barite world production, reserves, and future prospects:重晶...

来自 : www.taodocs.com/p-41464936...h 发布时间：2021-03-26

------------------ 8 TABLES Page TABLE 1. Barite consumption by major industries in the United States ------------------------------------------------ 4 2. Barite: world production and U.S. production and imports, in millions of short tons, through 1967 _________________ 5 3. United States barite production, in short tons, by State, 1882-1967 -------------------------------------------- 6 4. Barite: world production, 1945-67, and world reserves ____ 7 BARITE: WORLD PRODUCTION, RESERVES, AND FUTURE PROSPECTS By DONALD A. BROBST ABSTRACT The world reserves of barite in 1969 are estimated at about 200 million tons. This apparently large supply will last only 20 years, if production grows no faster during the next 20 years than it did in the past 20. In 1945, world barite production was about 1 million tons annually; by 1966, it was 4 million tons. It is startling to realize that of the estimated total world barite production of 83 million tons, nearly 60 million tons was produced during 1945-67. At least 80 percent of the world s barite is consumed in drilling mud for oil and gas wells; the remainder is used largely in the chemical, glass, paint, and rubber industries. In the intensifying search for oil and gas and the expanding industrialization of the world to supply the needs of an increasing population, barite consumption likely will continue to rise. Barite deposits are of three major types-vein and cavity filling, bedded, and residual. Since World War II, nearly 50 nations have reported barite production, chiefly from vein and bedded deposits. In the United States, the world s chief producer and consumer of barite, production is mostly from bedded and residual deposits. Other major barite production comes from the bedded and vein desposits of Canada, Mexico, and the nations of Europe. Geologic factors suggest that world barite production and reserves can be increased in the coming years. Possibilities for the discovery of new barite deposits similar to the large, high-grade, bedded deposits of Nevada and Arkansas are good. INTRODUCTION This report is a summary of world trends in the uses and pro- duction of barite and presents a tabulation of the world s reported reserves, as well as a discussion of the geologic features of barite deposits that will bear upon the supplies of barite available to fill projected future demands in world markets. With increasing de- mands for oil, gas, and mineral raw materials arising from the industrialization of many nations and the expanding economies of other内容来自淘豆网www.taodocs.com转载请标明出处.