Lake Mead

The most significant deposits are in southern Nevada, in the Lake Mead area, and in the McDermitt caldera complex on the Nevada—Oregon border. In the McDermitt caldera, lithium probably originated from volcanic sedimentary rocks deposited in the caldera moat. There is evidence that areas of the caldera were hydrothermically active contributing to enrichment of lithium (14). This and other similar deposits are not economically viable as of this writing. These deposits do represent a significant lithium reserve, however, whenever large expansion in demand occurs. 

Cizdziel JV, Hinners TA, Pollard JE, Heithmar EM, Cross CL. 2002. Mercury concentrations in fish from Lake Mead, USA, related to fish size, condition, trophic level, location, and consumption risk. Arch Environ Contam Toxicol 43 309-317. 

Various reservoirs Lake Mead, Ariz Salton Sea, Calif... 

Kruse S, McNutt M, Phipps-Morgan J, Royden L, Wernicke B (1991) Lithospheric extension near Lake Mead, Nevada - A model for ductile flow in the lower crust. J Geophys Res 96(B8) 4435-4456 Kutzbach JE, Guetter PJ, Ruddiman WF, Prell WL (1989) Sensitivity of climate to late Cenozoic uplift in Southern Asia and the American West Numerical experiments. J Geophys Res 94 18,393-18,407 Kutzbach JE, Prell WL, Ruddiman WF (1993) Sensitivity of Eurasian climate to surface uplift of the Tibetan Plateau. J Geol 101 177-190... 

Because perchlorate is highly soluble, it is not expected to concentrate in soil. Due in part to improved analytical methods, perchlorate has been detected in surface water and groundwater near various facilities that have manufactured and tested solid rocket fuels, most notably in California, Nevada, and Utah. Perchlorate has been measured in the public drinking water supply in several areas in California and in Lake Mead in Nevada. 

Fossil salts can also be dissolved when water-storage or water-transmission structures are placed over saline sediments. The Lake Mead reservoir behind Hoover Dam in southern Nevada overlies deposits of gypsiferous sediments. Dissolution of this gypsum substantially increases the salinity of the Colorado River during its passage through the reservoir. 

The Reservoir At elevation 1221.4, Lake Mead, Ae largest man-made lake m Ae United States, contains 28,537,000 acre-feet (an acre-foot is Ae amount of water required to cover 1 acre to a depA of 1 foot). This reservoir will store Ae entire average flow of Ae river fi>r two years. That muA water would cover Ae enAe state of Peimsylvania to a depA of 1 ft. 

Lake Mead extenA approximately 110 mi upstream tovmd Ae Grand Canyon and approximately 35 mi up Ae Viigin River. The widA of Lake Mead wiries firom several hun-Aed feet m Ae canyons to a maximum of 8 mi. The reservoir covers about 157,900 acres, or 247 square miles. 

Dobson, G.C. (1938).Discussion ofTurbid water through Lake Mead. Trans. ASCE 103 759-763. Dobson, G.C., Johnson, J.W. (1940). Studying sediment loads in natural streams. Civil Engineering 10(2) 93-96. 

Forester, D.M. (1938). Disc, of Turbid water through Lake Mead. Trans. ASCE 103 755-757. Forester, D.M. (1957). Discussion of Methods of determining consumptive use of water in irrigation. Trans. ASCE 122 818-819. 

Snyder, S., K. Kelly, A. Grange, G. Sovocool, E. Snyder, and J. Giesy. 2001. Pharmaceuticals and personal care products in the waters of Lake Mead, Nevada. In Pharmaceutical and Personal Care Products in the Environment—Scientific and Regulatory Issues, edited by C. Daughtonand T. Jones-Lepp, pp. 116-139 Washington, DC American Chemical Society, (Symp. Ser. 791). 

Lake Mead in the United States. In Lake Mead the waters are so pure and devoid of phosphates that very few fish can survive because they have nothing to eat. 

Blair, W.N. (1978) Gulf of California in Lake Mead area of Arizona and Nevada during late Miocene time. American Association of Petroleum Geologists Bulletin, 62 1159-1170. 

Harbeck G. E., Jr., Kohler, M. A., and Koberg, G. E. 1958. Water loss investigations Lake Mead studies, U.S. Geol. Surv., Prof Pap. 298. 

Other areas in the US with small lithium pegmatite deposits include the western part of Arizona from Phoenix to Lake Mead. In the White Picacho district distinctly zoned pegmatites range up to 610 m in length by 60 m in width, with zones... 

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