U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2004-5090Vertical Distribution of Trace-Element Concentrations and Occurrence of Metallurgical Slag Particles in Accumulated Bed Sediments of Lake Roosevelt, Washington, September 2002
[Concentrations of trace elements are given in micrograms per kilogram unless otherwise noted. Abbreviations: cm, centimeter; pCi/g, picoCuries per gram;<, less than; -, no data]
CCR-624 Depth interval (cm) Cesium-137(pCi/g) Aluminum Antimony Arsenic Barium Beryllium Bismuth Cadmium Calcium Carbonate (percent) Organic carbon (percent) 0-3 0.15 74,000 2.4 12 840 2.2 0.53 2.2 13,000 0.02 1.4 3-6 - 73,000 3.1 10 820 2.3 .54 2.1 13,000 .03 1.4 9-12 .38 76,000 5.2 14 940 2.5 .67 7.6 11,000 .03 1.6 12-15 .46 75,000 3.3 14 950 2.4 .70 12 11,000 .04 1.6 18-21 - 74,000 4.5 14 960 2.3 .69 10 15,000 .26 1.2 21-24 .73 73,000 4.9 17 1,100 2.3 .74 11 17,000 .36 1.2 27-30 1.6 78,000 5.2 22 1,000 2.1 .82 16 18,000 .39 1.6 30-33 .62 70,000 4.4 13 760 1.9 .56 8.0 16,000 .12 1.6 33-35 .38 69,000 3.3 13 740 1.8 .49 5.4 16,000 .1 1.6 36-39 - 77,000 9.8 9.0 880 2.3 1.5 18 17,000 - - 39-42 - 80,000 6.9 11 990 2.5 1.9 23 16,000 - - 42-45 - 94,000 5.6 21 920 2.6 1.4 18 14,000 .13 1.8 45-48 - 81,000 2.9 18 840 2.5 1.1 15 12,000 .06 1.8 Depth interval(cm) Cerium Cesium Chromium Cobalt Copper Gallium Iron Lanthanum Lead Lithium Magnesium 0-3 100 6.4 64 16 49 18 46,000 58 90 38 12,000 3-6 110 6.4 62 16 70 19 42,000 65 110 39 12,000 9-12 110 7.1 91 17 74 19 45,000 110 240 42 13,000 12-15 100 7.2 94 16 67 19 43,000 100 280 42 13,000 18-21 100 6.9 74 15 47 18 40,000 76 300 41 15,000 21-24 120 6.7 74 15 51 18 39,000 91 400 40 16,000 27-30 110 6.5 75 18 60 18 44,000 100 540 40 13,000 30-33 84 5.0 50 14 43 17 40,000 57 320 34 11,000 33-35 86 4.6 46 15 37 17 40,000 53 250 30 10,000 36-39 - 6.0 64 17 66 20 48,000 49 600 37 12,000 39-42 - 7.0 80 18 88 20 46,000 58 920 42 14,000 42-45 80 7.6 93 21 86 22 55,000 55 680 45 14,000 45-48 76 7.0 67 19 66 19 48,000 50 450 39 15,000 Depth interval (cm) Manganese Mercury Molybdenum Nickel Niobium Phosphorus Potassium Rubidium Scandium Selenium Silver 0-3 1,100 0.16 0.88 36 18 1,200 19,000 110 15 0.34 <3 3-6 910 .17 .69 33 16 960 19,000 110 15 .38 <3 9-12 1,100 1.0 1.1 41 20 1,200 20,000 120 16 .77 <3 12-15 1,100 1.2 1.2 42 18 1,200 21,000 120 15 1.1 <3 18-21 940 .58 1.7 36 18 1,100 21,000 120 14 .63 <3 21-24 970 .84 2.5 37 18 1,300 21,000 120 13 .62 <3 27-30 1,300 1.1 4.5 40 18 1,600 20,000 110 15 .62 <3 30-33 980 .61 2.2 26 15 1,000 16,000 91 15 .35 <3 33-35 960 .47 2.1 25 17 940 16,000 86 14 .24 <3 36-39 1,400 - 4.8 32 20 1,400 19,000 100 16 - <3 39-42 1,500 - 4.6 39 22 1,400 22,000 120 16 - <3 42-45 1,500 1.2 2.8 40 22 1,400 25,000 120 19 .75 <3 45-48 1,200 1.0 1.5 33 