Volcanogenic massive sulfide deposits pdf merge

Seafloor massive sulfide deposits or sms deposits, are modern equivalents of ancient volcanogenic massive sulfide ore deposits or vms deposits. Piercey,1 graham layne,1 john heslop,2 andrew hussey,2 and glenn piercey3. 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. Base metaldominated volcanogenic massive sulfide vms deposits are important global resources of zinc zn with many deposits having zn as the main commodity of production. Volcanogenic massive sulfide deposits vms are grouped into five lithostratigraphic types, using sequence boundaries defined by. Current indicated plus inferred resources for the two deposits. If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article. Some authors prefer the term volcanichosted to volcanogenic, because the latter has a direct genetlc connotation. Physical volcanology of volcanogenic massive sulfide deposits. Volcanogenic massive sulfide ore deposit infogalactic. Volcanogenic massive sulfide occurrence model usgs. Volcanogenic massive sulfide deposits of the worlddatabase and grade and tonnage models. 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.

School of geosciences and resources, china university of geosciences beijing, no. The former is more appropriate when discussions are made in comparison with the other important group of massive sulfide deposits, the sedimenthosted or shalehosted massive sulfide. Volcanogenic massive sulfide deposits of the worlddatabase. Volcanogenic massive sulfide deposits one hundredth. Volcanogenic massive sulphide deposits 143 ple bimodal definition of normal versus aurich vms deposits fig. Volcanichosted massive sulphide deposits vms volcanichosted or volcanogenic base and preciousmetal mineralization is typically hosted by, or associated with, submarine volcanic andor volcaniclastic rocks. Volcanogenic massive sulfide vms deposits are stratabound and sometimes stratiform lenses of polymetallic massive to semi massive sulfides, sulfidic sediments, disseminated replacement ores, and stockwork sulfide bearing veins that occur in submarine volcanic environments. Age and paleotectonic setting of volcanogenic massive. Geological understanding of volcanic massive sulphide vms deposits continues to. Volcanogenic massive sulfide ore deposit at kidd mine, timmins, ontario, canada, formed 2. Volcanogenic massive sulfide deposits vms are a thoroughly researched deposit class. During the past 50 years, geological, geochemical, and geophysical methods were utilized in the exploration of volcanogenic massive sulfide deposits at nevescorvo.

They form at or near the seafloor by syngenetic precipitation from mainly seawaterderived and metalenriched. Volcanogenic massive sulphide deposits alan galley, mark hannington and ian jonasson geological survey of canada, 601 booth street, ottawa, on, k1a oe8 email. Styles, textural evolution, and sulfur isotope systematics of curich sulfides from the cambrian whalesback volcanogenic massive sulfide deposit, central newfoundland, canada jonathan cloutier,1, stephen j. Vms deposits proexmin prospecting exploration minerals. Styles, textural evolution, and sulfur isotope systematics. Along with new concepts of ore deposition came new technology to aid in the search for mineral deposits. They typically occur as lenses of polymetallic massive sulphide that form at or near the seafloor in submarine volcanic. Vms deposits as well as innovative vms exploration techniques that span regional to depositscale methods. Constraints from upb age and pb isotope studies james k.

Major volcanogenic massive sulfide districts of the world. Volcanogenic massive sulfide deposits of the world. Rhyolite geochemical signatures and association with. Mineral deposit mineral deposit hydrothermal solution. Following the discovery in 1979 of active hydrothermal vent systems in the presentday oceans hannington et al. Age and paleotectonic setting of volcanogenic massive sulfide deposits in the guerrero terrane of central mexico. Mineraldeposit models combine the diverse geoscience information on. Hydrothermal mineral deposits are those in which hot water serves as a concentrating, transporting, and depositing agent. Volcanogenic massive sulphide vms deposits have made important contributions to the economic development of newfoundland over more than a century. Youll remember this cross section from reads on both porphyry deposits and epithermal, in the case of vms deposit, we. In the 1960s, a new concept of sulfide ore deposition related to volcanic activity volcanogenic massive sulfide deposits led to widespread exploration activity by numerous companies for this type of deposit in the lake superior region.

