 | | Journal (article/letter/editorial) | | Mineralised Material from the Loki’s Castle Hydrothermal Vent on the Mohn’s Ridge Ben Snook 1, *, Kristian...2 * Department of Geoscience and Petroleum, Norwegian University of Science and Technology, 7491 Trondheim... Abstract: Loki’s Castle on the Arctic Mid-Ocean Ridge (AMOR) is an area of possible...massive sulphide (SMS)-style mineralisation under Norwegian jurisdiction, which, due to mounting social pressure...sulphide phases, identifiable by microscopy, are pyrite and marcasite with minor pyrrhotite and galena |  | Baumberger, Tamara, Früh-Green, Gretchen L., Thorseth, Ingunn H., Lilley, Marvin D., Hamelin, Cédric, Bernasconi, Stefano M., Okland, Ingeborg E., Pedersen, Rolf B. (2016) Fluid composition of the sediment-influenced Loki’s Castle vent field at the ultra-slow spreading Arctic Mid-Ocean Ridge. Geochimica et Cosmochimica Acta, 187. 156-178 doi:10.1016/j.gca.2016.05.017 | Journal (article/letter/editorial) | | sediment-influenced Loki’s Castle vent field at the ultra-slow spreading Arctic Mid-Ocean Ridge Tamara Baumberger...field Loki’s Castle is located in the Mohns-Knipovich bend (73°N) of the ultraslow spreading Arctic Mid-Ocean...Mid-Ocean Ridge (AMOR) close to the Bear Island sediment fan. The hydrothermal field is venting up to 320°...axial volcanic ridge. Even though the active chimneys have grown on a basaltic ridge, geochemical fluid...influence into the hydrothermal circulation at Loki’s Castle. Compelling evidence for a sediment input is |  | Eickmann, Benjamin, Baumberger, Tamara, Thorseth, Ingunn H., Strauss, Harald, Früh-Green, Gretchen L., Pedersen, Rolf B., Jaeschke, Andrea (2020) Sub-seafloor sulfur cycling in a low-temperature barite field: A multi-proxy study from the Arctic Loki’s Castle vent field. Chemical Geology, 539. 119495 doi:10.1016/j.chemgeo.2020.119495 | Journal (article/letter/editorial) | | barite field: A multi-proxy study from the Arctic Loki’s Castle vent field T ⁎ Benjamin Eickmanna, , Tamara...Porcelli The Loki's Castle vent field at the ultraslow-spreading Arctic Mid-Ocean Ridge (AMOR) hosts a low-temperature...Loki's Castle barite field is largely driven by microbial processes. Keywords: Loki's Castle vent field...sulfur cycling Arctic Mid-Ocean Ridge 1. Introduction Hydrothermal activity in deep-sea hydrothermal systems...the heating of seawater percolating through the ocean crust by a magmatic heat source and results in the |  | Kowalczuk, Przemyslaw, Manaig, Dan, Drivenes, Kristian, Snook, Ben, Aasly, Kurt, Kleiv, Rolf (2018) Galvanic Leaching of Seafloor Massive Sulphides Using MnO2 in H2SO4-NaCl Media. Minerals, 8 (6) 235 doi:10.3390/min8060235 | Journal (article/letter/editorial) | | 2 * Department of Geoscience and Petroleum, Norwegian University of Science and Technology, Sem Sælands...massive sulphides (SMS) from the Loki’s Castle area at the Arctic Mid-Ocean Ridge in sulphuric acid with manganese...silver; manganese dioxide; marine minerals; deep-sea mining 1. Introduction The major copper-bearing...massive sulphides (SMS) from the Loki’s Castle area at the Arctic Mid-Ocean Ridge is isocubanite (CuFe2 S3 )...deposits of such ores are found in the Pacific Ocean between Hawaii, California, and around Polynesia |  | | Journal (article/letter/editorial) | | Ellefmo Department of Geoscience and Petroleum, Norwegian University of Science and Technology, Sem Sælands...illustrated on a site of interest located on the Arctic Mid-Ocean Ridge. Random sampling based on literature datasets...1. Introduction Since the 1960s, mining of deep-sea minerals has remained questionable [1]. A major part...enable deep-sea mining to become a reality are now required. The economic viability of deep-sea minerals...water depth [3]. SMS are also present on the Norwegian Continental Shelf (NCS) [4], and the present paper |  | | Journal (article/letter/editorial) | | Department of Geoscience and Petroleum, NTNU Norwegian University of Science and Technology, S. P. Andersens...massive sulfides (SMS) from Loki’s Castle on the Arctic Mid-Ocean Ridge (AMOR) and polymetallic nodules...Clarion Clipperton Zone (CCZ) of the Central Pacific Ocean was studied. Leaching tests were conducted using...massive sulfides; leaching; copper; manganese; deep-sea mining 1. Introduction