24 1,100 22,000 110 16 .69 <3 Depth interval (cm) Sodium Strontium Tantalum Thallium Thorium Titanium Uranium Vanadium Ytterbium Yttrium Zinc 0-3 13,000 270 1.2 1.0 13 4,400 3.4 120 3.2 42 380 3-6 13,000 260 1.2 1.3 13 4,400 3.1 110 3.2 38 390 9-12 11,000 250 1.7 1.9 13 4,300 3.7 120 4.3 80 680 12-15 11,000 250 1.4 1.7 13 4,200 3.8 110 4.0 78 860 18-21 12,000 260 1.7 1.1 13 4,300 3.4 100 3.2 47 1,000 21-24 12,000 280 1.8 1.1 14 4,200 3.8 100 3.3 54 1,100 27-30 9,500 240 2.1 1.6 13 4,300 5.2 120 4.6 90 1,400 30-33 13,000 260 .65 1.2 11 4,500 3.2 110 3.6 50 730 33-35 14,000 280 1.2 1.0 10 4,600 3.0 120 3.2 44 530 36-39 11,000 230 - 1.2 13 4,800 4.3 130 - 56 1,100 39-42 10,000 230 - 1.7 14 4,500 4.6 120 - 75 1,600 42-45 9,400 210 1.2 1.5 14 4,800 4.1 130 4.0 60 1,400 45-48 11,000 200 1.8 1.1 13 4,900 3.0 110 3.7 48 1,100 CCR-643 Depth interval (cm) Cesium-137 (pCi/g) Aluminum Antimony Arsenic Barium Beryllium Bismuth Cadmium Calcium Carbonate (percent) Organic carbon (percent) 0-3 0.19 74,000 3.2 13 1,100 2.3 0.59 2.3 11,000 0.05 1.2 3-6 - 72,000 4.0 11 1,100 2.2 .62 2.6 11,000 .07 1.2 9-12 - 69,000 4.6 15 1,000 2.3 .66 7.7 11,000 .06 1.3 15-18 .58 71,000 3.3 16 1,100 2.2 .68 7.9 12,000 .10 1.1 21-24 - 71,000 4.5 23 1,100 2.1 .86 10 20,000 .54 .98 27-30 .15 83,000 2.8 16 940 2.5 .85 2.8 20,000 .48 .64 33-36 .11 78,000 2.5 14 870 2.6 .82 2.4 19,000 .47 .61 36-39 .10 74,000 2.4 14 870 2.3 .80 2.4 20,000 .50 .56 39-42 - 67,000 2.7 16 870 2.1 .72 4.0 20,000 .49 .67 42-45 .61 70,000 3.7 18 1,000 2.1 .87 7.1 18,000 .38 .75 48-51 1.2 65,000 3.1 16 1,200 2.2 .57 8.0 18,000 .36 1.9 54-57 .98 78,000 7.4 24 1,200 2.1 .97 18 22,000 .68 1.1 Depth interval (cm) Cerium Cesium Chromium Cobalt Copper Gallium Iron Lanthanum Lead Lithium Magnesium 0-3 120 6.5 83 16 58 17 41,000 74 94 40 14,000 3-6 110 6.6 80 15 76 17 39,000 74 130 39 14,000 9-12 120 6.3 110 15 76 17 39,000 120 310 37 14,000 15-18 130 6.3 100 15 60 17 38,000 120 280 39 14,000 21-24 120 5.9 85 14 50 17 36,000 96 400 36 16,000 27-30 120 9.3 86 16 41 20 43,000 67 96 46 15,000 33-36 120 9.2 75 16 39 19 41,000 64 78 46 15,000 36-39 130 8.8 72 15 38 18 39,000 73 79 43 15,000 39-42 130 7.1 67 13 37 17 35,000 83 190 37 14,000 42-45 120 5.5 74 13 44 16 34,000 89 380 33 13,000 48-51 100 4.9 68 12 42 15 31,000 88 380 30 13,000 54-57 110 6.6 93 15 73 18 41,000 122 920 41 17,000 Depth interval (cm) Manganese Mercury Molybdenum Nickel Niobium Phos-phorus Potassium Rubidium Scandium Selenium Silver 0-3 1,500 0.21 1.4 48 20 1,200 22,000 120 14 0.58 <3 3-6 1,000 .28 1.4 44 19 1,100 22,000 120 13 .54 <3 9-12 1,200 1.3 1.6 47 20 1,400 22,000 110 13 1.0 <3 15-18 990 1.3 1.8 45 19 1,400 22,000 120 13 .84 <3 21-24 790 1.0 3.6 40 20 1,200 22,000 110 12 .70 <3 27-30 850 .14 1.6 41 18 