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publications > open file report > OFR-00-327 > table 12
Regional Geochemistry of Metals in Organic-Rich Sediments, Sawgrass and Surface Water, from Taylor Slough, Florida
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| Table 12. Element accumulation rates (EAR) calculated for selected minor (trace) elements in organic-rich sediment core material. Data valid to two significant figures.
[--, no data; core name and location keyed to fig. 2] |
| Depth, cm |
Bulk Density
g/cm3 |
Sedimenta-
tion Rate
cm/yr; |
Sediment Accumulation Rate (SAR)
g/cm2/yr |
Chromium |
Copper |
Nickel |
Concentra-
tion
ug/g |
EAR
µg/cm2/yr |
EAR
µg/m2/yr |
Concentra-
tion
ug/g |
EAR
µg/cm2/yr |
EAR
µg/m2/yr |
Concentra-
tion
ug/g |
EAR
µg/cm2/yr |
EAR
µg/m2/yr |
| Core TS1 |
| 2.5 |
0.12 |
1.31 |
0.16 |
39 |
6.1 |
61308 |
14 |
2.20 |
22008 |
13.0 |
2.04 |
20436 |
| 7.5 |
0.19 |
1.01 |
0.19 |
82 |
15.7 |
157358 |
12 |
2.30 |
23028 |
24.0 |
4.61 |
46056 |
| 12.5 |
0.26 |
0.84 |
0.22 |
10 |
2.2 |
21840 |
17 |
3.71 |
37128 |
7.0 |
1.53 |
15288 |
| 17.5 |
0.26 |
0.78 |
0.20 |
117 |
23.7 |
237276 |
10 |
2.03 |
20280 |
31.0 |
6.29 |
62868 |
| 25.0 |
0.28 |
0.75 |
0.21 |
138 |
29.0 |
289800 |
9 |
1.89 |
18900 |
36.0 |
7.56 |
75600 |
|
| Core TS7 |
| 2.5 |
0.13 |
0.1 |
0.013 |
6 |
0.08 |
762 |
7.0 |
0.09 |
889 |
3.0 |
0.04 |
381 |
| 7.5 |
0.26 |
0.1 |
0.026 |
3 |
0.08 |
786 |
1.4 |
0.04 |
367 |
2.1 |
0.06 |
550 |
| 12.5 |
0.31 |
0.1 |
0.031 |
101 |
3.17 |
31714 |
10.0 |
0.31 |
3140 |
29.0 |
0.91 |
9106 |
| 17.5 |
0.12 |
0.1 |
0.012 |
10 |
0.12 |
1150 |
5.0 |
0.06 |
575 |
5.0 |
0.06 |
575 |
| 25.0 |
0.10 |
0.1 |
0.010 |
9 |
0.09 |
936 |
6.0 |
0.06 |
624 |
6.0 |
0.06 |
624 |
| 35.0 |
0.11 |
0.1 |
0.011 |
10 |
0.11 |
1090 |
5.0 |
0.05 |
545 |
6.0 |
0.07 |
654 |
| 45.0 |
0.12 |
0.1 |
0.012 |
14 |
0.17 |
1652 |
5.0 |
0.06 |
590 |
7.0 |
0.08 |
826 |
| 55.0 |
0.13 |
0.1 |
0.013 |
11 |
0.14 |
1441 |
20.0 |
0.26 |
2620 |
5.0 |
0.07 |
655 |
| 65.0 |
0.11 |
0.1 |
0.011 |
8 |
0.09 |
904 |
13.0 |
0.15 |
1469 |
4.0 |
0.05 |
452 |
|
| Core TS7E |
| 2.5 |
0.25 |
0.145 |
0.036 |
5 |
0.18 |
1798 |
7.0 |
0.25 |
2517 |
2.1 |
0.08 |
755 |
| 7.5 |
0.28 |
0.145 |
0.041 |
4 |
0.16 |
1630 |
3.0 |
0.12 |
1222 |
2.1 |
0.09 |
856 |
| 12.5 |
0.32 |
0.145 |
0.046 |
5 |
0.23 |
2291 |
1.4 |
0.06 |
641 |
4.0 |
0.18 |
1833 |
| 17.5 |
0.33 |
0.145 |
0.048 |
14 |
0.67 |
6658 |
8.0 |
0.38 |
3805 |
7.0 |
0.33 |
3329 |
| 22.5 |
0.22 |
0.145 |
0.031 |
13 |
0.41 |
4090 |
6.0 |
0.19 |
1888 |
8.0 |
0.25 |
2517 |
| 27.5 |
0.18 |
0.145 |
