 | | Report (chapter) | | Detailed geological studies of hydrothermal fields in the North Atlantic S. G. Krasnov, G. A. Cherkashev...Detailed geological studies of hydrothermal fields in the North Atlantic S. G . K R A S N O V 1, G. A....Institute of Geology and Mineral Resources of the Ocean, 1 A ngliysky A venue, 190121 St Petersburg, Russia...been carried out at the TAG and MARK hydrothermal fields of the Mid-Atlantic Ridge during research cruises...Association, St Petersburg. Detailed mapping of the MARK field (23~ allowed contouring of the massive sulphide |  | | 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 |  | | Journal (article/letter/editorial) | | in seafloor hydrothermal systems: examples from mafic- and ultramafic-hosted hydrothermal fields at the...the slow-spreading Mid-Atlantic Ridge Jan Pašava & Anna Vymazalová & Sven Petersen Received: 16 October...Pits hydrothermal field and in massive sulfides from the ultramafic-hosted Logatchev vent field both...both on the MidAtlantic Ridge was studied and compared to that from selected ancient volcanic-hosted massive...source rock and seawater involvement in the hydrothermal system at Turtle Pits. Similarly shaped PGE |  | | Report (volume) | | Hydrothermal Vents and Processes Geological Society Special Publications Series Editor A.J. FLEET... GEOLOGICAL SOCIETY SPECIAL PUBLICATION NO. 87 Hydrothermal Vents and Processes EDITED BY L. M. P A R...BAKER,E. T. & KLINKHAMMER,G. Regional setting of hydrothermal activity 3 KRASNOV,S. G., POROSHINA,I. M....G. A. Geological setting of high-temperature hydrothermal activity and massive sulphide formation on fast-...ecology of the Broken Spur hydrothermal vent field: 29~ on the Mid-Atlantic Ridge 33 KRASNOV, S. G., CHERKASHEV |  | | 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 |  | | Journal (article/letter/editorial) | | morphology on the formation of gold-rich SMS deposits at slow and ultraslow mid-ocean ridges Robert D. Knight...are variably enriched in precious metals including gold. However, the processes invoked to explain the formation...auriferous deposits do not typically apply to mid-ocean ridge settings. Here, we show a statistically significant...average gold concentration of SMS deposits with spreading rate, at non-sedimented mid-ocean ridges. Deposits...slow spreading ridges (20–40 mm/a) have average gold concentrations of between 850 and 1600 ppb; however |  | Mozgova, N. N., Trubkin, N. V., Borodaev, Y. S., Cherkashev, G. A., Stepanova, T. V., Semkova, T. A., Uspenskaya, T. Yu. (2008) MINERALOGY OF MASSIVE SULFIDES FROM THE ASHADZE HYDROTHERMAL FIELD, 13 N, MID-ATLANTIC RIDGE. The Canadian Mineralogist, 46 (3) 545-567 doi:10.3749/canmin.46.3.545 | Journal (article/letter/editorial) | | MASSIVE SULFIDES FROM THE ASHADZE HYDROTHERMAL FIELD, 13°N, MID-ATLANTIC RIDGE Nadezhda N. MOZGOVA§ and Nikolay...Institute for Geology and Mineral Resources of the Ocean, St. Petersburg, 190121, Russia Tatiana Yu. USPENSKAYA...submarine hydrothermal field, located at a depth of 4100–4200 m at 13°N along the Mid-Atlantic Ridge, was...mineralized peridotite. Preliminary investigations of the field suggested a zonal structure, which was confirmed...characteristics of the massive sulfides in the Ashadze field were established: 1) varied morphologies of the |  | | Journal (article/letter/editorial) | | 1007/s00126-019-00895-3 INVITED PAPER Divining gold in seafloor polymetallic massive sulfide systems...Accepted: 6 May 2019 # The Author(s) 2019 Abstract