Encyclopedia of Global Resources part 75 provides a wide variety of perspectives on both traditional and more recent views of Earth's resources. It serves as a bridge connecting the domains of resource exploitation, environmentalism, geology, and biology, and it explains their interrelationships in terms that students and other nonspecialists can understand. The articles in this set are extremely diverse, with articles covering soil, fisheries, forests, aluminum, the Industrial Revolution, the . Department of the Interior, the hydrologic cycle, glass, and placer mineral deposits. . | 688 Lead Global Resources Further Reading Atlas Ronald M. and Richard Bartha. Microbial Ecology Fundamentals and Applications. 4th ed. Menlo Park Calif. Benjamin Cummings 1998. Burkin A. R. Chemistry of Leaching Processes. In Chemical Hydrometallurgy Theory and Principles. London ICP 2001. Keller Edward A. Environmental Geology. 8th ed. Upper Saddle River . Prentice Hall 2000. Killham Ken. Soil Ecology. New York Cambridge University Press 1994. Madigan Michael T. John M. Martinko Paul V. Dunlap and David P. Clark. Brock Biology of Microorganisms. San Francisco Pearson Benjamin Cummings 2009. Marsden John and C. Iain House. Leaching. In The Chemistr y of Gold Extraction. 2d ed. Littleton Colo. Society for Mining Metallurgy and Exploration 2006. Robertson G. P. and P. M. Groffman. Nitrogen Transformations. In Soil Microbiology Ecology and Biochemistry edited by Eldor A. Paul. 3d ed. Boston Academic Press 2007. See also Biotechnology Igneous processes rocks and mineral deposits Mining wastes and mine reclamation Secondar y enrichment of mineral deposits Sedimentar y processes rocks and mineral deposits Soil degradation. Lead Category Mineral and other nonliving resources Where Found Lead is widely distributed in the Earth s crust it has an estimated percentage of the crustal weight of making it more common than silver or gold but less common then copper or zinc these are the four minerals with which lead is most commonly found in ore deposits. All five may occur together in a deposit or only two or three may occur in concentrations sufficiently rich to be economically attractive to miners. Primary Uses The major use of lead in the United States is in the lead-acid batteries used in automotive vehicles. Because lead is so toxic a fact that has been known since ancient times many of its former uses have been curtailed or discontinued. While it is still used in cables ammunition solders shielding of radiation and electrical parts its use as an antiknock .
