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Showing 1 to 7 of 7 for “"massive sulfides"”.
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Inferences on the Influences of Age & Porosity on Oxidative Weathering of Massive Sulfides at the Endeavour Segment of Juan de Fuca Ridge
… deposits comprised mainly of inorganic metal sulfides that precipitate from mixtures of seawater and high-temperature, sulfide-rich, oxygen-poor vent fluid. These mineral aggregates are known as seafloor massive sulfide deposits and occupy unique biogeochemical niches that remain largely …
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Characterization of metamorphic assemblages and assessment of Cu-Pb-Ag-Au-Zn mobility at the Lalor deposit, Snow Lake, Manitoba
… recrystallized the mineral assemblages in the massive sulfide and hydrothermally altered rocks that are associated with the formation of VMS deposits in the area. The Lalor deposit differs from most VMS deposits in the area in that it contains low-sulfide Au rich zones that are proximal to but …
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The deepest paradox : seafloor mining and its future
… nodules, ferromanganese crusts, and seafloor massive sulfides is well-established, the biological and ecological profiles of these sites are still actively developing. As a result, the two scientific disciplines - geochemistry and biology - have advanced at different rates. Regions of the …
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Electrical and electromagnetic methods for submarine massive sulfide exploration: a case study of the Palinuro Seamount, Tyrrhenian Sea
… in exploring for and characterizing seafloor massive sulfide (SMS) deposits: the electromagnetic (EM) and the self-potential (SP) methods. Working with a team from the Helmholtz Center for Ocean Research Kiel (GEOMAR) in Germany, I carried out a first test of a new marine EM configuration …
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Inferences on the influences of age & porosity on oxidative weathering of seafloor massive sulfide deposits at the endeavour segment of the Juan de Fuca Ridge
… deposits comprised mainly of inorganic metal sulfides that precipitate from mixtures of seawater and high-temperature, sulfide-rich, oxygen-poor vent fluid. These mineral aggregates are known as seafloor massive sulfide deposits and occupy unique biogeochemical niches that remain largely …
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Significance of magma mingling and mixing during the formation of the host-rock successions of Archean massive sulfide deposits in the Noranda camp, Abitibi subprovince, Quebec, The
… some of the most important volcanic-hosted massive sulfide deposits of the Neoarchean Abitibi subprovince of northern Ontario and Quebec. With a historic production of 54.3 Mt of ore grading 2.2% Cu and 6.1 g/t Au, the Horne deposit was the largest base and precious metal producer within the …
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Variations in structure and tectonics along the Mid-Atlantic Ridge, 23⁰N and 26⁰N
… the hydrothermal activity and deposition of massive sulfides is being sustained by heat generated by a recent magmatic intrusion. A consequence of this scenario is that thermal stresses play a dominant role in controlling the distribution of earthquakes and nature of faulting. Such a …