1500 level, Ontario mine. Lamp for scale. Park city District. Summit County, Utah. ca. 1902.
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Daly West mine, 900 feet above 1400 feet level, west cross cut south contact of Ontario quartzite with overlying limestone, showing banded gouge contact overlying decomposed limestone and massive gray carbonaceous lime and cross slip. Park City district, Summit County, Utah. 1905.
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Photomicrographs showing replacement of metamorphosed limestone by chalcopyrite and pyrite. Salt Lake County, Utah. 1900.
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Photomicrographs of chalcopyrite and pyrite associated with contact metamorphic minerals. Chalcopyrite and pyrite associated with green garnet in calcite. The darkest areas are chalcopyrite and pyrite grains intergrown with garnet. Near these crystals, just outside of this field, semi crystalline masses of pyrite and irregular masses of chalcopyrite are developed in and around garnets and zinc blende. Salt Lake County, Utah. 1900, plate 36-B in U.S. Geological Survey. Professional paper 38. 1905.
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(This photograph is on the website created before FY-04!!) Stopes on bedded ore, barren bed "parting quartzite" between upper 15-foot stope and lower 6-foot stope on bedded ore.
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Fault on surface, immediately east of Hawkeye shaft, between fractured massive limestone in hanging wall and brecciated Weber quartzite and limestone underneath, looking west. Wasatch County, Utah. Circa 1904. Plate 19-B in U.S. Geological Survey. Professional paper 77. 1912.
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(This photograph is on the website created before FY-04!!) Face of rich galena ore in "gash" vein over distinct footwall fissure, on Malloy level, looking southwest. Summit County, Utah. Circa 1904. Plate 44-B in U.S. Geological Survey. Professional paper 77. 1912.
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Basal contact of monzonite sill with Bingham quartzite, Utah level, Old Jordan mine. Salt Lake County, Utah. 1900, plate 22-A in U.S. Geological Survey. Professional paper 38. 1905.
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Silver King mine, 1000 feet level N.E. Strong fracture zone in calcareous carbonaceous gray and blue lime. Dip 73 degrees N.W. Park City district, Summit County, Utah. 1905.
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Forms a panorama with photos 196,198. Surface improvements at the Silver King mine, including shaft house, workshops, bunk and boarding house, sampler, mill and aerial tramway. View is west-northwest. Park City District. Summit County, Utah. ca. 1902.
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Auriferous creek gravels in Bingham Canyon below upper Bingham, view is north-northwest. Salt Lake County, Utah. 1902. Plate 49-B in U.S. Geological Survey. Professional paper 38. 1905.
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Highland Boy tunnels, upper terminal of aerial tramway, and old cyanide mill. View is west, up Carr Fork (left) and Sap Gulch. Salt Lake County, Utah. 1902. Plate 43-A in U.S. Geological Survey. Professional paper 38. 1905.
map background search result map search result map Face of rich galena ore in "gash" vein over distinct footwall fissure, on Malloy level, looking southwest. Summit County, Utah. 1904. Fault on surface, immediately east of Hawkeye shaft. Wasatch County, Utah. 1904. Fault on surface, immediately east of Hawkeye shaft. Wasatch County, Utah. 1904. Face of rich galena ore in "gash" vein over distinct footwall fissure, on Malloy level, looking southwest. Summit County, Utah. 1904.