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  • IMMS
    Preliminary Economic Evaluation of Rare Metal Recovery from Cobalt-rich Manganese Crusts

    By Tetsuo Yamazaki

    The importance of cobalt-rich manganese crusts on the Pacific seamounts for possible future rare metal sources has currently been recognized. The thin layer-type deposit characteristics affect not onl

    Jan 1, 2010

  • IMMS
    Features Of Distribution Pattern Of Cobalt-Rich Ferromanganese Crusts On The Micronesian And Marshall Islands Seamounts

    By Nobuyuki Okamoto

    Ferromanganese crusts on the seamounts in the Pacific Ocean are potential resources of cobalt, nickel, platinum and REEs. Particularly, those of the Republic of Marshall Islands and the Federated Stat

    Jan 1, 2011

  • IMMS
    Offshore Diamond Exploration In Australia

    By Ian Selby

    Recent offshore diamond exploration has been concentrated in the SW Joseph Bonaparte Gulf. I`IW Australia. Extensive high resolution seismic and sampling surveys have been carried out in Cambridge Gul

    Jan 1, 1998

  • IMMS
    Contrasting Styles Of Marine Diamond Mineralisation Requiring Different Mining Methodologies - A Case Study From Concession 2B South African West Coast

    By P. C. Hollick

    Two marine diamond deposits on concession 2b off Namaqualand along the South African Coast, have been systematically mined over the past year by the mv Moonstar. The two deposits, Smith?s Ulcer and We

    Jan 1, 1998

  • IMMS
    Offshore Diamond Mining on the African West Coast

    By Robert Goodden

    It is well known that diamonds are found in Kimberlite pipes within the earth’s crust and are also discovered where erosion has released them to be concentrated by rivers in trap sites within alluvial

    Sep 24, 2006

  • IMMS
    Gold Recovery Investigations With Radiotracers (198Au) And Relevance To Placer Operations

    By Daniel E. Walsh

    The recovery of most minerals, which are amenable to gravity concentration, is standardly determined by accurate sampling and assaying. .With respect to particulate - gold ores, sampling and assaying

    Jan 1, 1989

  • IMMS
    Distal Metalliferous Sediments and Search of Underwater Hydrothermal Deposits

    By Evgeny G. Gurvich

    While direct study of high temperature hydrothermal activity and the associated mineral formation as well as study of their scales are possible in the modern ocean, researchers are deprived of such

    Aug 24, 2006

  • IMMS
    International Region In The World Ocean: A Comparative Geological And Economic Assessment Of The Polymetallic Nodules Deposits

    By Valery M. Yubko

    During the last ten years seven applications for nodule-bearing areas of the World Ocean Floor International Region (IR) have been made by national companies of Russia (Yuzhmorgeologiya), France (IFRE

    Jan 1, 1994

  • IMMS
    Resource Estimation of Co-Rich Ferromanganese Crust Deposits: Bathymetric and Economic Considerations

    By Peter E. Halbach, Andreas Jahn

    "Co-rich ferromanganese crust deposits exist on slopes, summits and platforms of seamounts and guyots throughout the global oceans, where deep-sea currents have kept the seafloor structures more or le

    Jan 1, 2017

  • IMMS
    UNEP Shelf Programme, Article 76 and How it Affects Coastal States

    By Luana Karvel, Lars Kullerud, Morten Sørensen, Øystein Halvorsen, Øivind Lønne, Elaine Baker, Tina Schoolmeester, Joan Fabres, Yannick Beaudoin

    The UNEP Shelf Programme (USP) is the access point for a collaboration of international organizations with expertise in marine geoscience and maritime law. It was established in response to a United

  • IMMS
    Field Tests Of The Percussion-Waterlift And Vibracore/Vibralift Convertible Drill Systems

    By Walter L. O?Niell

    The Continental Shelf Division of the Marine Minerals Technology Center has recently completed field tests of the percussion- waterlift drill and the vibracore/vibralift convertible drill. The two sys

    Jan 1, 1991

  • IMMS
    A Remotely Operated Seafloor Coring System

    By Richard Petters

    Williamson and Associates, Inc of Seattle, Washington has recently built a remotely operated seafloor coring system for Nichiyu Giken Kogyo Ltd and the Metal Mining Agency of Japan (MMAJ). The system

    Jan 1, 1996

  • IMMS
    Stakeholders’ Perspectives on Deep Sea Mining: A Case Study in Germany

    By Tina Schneider

    Scientists show that polymetallic nodules and massive sulfides from deep sea mining contain valuable metals. These metals have the potential to overcome future shortages of supply. Hence, companies, g

    Jan 1, 2018

  • IMMS
    S-XRF Imaging of Fe-Mn Nodules and Crusts – A Cutting-Edge Technique to Decipher Trace Metal Speciation and Distribution

    By Tobias Hens, Andrew Frierdich, Barbara Etschmann, Joël Brugger, Barrie Bolton

    "Advancing our knowledge about trace metal distribution and abundance provides insight into formation, alteration, and trace element enrichment processes of ferromanganese nodules and crusts. A fundam

    Jan 1, 2017

  • IMMS
    Unlocking Critical Metals from Ferromanganese Nodules and Crusts – The Role of Iron during Dynamic Mineral Recrystallization

    By Tobias Hens, Andrew Frierdich, Joël Brugger

    The rapid advancement of green technologies in recent years is closely tied to an ever- increasing demand for raw materials. Innovative forms of zero-emission transportation and sustainable power gene

    Jan 1, 2018

  • IMMS
    Excavating the Deep Sea: Modeling the Pressure Effect in Rock Cutting Processes

    By Cees van Rhee, Rudy Helmons

    INTRODUCTION Seafloor Massive Sulphides are typically found near the oceanic ridges at larger water depths (>1km). The physical properties of SMS, as shown in table 1, are comparable to the properties

    Jan 1, 2018

  • IMMS
    Ocean Mining And Minerals Research: A Review Of The Bureau Of Mines Program

    By Benjamin W. Haynes

    The Federal government has a lengthy history in supporting and conducting research in the ocean mining and minerals field. The Federal effort has been and is currently focused primarily in four agenci

    Jan 1, 1989

  • IMMS
    The Prospects of Mining of Minerals from the Deep Seabed

    By Satya Nandan

    • A review of the structure and mandate of the Authority – its main functions. • The different types of mineral resources found in the deep seabed – their global distribution. • The Development of

  • IMMS
    The Mineralogy And Sulfur Isotope Geochemistry Of Hydrothermal Precipitates From 15°S Active Vent Site At South Atlantic Mid-Ocean Ridge

    By Ye Jun

    Until now, more than 200 sites of sea-floor hydrothermal activities are known on the midocean ridge but few of them are documented on South Mid-Atlantic Ridge (SMAR). This on some extent restricts our

    Sep 14, 2011

  • IMMS
    Deep-sea Mineral Potential of the South Pacific Waters

    By Nobuyuki Okamoto, Bhaskar Rao

    For a period of twenty years - from 1985 to 2005 - the Japan Oil, Gas and Metals National Corporation (JOGMEC) and Pacific Islands Applied Geoscience Commission (SOPAC) have jointly conducted surveys

    Oct 15, 2007