0.026 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| 32.5 |
0.10 |
0.145 |
0.015 |
13 |
0.19 |
1885 |
7.0 |
0.10 |
1015 |
9.0 |
0.13 |
1305 |
| 37.5 |
0.10 |
0.145 |
0.015 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| 42.5 |
0.10 |
0.145 |
0.015 |
16 |
0.23 |
2320 |
7.0 |
0.10 |
1015 |
8.0 |
0.12 |
1160 |
| 50.0 |
0.10 |
0.145 |
0.015 |
18 |
0.26 |
2610 |
14.0 |
0.20 |
2030 |
7.0 |
0.10 |
1015 |
| 60.0 |
0.10 |
0.145 |
0.015 |
17 |
0.25 |
2465 |
7.0 |
0.10 |
1015 |
5.0 |
0.07 |
725 |
| 66.5 |
0.10 |
0.145 |
0.015 |
30 |
0.44 |
4350 |
7.0 |
0.10 |
1015 |
5.0 |
0.07 |
725 |
| Note: This is a continuation of table above. |
| Depth, cm |
Mercury |
Lead |
Zinc |
Concentra-
tion
ug/g |
EAR
µg/cm2/yr |
EAR
µg/m2/yr |
Concentra-
tion
ug/g |
EAR
µg/cm2/yr |
EAR
µg/m2/yr |
Concentra-
tion
ug/g |
EAR
µg/cm2/yr |
EAR
µg/m2/yr |
| Core TS1 |
| 2.5 |
0.17 |
0.0267 |
267 |
28.0 |
4.40 |
44016 |
27 |
4.24 |
42444 |
| 7.5 |
0.14 |
0.0269 |
269 |
25.0 |
4.80 |
47975 |
14 |
2.69 |
26866 |
| 12.5 |
0.09 |
0.0197 |
197 |
45.0 |
9.83 |
98280 |
44 |
9.61 |
96096 |
| 17.5 |
0.16 |
0.0324 |
324 |
27.0 |
5.48 |
54756 |
17 |
3.45 |
34476 |
| 25.0 |
0.14 |
0.0294 |
294 |
30.0 |
6.30 |
63000 |
18 |
3.78 |
37800 |
|
| Core TS7 |
| 2.5 |
0.10 |
0.0013 |
12.7 |
25.0 |
0.32 |
3175 |
25 |
0.3175 |
3175 |
| 7.5 |
0.04 |
0.0010 |
10.5 |
2.8 |
0.07 |
734 |
7 |
0.1834 |
1834 |
| 12.5 |
0.20 |
0.0063 |
62.8 |
22.0 |
0.69 |
6908 |
17 |
0.5338 |
5338 |
| 17.5 |
0.09 |
0.0010 |
10.4 |
6.0 |
0.07 |
690 |
10 |
0.1150 |
1150 |
| 25.0 |
0.07 |
0.0007 |
7.3 |
6.0 |
0.06 |
624 |
12 |
0.1248 |
1248 |
| 35.0 |
0.08 |
0.0009 |
8.7 |
8.0 |
0.09 |
872 |
12 |
0.1308 |
1308 |
| 45.0 |
0.06 |
0.0007 |
7.1 |
7.0 |
0.08 |
826 |
11 |
0.1298 |
1298 |
| 55.0 |
0.07 |
0.0009 |
9.2 |
51.0 |
0.67 |
6681 |
54 |
0.7074 |
7074 |
| 65.0 |
0.06 |
0.0007 |
6.8 |
7.0 |
0.08 |
791 |
25 |
0.2825 |
2825 |
|
| Core TS7E |
| 2.5 |
0.07 |
0.0025 |
25.2 |
30.0 |
1.08 |
10788 |
31 |
1.1148 |
11148 |
| 7.5 |
0.09 |
0.0037 |
36.7 |
12.0 |
0.49 |
4889 |
14 |
0.5704 |
5704 |
| 12.5 |
0.05 |
0.0023 |
22.9 |
2.8 |
0.13 |
1283 |
11 |
0.5040 |
5040 |
| 17.5 |
0.13 |
0.0062 |
61.8 |
5.0 |
0.24 |
2378 |
14 |
0.6658 |
6658 |
| 22.5 |
0.13 |
0.0041 |
40.9 |
2.8 |
0.09 |
881 |
20 |
0.6293 |
6293 |
| 27.5 |
0.23 |
0.0060 |
60.0 |
-- |
-- |
-- |
-- |
-- |
-- |
| 32.5 |
0.22 |
0.0032 |
31.9 |
5.0 |
0.07 |
725 |
8 |
0.1160 |
1160 |
| 37.5 |
0.13 |
0.0019 |
18.9 |
-- |
-- |
-- |
-- |
-- |
-- |
| 42.5 |
0.13 |
0.0019 |
18.9 |
4.0 |
0.06 |
580 |
18 |
0.2610 |
2610 |
| 50.0 |
0.13 |
0.0019 |
18.9 |
