seafloor massive sulphides mining and processing

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seafloor massive sulphides mining and processing

2020-08-23T07:08:51+00:00
  • Seafloor mining: the DeepGreen method

    The Deepgreen WayWhy Deepsea Mining?Threatened EnvironmentsWhat’s Next?DeepGreen was set up in 2011 by David Heydon with the support of now-CEO Gerard Baron. Both had been involved in Nautilus Minerals, another deepsea mining company which is on track to be the first in the world to start commercial operations off the coast of Papua New Guinea in the next couple of years. But unlike Nautilus, DeepGreen is pursuing a method that would allow essential metals and minerals to be gathered withoSee more on mining-technology
  • Development of seafloor mineral processing for Seafloor ...

    2016-10-08  Abstract: Seafloor Massive Sulfides (SMSs), which are formed from hydrothermal fluids vented from seafloor, have been expected as one of future mineral resources. The authors have proposed the concept of seafloor mineral processing, where valuable minerals contained in SMS ores are separated on seafloor.

  • Experimental leaching of massive sulphide from TAG active ...

    2018-01-01  Seafloor massive sulphide (SMS) ore deposits and their economic worth has been discussed extensively in the literature (German et al., 2016, Hannington and Jamieson, 2011, Hannington et al., 2010, Monecke et al., 2016), with Nautilus Minerals Inc. already in the process of planning mineral extraction in what would be the world's first SMS mine at the Solwara 1 deposit in the Bismarck Sea

  • Cited by: 6
  • MINERALOGICAL CHARACTERIZATION AND METALLURGICAL ...

    Seafloor massive sulfides (SMS) are the third kind of discovered deep-sea minerals besides ferromanganese nodules and cobalt-rich ferromanganese crusts (Sharma, 2017). They occur in water depths around 250–4,000 m (Koschinsky et al., 2018). SMS are characterized by a high base metal and sulfide

  • Mechanical Tests and Numerical Simulations for Mining ...

    Seafloor Massive Sulfides (SMS), formed by the hydrothermal or chemical processes on the seafloor, are rich in precious and base metals such as gold, silver, manganese, iron, cobalt, etc. [1–5]. Currently, SMS deposits are primarily exploited by a spiral drum with cutting picks.

  • Cited by: 2
  • Seafloor Massive Sulphides: Assessment of Sustainable ...

    provides a process model based on the IDEF0 (Integration DEFinition) standard to assess seafloor massive sulphide mining projects from sustainable mining perspectives. This adaptation of IDEF0 provides a clear, visual representation of a hierarchical framework that can be used to identify “go no-go” sustainability criteria to assist decision makers interested in the potential development ...

  • Mining of deep-sea seafloor massive sulfides: A review of ...

    2013-11-01  Seafloor massive sulfide (SMS) deposits form in a suite of hydrothermal settings across a range of depths. Many deposits are of a tonnage and mineral grade comparable to land deposits and are attractive to mining companies. Economically viable deposits can be either active or inactive, with different biological communities present at each.

  • Cited by: 203
  • Mining seafloor massive sulphides and biodiversity: what ...

    IntroductionVent Ecology BasicsNatural Disturbance and ResponseInactive Seafloor Massive SulphidesExpected Impact on Benthic Communities of Single and Cumulative Mining EventsConservation StrategiesAcknowledgements1000 m. The general belief among deep-sea biologists through 2004 was that mining of deep-sea massive sulphides remained many decades into the future, despite the knowledge that the United Nations Convention on the Law of the Sea and the 1994 Agreement on the regime of seafloor mining established the International Sea...">In the 1990s, there was a resurgent interest in extraction of copper, zinc, silver, and gold from seafloor massive sulphide deposits. This resurrection of mineral extraction was at least in part a consequence of the discovery of ore-quality seafloor massive sulphides in back-arc basins in the mid-1980s (Binns and Scott, 1993) and increasing accessibility of deep-sea environments through advanced technologies and assets. In 1997, Papua New Guinea issued exploration licences to Nautilus Minerals, Inc., a Canadian
  • Sea Floor Mining Exploration Technology and Methods

    buried and seafloor massive sulfide deposits and gas hydrate deposits. Positioning of subsea vehicles and installations is not simple, but off the shelf transponder systems are available, and subsea sonar based systems allow multiple assets to be locatnavigation ed within a

  • Nautilus Minerals officially sinks, shares ... - MINING.COM

    2019-11-26  Court papers noted that Nautilus had two distinct business units, one dealing with polymetallic nodules, and one dealing with seafloor massive sulphides, which includes the Solwara 1

  • (PDF) MINERALOGICAL CHARACTERIZATION AND

    2020-06-21  In this study, seafloor massive sulfides from the German license area in the Indian Ocean (Kairei field, Southern Central Indian Ridge) are treated to

  • MINERALOGICAL CHARACTERIZATION AND METALLURGICAL ...