Hydrothermal fluids on the modern seafloor are important...The concentrations and distribution, especially of gold and silver, in associated seafloor massive sulfide...large range of gold and silver grades, in part reflecting strong buffering of the hydrothermal fluids by their...most cases the investigated hydrothermal fluids are undersaturated with gold and silver, and solubilities |  | | Journal (article/letter/editorial) | | elements and gold in the Platreef at Zwartfontein, Akanani Project, Northern Bushveld Complex, South Africa...45:147–159. Fe-rich cap lithologies in the TAG hydrothermal field: implications for the preservation of extinct...340 high temperature hydrothermal sites have been identified at a range of ocean spreading centres (Petersen...stobbs@noc.soton.ac.uk the TAG hydrothermal field (26° North, mid-Atlantic ridge) and identify subsurface...studied: Southern Mound, MIR Mound, and a newly discovered mound named ‘Rona Mound’. All three sites |  | Zeng, Zhigang, Ma, Yao, Chen, Shuai, Selby, David, Wang, Xiaoyuan, Yin, Xuebo (2017) Sulfur and lead isotopic compositions of massive sulfides from deep-sea hydrothermal systems: Implications for ore genesis and fluid circulation. Ore Geology Reviews, 87. 155-171 doi:10.1016/j.oregeorev.2016.10.014 | Journal (article/letter/editorial) | | compositions of massive sulfides from deep-sea hydrothermal systems: Implications for ore genesis and fluid...compositions of massive sulfides from deep-sea hydrothermal systems: Implications for ore genesis and fluid...massive sulfides from deep-sea SC R IP T hydrothermal systems: Implications for ore genesis and fluid...Selbye, Xiaoyuan Wanga, b, Xuebo Yina Seafloor Hydrothermal Activity Laboratory of the Key Laboratory of...ac.cn (Z.-G. Zeng). Postal address: Seafloor Hydrothermal Activity Laboratory of the Key Laboratory of |  | Melekestseva, Irina Yu., Maslennikov, Valery V., Tret’yakov, Gennady A., Nimis, Paolo, Beltenev, Victor E., Rozhdestvenskaya, Irina I., Maslennikova, Svetlana P., Belogub, Elena V., Danyushevsky, Leonid, Large, Ross, Yuminov, Anatoly M., Sadykov, Sergey A. (2017) Gold- and Silver-Rich Massive Sulfides from the Semenov-2 Hydrothermal Field, 13°31.13′N, Mid-Atlantic Ridge: A Case of Magmatic Contribution?. Economic Geology, 112 (4) 741-773 doi:10.2113/econgeo.112.4.741 | Journal (article/letter/editorial) | | 741–773 Gold- and Silver-Rich Massive Sulfides from the Semenov-2 Hydrothermal Field, 13°31.13'N, Mid-Atlantic...Mid-Atlantic Ridge: A Case of Magmatic Contribution?* Irina Yu. Melekestseva,1,† Valery V. Maslennikov,1,2 Gennady...The basalt-hosted Semenov-2 hydrothermal field on the Mid-Atlantic Ridge is host to a rather unique Cu-Zn–...ppm) contents. The largest proportion of visible gold is associated with abundant opal-A, which precipitated...generation of Fe and Cu sulfides. Only rare native gold grains were found in earlier sulfides. Fluid inclusions |  | | Book | | 2. Oceanography I. Title 553.09162 - dc. 21 3. Ocean bottom ISA/04/01 All rights reserved. No part...World’s Ocean 162 V. M. Yubko Chapter 4 Hydrothermal Sulphide Mineralisation of the Atlantic – Results...Development of Seafloor Massive Sulphides on deep-sea hydrothermal Vent Ecosystems 273 S. Kim Juniper Chapter...Development of an Environmental Baseline in Large Open-Ocean Systems off Southern Namibia by De Beers Marine...the seafloor in the abyssal plains of the world’s ocean, this requirement has worked and seven entities |  | | Book | | 01636083 0 geny G. Gurvich Sediments of the World Ocean Fundamental Theory of Deep-Sea Sedimentation 4V...Metalliferous Sediments of the World Ocean Fundamental Theory of Deep-Sea Hydrothermal Sedimentation Digitized...Metalliferous Sediments of the World Ocean Fundamental Theory of Deep-Sea Hydrothermal Sedimentation With 174 Figures...from the Juan de Fuca Ridge.61 1.4. Metalliferous sediments from the Indian ocean.72 1.5. Sediments in...in the areas of hydrothermal activity in the Southwest Pacific. 