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Stratiform sulfide ore

  • SEDIMENTARY EXHALATIVE ZNPBAG DEPOSITS (MODEL 31aNature of ore Within stratiform mineralized rocks, sulfide minerals are generally finegrained, and commonly form nearly monomineralic laminae several mm to cm

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stratiform deposits article about stratiform deposits byin stratiform deposits, there is a predominance of stratified bodies that are conformable with the enclosing rocks. the ores in these bodies have simple mineral compositions determined by the dissemination of copper, zinc, and lead sulfides and the accompanying minerals in one or more strata of the orebearing rocks.the lovisa stratiform znpb deposit, bergslagen, swedenlovisa has features in common with the 65mt zinkgruvan deposit, which is the largest stratiform znpbag deposit in the bergslagen district. similarities include the stratiform nature of the ore, a high sphalerite + galena to fe sulfide ratio, the occurrence of stratiform znpb ore in a finegrained succession above a thick metalimestone unit, and the local occurrence of stratabound, dolomitehydrothermal mineral deposit stringer ore, quartzchalcopyritepyrite veins, are prominent at the stratigraphic base of the ore. massive sulfide ore locally shows primary stratiform features such as lamination and grading. breccia ore is common near the top of the ore, with sulfide fragments as large as 10 m or more in diameter.show data for sample 402 usgsrozendaal, a., 80, the gamsberg zinc deposit, south africa a banded stratiform basemetal sulfide ore deposit, in ridge, j.d., proceedings of the fifth quadrennial iagod symposium (the international association on the genesis of ore deposits) stuttgart, e. schweizerbart sche verlagsbuchhandlung, p.stratiform and stratabound deposits wikivolcanogenic massive sulfide ore deposit revolvy, expand your volcanogenic massive sulfide ore deposits or vms are a type of metal sulfide ore deposit, they are expelled into the ocean, cool, and precipitate sulfide minerals as stratiform sulfide ore. content from licensed under ccbysa. more details volcanogenic massive sulfide ore deposit overviewgenetic modelgeologyclassificationdistributionsee alsoexternal links

volcanogenic massive sulfide ore deposits, also known as vms ore deposits, are a type of metal sulfide ore deposit, mainly copperzinc which are associated with and created by volcanicassociated hydrothermal events in submarine environments.
these deposits are also sometimes called volcanichosted massive sulfide (vhms) deposits. the density generally is 4500 kg/m . they are predominantly stratiformaccumulations of sulfide minerals that precipi · text under ccbysa licenseinvestigation of stratiform sulphide mineralisation atinvestigation of stratiform sulphide mineralisation at mcphun's cairn, argyllshire @inproceedings{smith77investigationos, title={investigation of stratiform sulphide mineralisation at mcphun's cairn, argyllshire}, author={c. g. smith and p. pitfield and f. may and a. j. burley and s. howard and m. e. parker}, ={77} }mineralogy of sulfides elements geoscienceworldour understanding of the formation of such deposits has been revolutionized by the study of presentday volcanic and hydrothermal activity on the seafloor. disseminated to massive stratiform sulfide ores are often conformable within sedimentary sequences, grading into volcanic deposits ofcited by 24mineralogy of sulfides elementsapr 01, · our understanding of the formation of such deposits has been revolutionized by the study of presentday volcanic and hydrothermal activity on the seafloor. disseminated to massive stratiform sulfide ores are often conformable within sedimentary sequences, grading into volcanic deposits of the kind discussed above.earthvolcanogenic massive sulfide ore deposit handwikithe ore materials are trapped within a fumarole field or a black smoker field when they are expelled into the ocean, cool, and precipitate sulfide minerals as stratiform sulfide ore. some deposits show evidence of formation via deposition of sulfide via replacement of altered volcanosedimentary rocks and may also form by invasion of sulfurrichminerals free fulltext ore genesis and geodynamicthe laochang agpbzncu deposit, located in the southern margin of the sanjiang tethys metallogenic belt (stmb), is the typical agpbzncu deposit in this region. its orebodies are hosted in the carboniferous yiliu formation volcanicsedimentary cycle and occur as stratiform, stratoid and lenticular. whether or not the stratabound ore belong to the volcanogenic massive sulfide (vms) depositgenetic model of ore deposits ~ mining geologymay , · sedex ore deposits are formed due to concurrent release of orebearing hydrothermal fluids into aqueous reservoir mainly ocean, resulting in the precipitation of stratiform zinclead sulfide ore in a marine basin environment. the stratification may be obscured due to post depositional deformation and remobilization.

