phosphate rock usgs

Phosphate in Western Sahara: The Desert Rock That Feeds ...

Nov 29, 2016· If you include this disputed region, Morocco holds more than 72 percent of all phosphate-rock reserves in the world, according to the most recent United States Geological Survey …

Phosphate Deposits - USGS

leaching. Phosphate leached from guano phosphatizes the underlying rocks in some areas, forming apatite where the host rock is limestone and forming aluminum- or aluminum-iron-phosphate minerals where the underlying rock is a silicate. Individual deposits of both igneous apatite and marine phos­

Data Set of World Phosphate Mines, Deposits, and ... - USGS

U.S. Geological Survey National mineral databases—MASMILS and MRDS. DATA SOURCES, PROCESSING, AND ACCURACY Data on more than 1,600 phosphate deposits, mines, and occurrences were compiled from a variety of sources, including …

Phosphate mining in the United States - Wikipedia

Phosphate rock mined in the United States, 1900-2015 (data from US Geological Survey) Large-scale phosphate mining in the US began in 1868 in coastal South Carolina. Access to river transport and proximity to the port of Charleston encouraged exports, and by 1885 South Carolina was producing half the world's phosphate.

Phosphate rock resources of the United States - USGS

In 1980, 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 ...

Mineral resource of the month: Phosphate rock - USGS

As a mineral resource, "phosphate rock" is defined as unprocessed ore and processed concentrates that contain some form of apatite, a group of calcium phosphate minerals that is the primary source for phosphorus in phosphate fertilizers, which are vital to agriculture.

Phosphorus Supply and Demand - MIT

Phosphorus and nitrogen are mined from the ground and removed from the air, such that the entire cycle is thrown out of balance. Current Production and Prospective Deposits. Phosphorus is mined primarily as phosphate rock, a fairly common rock found worldwide.

Today's (and Tomorrow's?) Phosphate – Utah Geological Survey

Phosphate is also used to produce phosphoric acid and elemental phosphorous for a variety of industrial applications. According to the U.S. Geological Survey, China, the U.S., Morocco, and Western Sahara are currently the largest producers of phosphate rock. Most of the U.S. phosphate production comes from Florida and North Carolina, but Idaho ...

Reserves and Resources DC World Phosphate Rock

phosphate rock reserves/resources of the Earth will be exhausted in the next century with a peak in phosphorus production occurring in 2033-2034. Essentially, all these articles reference U.S. Geological Survey (USGS) Mineral Commodity Summaries for phosphate rock reserve and …

World phosphate mines, deposits, and occurrences

USGS Open-File Report 2002-156. Data set of world phosphate mines, deposits, and occurrences-- Part A. Geologic data; Part B. Location and mineral economic data

Phosphorite - Wikipedia

World Phosphate Rock Reserves and Resources S. Van Kauwenbergh Geologist and Principal Scientist Research and Development Division IFDC Fertilizer Outlook and Technology Conference Hosted by The Fertilizer Institute and the Fertilizer Industry Roundtable November 16-18, 2010 Savannah, GA

World phosphate mines, deposits, and occurrences - USGS

World phosphate mines, deposits, and occurrences Metadata also available as - - [Parseable text] - Frequently anticipated questions: What does this data set describe? How might this data set be cited? What geographic area does the data set cover? What does it look like? Does the data set describe conditions during a particular time period?

Mineral resource of the month: phosphate rock - USGS

Phosphate rock minerals provide the only significant global resources of phosphorus, which is an essential element for plant and animal nutrition. Phosphate rock is used primarily as a principal component of nitrogen-phosphorus-potassium fertilizers, but …

Geology of Phosphate Deposits - USGS

In the hard-rock phosphate district, exposures in old phosphate mines and cuttings from auger-drill holes show that there is a fairly consistent stratigraphic sequence throughout this area near the west side of …

Uranium in phosphate rock - pubs.er.usgs.gov

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Phosphate - Wikipedia

A Phosphate is a chemical derivative of phosphoric acid.The phosphate ion (PO 4) 3− is an inorganic chemical, the conjugate base that can form many different salts.In organic chemistry, a phosphate, or organophosphate, is an ester of phosphoric acid. Of the various phosphoric acids and phosphates, organic phosphates are important in biochemistry and biogeochemistry (and, consequently, in ...

Geology and Phosphate Deposits of the Permian Rocks in ...

