 | | 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 ...spreading ridge. Our approach involved two 33 research cruises in the summer of 2016 to the TAG hydrothermal |  | Teagle, Damon A.H, Alt, Jeffrey C, Chiba, Hitoshi, Humphris, Susan E, Halliday, Alex N (1998) Strontium and oxygen isotopic constraints on fluid mixing, alteration and mineralization in the TAG hydrothermal deposit. Chemical Geology, 149 (1) 1-24 doi:10.1016/s0009-2541(98)00030-8 | Journal (article/letter/editorial) | | mixing, alteration and mineralization in the TAG hydrothermal deposit Damon A.H. Teagle a a,) , Jeffrey...recovered from the Trans-Atlantic Geotraverse ŽTAG. hydrothermal mound during Leg 158 of the Ocean Drilling Program...mineralization within an active hydrothermal deposit. Fresh Mid-Ocean Ridge Basalt ŽMORB., with a 87Srr86...87Srr86 Sr of 0.7026, from the basement beneath the TAG mound was altered at both low and high temperatures...Pillow breccias occurring beneath the margins of the mound are locally recrystallized to chlorite by interaction |  | Milinovic, Jelena, Dias, Ágata Alveirinho, Janeiro, Ana I., Pereira, Manuel F. C., Martins, Sofia, Petersen, Sven, Barriga, Fernando J. A. S. (2020) XRD Identification of Ore Minerals during Cruises: Refinement of Extraction Procedure with Sodium Acetate Buffer. Minerals, 10 (2) 160 doi:10.3390/min10020160 | Journal (article/letter/editorial) | | Portugal; mfcp@ist.utl.pt GEOMAR-Helmholtz Centre for Ocean Research Kiel, Wischhofstraße 1-3, 24148 Kiel, Germany;...recovered in the Trans-Atlantic Geotraverse (TAG) field along the Mid Atlantic Ridge (MAR). Sediments...correlation with calcite XRD reflection in selected TAG samples, and this could be applied to the preliminary...abundant minerals detected in carbonated samples were quartz and Al- and Fe-rich clays. Other silicates were...the dominant hydrothermal mineral and Cu sulfides (chalcopyrite, covellite) and hydrothermal Mn oxides (birnessite |  | | 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 |  | 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) | | crystalline silica from the TAG submarine hydrothermal mound, 26°N Mid Atlantic Ridge Received: 10 September...variety of hydrothermal samples from the Trans-Atlantic Geotraverse (TAG) hydrothermal mound, 26°N Mid-Atlantic...Mid-Atlantic Ridge. The water content, trace element chemistry, and mineralogy of crystalline silica from 15...white smoker chimney (n 1), anhydrite bearing hydrothermal breccias (n 2), pyrite silica breccias (n...of ferric iron oxyhydroxides in hydrothermal breccias from the mound ¯anks, within shallower subsurface |  | | 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) | | REE compositions of anhydrites from the TAG seafloor hydrothermal system SUSAN E. HUMPHRIS1,* and WOLFGANG...from the TAG (Trans-Atlantic Geotraverse) active hydrothermal mound (26°08=N, Mid-Atlantic Ridge) that have...patterns of REE behavior when normalized to TAG end-member hydrothermal fluid. Despite differences in REE patterns...precipitated from fluids with a similar range of hydrothermal fluid and seawater components, and all but one...indicates normalization to end-member black smoker hydrothermal fluid) and a small or no Eu anomaly (EuBS/Eu*BS |  | | 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...fluid coexisting with K-feldspar, muscovite and quartz. Results indicate a strong inverse correlation...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 |  | | 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 |  | | 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 |  | 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] |  | | 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...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...sea-floor. It was documented that the 350 ◦ C hydrothermal fluids discharging from the black smoker chimneys |  | | 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...Keywords: Seafloor sulphides; Norway; Arctic Mid Ocean Ridge; copper; zinc; mineralogy; ICP-ES/ MS; XRD;...present on the seafloor as active or inactive hydrothermal vent systems, and they may represent contemporary |  | Li, Bing, Shi, Xuefa, Li, Chuanshun, Wang, Jixin, Pei, Yanliang, Ye, Jun (2016) Lead, Sulfur, and Oxygen Isotope Systematics in Hydrothermal Precipitates from the 14°S Hydrothermal Field, South Mid-Atlantic Ridge. Resource Geology, 66 (3) 274-285 doi:10.1111/rge.12101 | Journal (article/letter/editorial) | | Systematics in Hydrothermal Precipitates from the 14°S Hydrothermal Field, South Mid-Atlantic Ridge Bing LI...between the South Mid-Atlantic Ridge (SMAR) and the Cardno fracture zone, the 14°S hydrothermal field, with its...corner-related hydrothermal mineralization. S, Pb, and O isotopes were measured in hydrothermal sulfide samples...oxygen isotope equilibration temperatures from quartz and