Search Documents
Search Again
Search Again
Refine Search
Refine Search
- Relevance
- Most Recent
- Alphabetically
Sort by
- Relevance
- Most Recent
- Alphabetically
-
The Prospects of Mining of Minerals from the Deep Seabed
By Satya Nandan
• A review of the structure and mandate of the Authority – its main functions. • The different types of mineral resources found in the deep seabed – their global distribution. • The Development of
-
The Mineralogy And Sulfur Isotope Geochemistry Of Hydrothermal Precipitates From 15°S Active Vent Site At South Atlantic Mid-Ocean Ridge
By Ye Jun
Until now, more than 200 sites of sea-floor hydrothermal activities are known on the midocean ridge but few of them are documented on South Mid-Atlantic Ridge (SMAR). This on some extent restricts our
Sep 14, 2011
-
Hydrothermal Hematite/Silica Rocks from the Blanco Fracture Zone, Northeast Pacific
By David A. Clague, James R. Hein, Robert W. Embley, Robert C. Vrijenhoek, Randolph A. Koski
We report preliminary results for a group of unique samples collected with MBARI’s ROV Tiburon on August 12, 2005. The samples were collected from the East Blanco Depression (EBD) diffuse-flow hydrot
Aug 24, 2006
-
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
-
Lithogeochemistry Of "Exhalites" Associated With Massive Sulfides And Their Origin As Fallout From Hydrothermal Plumes
Ancient volcanogenic Cu-Zn-Pb-Ag-Au massive sulfide ores commonly have associated with them along strike and in the immediate hanging wall a distinctive sediment that is thin, usually cherty and metal
Jan 1, 1993
-
The Sonne Ore-Field -- The First Massive Sulfides From The Indian Ocean Floor
By Peter E. Halbach
The Central Indian Ridge (CIR), the boundary between the African and Indian plates, forms a SSE trending mid-oceanic accretionary system in the equatorial Indian Ocean (Fig. 1), extending to the north
Jan 1, 1994
-
Deep-sea Mineral Potential of the South Pacific Waters
By Nobuyuki Okamoto, Bhaskar Rao
For a period of twenty years - from 1985 to 2005 - the Japan Oil, Gas and Metals National Corporation (JOGMEC) and Pacific Islands Applied Geoscience Commission (SOPAC) have jointly conducted surveys
Oct 15, 2007
-
Research Updates: Gamma Ray Sled Exploration, Gulf Of Mexico Sand Resources, And Offshore Oregon Placer Investigations
By Katherine H. Walton
The research affiliate projects of the Continental Shelf Division of the Marine Minerals Technology Center concentrate on the development of technologies and methodologies for the exploration 4 and as
Jan 1, 1991
-
Underwater Hyperspectral Imaging of Marine Mineral Deposits
By Geir Johnsen
Hyperspectral remote sensing has been used extensively on land to identify minerals for the mining industries. An underwater hyperspectral imager (UHI) has been developed at the Norwegian University o
Jan 1, 2010
-
Marine Mineral Resources Of The East Coast Of The U.S.: A Review
By Carl H. Hobbs
The marine mineral resources of the U.S. middle and south Atlantic shelf are little utilized. The largest resource, sand and gravel, is used for beach nourishment and protection and, to a much lesser
Jan 1, 1992
-
China, India And South Korea - Why And How The Three "Newcomers" In Deep Seabed Mining Should Cooperate
By Jan Magne Markussen
China, India and South Korea are three developing/newly industrialized countries that can show a very positive economic development in latter years. Moreover the three countries also feature amongst t
Jan 1, 1994
-
The Inquiry Into The Influence Of The Underwater Scattering Layer On Seabeam And The Tentative Idea Of The Application Of The Acoustic Properties Of Manganese Nodules
By Cheng Xiangzhou
The China Ocean Mineral Resources Research and Development Association (COMRA) conducted a topographic survey in its deep seabed claim area with the SeaBeam system in 19475. After analyzing the data,
Jan 1, 1996
-
Nearshore Geochemical Exploration Techniques
By John Noakes
Marine scientists at the University of Georgia, have in the past few years, designed, developed and refined two geochemical survelliance systems for the exploration of hard mineral resources on the se
Jan 1, 2011
-
Eastern English Channel Broadscale Mapping
By Sally Philpot, Siân E. Boyd, Hubert L. Rees, Emma Bee, Carla Houghton, Ceri James, Silvana N. R. Birchenough, S. Limpenny David, A. Coggan1 Roger, Koen Vanstaen
Every year approximately 22 million tonnes of marine sand and gravel are dredged form British waters. The eastern English Channel (EEC) contains substantial reserves, a proportion of which have been
Sep 24, 2006
-
Placer Minerals Of The West Coast Of India: A Retrospective & Prospective
By Subramanian Rajendran
Placer minerals are one of the rich natural resources readily made available primarily and broadly in the form of inland placers, beach placers and offshore placers. The exploitation of placer mineral
Jan 1, 2001
-
Seafloor Features In Urals Massive Sulfide
By V. Zaykov
The Urals massive sulfide deposits are concentrated in Silurian -Devonian fold belt extending for 1500 km with length from 50 to 150 km. By paleodynamic reconstmction it is established that they were
Jan 1, 1993
-
Experimental Application of Underwater Hyperspectral Imaging on Seafloor Massive Sulphides from the Loki’s Castle on the Arctic Mid-Ocean Ridge, Norway
By Øystein Sture, Kurt Aasly, Ben Snook, Sigurd A. Sørum
INTRODUCTION Efficient exploration methodologies for base metal deposits have huge benefits for future deep sea mining endeavours, and underwater hyperspectral imaging (UHI) has been variably demonstr
Jan 1, 2018
-
Gas Hydrates Of The West Coast Of India ? A Neo-Tectonic Perspective
By S. Rajendran
Gas Hydrates (Methane Hydrates) are solid, ice-like substances composed of water and natural gas. They occur naturally in areas of the world where methane and water combine at appropriate conditions o
Jan 1, 2005
-
Exploration and Estimation of Gravel Resource Potential in Southeast Chukchi Sea Continental Shelf Off Kivalina, Alaska
By S. Naidu, J. Kelley, Roger Amato
The Alaskan Continental Shelf covers 76 % of the total shelf area of the United States. There are a lot of potential gravel deposits in the Alaskan offshore region. The gravel resources are currentl
-
High-Resolution Side-Scan Mapping Of Large Areas Of The Mid-Atlantic Ridge Using A Fleet Of Autonomous Underwater Vehicles (AUVs)
By Sven Petersen
In April 2010 three REMUS6000 series autonomous underwater vehicles (AUVs) have been used to simultaneously map large areas near the Mid-Atlantic Ridge (3°N) axis in water depths ranging from 1,000m t
Jan 1, 2011