Geology and Phosphate Deposits of the Permian Rocks in Central Western Montana By ROGER W. SWANSON GEOLOGY OF PERMIAN ROCKS IN THE WESTERN PHOSPHATE FIELD GEOLOGICAL SURVEY PROFESSIONAL PAPER 313-F This report concerns work done as part of the program of the Department of the Interior for development of the Missouri River basin, and


tricalciuni phosphate and extending for many miles, and they const!-: tute a reserve supply that is almost inexhaustible. An estimate of the quantity of rock phosphate available in the United States was made in 1915 by the United States Geological Sur­ vey and need not be revised to …

Florida Rocks & Minerals | Florida Department of ...

Florida Geological Survey_DEP Staff_Agatized Coral with Quartz.jpg In 1979 the Florida Legislature designated agatized coral as the Florida State Stone. It is described in the statute as a chalcedony pseudomorph after coral, appearing as limestone geodes lined with botryoidal agate or quartz crystals and drusy quartz fingers, indigenous to Florida.

Geology and sciences: PHOSPHATE ROCK

Aug 16, 2011· World Resources: Domestic reserves data were based on U.S. Geological Survey and individual company information. Phosphate rock resources occur principally as sedimentary marine phosphorites. The largest sedimentary deposits are found in northern Africa, China, the Middle East, and the United States.

PhosPhate Rock - Mineral Resources Program - USGS ...

Domestic Data Coverage U.S. Geological Survey (USGS) domestic phosphate rock production data were obtained from monthly and semiannual voluntary canvasses of all companies that owned phosphate rock mines. All companies responded to the canvass in 2004. There were 14 active phosphate rock mines, and 1 mine was idle for the entire year (table 2).

Global Phosphate Rock Reserves and Resources, the Future ...

Global Phosphate Rock Reserves and Resources, the Future of Phosphate Fertilizer S. J. Van Kauwenbergh . ... depletion rely on USGS data for phosphate rock reserve and resource estimates. 16 billion tons reserves (USGS, 2010) IFDC . a. Reserves as usable or marketable product. b. Resources as unprocessed phosphate rock of varying grades or ...

USGS-Minerals_Phosphate_Rock Administrator Authentication

USGS-Minerals_Phosphate_Rock list run by usgs-minerals_phosphate_rock-owner at listserv.usgs.gov USGS-Minerals_Phosphate_Rock administrative interface (requires authorization) Overview of all listserv.usgs.gov mailing lists

Phosphate Rock Statistics and Information - usgs.gov

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. Annual Publications

Peak phosphorus - Wikipedia

In 2017, the United States Geological Survey (USGS) estimated that economically extractable phosphate rock reserves worldwide are 68 billion tons, while world mining production in 2016 was 261 million tons. Assuming zero growth, the reserves would thus last for 260 years.

World Reserves of Phosphate Rock - Dynamic, Unfolding ...

Phosphate rock reserve estimates for select countries from 1989 to 2011 (Source: USGS). Table 2 shows the latest USGS estimates for world PR reserves for the top 10 holders. Morocco is estimated to have about 75 per cent of the worlds PR reserves, while China is a distant second with 6 per cent.

National Minerals Information Center - usgs.gov

On-line statistical and economic publications designed to provide timely statistical data on production, distribution, stocks, and consumption of significant mineral commodities. Understanding the whole system of materials flow, from source to ultimate disposition, can help us better manage the use ...

Historical Statistics for Mineral and Material ... - usgs.gov

2014 version Online Only. For global mineral and material commodities data, see Data Series 896 General Notes. The U.S. Geological Survey (USGS) provides information to the public and to policy-makers concerning the current use and flow of minerals and materials in the United States economy.

Phosphate rock in April 2019 (PDF) - usgs.gov

Phosphate rock in April 2019 (PDF) Detailed Description. PDF format Phosphate rock in April 2019 (PDF) Mineral Industry Surveys . Details. Date added: Tuesday, July 9, 2019. Explore More Science. phosphate rock statistics; Phosphate Rock Mineral Industry Surveys

Mineral Commodity Summaries 2001--Phosphate Rock

3Marketable phosphate rock, weighted value, all grades, domestic and export. 4Defined as imports - exports + adjustments for Government and industry stock changes. 5See Appendix C for definitions. U.S. Geological Survey, Mineral Commodity Summaries, January 2001