990 26,000 140 16 .35 <3 33-36 840 .10 1.2 40 18 930 25,000 140 14 .31 <3 36-39 840 .10 1.2 38 21 960 24,000 140 14 .38 <3 39-42 740 .34 2.0 35 17 970 21,000 120 12 .40 <3 42-45 760 .86 3.3 37 18 1,200 22,000 110 12 .49 <3 48-51 780 .88 3.9 33 20 1,100 22,000 100 10 .58 <3 54-57 1,100 1.8 9.6 44 19 1,600 23,000 120 14 .76 <3 Depth interval (cm) Sodium Strontium Tantalum Thallium Thorium Titanium Uranium Vanadium Ytterbium Yttrium Zinc 0-3 12,000 290 1.3 1.1 14 4,200 3.4 110 2.7 32 330 3-6 12,000 280 1.4 1.5 13 4,200 3.3 100 2.8 35 370 9-12 12,000 280 1.4 1.7 14 4,200 3.7 100 3.9 75 590 15-18 12,000 290 1.4 1.3 14 4,200 3.5 100 3.4 60 710 21-24 12,000 300 1.6 1.0 13 4,200 3.7 98 3.1 52 1,100 27-30 8,900 210 1.4 .88 14 4,300 3.3 110 3.0 38 410 33-36 9,200 210 1.3 .83 14 4,200 3.1 100 3.1 40 360 36-39 9,800 220 2.2 .79 14 4,200 3.2 100 2.9 32 340 39-42 12,000 260 1.7 .85 14 4,200 3.4 90 3.0 38 470 42-45 13,000 330 1.5 1.1 12 4,200 3.7 95 3.0 49 760 48-51 15,000 380 1.1 1.1 12 4,200 4.3 88 3.1 60 770 54-57 9,800 270 1.6 1.6 13 4,200 6.8 120 4.1 92 1,500 CCR-668 Depth interval (cm) Cesium-137 (pCi/g) Aluminum Antimony Arsenic Barium Beryllium Bismuth Cadmium Calcium Carbonate (percent) Organic carbon (percent) 0-5 0.16 74,000 2.9 8.3 1,100 2.5 0.44 2.2 20,000 0.23 1.1 5-10 - 73,000 1.9 6.6 1,100 2.3 .30 1.7 22,000 .25 .86 10-15 - 73,000 4.4 8.8 1,100 2.6 .47 3.3 18,000 .25 1.8 20-25 - 73,000 6.4 11 1,200 2.5 .67 5.6 17,000 .12 1.4 30-35 .42 75,000 5.3 12 1,200 2.8 .82 11 17,000 .16 1.5 40-45 - 74,000 4.3 13 1,200 2.8 .75 11 23,000 .47 1.1 45-50 .46 68,000 5.7 17 1,400 2.5 .79 12 34,000 1.1 1.6 60-65 .23 59,000 4.1 12 1,600 2.0 .38 8.8 44,000 1.5 .72 65-70 .77 69,000 6.2 16 1,500 2.7 .81 16 33,000 1.1 1.3 80-85 .31 55,000 6.6 12 1,800 2.0 .89 11 57,000 2.1 1.2 90-95 .38 55,000 7.1 13 1,700 2.0 .88 12 54,000 2.0 1.2 100-105 .34 55,000 6.0 14 1,700 2.1 .92 11 54,000 2.0 1.3 105-110 .28 53,000 3.3 7.3 1,500 1.9 .70 6.8 52,000 1.9 .79 120-125 .54 71,000 4.8 13 1,500 2.5 .56 9.3 33,000 .89 .61 130-135 .76 70,000 9.4 20 1,500 2.4 .74 14 33,000 .96 .65 140-145 .43 44,000 9.9 12 820 1.6 .36 7.4 19,000 .67 .59 150-155 <.01 72,000 2.4 9.7 1,100 2.5 .51 4.6 25,000 .42 .38 155-160 .02 72,000 2.2 13 1,100 2.5 .47 5.1 25,000 .37 .38 160-164 .01 64,000 1.6 7.1 990 2.2 .43 4.2 24,000 .44 .32 Depth interval (cm) Cerium Cesium Chromium Cobalt Copper Gallium Iron Lanthanum Lead Lithium Magnesium 0-5 92 4.2 69 14 54 17 38,000 53 86 30 16,000 5-10 92 3.4 76 12 38 16 34,000 52 67 26 15,000 10-15 84 4.5 76 13 92 17 39,000 50 150 31 16,000 20-25 93 4.6 100 15 100 17 41,000 71 290 32 16,000 30-35 98 5.0 110 15 89 18 42,000 75 410 34 17,000 40-45 94 4.8 96 13 62 18 40,000 67 340 33 20,000 45-50 81 4.4 84 13 72 16 42,000 57 480 32 27,000 60-65 