The term has been coined by mineral explorers to differentiate the modern deposit from the ancient. Zambujal orebody, the blend between ores and the mining company. Vms will emit black plume of hot water venting from one of the chimneys. The models and database presented in this report are an update of earlier publications about volcanogenic massive sulfide vms deposits. Further research has indicated a more complex spectrum of conditions for the. Processes and examples in modern and ancient settings. These vms deposits include what were formerly classified as kuroko, cyprus, and besshi deposits. Pdf geophysical characteristics of volcanogenic massive sulfide. Pdf multiple sulfur isotope analyses support a magmatic. Mineraldeposit models combine the diverse geoscience information on geology, mineral occurrences, geophysics, and geochemistry used in resource. Pdf volcanogenic massive sulfide occurrence model pat. Although volcanogenic rocks are generally the host, unrelated sedimentary marine rocks may be present. Volcanogenic massive sulfide ore deposit wikipedia. 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 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. Geostatistical methodology to characterize volcanogenic massive. The gold content of volcanogenic massive sulfide deposits. Sms deposits were first recognized during the exploration of the deep oceans and the mid ocean ridge spreading centers in the early 1960s. Grade and tonnage models are useful in quantitative mineralresource assessments.

Geophysical characteristics of volcanogenic massive. Pdf volcanogenic massive sulphide deposits semantic. Vms deposits of the world inn investing news network. Mortensen, mineral deposit research unit, university of british columbia, 6339 stores road, vancouver, british columbia, canada v6t 1z4 brian v. This originally was intended to identify deposits that are transitional between vms and epithermal deposits e. Studies of ancient volcanogenic massive sulfide vms deposits have. 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. The boundary volcanogenic massive sulfide vms deposit 0. His consulting work is focused on new discoveries of volcanogenic massive sulfide deposits, orogenic and porphyrystyle gold in precambrian terrains, magmatic nickelcopper sulfides and various types of uranium deposits.

Submarine volcanic processes, deposits, and environments favorable for the location of volcanicassociated massive sulfide deposits. Metallogenic province and large scale mineralization of. 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. A general geologic framework for volcanogenic massive sulfide mineralization was proposed for the western end of the belt dematties, 1989. Metallogenic province and large scale mineralization of volcanogenic massive sulfide deposits in china changming wang present address.

Geophysical characteristics of volcanogenic massive sulfide deposits figure 71. The discovery of the romero vms deposit and its bearing. 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. Lithostratigraphic, hydrothermal, and tectonic setting of. This paper is an expansion of that communication and summarizes important geologic features which characterize volcanogenic massive sulfide mineralization identified in the belt thus far. Compared to vms deposits, sedex deposits are fewer in number but generally an order of magnitude larger goodfellow, 2000. This article includes a list of related items that share the same name or similar names. 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.

Previous studies have identified goldrich vms as having an average gold grade, expressed in gt, exceeding the total abundance of base metals, expressed in wt. The setting, style, and role of magmatism in the formation of volcanogenic massive sulfide deposits stephen j. Vms deposits can be classified into znrich, zinciferous, and znanomalous based on global geological resource data. Volcanogenic massive sulfide deposits request pdf researchgate. The setting, style, and role of magmatism in the formation. 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. Sedex deposits are major sources of zinc and lead, and can be. A kurokotype polymetallic sulfide deposit in a submarine. Seafloor hydrothermal deposits include sedimentary exhalative deposits sedex, volcanogenic massive sulfide vms, and besshi massive sulfide deposits. 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. H 1999 volcanogenic gold in the massive sulfide environment. Multiple sulfur isotope analyses support a magmatic model for the volcanogenic massive sulfide deposits of the teutonic bore. Multiple sulfur isotope analyses support a magmatic model for the volcanogenic massive sulfide deposits of the teutonic bore volcanic complex, yilgarn craton, western australia.

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