Polymetallic nodules (PN)...such as chalcopyrite [9,10], sphalerite [11], and pyrite [12] in acid media has been investigated. In our |  | A. Marques, Ana Filipa, Roerdink, Desiree L., Baumberger, Tamara, de Ronde, Cornel E. J., Ditchburn, Robert G., Denny, Alden, Thorseth, Ingunn H., Okland, Ingeborg, Lilley, Marvin D., Whitehouse, Martin J., Pedersen, Rolf B. (2020) The Seven Sisters Hydrothermal System: First Record of Shallow Hybrid Mineralization Hosted in Mafic Volcaniclasts on the Arctic Mid-Ocean Ridge. Minerals, 10 (5) 439 doi:10.3390/min10050439 | Journal (article/letter/editorial) | | Mineralization Hosted in Mafic Volcaniclasts on the Arctic Mid-Ocean Ridge Ana Filipa A. Marques 1,2, *, Desiree L...Pedersen 1 1 2 3 4 5 6 * K.G. Jebsen Centre for Deep Sea Research, University of Bergen, 5007 Bergen, Norway;...mid-ocean ridge setting. The vent field is located at the southern part of the Arctic mid-ocean ridge...is ubiquitous, and is sequentially replaced by pyrite, which is the first sulfide to form, followed by...well as δ34 S and 87 Sr/86 Sr values in barite and pyrite indicate that mineralization at Seven Sisters is |  | | Journal (article/letter/editorial) | | Poland Department of Geoscience and Petroleum, Norwegian University of Science and Technology, S. P. Andersens...Citation: Ochromowicz, K.; Aasly, Keywords: deep-sea mining; marine minerals; seafloor massive sulfides;...doi.org/10.3390/min11121437 The discovery of deep-sea concretions, later known as polymetallic nodules...scientists has been to develop a technology for deep sea-floor exploration and extraction, enabling the collection...problems, probably caused by the great diversity of the sea-bed materials, or difficulties with the beneficiation |  | | Journal (article/letter/editorial) | | Seafloor Massive Sulfide Deposits on an Arctic Mid-Ocean Ridge: Application of grade and tonnage models...Seafloor Massive Sulfide Deposits on an Arctic Mid-Ocean Ridge: Application of grade and tonnage models...Seafloor Massive Sulfide Deposits on an Arctic Mid-Ocean Ridge: Application of grade and tonnage models...models Cyril Juliani, Steinar Løve Ellefmo Norwegian University of Science and Technology (NTNU), Department...48 56 Keywords seafloor massive sulfide, mid-ocean ridge, resource assessment, grade, tonnage Abstract |  | Liao, Shili, Tao, Chunhui, Li, Huaiming, Barriga, Fernando J.A.S., Liang, Jin, Yang, Weifang, Yu, Junyu, Zhu, Chuanwei (2018) Bulk geochemistry, sulfur isotope characteristics of the Yuhuang-1 hydrothermal field on the ultraslow-spreading Southwest Indian Ridge. Ore Geology Reviews, 96. 13-27 doi:10.1016/j.oregeorev.2018.04.007 | Journal (article/letter/editorial) | | field on the ultraslow-spreading Southwest Indian Ridge Shili Liao, Chunhui Tao, Huaiming Li, F.J.A.S. Barriga...field on the ultraslow-spreading Southwest Indian Ridge, Ore Geology Reviews (2018), doi: https://doi.org/10...field on the ultraslow-spreading Southwest Indian Ridge Shili Liaoa, b, Chunhui Taoa, b, Huaiming Lia...Ciências, Universidade de Lisboa, Lisboa, Portugal d Ocean college, Zhejiang University, Zhoushan 316021, Zhejiang...recently on the ultraslow-spreading Southwest Indian Ridge (segment 29). This field comprises two main sulfide |  | | Journal (article/letter/editorial) | | of Marine Technology, Faculty of Engineering, Norwegian University of Science and Technology (NTNU), Otto...Geoscience and Petroleum, Faculty of Engineering, Norwegian University of Science and Technology (NTNU), Sem...and Systems, Department of Marine Technology, Norwegian University of Science and Technology (NTNU), Otto...Otto Nielsens Vei 10, NO-7491 Trondheim, Norway Arctic Technology Department, University Centre in Svalbard...base metal deposits are important for future deep sea mining endeavours. Underwater hyperspectral imaging |  | | 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...Robert L. Wesson, and Göran Ekström (Eds.) 180 Arctic Sea Ice Decline: Observations, Projections, Mechanisms... 