76 2.5 57 8.9 52 13 35,000 49 310 20 26,000 65-70 88 4.7 80 13 70 16 42,000 64 580 33 27,000 80-85 69 2.8 67 9.5 72 13 36,000 51 620 23 32,000 90-95 68 2.9 66 9.7 75 13 37,000 50 660 23 30,000 100-105 69 2.8 65 9.8 73 13 38,000 49 560 23 32,000 105-110 61 2.3 56 8.6 52 13 31,000 40 330 20 26,000 120-125 90 4.0 87 13 53 17 38,000 63 460 30 23,000 130-135 92 4.3 72 14 63 16 38,000 64 800 31 24,000 140-145 54 2.4 39 7.6 33 10 22,000 36 440 18 13,000 150-155 98 3.6 78 12 43 16 34,000 60 360 27 17,000 155-160 97 3.7 77 14 42 17 36,000 60 320 28 16,000 160-164 89 3.2 71 13 37 15 33,000 51 250 24 15,000 Depth interval (cm) Manganese Mercury Molybdenum Nickel Niobium Phosphorus Potassium Rubidium Scandium Selenium Silver 0-5 790 0.25 1.0 35 27 - 25,000 96 12 0.86 <3 5-10 630 .17 1.0 32 31 1,200 25,000 91 11 .62 <3 10-15 740 .47 1.5 33 30 1,200 24,000 96 12 .86 <3 20-25 740 1.2 1.6 37 35 1,600 25,000 98 13 1.3 5 30-35 660 2.1 1.8 38 30 1,600 25,000 100 13 1.8 <3 40-45 610 1.7 2.0 36 28 1,600 25,000 100 13 1.4 3 45-50 620 1.1 4.4 35 29 1,400 23,000 92 12 1.4 <3 60-65 570 .61 4.1 25 23 1,300 21,000 75 8.6 .74 <3 65-70 680 1.4 4.3 34 31 1,600 23,000 94 12 1.4 4 80-85 600 1.9 8.1 28 23 1,400 20,000 72 8.7 1.2 3 90-95 620 2.1 8.2 29 26 1,400 19,000 73 8.8 1.2 3 100-105 610 1.8 8.4 30 24 1,400 19,000 72 8.7 .94 4 105-110 550 .75 6.3 24 23 1,200 19,000 73 7.4 .62 <3 120-125 700 1.1 4.6 36 29 1,600 25,000 95 12 .97 <3 130-135 740 1.6 8.5 36 29 1,600 24,000 94 12 1.1 3 140-145 430 1.2 4.0 20 17 910 16,000 59 6.9 .52 <3 150-155 650 1.0 2.4 32 29 1,300 26,000 93 11 .69 <3 155-160 670 .92 3.6 34 28 1,400 25,000 94 12 .70 <3 160-164 650 .77 1.9 31 26 1,200 23,000 83 11 .53 3 Depth interval (cm) Sodium Strontium Tantalum Thallium Thorium Titanium Uranium Vanadium Ytterbium Yttrium Zinc 0-5 21,000 420 1.5 0.94 14 4,300 3.1 100 2.4 25 320 5-10 22,000 430 1.7 .84 12 4,100 2.3 96 2.2 23 210 10-15 20,000 380 1.6 1.1 12 4,200 3.5 100 2.7 29 530 20-25 19,000 390 2.0 1.8 13 3,800 3.7 110 3.8 50 550 30-35 20,000 400 1.7 1.4 14 4,500 3.9 110 3.5 51 900 40-45 19,000 390 1.6 1.0 14 4,400 3.5 100 3.2 42 1,000 45-50 19,000 380 1.6 1.1 12 4,000 4.0 100 3.1 36 1,200 60-65 21,000 440 1.3 .89 11 3,200 3.8 78 2.2 27 1,200 65-70 18,000 370 1.6 1.2 13 4,000 4.1 100 3.3 42 1,500 80-85 18,000 400 1.3 1.0 9.8 3,100 5.0 88 3.0 34 1,300 90-95 17,000 390 1.3 1.1 9.8 3,100 4.9 88 2.6 35 1,400 100-105 18,000 420 1.4 1.0 9.7 3,000 4.9 88 2.3 32 1,300 105-110 17,000 450 1.2 1.1 8.7 2,800 4.5 77 1.9 23 1,100 120-125 20,000 420 1.6 1.0 13 4,100 4.3 110 2.9 44 940 130-135 19,000 390 1.6 1.4 14 4,100 5.8 110 3.1 45 1,400 140-145 13,000 270 1.0 .66 7.8 2,400 2.9 64 1.8 22 700 150-155 22,000 440 1.6 .87 13 4,000 2.9 98 2.8 33 450 155-160 22,000 430 1.6 .85 13 4,400 