81 1.6. Metalliferous sediments in the |  | Petersen, S., Herzig, P. M., Hannington, M. D., Jonasson, I. R., Arribas, A. (2002) Submarine Gold Mineralization Near Lihir Island, New Ireland Fore-Arc, Papua New Guinea. Economic Geology, 97 (8) 1795-1813 doi:10.2113/gsecongeo.97.8.1795 | Journal (article/letter/editorial) | | Geology Vol. 97, 2002, pp. 1795–1813 Submarine Gold Mineralization Near Lihir Island, New Ireland Fore-Arc...S. Rock Blvd. #117, Reno, Nevada 89502 Abstract Gold-rich, siliceous veins with disseminated polymetallic...concentration of gold yet reported from the modern sea floor (max 230 ppm Au; avg 26 ppm, n = 40). The gold occurs...variety of Cu-Pb-As-Sb sulfosalts. The gold occurs as native gold and electrum in the amorphous silica...silica and as inclusions in the sulfides. The highest gold concentrations are associated with high Ag, As, |  | | Book | | markets 333 Chapter 15 Review of the silver and gold markets 338 Mr. Yang Shengxiong, Guangzhou Marine...Mr. Kazuo Okubo, Counsel of Administration, Deep Ocean Resources Development Co. Ltd. 13-15, Nihonbashi-Horidome-Cho...Charlotte Salpin, Associate Ocean Affairs & Law of the Sea Officer, Division for Ocean Affairs and the Law of...interest in polymetallic sulphides deposits (copper, gold, lead, silver and zinc) and in cobalt-rich ferromanganese...closely related to the non-living resources of the ocean floor that could potentially be mined in the future |  | Petersen, S., Monecke, T., Westhues, A., Hannington, M. D., Gemmell, J. B., Sharpe, R., Peters, M., Strauss, H., Lackschewitz, K., Augustin, N., Gibson, H., Kleeberg, R. (2014) Drilling Shallow-Water Massive Sulfides at the Palinuro Volcanic Complex, Aeolian Island Arc, Italy. Economic Geology, 109 (8) 2129-2158 doi:10.2113/econgeo.109.8.2129 | Journal (article/letter/editorial) | | Shallow-Water Massive Sulfides at the Palinuro Volcanic Complex, Aeolian Island Arc, Italy Sven Petersen,1,† Thomas...80401 3 Department 4 CODES, Helmholtz Centre for Ocean Research Kiel, Wischhofstrasse 1-3, 24148 Kiel,...drilled in shallow waters at the Palinuro volcanic complex, the northernmost Aeolian arc volcano in the Tyrrhenian...overprint. Seafloor observations suggest that the hydrothermal system associated with the formation of the...sulfide deposit is related to the evolution of the hydrothermal fluids in space and time. The barite cap and |  | | Journal (article/letter/editorial) | | Tsukuba, Ibaraki, Japan Abstract Three submarine hydrothermal sites (Snail, Y and Pika sites) in the southern...difference between off-axis and on-axis submarine hydrothermal activities and volcanic rocks. The Snail and...sites are located on the axis of the spreading ridge, and the Pika site is located on the offaxis region...region. Low-temperature venting of submarine hydrothermal fluids was observed at the Snail and Y sites...within the range of massive sulfides at the mid-ocean ridge rather than typical arc-type massive sulfides |
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