|
Hole, core, section,
interval (cm) |
Depth
(mcd) |
CBD extraction*
|
AR extraction
|
HNO3-HF
|
||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Fe
(wt%) |
 56Fe(  )
|
2
 †
|
Fe
(wt%) |
Percent
digested |
56Fe ( )
|
2
|
Fe
(wt%) |
Percent
digested |
||
|
207- |
||||||||||
| 1260A-44R-1, 93–94 | 407.75 | 0.05 | — |
|
0.30 | 29 | –0.18 | 0.10 | 0.69 | 73 |
| 1260A-44R-4, 32.5–33.5 | 410.95 | 0.09 | — |
|
0.24 | 46 | –0.20 | 0.14 | 0.56 | 78 |
| 1260A-45R-3, 27–28 | 414.59 | 0.02 | — |
|
0.31 | 21 | –0.21 | 0.01 | 0.97 | 80 |
| 1260A-46R-2, 31–32 | 418.93 | 0.01 | 0.74 | 0.08 | 0.48 | 9 | 0.02 | 0.09 | 1.31 | 87 |
| 1260A-46R-5, 53–54 | 423.24 | 0.01 | 0.63 | 0.04 | 0.43 | 23 | –0.47 | 0.06 | 0.10 | 86 |
| 1260B-35R-6, 21–22 | 427.50 | 0.16 | — |
|
0.33 | 40 | –0.14 | 0.18 | 0.78 | 83 |
| 1260A-47R-3, 33–34 | 430.82 | 0.72‡ | — |
|
0.21 | 31 | –0.29 | 0.05 | 0.84 | 84 |
| 1260A-47R-6, 50–51 | 435.42 | 0.14 | — |
|
0.41 | 33 | –0.01 | 0.11 | 1.17 | 82 |
| 1260B-37R-6, 62–63 | 445.04 | 0.61‡ | — |
|
0.34 | 39 | –0.43 | 0.11 | 1.16 | 79 |
| 1260B-38R-6, 34–35 | 455.87 | 0.08 | — |
|
0.37 | 44 | –0.77 | 0.05 | 0.79 | 85 |
Notes: * = amount of sample digested with Na citrate-Na bicarbonate-dithionite (CBD) method is negligible. † = errors are expressed as two standard deviations around the mean for at least two independent measurements. ‡ = anomalously high values due to contaminated resin. AR = aqua regia. HF = hydrofluoric acid. — = not measured.