    Seafloor massive sulfides (SMS) are the third kind of discovered deep-sea minerals besides ferromanganese nodules and cobalt-rich ferromanganese crusts (Sharma, 2017). They occur in water depths around 250–4,000 m (Koschinsky et al., 2018). SMS are characterized by a

  • Seafloor massive sulfide deposits - Wikipedia

    Nautilus Minerals Inc. (Nautilus) is engaged in commercially exploring the ocean floor for copper, gold, silver and zinc seafloor massive sulphide (SMS) deposits, and mineral extraction from an SMS system.

  • (PDF) Concept of Seafloor Mineral Processing for ...

    Seafloor Massive Sulfides (SMS), which were formed by deposition of precipitates from hydrothermal fluids vented from seafloor, is one of unconven tional mineral resources beneath deep seafloors in...

  • Development of Elemental Technologies for Seafloor Mineral ...

    Seafloor Massive Sulfides have been expected to be future mineral resources. The grade of valuable metallic elements in ores of Seafloor Massive Sulfides is usually small percentage. If valuable minerals can be extracted from the ores on deep seafloor, the total mining cost can be reduced significantly.

  • (PDF) Study on Seafloor Mineral Processing for Mining of ...

    (PDF) Study on Seafloor Mineral Processing for Mining of Seafloor Massive Sulfides Yasuharu Nakajima - Academia.edu Academia.edu is a platform for academics to share research papers.

  • Mining seafloor massive sulphides and biodiversity: what ...

    Mining of seafloor massive sulphides, where permitted, will be a frontier use of the deep sea, with no precedent for how to monitor, regulate, and minimize habitat loss and degradation or to facilitate mitigation and restoration.

  • Sea Floor Mining Exploration Technology and Methods

    buried and seafloor massive sulfide deposits and gas hydrate deposits. Positioning of subsea vehicles and installations is not simple, but off the shelf transponder systems are available, and subsea sonar based systems allow multiple assets to be locatnavigation ed within a

  • DEEP SEA MINERALS 1A Sea-Floor Massive Sulphides

    Sea-floor massive sulphides (SMS) are deposits of met- al-bearing minerals that form on and below the seabed as a consequence of the interaction of seawater with a heat source (magma) in the sub-sea-floor region (Hannington et al2005).

  • Mining Methods • Environment Guide

    The process that the company is proposing for the mining operation is discussed further in the case study. Seafloor massive sulphides . Seafloor Massive Sulfide deposits form in submarine volcanic regions where sulphur-rich magmatic and hydrothermal fluids precipitate sulphur and metals around hydrothermal vents. The hydrothermal fields ...

  • DEEP SEA MINERALS 1A Sea-Floor Massive Sulphides

    8 SEA-FLOOR MASSIE SULPHIDES The formation and occurrence of sea-floor massive sulphides 1.1 Sea-floor massive sulphides (SMS) are deposits of met-al-bearing minerals that form on and below the seabed as a consequence of the interaction of seawater with a heat source (magma) in the sub-sea-floor region (Hannington et al 2005).

  • Potential Deep-Sea Mining of Seafloor Massive Sulfides: A ...

    Chapter 3: Seafloor Massive Sulfide Mining Technology The fundamental difference between terrestrial and seafloor massive sulfide deposits from an engineering perspective is land-based deposits are covered by overburden, which must be removed before extraction can begin; seafloor massive sulfide deposits are covered by a few kilometers water, which does not need to be removed for extraction ...

  • Development of Elemental Technologies for Seafloor Mineral ...

    Seafloor Massive Sulfides have been expected to be future mineral resources. The grade of valuable metallic elements in ores of Seafloor Massive Sulfides is usually small percentage. If valuable minerals can be extracted from the ores on deep seafloor, the total mining cost can be reduced significantly. The authors proposed Seafloor Mineral Processing, where ores are to be ground into fine ...

  • The Risks of Mining Seafloor Massive Sulfides - AusIMM

    Seafloor massive sulfide deposits contain bonanza grades of gold, silver, copper and zinc metals. The deposits are often found at depths of one kilometre or more. They are characterised by active chimneys or smokers venting fluids at over 300°C, with extremely low pH values. Mining of these deposits presents risks for both industry and governments...

  • Photo feature: the USGS’s ocean mining research

    “The oldest seafloor massive sulphide minerals we know about are only a couple of hundred thousand years old. Ferromanganese crusts and nodules may be tens of millions years old, and can provide a window into ocean history. The oceans and marine sediments are also the source of many of the elements in ferromanganese crusts and manganese nodules, and result in their particular enrichment ...

  • Polymetallic Massive Sulphides and

    PM Herzig; S Petersen, Frieberg University of Mining and Technology, Germany MD Hannington, Geological Survey of Canada . 8 International Seabed Authority Polymetallic Massive Sulphide Deposits at the modern Seafloor and their Resource Potential Since 1979, polymetallic massive sulphide deposits have been found at water depths up to 3,700 m in a variety of tectonic settings at the modern ...