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) | | Fluids in Deep-Sea Hydrothermal Systems Shamik Dasgupta , Xiaotong Peng * and Kaiwen Ta Deep Sea Science Division...Division, Institute of Deep-Sea Science and Engineering, Chinese Academy of Sciences, Sanya 572000, China;... Abstract: The discovery of deep-sea hydrothermal vents in the late 1970s widened the...geochemistry. Endolithic microbial communities at the ocean floor catalyze a number of redox reactions through...reactions. Here, we briefly review the global deep-sea hydrothermal systems, microbial diversity, and microbe–mineral |  | Liao, Shili, Tao, Chunhui, Zhu, Chuanwei, Li, Huaiming, Li, Xiaohu, Liang, Jin, Yang, Weifang, Wang, Yejian (2019) Two episodes of sulfide mineralization at the Yuhuang-1 hydrothermal field on the Southwest Indian Ridge: Insight from Zn isotopes. Chemical Geology, 507. 54-63 doi:10.1016/j.chemgeo.2018.12.037 | Journal (article/letter/editorial) | | Yuhuang-1 hydrothermal field on the Southwest Indian Ridge: Insight from Zn isotopes Shili Liao, Chunhui Tao...Yuhuang-1 hydrothermal field on the Southwest Indian Ridge: Insight from Zn isotopes. Chemge (2018), https://doi...Yuhuang-1 hydrothermal field on the Southwest Indian Ridge: insight from Zn isotopes Shili Liaoa,b, Chunhui...hydrothermal field (YHF) on the Southwest Indian Ridge primarily contains two different sulfide distribution...YHF PT E were controlled by the sphalerite and pyrite content; the study also revealed that early minerals |  | | Book | | the Deep A Photographic Atlas of the Seafloor and Ocean Crust The deep oceans and global seafloor are truly...and fault zones in mountains a mile beneath the ocean surface, where bizarre landscapes host exotic life...components of the Earth’s ocean floor and the myriad environments found along mid-ocean ridges where new crust...seafloor geology and biology using the latest deep-sea imaging and geological concepts. Jeffrey A. Karson...robotic vehicles, and has been on over 50 Alvin deep-sea submersible dives, to depths as great as 4000 meters |  | | Journal (article/letter/editorial) | | exploitable reservoirs of hydrogen such as deep-sea hydrothermal vents, serpentinized ultra- gas here...the Rainbow Hydrothermal Vent Field (Mid-Atlantic Ridge) and in ophiolites on the continents the past. Furthermore...SG3 super deep borehole Lovozero, Khibiny Loki’s Castle Yellowknife Cigar Lake Endeavor Ilimaussac...smoker) at the Rainbow system on the Mid-Atlantic Ridge. Image credit: Woods Hole Oceanographic Institution...redox-sensitive metals. Mineral assemblages such as pyrite– pyrrhotite–magnetite or quartz–fayalite–magnetite |  | | Journal (article/letter/editorial) | | Institution of Washington, Washington DC 20015 1 Ocean island basalt (OIB) lavas from Mangaia, Cook Islands...olivine-hosted sulfides from 20-million-year-old ocean island basalts from Mangaia (most extreme "33S measurement...cn), (mdai@xmu.edu.cn) 2 Department of Earth and Ocean Sciences, University of South Carolina, Columbia...Terrane following the closure of the Intra-Pontide Ocean during the Late Cretaceous – Late Paleocene. The...relationship derived for inorganic calcite (e.g., deep sea corals) [2], whereas others appear to be offset to |  | Zheng, Mengtian, Wang, Changle, Zhang, Lianchang, Shi, Zongbo, Zhu, Mingtian, Li, Zhiquan, He, Lidong (2018) Geological and geochemical constraints on the origin of the Early Cambrian Kalaizi Fe–Ba deposit in Western Kunlun, NW China. Ore Geology Reviews, 100. 347-359 doi:10.1016/j.oregeorev.2017.09.025 | Journal (article/letter/editorial) | | than those of penecontemporaneous seawater, (ii) pyrite and galena minerals owned δ34S values (16.3–23...composed dominantly of barite and magnetite with minor pyrite, sphalerite, and galena, while gangue minerals...and 15–35% magnetite (Fig. 5 g). (4) Anhydrite–pyrite and anhydrite–galena–sphalerite ores (No. IIS2...relevant genesis (see below). Anhydrite–pyrite ore consists of pyrite, anhydrite, quartz, and mica with disseminated...minerals are reported relative to the standard mean ocean water (VSMOW). The precision of analyses from MAT–262 |  | | Journal (article/letter/editorial) | | oyhxli@csu.edu.cn (M.L.) National Key Laboratory of Deep-Sea Mineral Researches Development and Utilization Technology...the international metal market [1,2]. These deep-sea mineral commodities are formed by very different...deep-of deep-sea mining systems. The results also provide new information on key mechanical sea mining systems...southwest Indian Ocean ridge area with a grab sampler and the segments are, respectively, China Ocean Sample Repository...samples were collected from the southwest Indian Ocean ridgeAsarea withinaFigure grab sampler the included |  | Griffith, Elizabeth M., Paytan, Adina, Wortmann, Ulrich G., Eisenhauer, Anton, Scher, Howie D. (2018) Combining metal and nonmetal isotopic measurements in barite to identify mode of formation. Chemical Geology, 500. 