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  • IMMS
    A Geologic Survey Of The Near-Shore Regions Around White Island, New Zealand; Sidescan Imagery, Rock And Gas Samples From The 1995 MMTC-WIS Survey.

    By Gregory J. Kurras

    In 1995 the Marine Minerals Technology Center (MMTC) of the University of Hawaii conducted a sidescan sonar survey and sampling expedition of the submarine geology and hydrothermal systems surrounding

    Jan 1, 2011

  • IMMS
    AUV-Based Small Scale Quantitative Predictive Mapping of Mn-Nodules: Precondition for Ideal Mining Path Planning

    By Timm Schoening, Greinert. Jens, Iason –. Zois Gazis

    "Ferromanganese nodules are again of interest because of their high concentrations of Ni, Co, Cu as well as REE. With regards to an operational underwater mining industry, one of the main questions an

    Jan 1, 2017

  • IMMS
    Sulphuric Acid Pressure Leaching Of The Matte Prepared From Deep-Sea Manganese Nodules

    By Kyung-Ho Park

    The smelting leaching process is known as one of the most favorite methods for the processing of deep-sea manganese nodules because of its smaller environmental impact and easiness of manganese recove

    Jan 1, 2003

  • IMMS
    Sediment Geochemistry Associated With Polymetallic Nodules In The Central Mexican Pacific ? Introduction

    The chemical composition of the nodules varies with the type of manganese minerals and the size and characteristics of their nucleus, but those who have an economic interest have the following composi

    Jan 1, 2011

  • IMMS
    Sediment Geochemistry Associated with Polymetallic Nodules in the Central Mexican Pacific

    The chemical composition of the nodules varies with the type of manganese minerals and the size and characteristics of their nucleus, but those who have an economic interest have the following composi

    Sep 14, 2011

  • IMMS
    The Campbell Ferromanganese Nodule Field (SW Pacific Ocean) Formed Beneath The Deep Western Boundary Current: An Important Source Of Paleo-Environmental And Chronostratigraphic Information

    An extensive ferromanganese nodule field south of New Zealand (Fig. 1) has existed beneath the flow of the Deep Western Boundary Current (DWBC) and Antarctic Circumpolar Current (ACC) for at least the

    Jan 1, 2003

  • IMMS
    Detailed Sulfur-Isotope Investigation Of The TAG Hydrothermal Mound And Stockwork Zone, 26°N, Mid-Atlantic Ridge: Results From ODP Leg 158

    By J. Bruce Gemmell

    ODP Leg 158 drilled seventeen holes into the active TAG hydrothermal mound and underlying stockwork, 26°N, Mid-Atlantic Ridge. Drilling in five different areas, including a high-temperature black smok

    Jan 1, 1998

  • IMMS
    Relative Assessments Of Manganese Nodules And Co-Rich Crusts In South Pacific EEZ's

    By D. S. Cronan

    Studies on polymetallic manganese nodules and Co-rich crusts in the EEZ's of the Cook, Line, Ellice and Phoenix Islands between 0-20°S show that Ni and Cu reach their greatest combined abundances

    Jan 1, 1989

  • IMMS
    Advances In Seabed Mapping And Sediment Profiling Technology

    By Freddy Pøhner

    The paper describes recent advances in the technology for mapping of the seabed with acoustic instrumentation. These instruments are typically single beam echo sounders, multibeam echo sounders and hi

    Jan 1, 2003

  • IMMS
    Research on the Growth Characteristic of Co-rich Crusts from the Western Pacific

    By Jiahua Pan, Yanxiong Mei, Shuqin Liu, Rongfu Pei

    Growth characteristics of Co-rich crusts from the Western Pacific have been approached. The thick crust shows 3 structural layers: compact upper layer, porous middle layer, and compact lower layer.

  • IMMS
    Jade Hydrothermal Field, Okinawa Trough: First Discovery Of Ag-And Au-Rich Massive Sulphides In An Intracontinental Backarc Basin

    By P. E. Halbach

    On June 26, 1988, the Jade Hydrothermal Field was discovered in the Okinawa Trough by the German RV Sonne. This research cruise has taken place within the scope of a German-Japanese cooperative projec

    Jan 1, 1989

  • IMMS
    Occurrences Of Ferromanganese Crusts In The Lemkein Seamount Of RMI: Preliminary Results

    By Jai-Woon Moon

    Lemkein seamount located in the west of the Kuwajleen Atoll of RMI is a relatively samll, simple-shaped, peaked type seamount with its base at 4,500 m and summit at 1,452 m water depths. Ferromanga

    Jan 1, 2000

  • IMMS
    Identification Of A Small Man-Made Marine Placer

    By Caleen E. Kilby

    A program of surveying and studying the surficial sediments of northern Juan de Fuca Strait was undertaken between 1988 and 199 1. Detrital sediments were mapped from the intertidal zone down to 100 m

    Jan 1, 1994

  • IMMS
    Mineralogy of Polymetallic Nodules in the Central Mexican Pacific (b0fead6b-fb77-4585-9d75-45915ccf5818)

    By Mayumy Amparo Cabrera-Ramírez

    Polymetallic nodules are a widespread resource in the Pacific Ocean, particularly in the areas of Clarion-Clipperton (Cronan, 2000). The most abundant mineral phases are forme d by iron and manganese

    Sep 14, 2011

  • IMMS
    Reconsideration of Fine-scale Dating of Ferromanganese Crusts for More Reliable Microstratigraphic Correlation

    By H. Oda, L. E. Fong, K. K. McBride, B. P. Weiss, F. J. Baudenbacher, A. Usui

    Fine-scale dating is a key parameter in characterizing the growth history of hydrogenetic ferromanganese crusts. We once compared several dating methods, micropaleontological (calcareous nanofossil),

    Aug 24, 2006

  • IMMS
    Placer Deposits Of India With Special Reference To Sea Level Changes

    By S. Rajendran

    The area of the Exclusive Economic Zone (EEZ) of India is about 2.014 million km2 and the resource evaluation of placer deposits is one of the objectives of Government of India. Placers are detrital m

    Jan 1, 1998

  • IMMS
    Role Of Magmatic Fluids In The Formation Of Seafloor Hydrothermal Deposits

    By Steven D. Scott

    The source of ore metals for base and precious metal volcanogenic massive sulfide (vms) deposits has been debated for decades. Metals can be obtained from high-temperature sea water-rock reactions in

    Jan 1, 2005

  • IMMS
    Prospecting For Submerged Treasures: Korean Deep Seabed Mining Exploration

    By Ki-Hyune Kim

    The Korea Ocean Research and Development Institute conducted its first exploration for deepsea mineral resources in 1983, and began a systematic deepsea prospecting in 1989 among Micronesian islands a

    Jan 1, 2011

  • IMMS
    Methods of Manganese Nodule Exploration in the German License Area

    By Carsten Rühlemann

    Between 2008 and 2013, the German Federal Institute for Geosciences and Natural Resources (BGR) carried out five exploration cruises to the German license area in the eastern Pacific Nodule Belt. The

    Sep 14, 2011

  • IMMS
    New Exploration Guides For Volcanogenic Massive Sulfide Deposits: From Sea To Land

    By James M. Franklin

    Research on modern hydrothermal systems provides quantitative measures of the processes of formation of hydrothermal fluids and of precipitation mechanisms from them. Studies of ancient deposits provi

    Jan 1, 1998