 | | Report (chapter) | | 25, 2015 Hydrothermal deposits and metalliferous sediments from TAG, 26~ Mid-Atlantic Ridge R A C H E...Abstract: The Trans-Atlantic Geotraverse (TAG) hydrothermal site at 26~ on the Mid-Atlantic Ridge has been...of many studies since the early 1970s. The hydrothermal field includes a wide variety of deposits ranging...different styles of venting and the evolution of the hydrothermal system over time. Metalliferous sediments in...mass wasting of mound features and fall out of plume particulates. The active TAG mound was drilled by |  | | Journal (article/letter/editorial) | | Seafloor Massive Sulfide Mounds at the TAG, Mid-Atlantic Ridge Berit Lehrmann 1, *, Iain J. Stobbs 2 ...located in the Trans-Atlantic Geotraverse (TAG) hydrothermal area of the Mid-Atlantic Ridge were drilled...remobilized early in the mound evolution and forms either a layer in the upper part of the mound or has been totally...seafloor massive sulfides; drilling; TAG hydrothermal area; Mid-Atlantic Ridge 1. Introduction Since the discovery...discovery of the first hydrothermal venting at the Galápagos Rift in 1977 [1], the number of discovered |  | Murton, Bramley J., Lehrmann, Berit, Dutrieux, Adeline M., Martins, Sofia, de la Iglesia, Alba Gil, Stobbs, Iain J., Barriga, Fernando J.A.S., Bialas, Jörg, Dannowski, Anke, Vardy, Mark E., North, Laurence J., Yeo, Isobel A.L.M., Lusty, Paul A.J., Petersen, Sven (2019) Geological fate of seafloor massive sulphides at the TAG hydrothermal field (Mid-Atlantic Ridge) Ore Geology Reviews, 107. 903-925 doi:10.1016/j.oregeorev.2019.03.005 | Journal (article/letter/editorial) | | seafloor massive sulphides at the tag hydrothermal field (midatlantic ridge) Bramley J. Murton, Berit Lehrmann...seafloor massive sulphides at the tag hydrothermal field (mid-atlantic ridge), Ore Geology Reviews (2019)...SEAFLOOR MASSIVE SULPHIDES AT THE TAG 3 HYDROTHERMAL FIELD (MID-ATLANTIC RIDGE) 4 Bramley J. Murton 1*,...fbarriga@fc.ul.pt 4 GEOMAR Helmholtz Center for Ocean Research Kiel, Wischhofstrasse 1-3, 24148 ...(SMS) deposits, containing abundant copper, zinc, gold and silver, have been the subject 27 of recent |  | Grant, Hannah L.J., Hannington, Mark D., Petersen, Sven, Frische, Matthias, Fuchs, Sebastian H. (2018) Constraints on the behavior of trace elements in the actively-forming TAG deposit, Mid-Atlantic Ridge, based on LA-ICP-MS analyses of pyrite. Chemical Geology, 498. 45-71 doi:10.1016/j.chemgeo.2018.08.019 | Journal (article/letter/editorial) | | trace elements in the activelyforming TAG deposit, Mid-Atlantic Ridge, based on LA-ICP-MS analyses of pyrite...trace elements in the actively-forming TAG deposit, Mid-Atlantic Ridge, based on LA-ICP-MS analyses of pyrite...trace elements in the actively-forming TAG deposit, Mid-Atlantic Ridge, based on LA-ICP-MS analyses of pyrite...Sebastian H. Fuchs1 GEOMAR Helmholtz Center for Ocean Research Kiel, Wischhofstrasse 1-3, 24148 Kiel,...University of Ottawa, Advanced Research RI SC Complex, 25 Templeton Street, Ottawa, K1N 6N5, Canada, |  | | Journal (article/letter/editorial) | | presently forming VMS deposit: TAG hydrothermal mound, Mid-Atlantic Ridge, 26°°N Received: 16 November...drilling of the active TAG hydrothermal mound at 26°N on the Mid-Atlantic Ridge provided the ®rst insights...massive sul®de (VMS) deposit on a sediment-free mid-ocean ridge. Sul®de precipitation at this site started...200-m diameter, 50-m-high pyritic mound and a silici®ed stockwork complex containing approximately 3.9 million...sea¯oor. The periodic release of high-temperature hydrothermal ¯uids at the same location for several thousand |  | | Report (chapter) | | Precipitation of hydrothermal sediments on the active TAG mound: implications for ochre formation H.... A. M I L L S & R. W. N E S B I T T School of Ocean and Earth Science, Southampton Oceanography Centre...drilling studies of the active TAG hydrothermal mound (26°N, Mid-Atlantic Ridge) have led to new models of...Metalliferous sediments from the top of the hydrothermal mound accumulate from a combination of processes...fluids that percolate through the mound. Geochemical proxies of hydrothermal processes allow identification |  | | Journal (article/letter/editorial) | | seafloor hydrothermal systems: metalliferous deposits from the TAG hydrothermal area, 26’N Mid-Atlantic Ridge...from the TAG hydrothermal area, 26”N on the Mid-Atlantic Ridge, reveal evidence of release of ocean crust-derived...Is60s ratios of sulfide samples from the active TAG mound vary between 8.7 and 1.3. The highest ratios are...evidence of both entrainment of seawater into hydrothermal fluids and the addition of seawater OS to samples...oxidation. Several sulfide samples from the active TAG mound have ls70s/ ls60s ratios lower than the inferred |  | | Journal (article/letter/editorial) | | deposits: ancient and modern Peter M. Herzig Phil. Trans. R. Soc. Lond. A 1999 357, doi: 10.1098/rsta.1999...the article or click here To subscribe to Phil. Trans. R. Soc. Lond. A go to: http://rsta.royalsocietypublishing...metals (copper, zinc, lead, tin), precious metals (gold, silver), and a number of special metals (e.g. indium...modern analogues of massive sulphide deposits and hydrothermal systems are presently known at the modern sea-floor...Fuca Ridge, and in the TAG deposit at the Mid-Atlantic Ridge. Currently, mining of hydrothermal deposits |  | | Journal (article/letter/editorial) | | geochemistry of hydrothermal deposits from the active TAG Mound, 26°N Mid-Atlantic Ridge RACHEL A. MILLSt...geochemistry of various phases from the active TAG hydrothermal mound has been examined and related to their...their mineralogy and fluid chemistry. The mound deposits range from black and white smoker chimneys, massive...anhydrite within the TAG mound is the major mechanism for removal of REE during mound circulation and 0...from the white smoker chimneys. Oxides from the mound fall into three different categories with distinct |  | | Journal (article/letter/editorial) | | influences on concentrations of trace metals in hydrothermal fluids SIMONE METZ and JOHN H. TREFRY* Department...metals in hydrothermal solutions from the southern Juan de Fuca Ridge (SJFR) and the TAG Hydrothermal Field...Field on the Mid-Atlantic Ridge are influenced by the combined effects of source rock composition, brine–seawater...brine–seawater mixing and complex interplay among various metals and minerals deposited and remineralized...however, concentrations of Cu in 363°C fluids at the TAG site are well above values determined from seawater/basalt |  | | Report (issue) | | Kasahara, Pavel Izbekov, and Johnathan Lees (Eds.) 173 Ocean Circulation: Mechanisms and Impacts—Past and Future...Ellen R. Stofan, and Thomas E. Cravens (Eds.) 177 Ocean Modeling in an Eddying Regime Matthew Hecht and...Hasumi (Eds.) 178 Magma to Microbe: Modeling Hydrothermal Processes at Oceanic Spreading Centers Robert... S. Reeve, and Lee D. Slater (Eds.) 185 Indian Ocean Biogeochemical Processes and Ecological Variability...John Gash, and Pedro Silva Dias (Eds.) 187 Surface Ocean–Lower Atmosphere Processes Corinne Le Quèrè and |  | Keith, Manuel, Häckel, Florian, Haase, Karsten M., Schwarz-Schampera, Ulrich, Klemd, Reiner (2016) Trace element systematics of pyrite from submarine hydrothermal vents. Ore Geology Reviews, 72. 