Download or read book The Economic Feasibility of Mining Phosphorite Deposits of the Continental Shelf Adjacent to North Carolina written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Economic Feasibility of Mining Phosphorite Deposits of the Continental Shelf Adjacent to North Carolina written by and published by . This book was released on 1987 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The economic feasibility of marine mining phosphorite offshore North Carolina written by Douglas B. Groh and published by . This book was released on 1985 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the early 1980s as the phosphate industry reached record production there was concern over resource depletion. To counter supply constraints one possible option is the development of phosphorite resources of the Outer Continental Shelf. Phosphate rock finds 90% of its use in the agricultural sector and is essential for high crop yields. The world recession of the early 1980s changed the demand outlook for the future. Supply constraints anticipated in the late 1970s because of high demand, did not develop. U.S. demand slacked off as a result of several factors. Weak prices and government programs were in part responsible for a decline in application rates. The development of the wet process phosphoric acid method has been a contributing factor to foreign resource development. Countries are attempting to secure their own vast resources in order to become insulated from the U.S. government and the phosphate industry's policies. Clearly, the development of foreign resources threatens the U.S. phosphate industry's dominance. Development of North Carolina phosphorite deposits would alleviate dependence on lower-quality ore reserves of South Florida, for which land-use and environmental issues conflict. The development of phosphorite deposits will assure reserves and U.S. dominance in the phosphate export market. Extensive phosphate resource potential exists in flexure basins of the Frying Pan Phosphate District, off the North Carolina Coast. An exploration program is necessary for an economic evaluation and enables a mining and processing plan to be designed that is appropriate for exploiting the offshore deposit. The major concern in exploration of a phosphorite deposit is defining dimensional parameters, large enough in extent, that contain consistent ore grades amenable to favorable rates of production and recovery efficiencies. Various technologies have been proposed for marine mining of phosphorites. Of primary concern is the matrix quality and control of the rate of production. Hydraulic suction dredging appears to the be the most efficient method to mine 1,800,000 metric tons of ore per year. Based on a capital cost of $122.2 million and an operating cost of $58.25 per ton of phosphate rock, a market price of $100.00 per ton is required to break-even. A 10% return on investment is possible at a price of $160.00 per ton. Depletion estimates indicate that in 2038, Florida and North Carolina deposits will be mined out when mining costs are $100.00 per ton. At this time, a marine mining operation is expected to be economically feasible when the forecasted price is estimated to be about $116.00 per ton. The most important elements of economic feasibility are: 1) the market price and sufficient demand, 2) an amenable ore grade, 3) the production rate, and recovery percentage.
Download or read book Federal Register written by and published by . This book was released on 1985-01-09 with total page 1334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Outer Continental Shelf Oil and Gas Leasing and Production Program Annual Report written by Outer Continental Shelf Oil and Gas Leasing and Production Program (U.S.) and published by . This book was released on 1984 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Texasgulf Inc Mine Continuation written by and published by . This book was released on 1996 with total page 1004 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atlantic Update written by and published by . This book was released on 1986 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Offshore Statistics written by and published by . This book was released on 1987 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Leasing, exploration, production & revenues.
Download or read book MMS written by and published by . This book was released on 1989 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Geophysical Exploration at Sea written by Richard A. Geyer and published by CRC Press. This book was released on 2018-02-06 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook presents advanced research and operational information about hard minerals and hydrocarbons. It provides information in an integrated, interdisciplinary manner, stressing case histories. It includes review chapters, illustrations, graphs, tables, and color satellite images that present the results of gravity, geodetic, and seismic surveys and of 3-D sea floor sub-bottom visualizations. The data was obtained using satellites, aircraft, and ships from the Atlantic and Pacific Oceans, the Gulf of Mexico, and the Caribbean Sea.Major topics addressed in these volumes include geophysical methods used to explore for hydrocarbons, advanced radiometric and electrical methods for hard mineral searches, the role of geotechnology and seismic acoustics in overcoming geological hazards in selecting drilling sites and pipeline routes, and remote sensing techniques used to determine the physical properties of hydrocarbons.
Download or read book OCS National Compendium written by Gregory J. Gould and published by . This book was released on 1989 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book OCS Outer Continental Shelf Mining Program Norton Sound Lease Sale Proposed written by and published by . This book was released on 1991 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coastal States Marine Mining Laws written by Anthony C. Giordano and published by . This book was released on 1989 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Territorial Sea Extension written by United States. Congress. House. Committee on Merchant Marine and Fisheries. Subcommittee on Oceanography and the Great Lakes and published by . This book was released on 1989 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings Offshore Technology Conference written by and published by . This book was released on 1992 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 1989 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Minerals written by and published by . This book was released on 1987 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:
