...James Constantopoulos; Peter B. Larson Abstract Oxygen isotope values of vein quartz from the Star-Morning mine range from 13.2‰ to16.2‰ relative to standard mean ocean water. Calculated isotopic values of water in equilibrium with the vein quartz at 325 °C range from 7.2‰ to 10.2‰. The δ 18 O...

... provide evidence for two major vein-forming events in the Coeur d'Alene district and surrounding areas of the Belt basin. The data suggest that the zinc- and lead-rich veins (e.g., Bunker Hill and Star-Morning mines) formed in the Proterozoic (1.0 Ga), whereas the silver-rich veins (e.g., Silver belt...

... suggest that the source of Au within the Morning Star dike as well as that in other members of the Woods Point dike swarm was the Cu-PGE-Au sulfides left at depth within the magma conduit system, for example within the Thomson River Copper Mine dike. Mass balance calculations undertaken suggest that ~104...

... Paleozoic dolostone using the CO 3 2 − spectral absorption feature. In addition, logical operator algorithms were able to discriminate Fe-bearing muscovite from muscovite in the polymetallic (gold and silver) Morning Star mine, which supports previous studies that suggest Fe-bearing muscovite is closely...

... thrusting and related deformation in structurally high levels of the complex to be latest Jurassic. The Ivanpah and Striped Mountain plutons in the Ivan-pah Mountains have been dated at 147 ± 7 Ma and 141 ± 11 Ma, respectively. These plutons are cut by the Keaney-Mollusk Mine and Morning Star Mine thrusts...

..., 1964 ). The δ 18 O quartz values of St. Eugene quartz sulfide veins are similar (13.9 ± 0.5‰) to those of the Star-Morning (14.7 ± 0.7‰; Constantopoulos and Larson, 1991 ), and Sunshine (average = 14.4 ± 0.6‰; Eaton et al., 1995 ) mines and other deposits in the Cœur d’Alene district (9.5...

... that this would include Father Pigot, scientist, who was a distinctly valuable member of the community (Sydney Morning Herald 15 December 1922). Smith’s Weekly (9 April 1921, 7 July 1927) enjoyed portraying Pigot and writing about his many activities (see Figures 11 and 12 ). The Sydney Sun (14 May 1917...

.... Figure 1. ▴ Map shows estimated location of 16 December 1811 M w 7.2 New Madrid earthquake (large star, labeled). Location of Asheville is indicated by smaller star. Also shown are the MMI values determined by Hough et al. ( 2000 ). A set of two values separated by a comma indicates independent...

... deposits of Tambang Sawah, Sumatra, the Comstock lode, Nevada, and at Smeinogorski, Altai region ( Barton et al., 1978 ), as well as in the Bullfrog mine district, Nevada ( Castor and Sjoberg, 1993 ), at Cirotan, West Java ( Marcoux et al., 1993 ), in the Morning Star deposit, California ( Sheets 1995...

... sufficiently large to pay for the mining has not yet transpired.” 27 Winchell was not present at the French Creek site when gold was purportedly discovered. The record shows that on the morning of 2 August he joined a re-connoitering party ordered to trace French Creek out to the southeast and to visit...