2.8 100 3.3 35 500 160-164 20,000 400 1.4 .74 12 3,800 2.4 92 2.1 25 380 CCR-692 Depth interval (cm) Cesium-137(pCi/g) Aluminum Antimony Arsenic Barium Beryllium Bismuth Cadmium Calcium Carbonate (percent) Organic carbon (percent) 0-2 0.46 63,000 5.7 9.2 1,200 2.3 0.80 3.7 21,000 0.42 2.8 2-4 - 61,000 5.5 10 1,200 2.1 .57 3.5 28,000 .80 2.4 6-8 .21 49,000 6.1 5.6 1,400 1.8 .19 3.6 51,000 2.0 0.6 10-12 .11 59,000 10 7.2 1,400 1.9 .24 2.9 34,000 .91 0.6 14-16 .22 60,000 9.9 7.6 1,300 2.0 .27 3.0 30,000 .74 0.8 18-20 .30 62,000 12 11 1,200 2.4 .64 4.8 24,000 .44 2.6 22-24 .32 61,000 18 15 1,200 2.4 .60 5.8 22,000 .29 4.0 26-28 .88 64,000 15 17 1,200 2.2 .70 8.4 20,000 .22 2.8 30-32 - 63,000 17 18 1,200 2.4 .86 11 18,000 .20 2.8 32-34 .46 64,000 10 14 1,200 2.3 .73 12 18,000 .21 2.6 34-36 - 63,000 8.0 12 1,200 2.2 .61 10 22,000 .38 2.1 36-38 .60 60,000 6.8 9.4 1,200 2.1 .43 7.6 25,000 .42 1.6 Depth interval (cm) Cerium Cesium Chromium Cobalt Copper Gallium Iron Lanthanum Lead Lithium Magnesium 0-2 100 5.0 66 12 87 15 37,000 75 170 32 16,000 2-4 100 4.2 64 12 94 15 35,000 70 190 30 18,000 6-8 84 1.8 44 7.2 82 12 25,000 53 210 17 26,000 10-12 100 1.9 56 8.8 130 14 29,000 68 150 18 16,000 14-16 88 2.8 58 9.9 140 14 30,000 66 170 21 15,000 18-20 120 4.4 74 14 190 15 39,000 94 260 31 16,000 22-24 110 4.5 79 15 240 15 40,000 95 290 32 14,000 26-28 110 4.7 92 13 250 16 39,000 130 420 34 13,000 30-32 110 5.4 110 12 220 16 40,000 160 610 36 14,000 32-34 130 4.9 99 12 160 16 39,000 150 540 33 14,000 34-36 110 4.2 81 11 140 15 38,000 110 440 30 15,000 36-38 100 3.3 66 9.9 140 14 42,000 92 380 24 14,000 Depth interval (cm) Manganese Mercury Molybdenum Nickel Niobium Phosphorus Potassium Rubidium Scandium Selenium Silver 0-2 770 0.55 2.2 35 21 1,400 19,000 97 11 0.86 <3 2-4 700 .27 3.8 32 19 1,300 19,000 91 9.9 .93 <3 6-8 530 .19 7.6 20 16 1,200 17,000 72 6.3 .54 <3 10-12 580 .18 3.6 21 18 1,400 20,000 81 7.5 .54 <3 14-16 600 .24 3.3 23 17 1,200 20,000 86 7.8 .69 <3 18-20 770 .43 3.0 35 23 1,400 19,000 94 10 1.3 4 22-24 820 .66 2.7 34 22 1,500 18,000 92 11 1.4 5 26-28 720 1.4 3.0 36 22 1,500 20,000 94 11 1.6 4 30-32 730 2.3 2.6 38 21 1,700 19,000 100 11 2.1 8 32-34 700 2.0 2.4 38 21 1,600 20,000 98 11 2.2 <3 34-36 670 1.9 3.4 34 20 1,500 20,000 95 9.9 1.8 <3 36-38 780 1.2 4.3 26 18 1,400 20,000 88 8.5 1.3 <3 Depth interval (cm) Sodium Strontium Tantalum Thallium Thorium Titanium Uranium Vanadium Ytterbium Yttrium Zinc 0-2 17,000 440 1.4 0.89 12 4,100 4.7 87 2.8 33 630 2-4 17,000 470 1.2 .92 12 4,100 5.0 83 2.4 30 730 6-8 18,000 520 1.5 .75 9.8 4,000 4.6 58 1.7 20 970 10-12 20,000 600 1.2 .95 9.9 4,000 3.5 65 2.1 27 960 14-16 20,000 590 1.0 1.1 10 4,000 3.8 63 2.0 32 980 18-20 17,000 480 1.5 1.5 13 4,100 4.9 87 2.9 41 1,000 