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Volcanic Stratigraphy And Hydrothermal Alteration Associated With The Duck Pond And Boundary Volcanogenic Massive Sulphide Deposits Central Newfoundland
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Book Synopsis Volcanic Stratigraphy and Hydrothermal Alteration Associated with the Duck Pond and Boundary Volcanogenic Massive Sulphide Deposits, Central Newfoundland by : Darin Walter Wagner
Download or read book Volcanic Stratigraphy and Hydrothermal Alteration Associated with the Duck Pond and Boundary Volcanogenic Massive Sulphide Deposits, Central Newfoundland written by Darin Walter Wagner and published by . This book was released on 1993 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Masters Theses in the Pure and Applied Sciences by : Wade H. Shafer
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS)* at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dis semination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volumes were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 38 (thesis year 1993) a total of 13,787 thesis titles from 22 Canadian and 164 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this impor tant annual reference work. While Volume 38 reports theses submitted in 1993, on occasion, certain uni versities do report theses submitted in previous years but not reported at the time.
Book Synopsis CIM Bulletin by : Canadian Institute of Mining and Metallurgy
Download or read book CIM Bulletin written by Canadian Institute of Mining and Metallurgy and published by . This book was released on 1994 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Canadian Journal of Earth Sciences by :
Download or read book Canadian Journal of Earth Sciences written by and published by . This book was released on 2016 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Volcanogenic Sulphide Districts of Central Newfoundland by : H. S. Swinden
Download or read book The Volcanogenic Sulphide Districts of Central Newfoundland written by H. S. Swinden and published by . This book was released on 1988 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrothermal Alteration and Lithogeochemistry of the Boundary Volcanogenic Massive Sulfide (VMS) Deposit, Central Newfoundland, Canada by : Michael Buschette
Download or read book Hydrothermal Alteration and Lithogeochemistry of the Boundary Volcanogenic Massive Sulfide (VMS) Deposit, Central Newfoundland, Canada written by Michael Buschette and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Boundary volcanogenic massive sulfide (VMS) deposit (0.45 Mt @ 3.4% Cu, 4.0% Zn, 1.0 % Pb, 34 g/t Ag) is located in the Tally Pond group (~510 Ma), central Newfoundland, Canada. The deposit is hosted by rhyolitic rocks that are interpreted to have formed within a rifted continental arc on the leading edge of Ganderia. Mineralization consists of massive pyrite, chalcopyrite, and sphalerite lenses. The basal portion of these lenses contain lapilli tuff clasts indicative of replacement style mineralization. Three hydrothermal alteration assemblages are recognized at Boundary: quartz-sericite, chlorite-sericite, and intense chlorite. Lithogeochemical data are useful in identifying key element associations and alteration assemblages. Short-wave infrared (SWIR) spectroscopy data provide an effective vector for Zn mineralization and correlate with whole rock geochemistry. Lithogeochemical and SWIR data have been used to recreate a three-dimensional alteration model of the Boundary deposit that may be useful in further mineral exploration.
Download or read book Master's Theses Directories written by and published by . This book was released on 1993 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Education, arts and social sciences, natural and technical sciences in the United States and Canada".
Book Synopsis Geology, Structure, Petrogenesis, and Hydrothermal Alteration Reconstruction of the Ming Volcanogenic Massive Sulphide Deposit, Baie Verte Peninsula, Newfoundland, Canada by : Jean-Luc Pilote
Download or read book Geology, Structure, Petrogenesis, and Hydrothermal Alteration Reconstruction of the Ming Volcanogenic Massive Sulphide Deposit, Baie Verte Peninsula, Newfoundland, Canada written by Jean-Luc Pilote and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Cambro-Ordovician Ming volcanogenic massive sulphide (VMS) deposit, Newfoundland Appalachians consists of stratiform and elongated semimassive to massive sulphide lenses (1807, 1806, Ming North, and Ming South zones) enriched in Cu, Zn, Ag, and Au that are underlain by a discordant Cu-rich stockwork zone (Lower Footwall zone). The host successions consist of highly fractionated FI-/FII-type rhyodacitic coherent to volcaniclastic rocks, which were deposited within a synvolcanic fault-controlled nested basin. The disposition of the sulphide lenses and the stockwork zone were controlled by the same synvolcanic faults. Deformation and greenschist metamorphic overprint have remobilized (≤20 m) less competent sulphide assemblages locally, but original stratigraphic relationships are preserved. Enclosed precious metal-rich sulphide clasts in a mafic polymictic breccia, which immediately overlies the deposit, support a syngenetic introduction of Au and associated tellurides at the Ming deposit. From regional geology and geochemical affinities, the felsic host successions are likely derived from direct partial melting of an island arc tholeiite at depths exceeding garnet stability zones (≥30 km). These types of magmas share many affinities to modern adakites formed in juvenile environments and may be more conducive to Au transport than previously thought. Ten distinct alteration assemblages are associated with the ore-forming hydrothermal fluids, grouped as chlorite-, sericite-, and (Mn-)carbonate-rich facies. The distribution and chemistry of the alteration assemblages are strongly controlled by the hosting lithologies. Most mass changes are restricted to the upper ~100 m of the stratigraphy, within the permeable volcaniclastic lithofacies. The Cu-rich stockwork is hosted by a chlorite-rich assemblage, reflecting high temperature fluids (≥300°C) that mixed with seawater at the coherent-fragmental interface, decreasing Cu solubility and resulting in the precipitation of chalcopyrite. Gold, Ag, sulfosalts and other magmatophile elements are enriched in sulphide zones that are immediately underlain by coherent rocks. The less diffusive potential of the coherent rocks may have increased the efficiency of metal precipitation in these zones and could explain the heterogeneity of metal grades at Ming. The paragenetic evolution indicates that the introduction of precious metals is spatially and temporally associated with the quartz-sericite-sulphides assemblage, which is considered to reflect the overprint of acidic and low temperature (≤250°C) fluids in the waning stage of the hydrothermal system.
