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Regulations for the Exploration of Polymetallic Sulphides and Cobalt Rich Crusts in the International Seabed Authority
By Satya Nandan
The International Seabed Authority is currently considering regulations for prospecting and exploration for polymetallic sulphides and cobalt rich crusts. The deposits of these two types of minerals
Aug 24, 2006
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Detection and Quantification of Seafloor Ilmenite Deposits Utilizing Induced Polarization
By Curtis Clement
Williamson & Associates, Inc. has developed a marine mineral exploration tool using an induced polarization technology (IP) under license from the US Geological Survey. Developed by Jeff Wynn at the
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Namco: Progression Through Sampling to Full Scale Diamond Production Offshore Namibia
By Roger J. Daniel
Major interest and investment in southern Africa's west coast diamond deposits have resulted in the development of various tools for sampling and mining in the varied geological conditions encoun
Jan 1, 1998
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ACS: A Seafloor Drilling System for the Deepsea Methane Hydrate Program Offshore India
By M. E. Williamson
A seafloor based robotic drilling system is being developed for the National Institute of Ocean Technology in Chennai, India to support a National initiative for marine methane hydrate research. The
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Preliminary Results of ROV Expeditions to Kuroko-type Deposits in the EEZ of Japan
By Kokichi Iizasa
Modern Kuroko-type deposits have been much reported in submarine calderas and cauldrons in the EEZ of Japan since 1988. Some of them have been found based on heavy mineral analysis of sediments in whi
Oct 15, 2007
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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
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Search for Sediment-hosted Seafloor Polymetallic Sulfides: What Are We Doing Wrong?
By Timothy F. McConachy, Christopher J. Yeats, Ray Binns
Various kinds of sediment-hosted polymetallic sulfide deposit are known on land in ancient marine sequences, many tending to be larger and more valuable than massive sulfide deposits genetically ass
Aug 24, 2006
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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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Application Of High Resolution Element Analysis Of N-E Pacific Sediments
By In Kwon Um
The XRF Core-Scanner system performs non-destructive analysis of elements from Mg to U, in concentrations of ppm levels on split cores with digital images. Using the AVAATECH XRF Corescanner system, w
Jan 1, 2011
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Comparative Study On Mining Robots Design For Polymetallic Nodules And Seabed Massive Sulfides
By Sup Hong
Herein, concept designs of two different types of mining robots are concerned, which are aimed for developments of deep seabed mineral resources: polymetallic nodules (PMN) and seabed massive sulfides
Jan 1, 2011
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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
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The Metallogeny of Ancient Greenstone Belts and Implications for Modern Submarine Hydrothermal Systems
By H. L. Gibson, U. Schwarz-Schampera, Mark Hannington
Ancient ore deposits provide important clues for the understanding of the origin and distribution of modern submarine hydrothermal systems. An analysis of the formation conditions, tectonic settings,
Sep 24, 2006
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Mineralization Processes At Ocean Ridges
By Johnson R. Cann
Ocean floor sulfide deposits are now known from many parts of the world mid-ocean ridge system and from some seamounts. Clearly they can be expected to occur commonly on the ocean floor. However, only
Jan 1, 1988
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Canada's Shelf Resource Potential
By Peter B. Hale
Canada has a long history of marine-related industry and onshore mining. Even so, commercial interest in marine mining, excluding seawater mineral extraction and offshore extensions of hardrock deposi
Jan 1, 1985
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Marine Survey Methodology Of The Surficial Geology And Morphology Of Northwestern Graham Island
By Brian D. Bornhold
A comprehensive multi-disciplinary marine geological survey of northwestern Graham Island, Queen Charlotte Islands, British Columbia, Canada was conducted by Offshore Survey and Positioning Services L
Jan 1, 1985
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Marine Mining Is Getting A Bad Deal From Environmentalists
By Charles L. Morgan
For the past twenty years or so the oceans of the world have been transformed in the minds of most Americans from the ultimate and nearly infinite receptacles for sewage and other wastes to an almost
Jan 1, 1989
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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
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Small Scale Geothermal Development Potential For Pacific Volcanic Islands
By Harry J. Olson
Geothermal Energy has a great potential for meeting the electrical and thermal energy requirements of many countries and territories lying along tectonically active zones within and surrounding the Pa
Jan 1, 1991
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Modeling and Field Studies of Nodule Dewatering Plumes Generated by Surface Processing Vessels
By Michael Goldin, Jonathan Ladner, Thomas Peacock, Nathaniel Johnson, Patrick Haley, Kris van Nijen, Andrew Rzeznik, Pierre Lermusiaux, Matthew Alford, Carlos Munoz-Royo
Surface processing vessels for deep-sea nodule mining operations will produce dewatering plumes that will be released at some depth into the ocean water column. We are studying all aspects of this par
Jan 1, 2017
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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