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Advantages of stratiform sulfide ore

solomon, n. (76) volcanic massive sulfide deposits anda review and an exploration. in wolf, k.k., ed., handbook of stratarbound and stratiform ore deposits, elsevier, amsterdam, . has been cited by the following article title the massive sulfide deposit of siirt madenköy, southeastern turkey. authors dicle balakkoca, hüseyin Çelebihydrothermal mineral deposit stringer ore, quartzchalcopyritepyrite veins, are prominent at the stratigraphic base of the ore. massive sulfide ore locally shows primary stratiform features such as lamination and grading. breccia ore is common near the top of the ore, with sulfide fragments as large as 10 m or more in diameter.sulfides elementssulfide ore deposits occupy a spectrum from accumulated pools of matte within small igneous intrusions or lava flows, mined primarily for ni and cu, to stratiform layers of weakly disseminated sulfides within large maficultramafic intrusions, mined for platinumgroup elements.gahnite in the metamorphosed stratiform massive sulfideup to10%cash back· gahnite in the metamorphosed stratiform massive sulfide deposits of the mineral district, ia, u.s.a. gahnit in metamorphen schichtgebundenen sulfidlagerstätten des mineraldistriktes, ia, u.s.a. d. j. sandhaus.cited by 10sedimentary exhalative znpbag deposits (model 31anature of ore within stratiform mineralized rocks, sulfide minerals are generally finegrained, and commonly form nearly monomineralic laminae several mm to cm thick that have continuity over large parts of the deposits. some deposits are not laminated (meggen, germany and red dog, alaska). coarsegrained crustiform and combtextured sulfiderare earth element evidence for syngenetic origin of anthe sulfide ore and the host banded ironformation have epsilon nd values at 2700 ma (4.01 and 2.54) within the range of values (1.58.5) observed for the amphibolites in the belt.the ree patterns of the mallappakonda g sulfide deposit are distinctly different from those of the epigenetic veintype g quartz deposits inrecovery of silver, g, and lead from a complex sulfiderecovery of silver, g, and lead from a complex sulfide ore using ferric chloride, thiourea, and brine leach solutions by r. g. sandberg 1 and j. l. huiatt 2 abstract the bureau of mines investigated a hydrometallurgical procedure to re­ cover g, silver, and byproduct lead from a complex leadzinc sulfide ore.supergene sulphide enrichment processnov 23, · an investigation of copper recovery from a sulphide oxide ore with a .improvement of sulphideoxide copper ores processing through the use of mixed collector . secondary enrichment zone and at the top, there exists an oxidized and a . generally void of economic minerals due to leaching by supergene that.focus on the use of soils for geochemical bination these processes may result inthermal behavior and kinetics of sulfidethe ore temperature reaching the autoignition point []. sulfide concentrate is the term of selected metal sulfide ore which is a highergrade powdery substance obtained by separating undesired components from sulfide metal ore, such as iron sulfide, copper sulfide, lead sulfide and zinc sulfidevolcanogenic massive sulfide ore deposit infogalacticvolcanogenic massive sulfide ore deposits or vms are a type of metal sulfide ore deposit, mainly cuzn which are associated with and created by volcanicassociated hydrothermal events in submarine environments.. these deposits are also sometimes called volcanichosted massive sulfide (vhms) deposits. the density generally is 4500 kg/m 3.they are predominantly stratiform accumulations offield trip a5 delorraine nysga this are three evaporiteore couplets within units 6, , and (fig. 4). stratiform massive sulfide source bed lenses or layers specifically occur in those units. the association of evaporites and ore is an indirect, but important one that is common to other important sulfide deposits.a review of the behaviour of platinum group elementsthe merensky reef is a thin (typically <2 m), stratiform pge deposit located at the top of the critical zone in the eastern and western limbs of the bushveld complex, and is hosted by pyroxenitic cumulate rocks. the pges are associated with base metal sulfides in a similar manner to those in the platreef. in natural magmatic sulfide oresedimentary exhalative znpbag deposits (modelstratiform ore (large, 83; lydon, 83) lead, zinc (cadmium), with or without barium (zoned laterally outward from feeder zone (fig. 1). iron may be enriched within and adjacent to the basemetal sulfide zone (large, 83);

