If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article. Frater school of applied geology, the south australian institute of technology, p. Vms deposits of the world investing news network february 24th, 2011 although not the worlds primary source of copper, volcanogenic massive sulfide deposits or. Volcanogenic massive sulphide deposits linkedin slideshare.
A comparison of the horne volcanogenic massive sulfide. Volcanogenic massive sulfide ore deposit this article includes a list of related items that share the same name or similar names. Mineral exploration companies are exploring for seafloor massive sulfide deposits. Volcanogenic massive sulfide ore deposits wikipedia. 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 horne deposit is located just beyond the southern limit of the noranda caul. A new period of volcanogenic massive sulfide formation in the yilgarn. Metallogeny of volcanogenic massive sulfide deposits of iran. These vms deposits include what were formerly classified as kuroko, cyprus, and besshi deposits. 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. They typically occur as lenses of polymetallic massive sulphide that form at or near the seafloor in submarine volcanic environments. The density of volcanogenic massive sulfide deposits on land mosier et al. Vms share of global metal production by type 2019 statista. 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.
Sms deposits were first recognized during the exploration of the deep oceans and the mid ocean ridge spreading. 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. Vectoring volcanogenic massive sulphide mineralization at. They have long been a major source of cu, zn, and pb, and a. Since publication of the vms synthesis in the economic geology seventyfifth anniversary volume franklin et al. Geostatistical methodology to characterize volcanogenic. 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 volcanogenic massive sulfide magnetite deposit k. Volcanogenic massive sulphide deposits alan galley, mark hannington and ian jonasson geological survey of canada, 601 booth street, ottawa, on, k1a oe8 email. They occur along the pacific margin, from baja california to the guerrero state, and in chihuahua fig. Economic geology monograph 5 the kuroko and related volcanogenic massive sulfide deposits iiiroshi ohmoto and brian j. Jul 23, 2019 this statistic shows the share of metal produced worldwide from volcanogenic massive sulfide deposits vms as of 2019, by metal type. Vms deposits can be subdivided into different types, and iranian vms deposits represent all of the recognized types. Volcanogenic massive sulfide deposits in ophiolite complexes are usually attributed to the cyprus type.
Volcanogenic massive sulfide deposits one hundredth. Youll remember this cross section from reads on both porphyry deposits and epithermal, in the case. 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. A new period of volcanogenic massive sulfide formation in. There are a lot of volcanogenic massive sulfide vms deposits and numerous mineral occurrences of this type of mineralization in iran. Volcanogenic massive sulfide ore deposit wikipedia. Geodiversity of hydrothermal processes along the mid. Mineral potential for volcanogenic massive sulfide. Geodiversity of hydrothermal processes along the midatlantic. Horne volcanogenic massive sulfide deposit and 18 smaller economic massive sulfide deposits fig. Other articles where volcanogenic massive sulfide is discussed. A combined fluid inclusion and spb isotope study of the. If we start with vms volcanogenic massive sulphide ore deposits and their mineralization we see from this image shows some of the sulphide chimneys associated with the model black smoker vms deposit.
Volcanogenic massive sulfide occurrence model usgs. Geology and mineralization of the banfield and rowley volcanogenic massive sulfide deposits, douglas co. Following the discovery in 1979 of active hydrothermal vent systems in the presentday oceans hannington et al. 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. The kuroko and related volcanogenic massive sulfide deposits. The update was necessary because of new information. In some of these, gold reserves exceed 100 t, while the gold grade reaches several dozens ppm. Volcanogenic massive sulfide deposits vms are grouped into five lithostratigraphic types, using sequence boundaries defined by major timestratigraphic breaks, faults, or major subvolcanic intrusions. Our new models are based on a reclassification of deposits based on host lithologies. Grade and tonnage models are useful in quantitative mineralresource assessments.
Seventeen of the smaller deposits are located within a volcanic subsidence structure referred to as the noranda cauldron. The gold content of volcanogenic massive sulfide deposits. An original database was used to establish statistically meaningful criteria for identification of deposits with large gold reserves. 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. High sulfidation deposits in the volcanogenic massive sulfide. Volcanogenic massive sulphide deposits,types and its origin slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. An original database was used to establish statistically meaningful criteria for identification of deposits with large gold reserves andor that are. The deposits are characterized by copper or copperzinc ores that are enriched in ni, co, and in places mn and. Mineralogy, mineral chemistry, and genesis of precious metal. Geology and mineralization of the banfield and rowley volcanogenic massive sulfide deposits. Metallogeny of volcanogenic massive sulfide deposits of. They associate with basaltic volcanics that are formed in midocean or backarc spreading centers and much less frequently in intraplate settings. Pdf mesozoic volcanogenic massive sulfide vms deposits. Volcanogenic massive sulfide vms deposits typically have strong geophysical contrasts with their host rocks because of the substantial differences in.
