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Showing: 1 to 10 of 2290 matches for "ocean gold mining"  Page   1   2   3   4   5   6   7   8   9  next TITLE Gold Mineralization In The Marine Environment; A Possible Marine Mineral Exploration And Mining Target  SUMMARY ... To find a big deposit might only take an exploration model exclusively designed for gold exploration on the ocean floor. ... mining: ... AUTHOR Pichler, Thomas PUBLISHED 1993 TITLE San Francisco Paper - Gold-Production in California  SUMMARY ... The gold is taken from quartz, placers, pockets, seam-diggings, hydraulic drift, ocean-beach sand ... wing-damming, dry-washing, and other forms of mining. ... AUTHOR Yale, Charles G. PUBLISHED 1912 TITLE Likely Directions In Deep Ocean Mining To 2010  SUMMARY ... ocean mining development by 2010, but seafloor massive sulphides of copper/gold/zinc offer an alternative bet for a start-up by 2010. ... AUTHOR Heydon, David PUBLISHED 2004 TITLE Developing An Environmental Effects Monitoring Protocol For Small-Scale Marine Placer Mining: A Reconnaissance Survey Of Pine Cove, Bale Vertex Newfoundland  SUMMARY ... ABSTRACT In October-November 1993, the Centre for Cold Ocean Resources Engineering, Memorial ... of a shallow water small-scale marine placer gold mining operation ... AUTHOR Clark, Ian B. PUBLISHED 1994 TITLE Environmental Considerations For The Future Mining Of Polymetallic Sulfides On The Deep Ocean Floor  SUMMARY ... Mining Institute -- September 1992 Several polymetallic sulfide deposits (copper, zinc, f lead, silver, f gold) presently exposed at the surface of the ocean ... AUTHOR Scott, Steven D. PUBLISHED 1992 TITLE Meeting the Challenge of Material Demands From the Oceans  SUMMARY ... MINING ENSINEERING 29 ... Magnetite Fc Ilmenite Ti Rutile Chromite Cr Natlve Elements Gold (02) Au ... the continents and represent about 20% of the total ocean floor. ... AUTHOR Li, Ta M. ; Tinsley, C. Richard PUBLISHED 1975 TITLE The Isthmus Of Panama - A Forgotten El Dorado  SUMMARY ... early history of Panama, aside from Balboa's discovery of the Pacific Ocean in 1513 ... that Panama con- tained :wo of the most noteworthy gold mining districts of ... AUTHOR Tippett, M. C. PUBLISHED 1989 TITLE Ore Reserves In Mineral Sand Deposits  SUMMARY ... At this stage it was assumed to be a river deposit, as it was more than a kilometre from the ocean. Gold mining continued into the nineteen- thirties, then ... PUBLISHED 1979 TITLE Opportunities For Mining Investment In Third World Africa -Styles Of Project Financing In A Changing Scene  SUMMARY ... Now that the IMF has encouraged mining in Third World ... map that much of the Indian Ocean rim, which ... Commodities with high unit value, primarily gold and diamonds ... AUTHOR Hester, B. PUBLISHED 1993 TITLE Slime-cement fill as a stope support for gold mines  SUMMARY ... methods for the backfilIing of stopes in deep gold mines are being ... My message to the mining community, therefore, is to get on with it: find ... Deep-ocean mining ... AUTHOR O’Ferrall, R. C. More ; MacAulay, R. J. PUBLISHED 1978 Showing: 1 to 10 of 2290 matches for "ocean gold mining"  Page   1   2   3   4   5   6   7   8   9  next Search Again