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The case of stratiform sulfide ore

supergene sulphide enrichment processnov 23, · an investigation of copper recovery from a sulphide oxide ore with a .improvement of sulphideoxide copper ores processing through the use of mixed collector . secondary enrichment zone and at the top, there exists an oxidized and a . generally void of economic minerals due to leaching by supergene that.focus on the use of soils for geochemical bination these processes may result involcanogenic massive sulfide occurrence modelmassive ore in volcanogenic massive sulfide deposits consists of greater than 40 percent sulfides, usually pyrite, pyrrhotite, chalcopyrite, sphalerite, and galena; nonsulfide gangue typically consists of quartz, barite, anhydrite, iron oxides, chlorite, sericite, talc, and their metamorphosed equivalents.the matchless copper deposit, south west africa/namibia; aa minor d 3 deformation event produced crenulation and fracture cleavages.the copperzinc deposits occur within a stratiform zone of sulfidebearing rocks. massive sulfide ore occupies three shoots plunging northwest parallel to the f 2 f axes. the footwall to the ore shoots consists ofmassive sulfide deposits massive sulfide deposits are ore deposits that have significant stratiform ore bodies consisting mainly of sulfide minerals. most massive sulfide ore deposits have other portions that are not massive, including stringer or feeder zones beneath the massive parts that mostly consist of crosscutting veins and veinlets of sulfides in a matrix of pervasively altered host rock and gangue .stratiform deposits article about stratiform deposits bythe ores in these bodies have simple mineral compositions determined by the dissemination of copper, zinc, and lead sulfides and the accompanying minerals in one or more strata of the orebearing rocks. stratiform deposits are generally of large size, cover a broad area, and form vast ore regions orsedimentary exhalative deposite seg ugmscapr , · (carne and cathro, 82). these deposits are an economically important source of lead, zinc, and silver. it is interpreted to have been formed as a result of hydrothermal activity which are released in a basin on the sea floor, resulting in the precipitation of stratiform ore. the host rocks are generally shales, siltstones, and carbonates.sedex, vms, mvt minerals earth sciencesthe ore materials are trapped within a fumarole field or a black smoker field when they are expelled into the ocean, cool, and precipitate sulfide minerals as stratiform sulfide ore. metal zonation most vms deposits show metal zonation, caused by the changing physical and chemical environments of the circulating hydrothermal fluid. stratiform sulfide and baritefluoritestratiform sulfide and baritefluorite mineralization of the vulcan prospect, northwest territories exhalation of basinal brines along a faulted continental margin february canadian journalmagmatic ore deposits unal.eduore minerals present in pcu deposits include chalcopyrite, bornite, chalcocite, covellite, cuprite and tennorite. the ores consist of concentrated swarms of quartz sulfide stockworks and sometimes as sulfide disseminations. some de posits have a zone of secondary enrichment at the surface caused by groundwater leaching and redepositingmineralogy of sulfides elementsapr 01, · disseminated to massive stratiform sulfide ores are often conformable within sedimentary sequences, grading into volcanic deposits of the kind discussed above. pyrite again dominates the sulfide mineralogy in deposits such as those of the copperbelt ofconstraints of fesc stable isotopes on hydrothermalaug 04, · introduction. sedimenthosted stratiform sulfide (shss) deposits represent anomalous accumulations of metals and reduced sulfur from exhalative hydrothermal fluids on the seafloor and in marine strata ( large et al., 05, leach et al., 05 ).author wenhong johnson qiu, wenhong johnson qiu, meifu zhou, meifu zhou, xiaochun li, fang huang, john ma...

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