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A Catastrophic Summit Collapse, Pit Crater Formation, High-Temperature Venting, And Mineral Formation Processes On L_ihi Submarine Volcano
By Alexander Malahoff
The summit of L_ihi submarine volcano changed dramatically after seismic activity beneath L_ihi during the month of August 1996. Bathymetric re-surveys of the L_ihi edifice using SeaBeam, Simrad and
Jan 1, 1998
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A Comparison Of The Results Of Three Systems For Setting Sediment Quality Guidelines For Trace Metals
By Derek V. Ellis
Sediment Quality Guidelines can provide target values that should not be exceeded when seabed deposits are disturbed for mining, waste discharge or other purposes. Three sets of Guidelines have appear
Jan 1, 1995
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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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A New Concept Of Easy Pre-Site Survey Method Of Deep Sea Hydrothermal Deposits
By Shinichi Takagawa
The deep sea hydrothermal deposits are one of the most prospecting resources, and various works to develop these mines are now underway. There are also various methods for the pre-site survey of th
Jan 1, 2011
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A New Phosphate Anomaly in the South Mexican Pacific
By Arturo Carranza Edwards
Sedimento II oceanographic cruise, on board of the B/O El Puma, shows a new high anomaly or phosphate associated with shelf sediments from the south Mexican Pacific. Recently, were found two anomalie
Jan 1, 2000
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A Remotely Operated Seafloor Coring System
By Richard Petters
Williamson and Associates, Inc of Seattle, Washington has recently built a remotely operated seafloor coring system for Nichiyu Giken Kogyo Ltd and the Metal Mining Agency of Japan (MMAJ). The system
Jan 1, 1996
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A Review Of Radiometric Dating Methods Used Inassessing Submarine Volcanic Arc-Related Mineraldeposits
By Robert G. Ditchburn
Msjflkcisokng During the past sixteen years, GNS Science has developed a number of radiometric methods for dating massive sulfide samples from submarine arc and back-arc volcanoes. This has improved o
Sep 14, 2011
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A Self-Regulatory Model For The Management Of The Environment And Public Issues In Marine Mining
By Julian Malnic
The emerging marine minerals exploration and mining industry is currently focused mainly on the technical elements for its success such as developing exploration and mining technologies. However, in o
Jan 1, 2000
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Abstracts - Marine Minerals: Recent Innovations In Technology ? Title ? Table Of Contents ? Introduction
Welina mai to the 40th Underwater Mining Institute, UMI 2011 - Marine Minerals: Recent Innovations in Technology. Since the first conference in Milwaukee, Wisconsin in 1970, the UMI Founder Professor
Jan 1, 2011
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Alaska's Marine Minerals: A Case For Assessment And Evaluation
By James C. Barker
Alaska's expansive continental shelf represents future opportunities for marine mineral development. Although today's metal prices and subsidized foreign mineral production continue to disco
Jan 1, 1991
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An Innovative Seafloor Drill System For Offshore Geotechnical Site Investigation And Seafloor Mineral Exploration
By Tim J. Boyd
Gregg Marine, Inc. (headquartered in Signal Hill, California) has recently introduced an innovative seafloor drill system for offshore geotechnical site investigation and seafloor mineral exploration.
Jan 1, 2011
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An Innovative Solution to a Common Problem: SAGRES Decision Support for Deep-Sea Mining and Maritime Spatial Planning Activities
By Paulo Chaves, Márcia Gonçalves, João R. S. Carvalho, Fernando J. A. S. Barriga, Edgar Carrolo, Tiago Luna, Ricardo Rato, Anabela Bento
INTRODUCTION For the last decades, deep-sea marine resources such as seabed massive sulfides (SMS), polymetallic nodules and ferromanganese crusts (Fe-Mn crusts) have received an ever- increasing amou
Jan 1, 2018
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An Integrated Approach To The Assessment Of Anthropogenic Disturbance At Marine Sand & Gravel Extraction Sites
By D. S. Limpenny
Marine benthic habitats are vulnerable to the influence of a wide range of anthropogenic activities (e.g. sand and gravel extraction, dredged material disposal and trawling). Traditionally, benthic e
Jan 1, 2004
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Application Of Ferromanganese Marine Mineral Tailings In Concrete And Ceramics
By J. C. Wiltshire
Both ferromanganese crusts and nodules present potential processors with enormous volumes of tailings of dubious environmental character: most processing scenarios fail to utilize the uneconomic manga
Jan 1, 1991
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Arctic Ocean Fe-Mn Crusts and Nodules: A Genetic Model and Final Analyses
By Natalia Konstantinova, Kira Mizell, James R. Hein, Georgy Cherkashov, Amy Gartman, Mariah Mikesell
"Two types of metallic deposits have been found in the deep Arctic Ocean: Hydrothermal Fe, Cu, and Zn sulfide deposits form along Gakkel Ridge in the Eurasia Basin and associated ridges between Greenl
Jan 1, 2017
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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
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Assessment Of The Rehabilitation Of The Seabed Following Marine Aggregate Dredging
By S. E. Boyd
Studies of benthic recolonization following the cessation of dredging in U.K. waters and elsewhere are limited, and are largely confined to experimental circumstances. Investigations of the physical
Jan 1, 2004
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AUV-Based Long-Range Exploration For Hydrothermal Activity Between 13°-33°S Along The Southern Mid- Atlantic Ridge
By Sven Petersen
The southern Mid-Atlantic Ridge (SMAR) is one of the least-explored spreading centers in the world with respect to hydrothermal activity. In the past 8 years research focused mainly on the ridge segme
Sep 14, 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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Base And Precious Metal Resources In Seafloor Polymetallic Sulfides
By Mark D. Hannington
Seafloor polymetallic sulfides have been found in diverse volcanic and tectonic settings on the ocean floor at water depths ranging from 3700 meters to <1500 meters. More than 100 occurrences of hydro
Jan 1, 1994