22-24 16,000 460 1.3 1.8 12 4,100 5.9 88 3.0 48 1,200 26-28 15,000 440 1.5 1.8 12 4,200 5.2 93 4.0 78 1,200 30-32 15,000 420 1.4 1.5 13 4,100 5.5 100 4.4 100 1,300 32-34 16,000 450 1.3 1.5 13 4,100 5.1 89 3.8 78 1,300 34-36 18,000 500 1.3 1.2 13 4,100 4.9 84 3.0 56 1,400 36-38 19,000 520 1.2 .86 27 4,100 6.8 80 2.6 43 2,200 CCR-705 Depth interval (cm) Cesium-137(pCi/g) Aluminum Antimony Arsenic Barium Beryllium Bismuth Cadmium Calcium Carbonate (percent) Organic carbon (percent) 0-2 - 81,000 5.6 9.8 1,200 2.6 0.72 5.2 18,000 0.13 1.7 2-4 0.55 81,000 6.7 11 1,200 2.4 .70 6.5 18,000 .14 1.5 6-8 .72 81,000 6.1 13 1,400 2.5 .73 11 23,000 .37 1.2 14-16 .92 77,000 9.6 16 1,700 2.6 .80 15 33,000 .96 1.1 18-20 1.2 72,000 11 20 1,800 2.3 .82 18 40,000 1.4 .91 22-24 .04 84,000 5.2 11 1,400 2.6 .54 7.3 36,000 .87 .72 26-28 .03 75,000 1.9 5.4 1,100 2.2 .30 2.8 31,000 .70 .68 30-32 <.01 40,000 .98 2.1 580 1.3 .19 1.4 16,000 .68 .63 34-36 .16 59,000 1.1 3.6 870 1.9 .19 1.5 23,000 .54 .69 36-38 .19 77,000 1.7 4.4 1,100 2.3 .26 1.6 26,000 .40 .72 40-42 <.01 76,000 6.1 18 1,100 2.6 1.3 16 23,000 .47 2.3 42-44 .02 54,000 3.5 15 760 1.8 .88 10 14,000 .20 4.9 44-46 <.01 55,000 1.5 6.7 750 1.7 .30 2.7 13,000 .02 6.8 46-49 - 57,000 1.7 6.5 780 1.7 .41 4.2 15,000 .08 6.3 RSS-743 - 27,000 160 28 2,800 1.1 <0.005 0.004 99,000 - - Depth interval (cm) Cerium Cesium Chromium Cobalt Copper Gallium Iron Lanthanum Lead Lithium Magnesium 0-2 93 5.1 94.1 14 91 18 44,000 60 260 32 16,000 2-4 96 4.9 106 14 100 18 44,000 68 350 33 16,000 6-8 93 4.6 108 14 79 18 43,000 69 500 31 18,000 14-16 90 4.6 100 13 68 17 43,000 67 680 32 25,000 18-20 86 4.2 92.6 12 67 16 42,000 64 850 30 27,000 22-24 93 4.4 91.5 14 59 19 43,000 57 450 35 21000 26-28 90 3.8 79.6 13 37 18 37,000 51 200 31 17,000 30-32 48 2.0 41.3 6.3 18 9.2 19,000 29 85 17 9,200 34-36 72 2.5 54.7 8.2 29 13 25,000 42 86 21 12,000 36-38 77 3.2 65.3 11 26 16 30,000 45 90 25 13,000 40-42 86 4.8 89.7 12 74 18 34,000 65 850 34 19,800 42-44 75 4.5 56.2 9.8 52 12 22,000 61 500 28 11,000 44-46 47 3.6 49.1 6.5 32 12 20,000 30 61 22 7,500 46-49 56 3.7 53.9 6.7 37 13 22,000 35 130 22 8,700 RSS-743 47 0.78 250 88 3,600 35 320,000 25 400 18 8,300 Depth interval (cm) Manganese Mercury Molybdenum Nickel Niobium Phosphorus Potassium Rubidium Scandium Selenium Silver 0-2 1,000 0.93 1.6 37 36.1 1,600 27,000 110 13 1.1 5 2-4 860 1.2 1.6 37 35.9 1,700 27,000 100 13 1.2 4 6-8 700 2.2 2.8 37 34.9 1,800 28,000 100 13 1.5 <3 14-16 720 2.0 7.3 36 33.2 2,100 26,000 100 13 1.4 7 18-20 750 1.8 9.1 36 31.4 2,100 25,000 95 12 1.4 3 22-24 750 .88 4.0 39 36.7 1,400 29,000 110 14 .54 <3 26-28 690 .47 1.7 34 33.7 1,200 27,000 99 12 .55 <3 30-32 380 .46 .71 18 16.0 650 14,000 50 6.3 .38 <3 34-36 540 .29 .86 22 24.8 970 