Volcanogenic massive sulphide deposits linkedin slideshare. Volcanogenic massive sulfide ore deposit wikipedia. Vms deposits of the world investing news network february 24th, 2011 although not the worlds primary source of copper, volcanogenic massive sulfide deposits or vms, are an important source of. The update was necessary because of new information. Following the discovery in 1979 of active hydrothermal vent systems in the presentday oceans hannington et al. A combined fluid inclusion and spb isotope study of the.
Volcanogenic massive sulfide deposits in ophiolite complexes are usually attributed to the cyprus type. The widespread recognition of modern seafloor volcanogenic massive sulfide deposits and associated hydrothermal vent fluids and vent fauna has been one of the most astonishing discoveries in the last 50 years, and seafloor exploration and scientific studies have contributed much to our understanding of oreforming processes and the tectonic. Physical property analysis and preserved relative amplitude. The horne deposit is located just beyond the southern limit of the noranda caul. Volcanogenic massive sulfide occurrence model usgs. The sulfides accumulate on the seafloor or just below it, and precipitate from. Vms will emit black plume of hot water venting from one of the chimneys. Frater school of applied geology, the south australian institute of technology, p. The zambujal ore deposit, nevescorvo mine, is a zoned volcanogenic sulfide deposit of copper and zinc, with massive ores at the top and stockwork ores at the bottom. Felsic, bimodalmafic, and mafic volcanogenic massive sulfide deposits. There are a lot of volcanogenic massive sulfide vms deposits and numerous mineral occurrences of this type of mineralization in iran. The data was recently used for mineraldeposit density models mosier and others, 2007. Wherever volcanism occurs beneath the sea, the potential exists for seawater to penetrate the volcanic rocks, become heated by a magma chamber, and react with the enclosing rocksin the process concentrating geochemically scarce metals and so forming a hydrothermal solution. This statistic shows the share of metal produced worldwide from volcanogenic massive sulfide deposits vms as of 2019, by metal type.
Volcanogenic massive sulfide ore deposits wikipedia. The term has been coined by mineral explorers to differentiate the modern deposit from the ancient. Volcanogenic massive sulfide deposits of the world. Geostatistical methodology to characterize volcanogenic.
A essential characteristics of an idealized volcanogenic massive sulfide deposit modified after lydon, 1984, and b the basic features of the pingshui massive sulfide deposit. They typically occur as lenses of polymetallic massive sulphide that form at or near the seafloor in submarine volcanic environments. Volcanogenic massive sulphide deposits,types and its origin slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Seafloor massive sulfide deposits or sms deposits, are modern equivalents of ancient volcanogenic massive sulfide ore deposits or vms deposits. Geology and mineralization of the banfield and rowley volcanogenic massive sulfide deposits, douglas co. Volcanogenic massive sulfide deposits one hundredth. Vms deposits of the world investing news network february 24th, 2011 although not the worlds primary source of copper, volcanogenic massive sulfide deposits or. Manned submersible studies have delineated a large and actively growing kurokotype volcanogenic massive sulfide deposit 400 kilometers south of tokyo in myojin knoll submarine caldera. This one covers volcanogenic massive sulfide vms and sedimentary exhalative. Sms deposits were first recognized during the exploration of the deep oceans and the mid ocean ridge spreading. A comparison of the horne volcanogenic massive sulfide.
Volcanogenic massive sulfide deposits of the world 2015 11. Volcanogenic massive sulfide deposits enriched in gold. Volcanogenic massive sulfide ore deposit this article includes a list of related items that share the same name or similar names. A volcanogenic massive sulfide magnetite deposit k. Geology of the golden grove prospect, western australia. Pdf mesozoic volcanogenic massive sulfide vms deposits.