728-745 doi:10.1016/j.oregeorev.2015.07.012 | Journal (article/letter/editorial) | | element systematics of pyrite from submarine hydrothermal vents Manuel Keith a,⁎, Florian Häckel b, Karsten...elements Hydrothermal sulfides Laser Ablation ICP–MS VHMS a b s t r a c t Submarine hydrothermal sulfide...sulfide ores occur at mid-ocean ridges, intra-oceanic arcs and in back-arc basins associated with host rocks...submarine hydrothermal vent fields at different plate-tectonic settings including the Indian and Mid-Atlantic...nano-particles. Bismuth is enriched in pyrite from hydrothermal systems that contain a sedimentary component |  | | Journal (article/letter/editorial) | | subseafloor root zone of the TAG hydrothermal system, 268 N Mid-Atlantic Ridge Dionysis I. Foustoukos*, W...applicable to the Trans-Atlantic Geo-Traverse (TAG) hydrothermal system at 268 N, Mid-Atlantic Ridge. The mag...form this mineral assemblage during subseafloor hydrothermal alteration, however, requires elevated fluid...the low H2S(aq) and mFe / mCu ratios observed at TAG vent fluids are consistent with constraints imposed... Available chemical data confirm that the TAG hydrothermal system has experienced elevated fluid / rock |  | | Journal (article/letter/editorial) | | processes that modify massive sulphid systems after hydrothermal circulation has ceased and cold oxygen-rich...our understanding of the ‘recently’ extinct hydrothermal systems, and provide information for the potential...Barbara] at 07:58 20 June 2016 Reed, M. H. 1997. Hydrothermal alteration and its relationship to ore fluid...fluid composition, in Geochemistry of Hydrothermal Ore Deposits, (ed. H. L. Barnes), 3rd Edition, 303–366;...application to modeling hydrothermal processes, in Techniques in hydrothermal ore deposits geology, (eds |  | GLYNN, S, MILLS, R, PALMER, M, PANCOST, R, SEVERMANN, S, BOYCE, A (2006) The role of prokaryotes in supergene alteration of submarine hydrothermal sulfides. Earth and Planetary Science Letters, 244 (1) 170-185 doi:10.1016/j.epsl.2006.01.065 | Journal (article/letter/editorial) | | prokaryotes in supergene alteration of submarine hydrothermal sulfides S. Glynn a,b , R.A. Mills a,⁎, M.R...c , S. Severmann d , A.J. Boyce e a School of Ocean and Earth Science, National Oceanography Centre...activity in supergene reactions within submarine hydrothermal sulfidic sediments. Data are presented for two...from the periphery of the inactive Alvin hydrothermal mound. The limit of oxygenated seawater penetration...associated with mid-ocean ridge hydrothermal systems [3] and eastern equatorial Pacific open ocean sites [4] |  | Popoola, Samuel Olatunde, Han, Xiqiu, Wang, Yejian, Qiu, Zhongyan, Ye, Ying, Cai, Yiyang (2019) Mineralogical and Geochemical Signatures of Metalliferous Sediments in Wocan-1 and Wocan-2 Hydrothermal Sites on the Carlsberg Ridge, Indian Ocean. Minerals, 9 (1) 26 doi:10.3390/min9010026 | Journal (article/letter/editorial) | | in Wocan-1 and Wocan-2 Hydrothermal Sites on the Carlsberg Ridge, Indian Ocean Samuel Olatunde Popoola...Yiyang Cai 2 1 2 3 * Department of Marine Science, Ocean College, Zhejiang University, Zhoushan 316021, China;...active hydrothermal site (Wocan-1) and inactive hydrothermal site (Wocan-2) from Wocan Hydrothermal Field...Field, on the Carlsberg Ridge (CR), northwest Indian Ocean. We aim to understand the spatial variations...conditions and the intensity