Mesozoic volcanogenic massive sulfide vms deposits in mexico. 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. Volcanogenic massive sulphide vms deposits are also known as volcanicassociated, volcanichosted, and volcanosedimentaryhosted massive sulphide deposits. The boliden goldrich volcanogenic massive sulfide deposit, skellefte district, sweden. Sulfide and hydrothermal plumes also occur on ultraslow spreading ridges in the northern atlantic. Physical property analysis and preserved relative amplitude. Volcanogenic massive sulfide deposits vms constitute the most abundant type of mesozoic ore deposits inmexico, especially regarding precenomanian deposits. Mineralogy, mineral chemistry, and genesis of precious. The ming deposit, newfoundland appalachians, is a metamorphosed upper greenschist to lower amphibolite facies, cambroordovician, bimodalmafic volcanogenic massive sul.
Since publication of the vms synthesis in the economic geology seventyfifth. A kurokotype polymetallic sulfide deposit in a submarine. Volcanogenic massive sulfide vms deposits are important sources of base cu, zn pb and precious au, ag metals. The main methodology hereby proposed combines geostatistical techniques so that an improved stochastic geological model of the zambujal deposit. The data was recently used for mineraldeposit density models mosier and others, 2007. 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. 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. 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. Electromagnetic, earth resistivity, and principally gravimetry methods played major roles in the geophysical exploration of the area. Electromagnetic, earth resistivity, and principally gravimetry methods played major roles in. Volcanogenic massive sulfide deposits of the world a video showing the distribution of vms deposits using usgs data last updated 2010. Pages in category volcanogenic massive sulfide ore deposits the following 8 pages are in this category, out of 8 total. 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. Skinner, editohs tile economic geology pui3lisiiinc company.
Ordoviciansilurian volcanogenic massive sulfide deposits on southern prince of wales island and the barrier islands, southeastern alaska by george e. Vms deposits of the world inn investing news network. 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. The sulfides accumulate on the seafloor or just below it, and precipitate from. Geophysical characteristics of volcanogenic massive sulfide deposits figure 71. Mesozoic volcanogenic massive sulfide vms deposits in. Volcanogenic gold in the massive sulfide environment. Sulfide and hydrothermal plumes also occur on ultraslow spreading ridges in the northern atlantic at gakkel ridge baker et al. Volcanogenic massive sulfide deposits enriched in gold. Geology of the golden grove prospect, western australia. Volcanogenic massive sulfide deposits of the world database. Geophysical characteristics of volcanogenic massive.
Geophysical characteristics of volcanogenic massive sulfide. Jan 22, 2016 volcanogenic massive sulfide occurrence model 1. Part 7 of an 11 part series introducing ore deposit geology to nontechnical people. Felsic, bimodalmafic, and mafic volcanogenic massive sulfide deposits. In this paper, 867 deposits were used to construct revised grade and tonnage models. The models and database presented in this report are an update of earlier publications about volcanogenic massive sulfide vms deposits. H 1999 volcanogenic gold in the massive sulfide environment. Graduate thesis or dissertation geology and mineralization. The term has been coined by mineral explorers to differentiate the modern deposit from the ancient. Volcanogenic massive sulfide vms deposits are stratiform accumulations of sulfide minerals that precipitated at or near the sea floor and that are spatially, temporally, and genetically associated with arc volcanic rocks barrie and hannington, 1999, franklin et al. Volcanogenic massive sulfide vms deposits are the most conspicuous type of deposits that formed during the mesozoic in mexico. Mineral potential for volcanogenic massive sulfide deposits. This one covers volcanogenic massive sulfide vms and sedimentary exhalative.
If you continue browsing the site, you agree to the use of cookies on this website. Jan 31, 20 the data was recently used for mineraldeposit density models mosier and others, 2007. 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. The boliden goldrich volcanogenic massive sulfide deposit. 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. High sulfidation deposits in the volcanogenic massive.
The exhalative jaspilite in the pingshui deposit commonly appears in tunnels higher than the. Vms will emit black plume of hot water venting from one of the chimneys. Pdf geophysical characteristics of volcanogenic massive. Volcanogenic massive sulfide deposits of ophiolite. Volcanogenic massive sulfide deposits vms are a thoroughly researched deposit class. This statistic shows the share of metal produced worldwide from volcanogenic massive sulfide deposits vms as of 2019, by metal type. A new period of volcanogenic massive sulfide formation in the. Volcanogenic massive sulfide deposits of the world 2015 11. Volcanogenic massive sulfide deposits of the world. Potential for base and preciousmetalbearing volcanogenic massive sulfide deposits vms exists in mauritania in the greenstone belts of the southwestern rgueibat shield and in the allochthonous portions of the central and southern mauritanides. Depositional setting and deformation of massive sulfide deposits, ironformation, and associated alteration in the manitouwadge greenstone belt, superior province, ontario economic geology systematics of hydrothermal alteration at the falun base metal sulfide deposit and implications for ore genesis and exploration, bergslagen ore district.
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