148-158 doi:10.1016/j.chemgeo.2018.09.031 | Journal (article/letter/editorial) | | wortmann@utoronto.ca d IFM-GEOMAR, Helmholtz Centre for Ocean Research Kiel, Wischhofstrasse 1-3, D24148 Kiel...University of South Carolina, School of Earth, Ocean and Environment, Columbia, South Carolina, 29208...notation relative to VSMOW (Vienna Standard Mean Ocean Water). AC CE PT We calibrate our measurements...modified when they move through the sediment-covered ridge system where microbial sulfate reduction removes...values [Seal et al., 2000]. Diagenetic barite from Ocean Drilling Program Site 765 has the lowest 18O value |  | | Journal (article/letter/editorial) | | This might be due to the subduction of an aseismic ridge that changed the geometry of melting sites in the...Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge TN 37831 We compared the laboratory-determined...diversity and distribution in methane seep of Yung-An Ridge, SW Taiwan A. LADENBERGER1*, D.G. GEE1, S. CLAESSON2...Grenvillian-Sveconorwegian terranes and that the Iapetus Ocean may well have opened along the axis of this older...identifed in the Yung-An Ridge located in the Northeastern South China Sea continental margin off southwestern |  | | Journal (article/letter/editorial) | | is located at the central part of the Monostoy ridge west of the Arsentyevka village. The massif outcrops...primary depositional setting in order to evaluate ocean basin conditions during this important interval...Positive Eu anomalies may reflect either the Archaean ocean signature or the influx of hot S-rich fluids or...wadis are important sources of water to the Red Sea coastal plain. Copper, zinc and other base-metals...Atmospheric inputs of iron and nitrogen to the Atlantic Ocean derived from large-scale field sampling ALEX BAKER* |  | Wilckens, Frederike K., Reeves, Eoghan P., Bach, Wolfgang, Meixner, Anette, Seewald, Jeffrey S., Koschinsky, Andrea, Kasemann, Simone A. (2018) The influence of magmatic fluids and phase separation on B systematics in submarine hydrothermal vent fluids from back-arc basins. Geochimica et Cosmochimica Acta, 232. 140-162 doi:10.1016/j.gca.2018.04.023 | Journal (article/letter/editorial) | | circulation is crucial to assess chemical fluxes in the ocean (Edmond et al., 1979, 1982; Von Damm et al., 1985...000-km long mid-ocean ridge system has long been recognized as a key player in regulating ocean chemistry....back-arc settings differs from those at mid-ocean ridge sites, indicating variations in physical and...2011, Seewald et al., 2015). In contrast to mid-ocean ridge vent systems, where the magmatic influx is...2010; Yamaoka et al., 2015). Furthermore, Mid-Ocean-Ridge Basalts (MORB) have B concentrations of ~1 mg/kg |  | | Journal (article/letter/editorial) | | information about the activity of methanotrophs in the ocean. Our rate measurements compared to 3H-CH4 rate measurements...during seawater-alteration at slow-spreading mid-ocean ridges. Talcschist and talc-bearing serpentinite...also it is associated with Sulphides, especially Pyrite and chalcopyrite. Four types of fluid inclusion...gold ores where gold is locked in arsenopyrite and pyrite. Natural analogs in this system include hydrated...selenium-bearing minerals distribute in the edge or cranny of pyrite, quartz and feldspar. The selenium-bearing minerals |  | | Journal (issue) | | extensional and shear parallel quartz-tourmaline-pyrite (QTP) veining. The VGP has undergone multiple complex...across the target area and supported by Au-AgTe pyrite inclusions found in least altered quartz veins...SALINITY CONTROLS ON SEDIMENTATION IN THE CHAMPLAIN SEA BASIN, OTTAWA, CANADA Omar Al-Mufti1, William Arnott1...unravel the depositional history of the Champlain Sea basin in Ottawa, Canada. CT-scan images and Hounsfield...temporal evolution of sedimentation in the Champlain Sea basin. ANALOGUE MODELS OF SYMPTOMATIC VERSUS ASYMPTOMATIC |
|
