Table 2.
Summary of the transition metal abundances (nickel and molybdenum) and molybdenum and sulfur isotope data for bornite, carrollite, and pyrite at Ruby Creek-Bornite, Southern Brooks Range, AK
| Sample | Mineral | Petrographic texture | Sample weight | Ni | Mo | δ34S V-CDT | δ98/95Mo V-NISTSRM3134 (Batch #1) |
|---|---|---|---|---|---|---|---|
| (g) | (μg g−1) | (μg g−1) | (‰ ± 2 standard error) | (‰) | |||
| ASK-02a | Pyrite | Cement of ferroan dolomite | 0.03714 | 138 | 8.1 | − 2.7 ± 0.3 (n = 2) | + 2.22 |
| ASK-02b | Pyrite | 0.07538 | 190 | 10.1 | + 2.13 | ||
| ASK-06_CAR_a | Carrollite | Cementing solid bitumen and fragments of dolomitized carbonaceous limestone | 0.07432 | 34,077 | 61.1 | − 1.8 ± 0.4 (n = 6) | + 3.78 |
| ASK-06_CAR_b | Carrollite | 0.05320 | 69,063 | 36.9 | + 3.86 | ||
| ASK-01 | Bornite | Replacing coarse-grained pyrite and associated with solid bitumen | 0.02899 | 1.3 | 13.9 | − 28.5 ± 0.4 (n = 3) | + 2.44 |
| ASK-03 | Bornite | Cementing solid bitumen and fragments of dolomitized carbonaceous limestone | 0.02114 | 13.5 | 28.9 | − 3.3 ± 0.2 (n = 3) | + 5.48 |
| ASK-04 | Bornite | Associated with white hydrothermal dolomite and cementing clasts of dolomite matrix | 0.02856 | 1.3 | 15.6 | − 2.8 ± 0.5 (n = 6) | + 2.75 |
| ASK-05 | Bornite | Associated with white hydrothermal dolomite | 0.06387 | 0.14 | 3.3 | − 7.8 ± 0.3 (n = 2) | + 2.21 |
| ASK-06_Bn | Bornite | Cementing solid bitumen and fragments of carbonaceous limestone | 0.03934 | 123 | 21.3 | − 3.6 ± 0.3 (n = 2) | + 3.53 |