  • Seafloor massive sulphide exploration using deep-towed ...

    The TAG area is affected by long-term hydrothermal venting leading to alteration of oceanic crust and creation of seafloor massive sulphide (SMS) deposits (Humphris et al. 2015 ). The electrical properties differ greatly between gabbros, basalt, altered basalt and SMS, and the electrical conductivity is several orders of magnitude larger for SMS than for basalt (Spagnoli et al .

  • The Environmental Impact Assessment for Mining Seafloor ...

    Japan Oil, Gas and Metals National Corporation (JOGMEC) conducted the Environmental Impact Study research from 2008 fiscal year under contract to the Ministry of Economy, Trade and Industry (METI) for the commercialization of Seafloor Massive Sulphide (SMS). It is necessary to consider the potential impacts of mining on the surrounding environment and to promote the project for long-term ...

  • Sulphides - International Seabed Authority

    Seafloor massive sulphide mining will likely focus on relatively small areas of the seafloor and largely be restricted to the surface (strip mining) and shallow subsurface (open cast mining) to recover sulphide mounds and chimney fields at the seafloor and replacement ore bodies in the stockwork zone just below it. Massive sulphide ore (Peter Herzig) Cross-section of a sulphide chimney (Peter ...

  • Study to investigate state of knowledge of deep sea mining

    2014-10-15  Study to investigate state of knowledge of deep sea mining 2 Seafloor Massive Sulphides 2.1 The formation and occurrence of seafloor massive sulphides Sea-floor massive sulphides are occurrences of metal-bearing minerals that form on and below the seabed as a consequence of the interaction of seawater with a heat source (magma) in the sub-

  • Mining Methods • Environment Guide

    Techniques for mining minerals in the marine environment may involve seafloor suction dredging, seafloor slurry pipes, use of tracked vessels on the seafloor and seafloor cutting/fragmentation. Following extraction and processing, tailings (unwanted material) are deposited back onto the seafloor.

  • Potential Deep-Sea Mining of Seafloor Massive Sulfides: A ...

    Seafloor massive sulfides have the potential to become a significant mineral resource. The initial stages of exploration are underway and extraction could start within the next decade. However, the range and extent of potential impacts of Deep-Sea Mining (DSM) on

  • Study on Seafloor Mineral Processing for Mining of ...

    Seafloor Massive Sulfides (SMSs), which were formed by deposition of precipitates from hydrothermal fluids vented from seafloor, has been expected as one of unconventional mineral resources on deep seafloors in the oceans. The authors have proposed the concept of seafloor mineral processing for SMS mining, where valuable minerals contained in SMS ores are separated on seafloor while

  • Fall 2019: Mining the Land, Mining the Sea

    The theme of the Fall 2019 issue is “Mining the Land, Mining the Sea.” Articles explore seawater massive sulfides mining, tribal opposition to upper Midwest mining projects, produced water management options, and more.

  • Seafloor Mining - Beachapedia

    2020-10-02  For a number of reasons, the mining industry’s interest in seafloor massive sulfides is focusing mostly on vent fields in the western South Pacific. Many of the vent fields are located within the exclusive economic zones of small island nations, eliminating the potential complications of mining the seabed that lies under international waters.

  • Development of mining technology and equipment for ...

    2016-10-13  Abstract Seafloor massive sulfide (SMS) deposits which consist of Au, Ag, Cu, and other metal elements, have been a target of commercial mining in recent decades. The demand for established and reliable commercial mining system for SMS deposits is increasing within the marine mining industry.

  • Deep Seabed Mining - storage.googleapis

    Mining licences for hydrothermal vents have already been granted to Nautilus Minerals by the Papua New Guinean government to mine for sea floor massive sulphides in national waters 1,500 metres under the sea, despite significant environmental concerns and community opposition.

  • The Environmental Impact Assessment for Mining Seafloor ...

    Japan Oil, Gas and Metals National Corporation (JOGMEC) conducted the Environmental Impact Study research from 2008 fiscal year under contract to the Ministry of Economy, Trade and Industry (METI) for the commercialization of Seafloor Massive Sulphide (SMS). It is necessary to consider the potential impacts of mining on the surrounding environment and to promote the project for long-term ...

  • Blue mining Report 04

    One of the alternative resources of raw materials are deep sea deposits. The Blue Mining consortium has focused on extinct seafloor massive sulphide deposits and subsea polymetallic nodules. The consortium wants to provide breakthrough solutions for a sustainable deep sea mining value chain.

  • Seafloor massive sulphide exploration using deep-towed ...

    The TAG area is affected by long-term hydrothermal venting leading to alteration of oceanic crust and creation of seafloor massive sulphide (SMS) deposits (Humphris et al. 2015 ). The electrical properties differ greatly between gabbros, basalt, altered basalt and SMS, and the electrical conductivity is several orders of magnitude larger for SMS than for basalt (Spagnoli et al .