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Silver King mine: shaft and office at left, sampler in middle, mill at right, looking southwest. Summit County, Utah. Circa 1904. Published as Plate 41-A in U.S. Geological Survey Professional paper 77. 1912. Note: This photograph is on the website created before FY-04.
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Pay-streak of pyrite, zinc blend, chalcopyrite and gray copper, 4 feet wide in fissure near base of Ontario lode, between quartzite walls; 90 feet above 1500 level, Ontario mine. Hammer for scale; view framed by mine timbers. Park City District. Summit County, Utah. ca. 1902.
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Roll fault, no. 1 level, Old Jordan mine, looking northeast, the footwall quartzite (right) is faulted up into contact with black copper sulphide ore (left) Salt Lake County, Utah. 1900, with graphics, plate 21-B in U.S. Geological Survey. Professional paper 38. 1905.
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Photomicrographs showing replacement of metamorphosed and a normal calcareous shale. Calcareous carbonaceous shale, from hanging wall, upper Red Wing Extension tunnel. Subangular quartz grains roughly bedded in calcareous, carbonaceous matrix. Some of calcareous material has partially segregated in irregular area of calcite grains and shows early stage of formation of calcite vein. This section is typical of those of the black shale in the geologically upper portion of the Bingham section. Salt Lake County, Utah. 1900, plate 35-B in U.S. Geological Survey. Professional paper 38. 1905.
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Form a panorama. Park City monocline shows monoclinal structure of sedimentary formations. Weber quartzite in foreground, Park City formation capping first spur. Thaynes formation on the second and third cuestas, and heavy Triassic sandstone forming the prominent cuesta in the right background, all dipping northwest. Park City in middle ground; Ontario mill in left foreground, and Silver King mine and Crescent Ridge in left background, looking southwest. Summit County, Utah. Circa 1904. Published as Plate 4-A in U.S. Geological Survey. Professional paper 77 1912.
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Metamorphosed Jordan limestone northeast wall of Galena fissure, the alternate lighter and darker bands are marble and blue limestone beds, view in northwest along strike. Salt Lake County, Utah. 1900, plate 28-B in U.S. Geological Survey. Professional paper 38. 1905.
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Outcrop of galena fissure in metamorphosed Jordan limestone, view to northeast. Salt Lake County, Utah. 1900, plate 28-A in U.S. Geological Survey. Professional paper 38. 1905.
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Main fault marked by gully at left and subsidiary fault by gully at right. Central spur culminating in peak is on limestone of Park City formation overlooking Woodside shale and limestone of Thaynes formation at left, looking southeast. Summit County, Utah. Circa 1904. Plate 18-A in U.S. Geological Survey. Professional paper 77. 1912.
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Photomicrographs of chalcopyrite associated with contact metamorphic minerals. Chalcopyrite with zinc blende and garnet in calcite, from metamorphosed limestone 60 feet from monzonitic intrusive, no. 7 level, Highland Boy mine. The darkest areas are intergrowths of chalcopyrite and pyrite. They fringe the zinc blende and are intergrown with it and green garnet. The groundmass is calcite. Salt Lake County, Utah. 1900, plate 37-A in U.S. Geological Survey. Professional paper 38. 1905.
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Photomicrographs showing replacement of metamorphosed and a normal calcareous shale. Intergrowth of chalcopyrite and pyrite replacing quartz, from no. 4 level Highland Boy mine. The chalcopyrite and pyrite encircle and replace the quartz of an entirely silicified limestone. This section from a specimen from an upper level shows evidences of superficial alteration not apparent in the reproduction. The margins of the sulphides are tarnished, simulating peacock ore. Salt Lake County, Utah. 1900, plate 35-A in U.S. Geological Survey. Professional paper 38. 1905.
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Glaciated canyon U-shaped profile and amphitheaters at head of Thaynes Canyon, looking south. Summit County, Utah. Circa 1904. Plate 8-A in U.S. Geological Survey. Professional paper 77. 1912.
