...Fig. 9. Photomicrographs and scanning electron microscopy (SEM) images from the Ruttan, Mine East, and Dick zones of the New Britannia mine. a) Crossed-polarized transmitted-light photomicrograph of inclusion trails in an amphibole porphyroblast. Both the inclusion trails and porphyroblast...

...Fig. 11 Till geochemistry maps for the <0.18-mm fraction of archived surface till samples in the Ruttan mine area (data from Lenton and Kaszycki, 2005 ) and generalized bedrock geology (see Fig. 1 for unit legend). (A) Map of PC-1 (log-centered ratio data) showing the location...

... in low grade metamorphic rocks at Cobar, N.S.W., Australia . The Australian Journal of Earth Sciences , 35 , 295 – 302 . Bristol , C.C. ( 1979 ) Application of sphalerite geobarometry to ores from the Ruttan Mine . Economic Geology , 74 , 1496 – 1502 . Bristol , L.T. , Scott...

... in this study are the coeval felsic magmatic sources or mantle fluids. Further multiple sulfur isotope analyses are required to determine whether the results of this study apply to other Archean gold deposits. We acknowledge support from the Gold Fields St. Ives Mining Company for financial...

... with sparsely disseminated coarse pyrite, immediately west of the west lens. c. Sheath folds in dacite ash tuff between the west and east lenses. d. Pyrite stringers cutting sericitized dacite ash tuff in footwall to the west lens. In the southeastern part of the property near the historical Okreb mine...

...Y.T. JOHN KWONG Abstract To exploit an ore deposit without unduly impacting the environment is a challenge that can only be met by the concerted efforts of traditionally independent teams working on a mining project. Not only is detailed geology required of geologists to help mine engineers...

... (left) and Bentley (right). Δ 33 S = [ ( 1 + δ 33 S / 1 , 000 ) − ( 1 + δ 34 S / 1 , 000 ) 0 . 515 − 1 ] * 1000 , which was used as a measure of MIF relative to the MDF line. Multiple sulfur isotope measurements of the Ruttan...

... of Mines, Geological Survey, 1922 Summary Report , p. 1 – 36 . Ames D.E. , 1996 , Stratigraphic and tectonic setting of the Paleoproterozoic Ruttan Cu-Zn VHMS deposit, Rusty Lake belt, Trans Hudson orogen : Geological Survey of Canada , Bulletin 426 , p. 15 – 43 . Ames D.E...

... of pyrite types were cut out and mounted in 25-mm epoxy disks together with prepolished pieces of sulfide standards ( Crowe and Vaughan, 1996 ): Ruttan pyrite ( δ 34 S CDT = +1.2‰; δ i S CDT = [1,000 ×Δ( i S/ 32 S sample )/(iS/32S CDT ) − 1], where i refers to a particular isotope of S, CDT refers...

... by Ireland et al. ( 2014 ). Pyrite sulfur isotope data are normalized to the Ruttan pyrite standard with δ 34 S V-CDT (Vienna-Canyon Diablo Troilite) value of 1.2‰ ( Crowe and Vaughan, 1996 ). Arsenopyrite sulfur isotope data are normalized to an arsenopyrite standard (YJS-65) with δ 34 S V-CDT value...

... of upwelling Zechstein sulphate on the concentration and isotope signature of sedimentary sulphides in a fluvioglacial sand aquifer —G. Mallén, R. Trettin, M. Gehre, R. Flynn, T. Grischek, and W. Nestler 261 Coupled chemistry and transport modelling of sulphidic waste rock dumps at the Aitik mine site...

... 1.98 4.64 0.25 27.1 0.72 Past-producing mine 1963 Geophysics Ruttan 81,100,000 1.34 3 0.08 11.89 0.45 Past-producing mine 1969 Geophysics Westarm 1,394,149 3.21 1.48 0.05 17.49 1.56 Past-producing mine 1973 Geophysics Trout Lake 21,612,296 1.74 4.97 0.06 16.02...

.... The detailed analytical procedures and methods are thoroughly described by Ireland et al. ( 2014 ). All analyses for the unknowns were normalized to two primary standards, Ruttan pyrite and Norilsk chalcopyrite, assuming δ 34 S V-CDT values of +1.2‰ and +8.0‰, respectively (Crowe & Vaughan, 1996...

... ). The sedimentary units mainly consist of an Ordovician turbidite package and Silurian dolostone ( Figs. 2a and 2b ). The Ordovician sequence trends northeast (NE) to eastwest (EW) with northwest to northerly dip and is exposed in the eastern and western parts of the mining area ( Figs. 3 and 4a ). The Silurian...

... deposit is an economically significant lode gold deposit in the Ailaoshan orogen of southwest China, a rare Cenozoic orogenic gold belt, globally ( Goldfarb et al., 2001 ; Deng et al., 2014 , 2015 ; Goldfarb, 2021 ). Gold mining in the Daping area began in the late Ming Dynasty, with more recent...

... grading 5.0 g/t Au ( Liu et al., 2004 ; Shu, 2004 ). Local Pb-Zn-Ag-Au ores are present at Caojiashan ( Fig. 6 ). The Caojiashan and Zhulintang Au deposits were mined in the past, and samples in this study were collected from the open pit and drill core. Early Triassic limestone of the Daye Formation...

...Russell Rogers; Pierre-Simon Ross; Jean Goutier; Patrick Mercier-Langevin Abstract An innovative approach to enhance volcanogenic massive sulfide (VMS) exploration in regions outside of mining camps is to first use physical volcanology with litho- and chemostratigraphy to establish the location...