Colorado River Valley

Zielinski, R. A., S. Asher-Bolinijer, and A. L. Meier. 1995. Uraniferous waters of the Arkansas River Valley, Colorado, U.S.A. A function of geology and land use. Applied Geochem. 10 133-44. 

Angeles, for example, spent 220 million dollars to bring Colorado River water more than 300 miles from Parker Dam. Ohio, with some 400 reservoirs already, plans more. Texas has more than 40 major surface storage facilities with a total capacity of over 13 million acre-ft. The U.S. Bureau of Reclamation now proposes its 3 billion dollar basin development plan for California s Central Valley applying the multiple-purpose philosophy to the entire basin, the bureau envisions 38 reservoirs, plus dams, power plants, transmission lines, pumping stations, and hundreds of miles of transfer canals. This plan would conserve the water resources of the San Joaquin and Sacramento Rivers and of the Central Valley Basin as a whole. 

Blomgren, W.E., Milliken, J.G. (1953). Colorado-Big Thompson Project. Indian Journal of Power and River Valley Development 3(2) 89-97. P Blomgren, W.E. (1955). Messtationen ftlr Niederschlage mit Radiomeldung. Schweizerische Bauzeitung 73(2 ). 320. 

Lapis lazuli, or simply lapis, is a rock composed of a mixture of minerals, usually calcite, pyrite and lazurite (qq.v.), with the latter being the dominant constituent. Occurrence is as a blue rock containing brassy yellow crystals (pyrite) with white streaks due to calcite. It is formed from the metamorphism of limestones by an alkaline igneous intrusion (Deer et al., 1992 Rutley, 1988). Other silicate minerals such as hatiyne, sodalite, diopside, forsterite, muscovite and wollastonite (. v.) may also be present. The term is often used incorrectly to refer to the mineral lazurite, which is only one of its components. Lapis lazuli is most famously known from the deposit in the Kokcha River valley, Afghanistan, where it has been mined for more than 6000 years for use in jewellery, as an ornamental stone and as a pigment, ft is also known from Mt Vesuvius (Italy), Colorado and California (USA), Siberia and Chile. 

Where acid drainage is well developed and extensive, the costs of remediation can be high. In the Summitville, Colorado district (USA), for example, efforts to limit the contamination of fertile irrigated farmlands in the nearby San Luis Valley and protect aquatic life in the Alamosa River will cost an estimated 100 million or more (Plumlee, 1994a). 

The Lime Creek drainage is an alpine karst system developed in Mississippian Leadville Limestone on the west slope of the Sawatch Range, approximately 20 kilometers (12 miles) northeast of Aspen, Colorado (Fig. 1). The mapped area is approximately 23 km (9 mi ), at elevations between 2,740 and 3,350 m (9,000 to 11,000 ft). The area is bounded by tributary valleys of the Fryingpan River on the north, south, and and west. The eastern extent of the study area is defined by uplifted and exposed Precambrian granite, gneiss, and schist (Fig. 2). 

Libby, Willard Frank (1908-1980) American Physical chemist Willard Frank Libby was born in Grand Valley, Colorado, on December 17, 1908, to Ora Edward Libby and Eva May (nee Rivers). After attending grammar and high schools near Sebastopol, California (1913-26), he attended the University of California at Berkeley from 1927 to 1933, taking his bachelor s and Ph.D. degrees in 1931 and 1933, respectively. 

Figure 2. Saturation state of anhydrite in a mixture of Dolores river water and Paradox Valley brine, western Colorado, at likely aquifer temperatures of 50 C to 130 C and 500 bars. The chemical...

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