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  • IMMS
    Seafloor Backscatter Data: A Cost and Time-Effective Method for Exploration of Seafloor Massive Sulfide Deposits? A case study at the TAG district

    By Delphine Pierre, Jean-Marie Augustin, Anne-Sophie Alix, Charline Guérin, Cecile Cathalot, Yves Fouquet, Arnaud Gaillot, Ewan Pelleter, Carla Scalabrin, Florian Besson

    With the world’s growing demand for metals, seafloor massive sulfides (SMS) deposits are now seen as a possible mineral resource that could contributes to secure metal supply for human needs. SMS depo

    Jan 1, 2018

  • IMMS
    Simulation of Two-Phase Flow in Airlift Pump Using 1D Two-Fluid Model

    By Ivar Eskerud Smith, Ole Jørgen Nydal, Niranjan Reddy Challabotla, Svein Sævik

    INTRODUCTION Airlift pumping, utilize compressed air that is injected at the bottom of a vertical pipe submerged in the water, reduces the mixture density inside the pipe and lifts the liquid or mixtu

    Jan 1, 2018

  • IMMS
    Recent Developments; U.S. Atlantic Shelf Marine Mineral Surveys

    By Andrew E. Grosz

    The Atlantic Continental Shelf (ACS) of the United States includes about 391,000 km2 extending from the shoreline to the 200-m isobath. It varies in width from a fraction of a kilometer (offshore of s

    Jan 1, 1988

  • IMMS
    Hydrothermal Activity along the Central Spreading Ridge of North Fiji Basin: Results from 2012-2013 Explorations

    By Jonguk Kim

    The North Fiji Basin (NFB) is a mature intraoceanic back arc basin with an age of ~12 Ma. Recent volcanism and spreading activity are focused along the Central Spreading Ridge (CSR), A ridge segment m

    Sep 14, 2011

  • IMMS
    Rare and Valuable Metals for High-Tech Applications Found in Marine Ferromanganese Nodules and Crusts: Relationships To Genetic Endmembers - Introduction

    By Andrea Koschinsky

    Ferromanganese crusts have traditionally been considered a potential ore for Co, whereas ferromanganese nodules have typically been considered a potential ore for Ni and Cu. However, both nodules and

    Jan 1, 2010

  • IMMS
    Application Of Ferromanganese Marine Mineral Tailings In Concrete And Ceramics

    By J. C. Wiltshire

    Both ferromanganese crusts and nodules present potential processors with enormous volumes of tailings of dubious environmental character: most processing scenarios fail to utilize the uneconomic manga

    Jan 1, 1991

  • IMMS
    The Role of Bimodal Magmatism and its Products in Volcanogenic Massive Sulfide Ore-Forming Systems: A Case Study from the Middle Okinawa Trough, Japan

    By Toru Yamasaki

    "Bimodal lithostratigrafic assemblages are of significance in volcanogenic massive sulfide (VMS)-hosted lithology. The largest deposits are either bimodal-siliciclastic or maficsiliciclastic, and the

    Jan 1, 2017

  • IMMS
    Temporal Variation Of Environmental Characteristics By Changing Water Column Structure In The Northeast Equatorial

    By Seung-Kyu Son

    Environmental properties of the northeast Equatorial Pacific along 131.5 degrees west, between 5 degrees and 13 degrees north latitude, were investigated in association with changes in water column st

    Jan 1, 2001

  • IMMS
    Numerical Modelling Of The Sediment Transport Due To Deep Sea Mining

    By J. A. Jankowski

    The situation in the raw material market has brought into consideration the commercial exploitation of the mineral deposits on the deep sea bed and in particular the manganese nodules. They occur gene

    Jan 1, 1995

  • 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
    Sand Mining On U.S. Continental Shelves: Exploration And Exploitation For Shore Protection And Environmental Restoration - Introduction

    By Charles W. Finkl

    Coastal and marine aggregate (sand and gravel) mining on US continental shelves is a major activity that supplies industrial and commercial demands for these raw materials. Because Pacific, Atlantic,

    Jan 1, 2005

  • IMMS
    Polymetallic Sulfide Formation And Gold Enrichment On Hydrothermal Vents Of Pacific Seamounts

    By Alexander Malahoff

    Mineral zonation studies were conducted on hydrothermal vents of two hot spot volcanoes. One study site is located within the Axial Caldera of the axial hot spot volcano of the Juan de Fuca Ridge. The

    Jan 1, 1988

  • IMMS
    Marine Minerals Research In The United States: Recent Results From The Marine Minerals Technology Center

    By Sukumar Bandopadhyay

    The Marine Minerals Technology Center (MMTC) was authorized by an act of the United States Congress in 1996. The act established several marine minerals research centers in the U.S., including one at

    Jan 1, 2005

  • IMMS
    The HERMINE Cruise: An Example of Multi-Scale and Multi Objective Exploration Strategy.

    By Audrey Boissier, Marie-Anne Camon, Cecile Cathalot, Yves Fouquet, Laurent Bignon, Arnaud Agranier, Ewan Pelleter, Sylvain Bermell, Florian Besson

    INTRODUCTION In October 2014, on behalf of the French government, Ifremer, along with the International Seabed Authority (ISA), signed a contract to start a detailed exploration program for seafloor m

    Jan 1, 2018

  • IMMS
    Universal Tool And Technology For Seabed Borehole Mining

    By Grigori Abramov

    As we enter into the 21st Century, miners are looking more attentively at new mining technologies allowing decrease environment damage along with operational cost. This technic would allow developing

    Jan 1, 2000

  • IMMS
    Boundaries Of Impact Of Marine Aggregate Mining In Shelf Waters

    By Richard C. Newell

    The United Kingdom marine aggregate mining industry is the second largest of its kind after Japan. Materials for the construction industry, sea defences and for many other purposes are exploited from

    Jan 1, 2000

  • IMMS
    Do Natural Changes Mask Artificial Impacts on Benthic Ecosystem Over a Period of Time?

    By B. S. Ingole, S. Jai Sankar, A. B. Valsangkar, R. Sharma, B. Nagender Nath, N. H. Khadge, P. A. Loka Bharathi

    After the simulated ‘mining’ experiment (INDEX) in the Central Indian Ocean (in 1997); the restoration of benthic environment was monitored for 4 years (2001-2005) at 5 locations in and around the tes

    Oct 15, 2007

  • IMMS
    Environmental Considerations For The Future Mining Of Polymetallic Sulfides On The Deep Ocean Floor

    By Steven D. Scott

    Several polymetallic sulfide deposits (copper, zinc, f lead, silver, f gold) presently exposed at the surface of the ocean floor are of sufficient size and apparent grade that they will someday be ser

    Jan 1, 1992

  • IMMS
    Further Environmental Considerations For Marine Mining: Mine Closure And Environmental Terrorism

    By Derek Ellis

    There are two environmental issues which have only recently begun to need planning in detail for marine mining. One is the environmental consequences of mine closure; the other is environmental terror

    Jan 1, 2005

  • IMMS
    Marine Minerals Research In The United States --- Recent Results From The Marine Mining Technology Center

    By Sukumar Bandopadhyay

    The Marine Mining Technology Center (MMTC) was authorized by an act of the United States Congress in 1996. The act established several marine minerals research centers in the U.S., including one at t

    Jan 1, 2004