jul 1, 1989 . the zlaté hory ore deposits — as an example of volcanogenic, strata-bound, massive, base-metal sulfides occurring in the devonian .
title, gold-rich volcanogenic massive sulphide deposits . their diagnostic features are stratabound to discordant, volcanic-hosted massive sulphide lenses with .
oct 24, 2019 . pdf volcanic-associated massive sulfide deposits vms are predominantly . mation of strata-bound ore deposits, including vms de-. posits .
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strata-bound hydrothermal alteration hosted by permeable sedimentary volcaniclastic rocks; 2 the formation of massive sulphides in a closed to partly closed .
the very important sedex-type stratabound and stratiform base-metal deposits in china seem to have occurred mainly at times when the volcanogenic massive .
volcanogenic massive sulfide vms deposits are defined as concordant, stratabound, massive or semi- massive sulfide deposits formed by the discharge of.
stratabound body composed principally of massive >40% sulphide, quartz and subordinate phyllosilicates, iron oxide minerals and altered silicate wallrock.
jan 22, 2016 . overview volcanogenic massive sulfide vms deposits, also known as . description volcanogenic massive sulfide deposits are stratabound .
the deposits are stratabound, occurring along an intensely altered zone that . the geological evidence suggests that the sulfides are volcanogenic and were .
the time- and strata-bound volcanogenic sulphide deposits of the paleozoic . the pyrite belt and the different exploration targets, massive pyritic sulphide ores, .
may 28, 2013 . hence, the presence of massive sulphide deposits, formed and . these large strata-bound stratiform sulphides were deposited within . volcanogenic massive sulphide vms deposits related to mid-ocean ridge volcanism.
the balcooma and dry river south volcanogenic massive sulfide deposits . hutchinson, r.w., and searle, d.l., 1971, stratabound pyrite deposits in cyprus .
there is typically a mound-shaped to tabular,stratabound body composed principally of massive >40% sulphide, quartz and subordinate phyllosilicates andiron .
orogenic belts hosting volcanogenic massive sulfide vms deposits . the deposits are characterized by a stratabound accumulation of sulfide minerals at or.
b.a. bouley, r.w. hodderstrata-bound massive sulfide deposits in silurian-devonian volcanic rocks at harborside, maine. econ. geol., 79 1984 , pp. 1693- .
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there is typically a mound-shaped to tabu- lar, stratabound body composed principally of massive. >40% sulphide, quartz and subordinate phyllosilicates and.
volcanogenic massive sulfide deposits in wisconsin: . epigenetic strata-bound to stratiform massive sulfide mineralization and epigenetic strata- .
location of the major volcanogenic massive sulphide deposits of the. iberian pyrite . practice for strata-bound volcanogenic sulphide deposits in the. spanish .
late ordovician to early devonian sedimentary and volcanic rocks . stratabound sediment-hosted lead. peekaboo . volcanogenic massive sulphide deposits.
the large number 01mainly massive, polyrnetallic, stratabound sulphide . pyrite-dominated assemblages in malic and mixed malicllels ic volcanogenic settings.
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tourmaline occurs in close association with stratabound massive sulfides and in postore . by marine sedimentary and volcanic rocks and by a variety of igneous.
on the sea-floor, but there is no clear evidence of a volcanogenic origin. lo al discordant relationships between the massive sulphides and the wall rocks are.
4.5.1 volcanogenic massive sulphide vms deposits . . figure 4.7 strata-bound and structure controlled mvt deposit. cross section through the central part of.
volcanogenic massive sulfide deposits are stratabound concentrations of sulfide minerals precipitated from hydro- thermal fluids in extensional seafloor .
abstract. over 70 major >1 million metric tons strata-bound and stratiform sulfide deposits of . attention is focused on geochemical data from mafic volcanic.
jan 15, 2016 . 1. introduction. in the context of volcanogenic massive sulfide vms . isotopic compositions of some strata-bound sulfide ores. geochem j 4: .
some deposits have zoned alteration pipes below massive sulphides. stratabound alteration zones are commonly developed in the footwall and extend along .