publications > open file report > OFR 2004-1448 > appendixes > Appendix D
Average Sediment Accumulation Rate (2-7cm) = 0.60 cm/yr
Appendix D. Lead-210 for 00-8-10-14.
Core Location: 00-8-10-14
Core ID
Depth (cm)
Mean Depth (cm)
Total Pb-210 Activity (dpm/g)
Total Pb-210 Activity Error (+/-)
Cs-137 Activity (dpm/g)
Cs-137 Activity +/- (dpm/g)
Ra-226 Activity (dpm/g)
Ra-226 Activity +/- (dpm/g)
K-40 Activity (dpm/g)
K-40 Activity +/- (dpm/g)
Excess Pb-210 Activity (dpm/g)
Ln Excess Pb-210 Activity (dpm/g)
‡‡Calc. Ln Excess Pb-210 Activity (dpm/g)
‡‡Calc. Excess Pb-210 Activity (dpm/g)
†Calc. Excess Pb-210 Activity (dpm/g)
00-08-10-14
0-1
0.5
21.51
0.304
--
--
--
--
--
--
20.83
3.04
--
--
--
00-08-10-14
1-2
1.5
27.57
0.493
--
--
--
--
--
--
26.89
3.29
3.28
26.67
--
00-08-10-14
2-3
2.5
25.42
0.447
--
--
--
--
--
--
24.74
3.21
3.23
25.30
--
00-08-10-14
3-4
3.5
25.97
0.426
--
--
--
--
--
--
25.29
3.23
3.18
24.00
--
00-08-10-14
4-5
4.5
23.05
0.319
--
--
--
--
--
--
22.37
3.11
3.13
22.77
--
00-08-10-14
6-7
6.5
19.42
1.748
6.11
0.16
0.78
0.12
3.30
0.55
18.64
2.93
3.02
20.49
--
00-08-10-14
7-8
7.5
21.74
0.747
6.87
0.15
0.82
0.11
2.90
0.46
20.93
3.04
2.97
19.44
22.75
00-08-10-14
8-9
8.5
19.05
1.032
7.98
0.18
0.85
0.12
2.65
0.53
18.20
2.90
--
--
17.73
00-08-10-14
9-10
9.5
16.22
0.567
8.15
0.19
0.82
0.13
3.17
0.55
15.39
2.73
--
--
13.82
00-08-10-14
10-11
10.5
14.27
0.247
--
--
--
--
--
--
13.59
2.61
--
--
10.77
00-08-10-14
11-12
11.5
9.96
0.363
6.98
0.18
0.85
0.15
4.44
0.70
9.11
2.21
--
--
8.39
00-08-10-14
12-13
12.5
6.23
0.321
5.00
0.15
0.79
0.12
2.50
0.51
5.45
1.69
--
--
6.54
00-08-10-14
13-14
13.5
4.34
0.180
3.19
0.11
0.50
0.10
2.08
0.42
3.84
1.34
--
--
5.10
00-08-10-14
14-15A
14.5
3.95
0.098
2.50
0.11
0.47
0.10
2.04
0.49
3.48
1.25
--
--
3.97
00-08-10-14
14-15B
14.5
3.89
0.109
--
--
--
--
--
--
3.43
1.23
--
--
3.97
00-08-10-14
15-16
15.5
2.69
0.168
2.21
0.11
0.59
0.12
2.06
0.50
2.09
0.74
--
--
3.10
00-08-10-14
16-17
16.5
1.97
0.115
2.93
0.10
0.75
0.11
2.25
0.46
1.22
0.20
--
--
2.41
00-08-10-14
17-18
17.5
1.79
0.083
2.76
0.10
0.54
0.10
2.43
0.44
1.25
0.22
--
--
1.88
00-08-10-14
18-19
18.5
1.82
0.072
2.20
0.09
0.55
0.10
2.00
0.40
1.27
0.24
--
--
1.47
00-08-10-14
19-20
19.5
1.86
0.096
1.59
0.08
0.58
0.09
2.08
0.43
1.28
0.25
--
--
1.14
ND = Not detected
Linear best fit of Ln excess Pb-210 activity (2-7cm).
‡‡Calc. Ln Excess = (-0.05272 * z) + 3.3626 r2 = 0.90
U.S. Department of the Interior, U.S. Geological Survey
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Last updated: 31 March, 2005 @ 11:03 AM (KP)