21,000 72 8.8 .34 <3 36-38 570 .23 1.3 28 29.0 1,100 28,000 90 11 .41 <3 40-42 530 2.8 7.0 35 32.7 1,600 26,000 110 13 1.4 <3 42-44 380 1.5 5.9 28 19.81 1,200 17,000 91 9.0 1.9 <3 44-46 310 .14 2.2 19 19.2 1,100 18,000 79 8.6 2.4 <3 46-49 350 .38 2.4 21 21.1 1,200 18,000 82 9.1 2.2 <3 RSS-743 5,400 - 54 26 5.0 570 4,800 20 6.2 - 9 Depth interval (cm) Sodium Strontium Tantalum Thallium Thorium Titanium Uranium Vanadium Ytterbium Yttrium Zinc 0-2 18,000 430 1.9 1.3 14 4,200 3.6 110 2.9 35 560 2-4 19,000 440 1.8 1.4 14 4,100 3.7 110 3.2 46 640 6-8 19,000 450 2.6 1.4 13 4,200 3.8 110 3.1 47 960 14-16 18,000 420 2.0 1.4 13 4,100 5.5 120 3.2 48 1,400 18-20 16,000 400 2.0 1.5 12 3,800 6.5 110 3.2 48 1,600 22-24 20,000 500 2.1 1.0 14 4,400 3.4 120 2.6 32 740 26-28 19,000 480 1.9 .71 13 4,100 2.5 98 2.2 24 300 30-32 11,000 260 1.0 .38 7.4 2,100 1.4 51 1.2 13 150 34-36 18,000 420 1.3 .50 10 3,100 1.9 69 1.7 18 160 36-38 22,000 530 1.5 .74 11 3,800 2.3 90 2.2 22 170 40-42 17,000 400 1.8 1.3 13 4,000 6.0 110 3.2 49 1,200 42-44 12,000 310 1.3 .81 11 4,000 9.5 72 2.6 36 770 44-46 12,000 310 1.1 .62 8.6 2,500 13 62 1.9 19 180 46-49 12,000 310 1.2 .69 9.4 2,700 14 67 2.3 21 300 RSS-743 2,900 430 - 0.02 7.3 3,600 6.2 50 - 23 25,000 CSA-8 Depth interval (cm) Cesium-137(pCi/g) Aluminum Antimony Arsenic Barium Beryllium Bismuth Cadmium Calcium Carbonate (percent) Organic carbon (percent) 0-3 0.17 84,000 2.6 20 770 2.8 1.1 7.0 9,800 0.06 2.4 3-6 - 78,000 1.9 18 730 2.6 1.1 5.7 12,000 .11 1.9 6-9 - 85,000 2.6 20 760 2.7 1.1 7.8 9,200 .04 2.4 9-12 .32 76,000 8.0 24 790 2.4 .81 10 8,900 .04 2.4 15-18 .25 81,000 2.4 20 710 2.7 1.2 14 11,000 .05 1.9 21-24 .29 74,000 2.3 19 700 2.6 .94 13 13,000 .07 1.6 27-30 .36 74,000 2.8 17 700 2.5 .95 21 12,000 .05 1.8 33-36 .33 74,000 3.0 13 700 2.5 1.2 18 13,000 .05 1.7 39-42 .2 70,000 2.0 11 660 2.2 .96 8.0 15,000 .09 1.3 45-48 .24 70,000 2.1 13 660 2.2 1.9 8.0 15,000 .09 1.4 51-54 .24 71,000 2.1 12 680 2.2 1.2 7.6 15,000 .09 1.5 57-60 .33 72,000 2.4 13 690 2.5 1.5 14 13,000 .06 1.7 63-66 1.1 83,000 5.7 34 740 2.7 1.3 14 10,200 .03 2.2 69-72 .36 73,000 3.2 20 740 2.4 2.0 7.0 11,000 .03 1.2 75-78 .34 72,000 2.7 16 710 2.3 2.2 18 12,000 .06 1.6 78-81 - 74,000 2.2 10 650 2.1 .84 9.5 15,000 .07 1.5 81-84 .31 72,000 2.2 12 690 2.6 1.8 8.8 15,000 .07 1.5 86-90 - 78,000 2.8 13 700 2.3 1.4 10 14,000 .06 1.7 Depth interval (cm) Cerium Cesium Chromium Cobalt Copper Gallium Iron Lanthanum Lead Lithium Magnesium 0-3 82 9.2 64 17 44 20 50,000 41 140 45 13,000 3-6 77 7.8 55 15 40 19 43,000 40 88 39 13,000 6-9 77 8.8 63 16 48 21 50,000 41 140 45 12,000 9-12 69 8.0 64 16 53 20 45,000 36 130 42 12,000 15-18 76 7.5 58 16 46 20 42,000 40 110 40 12,000 21-24 76 6.6 49 13 34 18 37,000 40 92 34 12,000 27-30 75 6.7 51 