of hydrothermal circulations in the Wocan hydrothermal systems. Sediment samples |  | | Journal (article/letter/editorial) | | Seafloor Massive Sulfide Deposits on an Arctic Mid-Ocean Ridge: Application of grade and tonnage models Cyril...Seafloor Massive Sulfide Deposits on an Arctic Mid-Ocean Ridge: Application of grade and tonnage models, Ore...Seafloor Massive Sulfide Deposits on an Arctic Mid-Ocean Ridge: Application of grade and tonnage models Cyril...48 56 Keywords seafloor massive sulfide, mid-ocean ridge, resource assessment, grade, tonnage Abstract...territorial waters on the deep ocean floor of the Arctic region, i.e. the Mohns Ridge (71-73°N). Among the variety |  | Fallon, Emily, Frische, Matthias, Petersen, Sven, Brooker, Richard, Scott, Thomas (2019) Geological, Mineralogical and Textural Impacts on the Distribution of Environmentally Toxic Trace Elements in Seafloor Massive Sulfide Occurrences. Minerals, 9 (3) 162 doi:10.3390/min9030162 | Journal (article/letter/editorial) | | them. In this study, SMS samples from seven hydrothermal fields from various tectonic settings were investigated...[25–29], but also the surrounding deep or coastal ocean including background fauna (soft sediment benthos)...our lack of understanding of these unique and complex ecosystems. Whilst it has been demonstrated that...[44,49], with a natural mineral ore containing complex mixtures of metals with a range of oxidation states...the disposal of mine tailings in coastal and deep ocean can also provide an indication of sulfide mineral |  | Mills, R.A., Thomson, J., Elderfield, H., Hinton, R.W., Hyslop, E. (1994) Uranium enrichment in metalliferous sediments from the Mid-Atlantic Ridge. Earth and Planetary Science Letters, 124 (1) 35-47 doi:10.1016/0012-821x(94)00083-2 | Journal (article/letter/editorial) | | enrichment in metalliferous sediments from the Mid-Atlantic Ridge R.A. Mills a, J. Thomson b, H. Elderfield...Previous studies of metal-rich sediments at mid-ocean ridge spreading centres have suggested that U/Fe...from site to site. A suite of cores from the Mid-Atlantic Ridge has been analysed for U and Fe content and...controlling this enrichment. U/Fe ratios in fully oxidised TAG sediments are constant and approximately an order...sediments have been observed throughout the mid-ocean ridge system [l-4], provide an areally important |  | Syverson, Drew D., Scheuermann, Peter, Higgins, John A., Pester, Nicholas J., Seyfried, William E. (2018) Experimental partitioning of Ca isotopes and Sr into anhydrite: Consequences for the cycling of Ca and Sr in subseafloor mid-ocean ridge hydrothermal systems. Geochimica et Cosmochimica Acta, 236. 160-178 doi:10.1016/j.gca.2018.03.018 | Journal (article/letter/editorial) | | the cycling of Ca and Sr in subseafloor mid-ocean ridge hydrothermal systems Drew D. Syverson a,b,c,⇑, Peter...seawater and the oceanic crust at mid-ocean ridge (MOR) hydrothermal systems integrates various physiochemical...composition of high temperature vent fluids and coexisting ocean crust, and yet, little experimental data exist to...anhydrite and vent fluids sampled from the TAG hydrothermal system. Accordingly, anhydrite precipitation...chemical conditions characteristic of active MOR hydrothermal systems. Experimental data suggest that upon |  | | Journal (article/letter/editorial) | | Material from the Loki’s Castle Hydrothermal Vent on the Mohn’s Ridge Ben Snook 1, *, Kristian Drivenes... Abstract: Loki’s Castle on the Arctic Mid-Ocean Ridge (AMOR) is an area of possible seafloor massive...to characterise mineralised material from a hydrothermal vent system on the AMOR in detail for the first...zinc (hosted in sphalerite), as well as silver and gold. This reinforces the notion that slow spreading...Keywords: Seafloor sulphides; Norway; Arctic Mid Ocean Ridge; copper; zinc; mineralogy; ICP-ES/ MS; XRD; |  | Findlay, Alyssa J., Gartman, Amy, Shaw, Timothy J., Luther, George W. (2015) Trace metal concentration and partitioning in the first 1.5 m of hydrothermal vent plumes along the Mid-Atlantic Ridge: TAG, Snakepit, and Rainbow. Chemical Geology, 412. 