Table 1.
General sampling information on vent fluids from Broken Spur (BS) and Rainbow (Rbw).
| Lat. (N) | Lon. (W) | Depth (m) | Victor dive | T-max (°C) | dFe at orifice (μM) | ∑H2S (mM) | Samplings (m above orifice) | |
|---|---|---|---|---|---|---|---|---|
| BS Spire | 29°10' 5.2'' | 43°10'28.45'' | 3,060 | 690 | 310 | 188.2 | 5.6 | 0, 0.1, 1, 2, 5 |
| BS Chandelier | 29°10'3.27'' | 43°10'26.22'' | 3,046 | 692 | n.m. | 743.6 | 3.1 | 0, 0.1, 1, 3 |
| BS Dragon XIII | 29°10'2.96'' | 43°10'27.59'' | 3,046 | 692 | 332 | 728.7 | 2.7 | 0, 0.1, 1.5 |
| Rbw Magali | 36°13'75.25'' | 33°54'22.83'' | 2,238 | 694 | 372 | 22791.3 | bdl | 0, 0.1, 1, 2, 3, 5 |
| Rbw M2 (Fum. Nouveau) | 36°13'45.18'' | 33°54'12.78'' | 2,321 | 686 | 320 | 4978.6 | bdl | 0, 0.2, 1.5, 4, 7 |
| Rbw M1a (Fum. Tres Dense) | 36°13'45.12'' | 33°54'3.24'' | 2,238 | 684 | 300 | 5430.7 | bdl | 0, 0.3, 2, 3, 5, 12 |
“nm” not measured bdl: below detection limit – T-max are the highest temperatures observed during the particular sampling at the start of the plume profiling. End-member temperatures may differ.