Table 1. Physical, chemical and mineralogical data, and sequencing statistics.
| Sample Name | Sitea | Date (m-y) | Temp. (°C)b | pH | Predominant mineralsc | Oxygen (μM) | NH4+ (μM) | NO2− (μM) | NO3− (μM) | N (initial)d | N (final)e |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0706W | W | Jun-07 | 80 | 7.40 | n/a | n/a | 71 | 1.90 | 14.0 | 15 003 | 9781 |
| 0812W | W | Dec-08 | 80 | 7.20 | n/a | 28 | 70 | 0.79 | 1.7 | 35 116 | 17 624 |
| 0906W | W | Jun-09 | 82 | 6.85 | n/a | 31 | 93 | 1.04 | 8.8 | 12 266 | 8046 |
| 1002W | W | Feb-10 | 82 | 6.63 | n/a | 19 | 69 | (bd) | 7.2 | 21 841 | 13 891 |
| 0812A | A | Dec-08 | 80 | 7.20 | Al, Am, Mu, Q | 28 | 70 | 0.79 | 1.7 | 57 106 | 37 890 |
| 0906A | A | Jun-09 | 82 | 6.85 | As, Mu,Q | 31 | 93 | 1.04 | 8.8 | 10 511 | 5 706 |
| 1002A | A | Feb-10 | 82 | 6.63 | An, L, Mu, Q | 25 | 69 | (bd) | 7.2 | 27 235 | 17 944 |
| 1007A | A | Jul-10 | 87 | n/a | Mu, Q | n/a | n/a | n/a | n/a | 26 687 | 6689 |
| 1002B | B | Feb-10 | 79 | 6.81 | Mu, Q | 25 | 25 | (bd) | 3.0 | 30 813 | 20 720 |
| 1002C | C | Feb-10 | 72 | 7.05 | Mi, Mu, Pa, Ps, Q | 56 | 15 | 0.80 | 1.6 | 15 877 | 9768 |
| 1007C | C | Jul-10 | 76 | n/a | Mu, Q | n/a | n/a | n/a | n/a | 16 742 | 5907 |
| 1002E | E | Feb-10 | 62 | 7.24 | Mu, O, Q | 56 | 47 | 0.80 | 9.1 | 16 522 | 10 212 |
| Sums: | 285 719 | 164 178 |
a
See Figure 1 for site locations in GBS.
b
Temperature for sediment samples recorded in water directly above sample sites.
c
Al, albite; Am, analcime; An, andalusite; As, andesine; bd, Below detection limit (<0.1 μℳ); L, labradorite; Mi, microcline; Mu, muscovite; n/a, Data not collected; O, orthoclase; Pa, paragonite; Ps, pseudomalachite; Q, quartz.
d
Pyrotags generated by 454 sequencing.
e
Pyrotags remaining after chimera check and other quality filters.