seawater are between 94 and 144°C for the top...between downward-penetrating seawater and upward hydrothermal end-member fluids and determine the various mineralization |  | | Journal (article/letter/editorial) | | Planetary Science Letters 145 (1996) 49-64 Mid-ocean ridge sulfide deposits: Evidence for heat extraction...observations show that the sizes of high-temperature hydrothermal sulfide edifices vary dramatically with spreading...result of a profound difference in the nature of hydrothermal heat extraction between fast-spreading ridges...primary source of increased permeability near the ridge axis. Over a time scale of the order of a decade...convection. In the waning stages of magmatism, hydrothermal circulation driven by a dcwnward-migrating cracking |  | | Journal (article/letter/editorial) | | Smoker Smoke at the TAG and Broken Spur Hydrothermal Fields, Mid-Atlantic Ridge V. Yu. Rusakov Vernadsky...presents newly obtained data on the fluxes of hydrothermal–sedimentary material collected with sedimentation...the bottoms of black smokers at the TAG and Broken Spur hydrothermal fields and reports the results of...“mature” (having an age of 40–50 ka) hydrothermal spring at the TAG field contains 40% Fe hydroxides, in contrast...to the material of a spring at the Broken Spur field (age <1000 yr) whose material is dominated by sulfides |  | 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...precipitation temperatures (b400 °C). Similar δ18O quartz-fluid equilibration temperatures (~400 °C) in the...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 |  | 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 |  | Petersen, S., Kuhn, K., Kuhn, T., Augustin, N., Hékinian, R., Franz, L., Borowski, C. (2009) The geological setting of the ultramafic-hosted Logatchev hydrothermal field (14°45′N, Mid-Atlantic Ridge) and its influence on massive sulfide formation. Lithos, 112 (1) 40-56 doi:10.1016/j.lithos.2009.02.008 | Journal (article/letter/editorial) | | ultramafic-hosted Logatchev hydrothermal field (14°45′N, Mid-Atlantic Ridge) and its influence on massive...2009 Keywords: Ultramafic-hosted Hydrothermal system Mid-Atlantic Ridge Massive sulfides Petrology a b...The Logatchev hydrothermal field (14°45′N on the MAR) is one of a few submarine hydrothermal systems associated...previously been linked to detachment faulting and core complex formation. Geological mapping during various ROV...shallow drilling reveal a structural control of hydrothermal activity as well as its location in a debris |  | | 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 |  | | Journal (article/letter/editorial) | | comrlocaterchemgeo Analysis of fluid inclusions in seafloor hydrothermal precipitates: testing and application of an...technique for analysis of trapped fluids in seafloor hydrothermal precipitates and to compare the results with...anhydrite from hydrothermal chimneys from four seafloor sites, Axial Seamount ŽJuan de Fuca Ridge., the Vai...vent field ŽLau Basin., the TAG hydrothermal field ŽMid-Atlantic Ridge., and the 218N vent field ŽEast..., as well as of pyritermarcasite and quartz from the TAG mound, were analyzed. A new type of blank for |  | Gamo, Toshitaka, Chiba, Hitoshi, Yamanaka, Toshiro, Okudaira, Takamoto, Hashimoto, Jun, Tsuchida, Shinji, Ishibashi, Jun-ichiro, Kataoka, Satoshi, Tsunogai, Urumu, Okamura, Kei, Sano, Yuji, Shinjo, Ryuichi (2001) Chemical characteristics of newly discovered black smoker fluids and associated hydrothermal plumes at the Rodriguez Triple Junction, Central Indian Ridge. Earth and Planetary Science Letters, 193 (3) 371-379 doi:10.1016/s0012-821x(01)00511-8 | Journal (article/letter/editorial) | | and associated hydrothermal plumes at the Rodriguez Triple Junction, Central Indian Ridge Toshitaka Gamo...of hydrothermal fluids in the Indian Ocean have been revealed for the first time. A hydrothermal field...field (called the Kairei field), including active black smoker chimneys, was discovered by ROV Kaiko dives...Junction, Central Indian Ridge, after detailed tow-yo surveys of the hydrothermal plume distribution. The...composition similar to the hydrothermal fluids sampled from sediment-starved mid-ocean ridges in the Pacific |  | | Journal (article/letter/editorial) | | elsevier.com/locate/gca Insights to magmatic–hydrothermal processes in the Manus back-arc basin as recorded...sub-seafloor processes governing the formation of hydrothermal fluids in the convergent margin Manus Basin,...and Fenway) and SuSu Knolls (North Su) active hydrothermal fields. Chondrite-normalized REE patterns in...uniform REEN patterns measured in anhydrite from mid-ocean ridge deposits. The REEN patterns in anhydrite are...correlated with REE distributions measured in hydrothermal fluids venting at the seafloor at these vent fields |
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