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  • IMMS
    K-07 – Results of Neptune Minerals 2007 Southern Kermadec Arc Exploration Program

    By Justin C. I. Baulch, Robina Sharpe, Steven J. Downey, John P. Feenan, Kate M. Perrin

    Since becoming a public company in October 2005, Neptune Minerals has continued to advance its primary aims. Major achievements in the last year have been: • Successful completion of two simultaneou

  • IMMS
    Obtaining Approval For Deep Water Seafloor Mineral Extraction: The Solwara 1 Example

    By David Gwyther

    There is increasing recognition that in order for a development project to proceed successfully, it must first obtain a ?social licence to operate? from concerned stakeholders. Obtaining this ?licenc

    Jan 1, 2011

  • IMMS
    Shallow Submarine Hydrothermal Systems along the Tonga- Kermadec Arc, SW-Pacific: Geological and Metallogenetic Characteristics and Variabilities

    By U. Schwarz-Schampera, P. Stoffers

    The main characteristics of the 2545 km Tonga-Kermadec subduction system are the subduction of the Pacific Plate and its sedimentary cover in the Tonga-Kermadec trench and the extension and rifting o

    Aug 24, 2006

  • IMMS
    Chimney Massive Sulfides from the Vienna Woods Deposit (Bismarck Sea, PNG): Mineral Zonation and Geochemical Gradients

    By Janine Lahr, Peter E. Halbach

    The Manus Spreading Ridge is located within the EEZ of Papua New Guinea and lies in the Manus Basin ENE of the PNG Island and N of the Island New Britain. The divergent backarc spreading system is cau

    Sep 24, 2006

  • IMMS
    A Classification Society´s Experience with Subsea Mining

    By Marco Figoni

    The increased interest on deep water minerals resources is a challenge for both mining and oil industry. The exploration and production of oceans minerals require a synergy between of different techno

    Sep 14, 2011

  • 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
    Deep Seabed Resource Potential

    By G. A. Gross

    Technological development in the last two decades has provided access to the deep seabed and opened a new frontier for exploration. Interest in Canada has focused mainly on study of metallic mineral o

    Jan 1, 1985

  • IMMS
    Can Radium Isotopes Give Insight Into Volcanic And Hydrothermal Processes And The Sustainability Of Metal-Rich Sulfide Mineralization?

    By Robert G. Ditchburn

    Dating seafloor mineralization at hydrothermal centres of submarine arc volcanoes is important for understanding deep-seated volcanic events that can produce deposits rich in base and precious metals.

    Jan 1, 2011

  • IMMS
    Precious Metals In Seafloor Hydrothermal Deposits

    By R. Moss

    Gold and silver are important byproducts of mining volcanogenic massive sulfide (VMS) deposits. Both metals occur in VMS deposits ranging in age from the Archean to the currently forming massive sulfi

    Jan 1, 2011

  • IMMS
    Recent Developments In Offshore Diamond Mining In Southern Africa

    By Richard H. T. Garnett

    Diamonds were discovered on the coast of Namibia in 1907 but it was not until 1962 that the first gems were produced from offshore by a barge employing an airlift. Geophysical surveys and a sampling p

    Jan 1, 1992

  • IMMS
    Characterization Of Sand Mining Plumes

    By N. Wang

    The City of Honolulu mines sand from nearshore deposits for beach maintenance. The suction dredging operation creates a discharge plume which is carried by currents and other motions until it settles

    Jan 1, 1991

  • IMMS
    Comparative Investigations On Submarine Hydrothermal Mineralisation In The S.W. Pacific And Eastern Caribbean

    By D. Cronan

    Both the S.W. Pacific and Caribbean island arcs are host to submarine hydrothermal mineral deposits, the former more so than the latter. In the S.W. Pacific, the whole gamut of such deposits occurs o

    Jan 1, 2002

  • IMMS
    Nodules: Nineties & Beyond

    By William Siapno

    Manganese nodules, as metal ores, have for the most part been cast aside from further consideration within this century. However, in the decade of the 90s, rising demand at all levels of society, for

    Jan 1, 1991

  • IMMS
    Expected TTR Licence Approval and New Zealand Law Changes Ensure Chatham Marine Phosphate Project Has More Permitting Confidence

    By R. K. H. Falconer, Wood R. A., C. D. Castle

    "A deposit of phosphate nodules is on the Chatham Rise approximately 450 kilometres to the east of Christchurch in the South Island of New Zealand. The deposit contains sufficient rock phosphate to su

    Jan 1, 2017

  • IMMS
    Strategic Environmental Assessment Of Marine Sand And Gravel Extraction

    By Terence Day

    The traditional approach to mineral resource development is to identify the resource and then to undertake an environmental impact assessment of the effects of developing the resource. However, the tr

    Jan 1, 1995

  • IMMS
    Paleo-Latitude Of The Intertropical Convergence Zone During Late Cenozoic In The Pacific Manganese Nodule Belt

    By Kiseong Hyeong

    The Intertropical Convergence Zone (ITCZ), where the southeast and northeast trade winds converge, is the effective climatological barrier that separates the southern and northern hemispheres in terms

    Jan 1, 2004

  • IMMS
    Developing An Environmental Effects Monitoring Protocol For Small-Scale Marine Placer Mining: A Reconnaissance Survey Of Pine Cove, Bale Vertex Newfoundland

    By Ian B. Clark

    In October-November 1993, the Centre for Cold Ocean Resources Engineering, Memorial University of Newfoundland and University of Victoria jointly carried out reconnaissance surveys at Pine Cove, Baie

    Jan 1, 1994

  • IMMS
    Assessment Of The Rehabilitation Of The Sea-Bed Following Marine Aggregate Dredging

    By Siân E. Boyd

    Studies of benthic recolonization in the aftermath of marine aggregate dredging in the U.K. and elsewhere are limited and are largely confined to experimental circumstances. Investigations of the phy

    Jan 1, 2002

  • IMMS
    Impact Estimation Of Methane Hydrate Utilization On Atmospheric Carbon Emissions By Using Mass Balance Eco-Model

    By Tetsuo Yamazaki

    Natural methane hydrate has been scientifically studied as a global carbon reservoir. However, in Japan, it?s potential as an energy resource has been industrially highlighted, because there are few

    Jan 1, 2004

  • IMMS
    An Exotic Au- And Ag-Enriched Massive Sulfide Deposit From Mt. Jourdanne, Southwest Indian Ridge ? Composition And Genetic Implications

    By P. Halbach

    Hydrothermal activity is well known from many locations on most mid-ocean ridges, but no hydrothermally mineralized area had yet been found at the ultraslow spreading southwest Indian Ridge up to Octo

    Jan 1, 2002