12.0 |
0.17 |
1740 |
15 |
0.2175 |
2175 |
| 60.0 |
0.13 |
0.0019 |
18.9 |
6.0 |
0.09 |
870 |
7 |
0.1015 |
1015 |
| 66.5 |
0.23 |
0.0033 |
33.4 |
6.0 |
0.09 |
870 |
8 |
0.1160 |
1160 |
| Depth, cm |
Bulk Density
g/cm3 |
Sedimenta-
tion Rate
cm/yr; |
Sediment Accumulation Rate (SAR)
g/cm2/yr |
Chromium |
Copper |
Nickel |
Concentra-
tion
ug/g |
EAR
µg/cm2/yr |
EAR
µg/m2/yr |
Concentra-
tion
ug/g |
EAR
µg/cm2/yr |
EAR
µg/m2/yr |
Concentra-
tion
ug/g |
EAR
µg/cm2/yr |
EAR
µg/m2/yr |
| Core TS9 |
| 2.5 |
0.31 |
0.14 |
0.043 |
5 |
0.22 |
2170 |
1.4 |
0.06 |
608 |
2.1 |
0.09 |
911 |
| 7.5 |
0.35 |
0.14 |
0.049 |
5 |
0.25 |
2450 |
5.0 |
0.25 |
2450 |
2.1 |
0.10 |
1029 |
| 12.5 |
0.36 |
0.14 |
0.050 |
6 |
0.30 |
3024 |
1.4 |
0.07 |
706 |
2.1 |
0.11 |
1058 |
| 17.5 |
0.40 |
0.14 |
0.056 |
2 |
0.11 |
1120 |
1.4 |
0.08 |
784 |
2.1 |
0.12 |
1176 |
| 22.5 |
0.42 |
0.14 |
0.059 |
5 |
0.29 |
2940 |
1.4 |
0.08 |
823 |
2.1 |
0.12 |
1235 |
| 27.5 |
0.45 |
0.14 |
0.063 |
6 |
0.38 |
3780 |
1.4 |
0.09 |
882 |
2.1 |
0.13 |
1323 |
| 32.5 |
0.43 |
0.14 |
0.060 |
46 |
2.77 |
27692 |
7.0 |
0.42 |
4214 |
13.0 |
0.78 |
7826 |
| 37.5 |
0.42 |
0.14 |
0.059 |
132 |
7.76 |
77616 |
6.0 |
0.35 |
3528 |
35.0 |
2.06 |
20580 |
| 45.0 |
0.18 |
0.14 |
0.025 |
103 |
2.60 |
25956 |
3.0 |
0.08 |
756 |
26.0 |
0.66 |
6552 |
| 55.0 |
0.14 |
0.14 |
0.020 |
164 |
3.21 |
32144 |
1.4 |
0.03 |
274 |
39.0 |
0.76 |
7644 |
| 62.5 |
0.19 |
0.14 |
0.027 |
193 |
5.13 |
51338 |
2.0 |
0.05 |
532 |
47.0 |
1.25 |
12502 |
|
| Core TS15 |
| 2.5 |
0.09 |
0.08 |
0.007 |
8 |
0.06 |
589 |
14.0 |
0.10 |
1030 |
3.0 |
0.02 |
221 |
| 7.5 |
0.09 |
0.08 |
0.007 |
9 |
0.06 |
612 |
11.0 |
0.07 |
748 |
4.0 |
0.03 |
272 |
| 12.5 |
0.10 |
0.08 |
0.008 |
4 |
0.03 |
317 |
6.0 |
0.05 |
475 |
2.1 |
0.02 |
166 |
| 17.5 |
0.09 |
0.08 |
0.007 |
4 |
0.03 |
298 |
5.0 |
0.04 |
372 |
2.1 |
0.02 |
156 |
| 22.5 |
0.09 |
0.08 |
0.007 |
4 |
0.03 |
298 |
3.0 |
0.02 |
223 |
2.1 |
0.02 |
156 |
| 27.5 |
0.09 |
0.08 |
0.007 |
7 |
0.05 |
521 |
4.0 |
0.03 |
298 |
2.1 |
0.02 |
156 |
| 32.5 |
0.09 |
0.08 |
0.007 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| 37.5 |
0.09 |
0.08 |
0.007 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| 45.0 |
0.10 |
0.08 |
0.008 |
25 |
0.20 |
2000 |
34.0 |
0.27 |
2720 |
6.0 |
0.05 |
480 |
| 55.0 |
0.12 |
0.08 |
0.010 |
40 |
0.38 |
3840 |
90.0 |
0.86 |
8640 |
9.0 |
0.09 |
864 |
| 61.5 |
0.13 |
0.08 |
0.010 |
31 |
0.32 |
3174 |
7.0 |
0.07 |
717 |
8.0 |
0.08 |
819 |
| Note: This is a continuation of table above. |
| Depth, cm |
Mercury |
Lead |
Zinc |
Concentra-
tion
ug/g | |