117-131 doi:10.1016/j.chemgeo.2015.07.021 | Journal (article/letter/editorial) | | the first 1.5 meters of hydrothermal vent plumes along the Mid-Atlantic Ridge: TAG, Snakepit, and Rainbow...the first 1.5 meters of hydrothermal vent plumes along the Mid-Atlantic Ridge: TAG, Snakepit, and Rainbow...the first 1.5 meters of hydrothermal vent plumes along the Mid-Atlantic Ridge: TAG, Snakepit, and Rainbow...of Marine Science and Policy, College of Earth Ocean and Environment, University of Delaware 700 Pilottown...determine the significance of metal fluxes from hydrothermal vents, understanding the speciation, reactivity |  | Severmann, Silke, Mills, Rachel A., Palmer, Martin R., Telling, Jon P., Cragg, Barry, John Parkes, R. (2006) The role of prokaryotes in subsurface weathering of hydrothermal sediments: A combined geochemical and microbiological investigation. Geochimica et Cosmochimica Acta, 70 (7) 1677-1694 doi:10.1016/j.gca.2005.12.008 | Journal (article/letter/editorial) | | role of prokaryotes in subsurface weathering of hydrothermal sediments: A combined geochemical and microbiological...Telling b, Barry Cragg c, R. John Parkes c School of Ocean and Earth Science, National Oceanography Centre...Queen’s Rd., Bristol BS8 1RJ, UK c School of Earth, Ocean and Planetary Sciences, Cardiff University, Cardiff...from the inactive Alvin mounds within the TAG hydrothermal field was conducted to examine, for the first...role of prokaryotes in subsurface weathering of hydrothermal sediments. Results show that there has been |  | Keith, Manuel, Haase, Karsten M., Klemd, Reiner, Krumm, Stefan, Strauss, Harald (2016) Systematic variations of trace element and sulfur isotope compositions in pyrite with stratigraphic depth in the Skouriotissa volcanic-hosted massive sulfide deposit, Troodos ophiolite, Cyprus. Chemical Geology, 423. 7-18 doi:10.1016/j.chemgeo.2015.12.012 | Journal (article/letter/editorial) | | Sulfur isotopes Massive sulfides Stockwork ores Hydrothermal sulfides a b s t r a c t The Troodos ophiolite...Te, Bi and Cu). Metal remobilization due to hydrothermal zone refining (Zn, Sb and Pb) and fluid-seawater...magmatic volatile phase (b 0‰) was added to the hydrothermal system of Skouriotissa. During further fluid...sulfide deposits suggest that the Skouriotissa hydrothermal system has a modern analog. © 2015 Elsevier...last decades numerous hydrothermal vent sites have been discovered along mid-ocean ridges (e.g., Tivey |  | | Journal (article/letter/editorial) | | Hydrothermal exploration of mid-ocean ridges: Where might the largest sulfide deposits...Petersen, Sven, Hannington, Mark D., Hydrothermal exploration of mid-ocean ridges: Where might the largest... ACCEPTED MANUSCRIPT RI PT Hydrothermal exploration of mid-ocean ridges: Where might the largest... MA 02543, USA 2 GEOMAR Helmholtz Centre for Ocean Research, 24148 Kiel, Germany 3 AC CE P TE D...modern-day seafloor PT hydrothermal activity along the global mid-ocean ridge crest and the nature of |
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