14 38 18 39,000 40 110 35 12,000 33-36 80 6.7 51 14 34 18 38,000 42 100 34 12,000 39-42 76 5.8 42 12 29 16 34,000 40 72 30 11,000 45-48 82 6.0 46 12 31 16 35,000 43 74 30 11,000 51-54 82 6.2 35 12 31 16 35,000 43 69 32 11,000 57-60 74 6.4 48 13 36 17 36,000 39 86 34 11,000 63-66 80 7.7 60 18 51 20 46,000 43 140 41 11,000 69-72 80 7.0 50 13 38 17 37,000 43 210 34 11,000 75-78 81 6.5 51 14 36 18 38,000 43 100 34 12,000 78-81 75 6.1 54 13 31 17 36,000 38 87 32 9,700 81-84 78 6.4 48 12 32 17 36,000 41 79 33 12,000 86-90 73 6.6 49 13 36 18 38,000 38 83 33 12,000 Depth interval (cm) Manganese Mercury Molybdenum Nickel Niobium Phosphorus Potassium Rubidium Scandium Selenium Silver 0-3 1,600 0.10 0.75 28 23 1,300 22,000 120 17 0.65 <3 3-6 930 .08 .65 25 18 1,000 22,000 110 16 .39 <3 6-9 1,200 .11 .80 30 23 1,400 22,000 120 18 .82 <3 9-12 940 .25 1.2 29 22 1,300 20,000 110 16 .69 <3 15-18 860 .15 .86 26 21 1,100 21,000 110 15 .74 <3 21-24 750 .15 .65 21 20 990 21,000 100 14 .46 <3 27-30 840 .19 .66 23 19 1,200 21,000 100 14 .68 <3 33-36 790 .18 .56 22 20 1,200 21,000 100 14 .38 <3 39-42 670 .09 .55 18 19 980 21,000 94 13 .40 <3 45-48 680 .09 .61 19 18 1,000 21,000 94 13 .40 <3 51-54 640 .09 .71 19 19 970 21,000 96 13 .64 <3 57-60 720 .14 .55 21 16 1,000 20,000 99 13 .49 <3 63-66 980 .30 .86 28 20 1,300 21,000 120 17 .52 <3 69-72 680 .13 .65 20 20 890 24,000 120 13 .42 <3 75-78 820 .19 .64 22 18 1,200 22,000 100 14 .42 <3 78-81 730 .10 .79 21 15 1,100 22,000 100 14 .46 <3 81-84 690 .10 .65 20 15 1,000 21,000 99 13 .32 <3 86-90 730 .13 .82 22 22 1,000 22,000 120 17 .65 <3 Depth interval (cm) Sodium Strontium Tantalum Thallium Thorium Titanium Uranium Vanadium Ytterbium Yttrium Zinc 0-3 8,700 140 1.7 0.88 14 5,400 6.4 100 3.8 32 1,200 3-6 11,000 170 1.1 .76 13 5,300 5.7 98 3.4 29 950 6-9 8,600 140 1.8 .89 13 5,400 6.0 110 3.6 32 1,200 9-12 8,300 130 1.8 .81 12 4,900 6.4 97 3.1 28 1,600 15-18 12,000 170 1.5 1.0 12 5,200 5.6 95 3.4 31 1,500 21-24 15,000 210 1.3 .84 11 5,100 4.4 86 3.6 28 1,200 27-30 14,000 200 .96 .92 11 5,100 4.1 89 3.1 28 1,600 33-36 15,000 210 1.3 .83 12 5,300 4.0 88 3.2 28 1,400 39-42 16,000 240 1.5 .67 11 5,300 3.6 85 3.1 26 930 45-48 16,000 230 1.2 .64 12 5,200 3.5 86 3.0 26 960 51-54 15,000 230 1.4 .66 12 5,200 3.4 84 3.0 26 890 57-60 14,000 210 1.0 .73 11 5,100 3.6 85 3.1 26 1,300 63-66 9,700 160 1.6 1.0 13 5,500 4.8 98 3.7 34 1,500 69-72 12,000 210 1.4 .76 12 4,600 3.3 85 2.9 26 980 75-78 14,000 200 1.0 .86 12 5,000 4.1 88 3.2 27 1,400 78-81 12,000 220 .61 .66 11 4,300 3.2 89 2.6 25 1,100 81-84 16,000 230 1.0 .73 12 5,200 3.6 86 3.2 27 1,000 86-90 15,000 220 1.5 .73 11 5,200 3.3 88 3.0 27 1,100 For more information about USGS activities in Washington, visit the USGS Washington District home page .