Laserfiche WebLink
FII FE �rar fa _ . rs� • �rtc . u5 <br /> April 28, 1992 <br /> Updated <br /> 3� <br /> Metals----T-_ SouthnayNorthbay_ S.F. -U.S.-Mean - Notes <br /> ' - <br /> rotassium 1. ° 2% 1.170 . 1.5% <br /> Rubidium <20-45 <20-45 58 <br /> Scandium 15-40 15-40 15-40 7.5 <br /> Selenium *+S 0.5 0.5 . 0.1 0.26 1 <br /> Silicon - 27% 35% 31% <br /> ' Silver *+$ - - - - 1, 2 <br /> Sodium 1.5-7% 1.5-7%a - 0.7% 0.59% <br /> Strontium 150 70-100 200-3500 120 <br /> Sulfur - 800 S00 :200 <br /> Thallium *+ _ _ _ - 1, 2 <br /> ' Thorium - 2.6-6.7 2.6-6.7 8.6 <br /> Tin - - . 1 2-7 2-7 0-89 <br /> Titanium 0.3% 0.2% 0.5-1.5% 0.24% <br /> ' Uranium - 2.8 0.35-2.0 2.3 <br /> Vanadium+ 150-500 150-500 150-500 58 1 <br /> ' Ytterbium 3 5 3 2.6 <br /> Yttrium 30 30 20 21 <br /> Zinc *+ 110-510 124-510 120-510 48 1 <br /> Zirconium <20-100 200 <20-100 180 <br /> 1. One of 13 Priority Pollutant Metals (*) <br /> One of 17 EPA Method 60/1017000 Metals;Tf <br /> Lme or 6 Er L V]Llt 14 <br /> y t ll.l.t j 1r1G�71� t,a/ <br /> 2. Not listed in U.S.G.S. Paper 1270 <br /> 3. U.S. Mean iS a geometric mean value <br /> shown for comparison purposes only <br /> ' 4. Data Source - Shacklette, H.T. and Boerngen, 7.G., 1984, Elernnt.ConcentratjQnsin And <br /> Other Surficial Materiils of the Conterminous United5tateS, U.S. Geological Survey Professional <br /> Pager 1270, United States Government Priming office,Washington D.C. <br />