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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
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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
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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
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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
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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
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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
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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
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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
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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
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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.
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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