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Slope traversed by fault, marked by ledges of quartzite in footwall under limestone of Thaynes formation on north. Looking east northeast, down McHenry Canyon, Hawkeye dump in left background; Liberty tunnel at right. Wasatch County, Utah. Circa 1904. Plate 19-A in U.S. Geological Survey. Professional paper 77. 1912.
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Photomicrographs of chalcopyrite developing in altered monzonite, chalcopyrite developing in secondary quartz, from dump of Eldorado shaft, Boston Consolidated group. Magnetite and original biotite individuals have disappeared. Chalcopyrite has developed in secondary quartz. Feldspathic groundmass has altered to sercicite. Salt Lake County, Utah. 1900, plate 27-A in U.S. Geological Survey. Professional paper 38. 1905.
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Form a panorama with photo 202 of Daly West, Daly Judge, and Diamond-Nimrod mines, and Crescent-fault bluff. View is southwest. Park City District. Summit, Utah. ca. 1902.
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Form a panorama. Clayton Peak diorite stock, diorite encircled by metamorphosed sediments lying to the right of Brighton Gap in right foreground and to left of the gap at left. Glacial topography (cirques, roche moutonees and moraines) developed on diorite. Summit County, Utah. Circa 1904. Plate 4-B in U.S. Geological Survey. Professional paper 77. 1912.
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Form a panorama. Clayton Peak diorite stock, diorite encircled by metamorphosed sediments lying to the right of Brighton Gap in right foreground and to left of the gap at left. Glacial topography (cirques, roche moutonees and moraines) developed on diorite. Summit County, Utah. Circa 1904. Plate 4-B in U.S. Geological Survey. Professional paper 77. 1912.
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Ontario fracture zone of 1,700 foot level, between well-defined walls of limestone and porphyry. Looking southwest. Summit County, Utah. 1902.
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Ground cut by southward continuation of overthrust fault, north slope of McHenry Canyon, limestone of Thaynes formation at right; diorite porphyry at left looking north. Wasatch County, Utah. Circa 1904. Plate 18-B in U.S. Geological Survey. Professional paper 77. 1912.
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Recent Dissection of Bonneville Bench by Tooele Creek on west slop of Oquirrh range. View is northward along west slopes of Oquirrhs. In the middle background Stansbury Island appears above Great Salt Lake. Salt Lake County, Utah, 1900. Published in black and white as plate 47b in U.S. Geological Survey. Professional paper 38. 1905.
map background search result map search result map Park City monocline shows monoclinal structure of sedimentary formations. Summit County, Utah. Circa 1904. Slope traversed by fault, marked by ledges of quartzite in footwall under limestone of Thaynes formation on north. Wasatch County, Utah. 1904. Silver King mine: shaft and office at left, sampler in middle, mill at right, looking southwest. Summit County, Utah. Circa 1904. Form a panorama. Clayton Peak diorite stock. Summit County, Utah. 1904. Form a panorama. Clayton Peak diorite stock. Summit County, Utah. 1904. Ground cut by southward continuation of overthrust fault, north slope of McHenry Canyon. Wasatch County, Utah. 1904. Main fault marked by gully at left and subsidiary fault by gully at right. Summit County, Utah. 1904. Glaciated canyon U-shaped profile and amphitheaters at head of Thaynes Canyon, looking south. Summit County, Utah. 1904. Slope traversed by fault, marked by ledges of quartzite in footwall under limestone of Thaynes formation on north. Wasatch County, Utah. 1904. Ground cut by southward continuation of overthrust fault, north slope of McHenry Canyon. Wasatch County, Utah. 1904. Park City monocline shows monoclinal structure of sedimentary formations. Summit County, Utah. Circa 1904. Silver King mine: shaft and office at left, sampler in middle, mill at right, looking southwest. Summit County, Utah. Circa 1904. Form a panorama. Clayton Peak diorite stock. Summit County, Utah. 1904. Form a panorama. Clayton Peak diorite stock. Summit County, Utah. 1904. Main fault marked by gully at left and subsidiary fault by gully at right. Summit County, Utah. 1904. Glaciated canyon U-shaped profile and amphitheaters at head of Thaynes Canyon, looking south. Summit County, Utah. 1904.