Book Synopsis CIM Bulletin by : Canadian Institute of Mining, Metallurgy and Petroleum
Download or read book CIM Bulletin written by Canadian Institute of Mining, Metallurgy and Petroleum and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Metallogenic Framework of Base and Precious Metal Deposits, Central and Western Newfoundland by : H. S. Swinden
Download or read book Metallogenic Framework of Base and Precious Metal Deposits, Central and Western Newfoundland written by H. S. Swinden and published by . This book was released on 1990 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Volcanic Stratigraphy, Mineralization, and Hydrothermal Alteration of the Pilley's Island Massive Sulphides, Newfoundland by : Frank Santaguida
Download or read book Volcanic Stratigraphy, Mineralization, and Hydrothermal Alteration of the Pilley's Island Massive Sulphides, Newfoundland written by Frank Santaguida and published by . This book was released on 1994 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Volcanic and Hydrothermal Reconstruction of the Pilley's Island Volcanogenic Massive Sulfide District, Central Newfoundland by : Conor Patrick McKinley
Download or read book Volcanic and Hydrothermal Reconstruction of the Pilley's Island Volcanogenic Massive Sulfide District, Central Newfoundland written by Conor Patrick McKinley and published by . This book was released on 2013 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Geophysical Interpretation of the Duck Pond Massive Sulphide Deposit in Central Newfoundland by : Krystal O'Neill
Download or read book A Geophysical Interpretation of the Duck Pond Massive Sulphide Deposit in Central Newfoundland written by Krystal O'Neill and published by . This book was released on 2006 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemical Sedimentation Associated with Mid-Paleozoic Volcanism in Central Newfoundland by : Swinden, H. Scott
Download or read book Chemical Sedimentation Associated with Mid-Paleozoic Volcanism in Central Newfoundland written by Swinden, H. Scott and published by 1976.. This book was released on 1976 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Geological, Geochemical and Structural Analysis of the Lower Ordovician Tulks Hill Cu-Zn-(Pb) Volcanogenic Massive Sulphide Deposit, Central Newfoundland, Canada by : Christopher Moreton
Download or read book A Geological, Geochemical and Structural Analysis of the Lower Ordovician Tulks Hill Cu-Zn-(Pb) Volcanogenic Massive Sulphide Deposit, Central Newfoundland, Canada written by Christopher Moreton and published by . This book was released on 1984 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrothermal Fe-Carbonate Alteration Associated with Volcanogenic Massive Sulfide (VMS) Deposits in Cycle IV of the Noranda Mining Camp, Rouyn-Noranda, Quebec by : Ryan Wilson
Download or read book Hydrothermal Fe-Carbonate Alteration Associated with Volcanogenic Massive Sulfide (VMS) Deposits in Cycle IV of the Noranda Mining Camp, Rouyn-Noranda, Quebec written by Ryan Wilson and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Massive sulfide deposits in the Noranda mining camp, northwestern Québec, are mainly associated with extensive footwall alteration defined by intense chloritization and sericitization. However, Fe-carbonate alteration also occurs in proximity to some deposits. To test the exploration significance of carbonate alteration in the camp, two areas of intense carbonate alteration were examined, around the small Delbridge deposit and near the new Pinkos occurrence in the Cyprus Rhyolite. Between 1969 and 1971, the Delbridge deposit produced 370,000 t of ore grading 9.6% Zn, 0.61% Cu, 110 g/t Ag, and 2.1 g/t Au. Recent drilling at the new Pinkos occurrence intersected 2.64 m of massive to semi-massive sulfides grading 8.1% Zn and 18.2 g/t Ag. Alteration mapping has shown that the distribution of Fe-carbonates can be used to identify vertically extensive zones of hydrothermal upflow at both properties. At Delbridge, intense Fe-carbonate alteration in brecciated rhyolite defines a pipe-like upflow zone that extends vertically for up to 300 m within the stratigraphic footwall of the massive sulfides and 100 m into the hanging wall. The location of known massive sulfide mineralization coincides with the intersection of the alteration pipe and a favorable horizon marked by the occurrence of fine-grained volcaniclastic rocks. At Pinkos, a similar zone of Fe-carbonate alteration occurs in outcrops of coherent rhyolite. Fe-carbonate alteration is most intensely developed along polygonal cooling fractures in massive rhyolite and decreases in intensity towards the centers of the columns. Fe-carbonate stringers and locally abundant matrix carbonate occur in fragmental rocks at the stratigraphic top of the coherent rhyolite flows and are most intense at the location of sulfide-bearing outcrops that mark the known mineralized horizon. Whereas Fe-carbonate alteration defines the central part of the hydrothermal upflow zones at both properties, disseminated pyrite occurs at the margins and is widespread outside the main upflow zones. This may indicate that Fe-carbonate in the main upflow zones formed at the expense of earlier disseminated sulfides. Replacement of pyrite by synvolcanic Fe-carbonate alteration at Delbridge and Pinkos can probably be attributed to a relatively high concentration of dissolved CO2, possibly of magmatic origin, in the main-stage ore-forming fluids.
Book Synopsis Abstracts of Papers by : Geological Association of Canada. Meeting
Download or read book Abstracts of Papers written by Geological Association of Canada. Meeting and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
