|Statement||James B. Cathcart, Richard P. Sheldon, and Robert A. Gulbrandsen ; United States Department of the Interior, Geological Survey.|
|Series||Open-file report -- 81-789., Open-file report (Geological Survey (U.S.)) -- 81-789.|
|Contributions||Sheldon, Richard Porter, 1923-, Gulbrandsen, Robert A., Geological Survey (U.S.)|
|The Physical Object|
Phosphate rock minerals are the only significant global resources of phosphorus. The United States is the world's leading producer and consumer of phosphate rock, which is used to manufacture phosphate fertilizers and industrial products. Subscribe to receive an email notification when a publication is added to this page. Monthly Publications. Get this from a library! Phosphate-rock resources of the United States. [James Bachelder Cathcart; Richard Porter Sheldon; Robert A Gulbrandsen; Geological Survey (U.S.)] -- An analysis of phosphate-rock resources, based on past estimates and all available recent information, indicates that sufficient phosphate exists in the United States to meet domestic demands for the. Summary Phosphate rock is a finite, non-renewable resource • Maximum recovery, utilization and recycling of phosphate rock, fertilizers, byproducts and wastes should be emphasized Reserves and resources • Reserves are a dynamic quantity • Resources can become reserves • There is no evidence for a “peak phosphorus” eventFile Size: KB. In , the United States produced about 54 million tons of phosphate rock, or about 40 percent of the world's production, of which a substantial amount was exported, both as phosphate rock and as chemical fertilizer. During the last decade, predictions have been made that easily ruinable, low-cost reserves of phosphate rock would be exhausted, and that by the end of this century, instead of.
World Phosphate Rock Reserves and Resources Executive Summary The amount of remaining phosphate rock reserves and resources worldwide has become an issue of speculation. It has been hypothesized that phosphorus (phosphate rock) production will "peak" in and then production will unavoidably decrease as the reserves are depleted. In , million metric tons of marketable phosphate rock, or phosphorite, was mined in the United States, making the US the world's third-largest producer, after China and phosphate mining industry employed 2, people. The value of phosphate rock mined was US$ billion.. As of , there are 10 active phosphate mines in four states: Florida, North Carolina, Idaho, and Utah. b. Resources as unprocessed phosphate rock of varying grades or concentrate. c. Including hypothetical resources based on the area limits of the deposits, Morocco resources may be about , mmt. d. Includes data from Algeria, Finland, Peru and Saudi Arabia (Al-Jalamid). e. Phosphate. International Strategic Minerals Inventory Summary Report, Circular C, Phosphate Deposits. Ch. in United States Mineral Resources, Professional Paper , Phosphate Rock. Ch. in Mineral Commodity Summaries, annual. Phosphate Rock. Mineral Industry Surveys, monthly. Phosphate Rock Resources of the United States.
However modern agriculture is dependent on phosphorus derived from phosphate rock, which is a non-renewable resource and current global reserves may be depleted in 50– years. World Phosphate Rock Reserves and Resources Executive Summary The amount of remaining phosphate rock reserves and resources worldwide has become an issue of speculation. It has been hypothesized that phosphorus (phosphate rock) production will "peak" in and then production will unavoidably decrease as the reserves are depleted. Similarly, the discussion might have benefited from attention to Edward Willis’s report titled “Phosphate Rock” in the census’s Report on Mineral Industries in the United States, which includes data on phosphate mining employment in (and annual production estimates from to ). McKinley’s primary sources do include. Although the United States is currently producing more phosphate rock than Morocco, Morocco’s phosphate reserves are estimated to be nearly six times that of the United States. Looking toward the future, this puts Morocco in a very advantageous position to become the .