Mesozoic volcanogenic massive sulfide vms deposits in. The ming deposit, newfoundland appalachians, is a metamorphosed upper greenschist to lower amphibolite facies, cambroordovician, bimodalmafic volcanogenic massive sul. Youll remember this cross section from reads on both porphyry deposits and epithermal, in the case. Mineral potential for volcanogenic massive sulfide. Electromagnetic, earth resistivity, and principally gravimetry methods played major roles in. Vms deposits can be subdivided into different types, and iranian vms deposits represent all of the recognized types. Vectoring volcanogenic massive sulphide mineralization at. Sulfide and hydrothermal plumes also occur on ultraslow spreading ridges in the northern atlantic at gakkel ridge baker et al. Volcanogenic massive sulfide deposits are forming today on the seafloor around undersea volcanoes along many mid ocean ridges, and within backarc basins and forearc rifts. Vms share of global metal production by type 2019 statista. Vms volcanogenic massive sulphide deposits and nicuco type magmatic massive sulphide deposits volcanicassociated massive sulphide vms deposits occur throughout the world and throughout the geological time column in virtually every tectonic domain that has submarine volcanic rocks as an important constituent. The exhalative jaspilite in the pingshui deposit commonly appears in tunnels higher than the.
The models and database presented in this report are an update of earlier publications about volcanogenic massive sulfide vms deposits. Other articles where volcanogenic massive sulfide is discussed. A new period of volcanogenic massive sulfide formation in. Volcanogenic massive sulfide deposits vms are grouped into five lithostratigraphic types, using sequence boundaries defined by major timestratigraphic breaks, faults, or major subvolcanic intrusions. Geology and mineralization of the banfield and rowley volcanogenic massive sulfide deposits. Geophysical characteristics of volcanogenic massive sulfide deposits figure 71. Schematic diagram of the modern transatlantic geothermal tag sulfide deposit on the midatlantic ridge, depicting a cross section of a volcanogenic massive sulfide deposit with concordant semi massive to massive sulfide lens underlain by a. Metallogeny of volcanogenic massive sulfide deposits of iran. Rare earth element patterns typically associated with vms mineralization are illustrated by samples from a small vms deposit fig gs83 within the same volcanic sequence, but. The sulfide body is located on the caldera floor at a depth of 1210 to 60 meters, has an area of 400 by 400 by 30 meters, and is notably rich in gold and silver. In this paper, 867 deposits were used to construct revised grade and tonnage models. Mineral potential for volcanogenic massive sulfide deposits. Since publication of the vms synthesis in the economic geology seventyfifth.
During the past 50 years, geological, geochemical, and geophysical methods were utilized in the exploration of volcanogenic massive sulfide deposits at nevescorvo. Mineralogy, mineral chemistry, and genesis of precious metal. Graduate thesis or dissertation geology and mineralization. These vms deposits include what were formerly classified as kuroko, cyprus, and besshi deposits. An original database was used to establish statistically meaningful criteria for identification of deposits with large gold reserves andor that are. Pdf geophysical characteristics of volcanogenic massive. Jan 22, 2016 volcanogenic massive sulfide occurrence model 1. Mineralogy, mineral chemistry, and genesis of precious. The main methodology hereby proposed combines geostatistical techniques so that an improved stochastic geological model of the zambujal deposit. Geological survey volcanogenic massive sulfide occurrence model sea level backarc basin island arc midocean ridge oceanic intraplate volcanoes continental margin arc continental riftbackarc basin subducting slab.
Metallogeny of volcanogenic massive sulfide deposits of. Youll remember this cross section from reads on both porphyry deposits and epithermal, in the case of vms deposit, we. They have long been a major source of cu, zn, and pb, and a. Volcanogenic massive sulphide deposits alan galley, mark hannington and ian jonasson geological survey of canada, 601 booth street, ottawa, on, k1a oe8 email. Grade and tonnage models are useful in quantitative mineralresource assessments. Box 1, ingle farm, south australia 5098, australia abstract the golden grove prospect is one of the few potentially economic deposits of cuzn sulfides known from the western australian shield. Ordoviciansilurian volcanogenic massive sulfide deposits on southern prince of wales island and the barrier islands, southeastern alaska by george e.
Volcanogenic massive sulfide deposits of the world a video showing the distribution of vms deposits using usgs data last updated 2010. Abstract volcanogenic massive sulfide deposits contain variable amounts of gold, both in terms of average grade and total gold content, with some vms deposits hosting worldclass gold mines with more than 100 t au. The deposits are characterized by copper or copperzinc ores that are enriched in ni, co, and in places mn and. Geodiversity of hydrothermal processes along the midatlantic. In some of these, gold reserves exceed 100 t, while the gold grade reaches several dozens ppm. The kuroko and related volcanogenic massive sulfide deposits.
High sulfidation deposits in the volcanogenic massive. Volcanogenic massive sulfide deposits vms are a thoroughly researched deposit class. Economic geology monograph 5 the kuroko and related volcanogenic massive sulfide deposits iiiroshi ohmoto and brian j. Volcanogenic massive sulfide deposits of ophiolite. Volcanogenic massive sulfide deposits vms constitute the most abundant type of mesozoic ore deposits inmexico, especially regarding precenomanian deposits.
Volcanogenic massive sulfide deposits of the world database. The boliden goldrich volcanogenic massive sulfide deposit. Our new models are based on a reclassification of deposits based on host lithologies. The density of volcanogenic massive sulfide deposits on land mosier et al. Apr 15, 2016 volcanogenic massive sulphide deposits,types and its origin slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising.
Volcanogenic massive sulfide vms deposits are the most conspicuous type of deposits that formed during the mesozoic in mexico. Volcanogenic massive sulfide vms deposits typically have strong geophysical contrasts with their host rocks because of the substantial differences in. Volcanogenic massive sulfide vms deposits typically have strong geophysical contrasts with their host rocks because of the substantial differences in physical and chemical properties between the. Jul 23, 2019 this statistic shows the share of metal produced worldwide from volcanogenic massive sulfide deposits vms as of 2019, by metal type. They associate with basaltic volcanics that are formed in midocean or backarc spreading centers and much less frequently in intraplate settings. A new period of volcanogenic massive sulfide formation in the yilgarn. Geodiversity of hydrothermal processes along the mid. Since publication of the vms synthesis in the economic geology seventyfifth anniversary volume franklin et al. If you continue browsing the site, you agree to the use of cookies on this website. Geophysical characteristics of volcanogenic massive sulfide. Part 7 of an 11 part series introducing ore deposit geology to nontechnical people. Volcanogenic massive sulphide vms deposits are also known as volcanicassociated, volcanichosted, and volcanosedimentaryhosted massive sulphide deposits. An original database was used to establish statistically meaningful criteria for identification of deposits with large gold reserves.
They occur along the pacific margin, from baja california to the guerrero state, and in chihuahua fig. The boliden goldrich volcanogenic massive sulfide deposit, skellefte district, sweden. Electromagnetic, earth resistivity, and principally gravimetry methods played major roles in the geophysical exploration of the area. If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article. H 1999 volcanogenic gold in the massive sulfide environment. The deposits are characterized by copper or copperzinc ores that are enriched in ni, co, and in places mn and as, but are very poor in pb and. A kurokotype polymetallic sulfide deposit in a submarine. Skinner, editohs tile economic geology pui3lisiiinc company. Jan 31, 20 the data was recently used for mineraldeposit density models mosier and others, 2007. Vms deposits of the world inn investing news network. Geophysical characteristics of volcanogenic massive. Wherever volcanism occurs beneath the sea, the potential exists for seawater to penetrate the volcanic rocks, become heated by a magma chamber, and react with the enclosing rocksin the process concentrating geochemically scarce metals and so forming a. Seventeen of the smaller deposits are located within a volcanic subsidence structure referred to as the noranda cauldron. Horne volcanogenic massive sulfide deposit and 18 smaller economic massive sulfide deposits fig.
Geological survey volcanogenic massive sulfide occurrence model sea level backarc basin island arc midocean ridge oceanic intraplate volcanoes continental margin arc continental riftbackarc basin subducting slab continental lithosphere mantle plume. Sulfide and hydrothermal plumes also occur on ultraslow spreading ridges in the northern atlantic. Pdf volcanogenic massive sulfide vms deposits of turkey occur in three tectonically distinct regions. High sulfidation deposits in the volcanogenic massive sulfide. A new period of volcanogenic massive sulfide formation in the. Volcanogenic massive sulfide vms deposits are important sources of base cu, zn pb and precious au, ag metals.
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